move flags to FlagSet

.circleci/config.yml

@@ -7,7 +7,7 @@ jobs:
     steps:
       - checkout
       - setup_remote_docker:
-          version: 19.03.13
+          version: 17.05.0-ce
       - run: make image
       - deploy: 
           command: |

.gitignore

@@ -1,4 +1,3 @@
 ctop
 .idea
-/vendor/
+/vendor/
-*.log

Dockerfile

@@ -1,4 +1,4 @@
-FROM quay.io/vektorcloud/go:1.15
+FROM quay.io/vektorcloud/go:1.11
 
 RUN apk add --no-cache make
 

Makefile

@@ -1,7 +1,8 @@
 NAME=ctop
 VERSION=$(shell cat VERSION)
 BUILD=$(shell git rev-parse --short HEAD)
-LD_FLAGS="-w -X main.version=$(VERSION) -X main.build=$(BUILD)"
+EXT_LD_FLAGS="-Wl,--allow-multiple-definition"
+LD_FLAGS="-w -X main.version=$(VERSION) -X main.build=$(BUILD) -extldflags=$(EXT_LD_FLAGS)"
 
 clean:
 	rm -rf _build/ release/
@@ -10,27 +11,27 @@ build:
 	go mod download
 	CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o ctop
 
+build-dev:
+	go build -ldflags "-w -X main.version=$(VERSION)-dev -X main.build=$(BUILD) -extldflags=$(EXT_LD_FLAGS)"
+
 build-all:
 	mkdir -p _build
-	GOOS=darwin  GOARCH=amd64 CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-darwin-amd64
+	GOOS=darwin  GOARCH=amd64 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-darwin-amd64
-	GOOS=linux   GOARCH=amd64 CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-linux-amd64
+	GOOS=linux   GOARCH=amd64 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-linux-amd64
-	GOOS=linux   GOARCH=arm   CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-linux-arm
+	GOOS=linux   GOARCH=arm   go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-linux-arm
-	GOOS=linux   GOARCH=arm64 CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-linux-arm64
+	GOOS=linux   GOARCH=arm64 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-linux-arm64
-	GOOS=windows GOARCH=amd64 CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-windows-amd64
+	GOOS=windows GOARCH=amd64 go build -tags release -ldflags $(LD_FLAGS) -o _build/ctop-$(VERSION)-windows-amd64
 	cd _build; sha256sum * > sha256sums.txt
 
-run-dev:
-	rm -f ctop.sock ctop
-	go build -ldflags $(LD_FLAGS) -o ctop
-	CTOP_DEBUG=1 ./ctop
-
 image:
 	docker build -t ctop -f Dockerfile .
 
 release:
 	mkdir release
+	go get github.com/progrium/gh-release/...
 	cp _build/* release
-	cd release; sha256sum --quiet --check sha256sums.txt && \
+	cd release; sha256sum --quiet --check sha256sums.txt
-	gh release create $(VERSION) -d -t v$(VERSION) *
+	gh-release create bcicen/$(NAME) $(VERSION) \
+		$(shell git rev-parse --abbrev-ref HEAD) $(VERSION)
 
 .PHONY: build

README.md

@@ -2,14 +2,14 @@
 
 #
 
-![release][release] ![homebrew][homebrew] ![macports][macports]
+![release][release] ![homebrew][homebrew]
 
 Top-like interface for container metrics
 
 `ctop` provides a concise and condensed overview of real-time metrics for multiple containers:
 <p align="center"><img src="_docs/img/grid.gif" alt="ctop"/></p>
 
-as well as a [single container view][single_view] for inspecting a specific container.
+as well as an [single container view][single_view] for inspecting a specific container.
 
 `ctop` comes with built-in support for Docker and runC; connectors for other container and cluster systems are planned for future releases.
 
@@ -17,24 +17,10 @@ as well as a [single container view][single_view] for inspecting a specific cont
 
 Fetch the [latest release](https://github.com/bcicen/ctop/releases) for your platform:
 
-#### Debian/Ubuntu
+#### Linux
-
-Maintained by a [third party](https://packages.azlux.fr/)
-```bash
-echo "deb http://packages.azlux.fr/debian/ buster main" | sudo tee /etc/apt/sources.list.d/azlux.list
-wget -qO - https://azlux.fr/repo.gpg.key | sudo apt-key add -
-sudo apt update
-sudo apt install docker-ctop
-```
-
-#### Arch
-
-`ctop` is available for Arch in the [AUR](https://aur.archlinux.org/packages/ctop-bin/)
-
-#### Linux (Generic)
 
 ```bash
-sudo wget https://github.com/bcicen/ctop/releases/download/v0.7.6/ctop-0.7.6-linux-amd64 -O /usr/local/bin/ctop
+sudo wget https://github.com/bcicen/ctop/releases/download/v0.7.1/ctop-0.7.1-linux-amd64 -O /usr/local/bin/ctop
 sudo chmod +x /usr/local/bin/ctop
 ```
 
@@ -45,11 +31,7 @@ brew install ctop
 ```
 or
 ```bash
-sudo port install ctop
+sudo curl -Lo /usr/local/bin/ctop https://github.com/bcicen/ctop/releases/download/v0.7.1/ctop-0.7.1-darwin-amd64
-```
-or
-```bash
-sudo curl -Lo /usr/local/bin/ctop https://github.com/bcicen/ctop/releases/download/v0.7.6/ctop-0.7.6-darwin-amd64
 sudo chmod +x /usr/local/bin/ctop
 ```
 
@@ -58,10 +40,12 @@ sudo chmod +x /usr/local/bin/ctop
 ```bash
 docker run --rm -ti \
   --name=ctop \
-  --volume /var/run/docker.sock:/var/run/docker.sock:ro \
+  -v /var/run/docker.sock:/var/run/docker.sock \
   quay.io/vektorlab/ctop:latest
 ```
 
+`ctop` is also available for Arch in the [AUR](https://aur.archlinux.org/packages/ctop-bin/)
+
 ## Building
 
 Build steps can be found [here][build].
@@ -72,47 +56,39 @@ Build steps can be found [here][build].
 
 ### Config file
 
-While running, use `S` to save the current filters, sort field, and other options to a default config path (`~/.config/ctop/config` on XDG systems, else `~/.ctop`).
+While running, use `S` to save the current filters, sort field, and other options to a default config path. These settings will be loaded and applied the next time `ctop` is started.
-
-Config file values will be loaded and applied the next time `ctop` is started.
 
 ### Options
 
 Option | Description
 --- | ---
-`-a`	| show active containers only
+-a	| show active containers only
-`-f <string>` | set an initial filter string
+-f \<string\> | set an initial filter string
-`-h`	| display help dialog
+-h	| display help dialog
-`-i`  | invert default colors
+-i  | invert default colors
-`-r`	| reverse container sort order
+-r	| reverse container sort order
-`-s`  | select initial container sort field
+-s  | select initial container sort field
-`-v`	| output version information and exit
+-scale-cpu	| show cpu as % of system total
+-v	| output version information and exit
 
 ### Keybindings
 
-|           Key            | Action                                                     |
+Key | Action
-| :----------------------: | ---------------------------------------------------------- |
+--- | ---
-| <kbd>&lt;ENTER&gt;</kbd> | Open container menu                                        |
+\<enter\> | Open container menu
-|       <kbd>a</kbd>       | Toggle display of all (running and non-running) containers |
+a | Toggle display of all (running and non-running) containers
-|       <kbd>f</kbd>       | Filter displayed containers (`esc` to clear when open)     |
+f | Filter displayed containers (`esc` to clear when open)
-|       <kbd>H</kbd>       | Toggle ctop header                                         |
+H | Toggle ctop header
-|       <kbd>h</kbd>       | Open help dialog                                           |
+h | Open help dialog
-|       <kbd>s</kbd>       | Select container sort field                                |
+s | Select container sort field
-|       <kbd>r</kbd>       | Reverse container sort order                               |
+r | Reverse container sort order
-|       <kbd>o</kbd>       | Open single view                                           |
+o | Open single view
-|       <kbd>l</kbd>       | View container logs (`t` to toggle timestamp when open)    |
+l | View container logs (`t` to toggle timestamp when open)
-|       <kbd>e</kbd>       | Exec Shell                                                 |
+S | Save current configuration to file
-|       <kbd>c</kbd>       | Configure columns                                          |
+q | Quit ctop
-|       <kbd>S</kbd>       | Save current configuration to file                         |
-|       <kbd>q</kbd>       | Quit ctop                                                  |
 
 [build]: _docs/build.md
 [connectors]: _docs/connectors.md
 [single_view]: _docs/single.md
 [release]: https://img.shields.io/github/release/bcicen/ctop.svg "ctop"
 [homebrew]: https://img.shields.io/homebrew/v/ctop.svg "ctop"
-[macports]: https://repology.org/badge/version-for-repo/macports/ctop.svg?header=macports "ctop"
-
-## Alternatives
-
-See [Awesome Docker list](https://github.com/veggiemonk/awesome-docker/blob/master/README.md#terminal) for similar tools to work with Docker. 

VERSION

@@ -1 +1 @@
-0.7.6
+0.7.1

_docs/build.md

@@ -1,8 +1,10 @@
 # Build
 
-To build `ctop` from source, simply clone the repo and run:
+To build `ctop` from source, ensure you have [dep](https://github.com/golang/dep) installed and run:
 
 ```bash
+go get github.com/bcicen/ctop && \
+cd $GOPATH/src/github.com/bcicen/ctop && \
 make build
 ```
 
@@ -14,8 +16,5 @@ make image
 Now you can run your local image:
 
 ```bash
-docker run --rm -ti \
+docker run -ti --name ctop --rm -v /var/run/docker.sock:/var/run/docker.sock ctop
-  --name ctop \
-  -v /var/run/docker.sock:/var/run/docker.sock \
-  ctop:latest
 ```

_docs/connectors.md

@@ -1,4 +1,4 @@
-# Connectors
+# connectors
 
 `ctop` comes with the below native connectors, enabled via the `--connector` option.
 

_docs/debug.md

@@ -54,18 +54,3 @@ CTOP_DEBUG=1 CTOP_DEBUG_TCP=1 ./ctop
 ```
 
 A TCP listener for streaming log messages will be started on the default listen address(`0.0.0.0:9000`)
-
-## Log to file
-
-You can also log to a file by specifying `CTOP_DEBUG_FILE=/path/to/ctop.log` environment variable:
-```sh
-CTOP_DEBUG=1 CTOP_DEBUG_FILE=ctop.log ./ctop
-```
-
-This is useful for GoLand to see logs right in debug panel: 
-* Edit Run configuration 
-* Go to Logs tab
-* Specify this log file in "Log file to be shown in console".
-Then during debugging you'll see the log tab in debug panel:
-
-![Debug in GoLand](img/goland_debug.png)

_docs/status.md

@@ -1,30 +0,0 @@
-# Status Indicator
-
-The `ctop` grid view provides a compact status indicator to convey container state
-
-<img width="200px" src="img/status.png" alt="ctop"/>
-
-### Status
-
-<span align="center">
-
-Appearance | Description
---- | ---
-red | container is stopped
-green | container is running
-▮▮ | container is paused
-
-</span>
-
-### Health
-If the container is configured with a health check, a `+` will appear next to the indicator
-
-<span align="center">
-
-Appearance | Description
---- | ---
-red | health check in failed state
-yellow | health check in starting state
-green | health check in OK state
-
-</span>

config/columns.go

@@ -1,170 +0,0 @@
-package config
-
-import (
-	"strings"
-)
-
-// defaults
-var defaultColumns = []Column{
-	{
-		Name:    "status",
-		Label:   "Status Indicator",
-		Enabled: true,
-	},
-	{
-		Name:    "name",
-		Label:   "Container Name",
-		Enabled: true,
-	},
-	{
-		Name:    "id",
-		Label:   "Container ID",
-		Enabled: true,
-	},
-	{
-		Name:    "image",
-		Label:   "Image name",
-		Enabled: false,
-	},
-	{
-		Name:    "ports",
-		Label:   "Exposed ports",
-		Enabled: false,
-	},
-	{
-		Name:    "IPs",
-		Label:   "Exposed IPs",
-		Enabled: false,
-	},
-	{
-		Name:    "created",
-		Label:   "Date created",
-		Enabled: false,
-	},
-	{
-		Name:    "cpu",
-		Label:   "CPU Usage",
-		Enabled: true,
-	},
-	{
-		Name:    "cpus",
-		Label:   "CPU Usage (% of system total)",
-		Enabled: false,
-	},
-	{
-		Name:    "mem",
-		Label:   "Memory Usage",
-		Enabled: true,
-	},
-	{
-		Name:    "net",
-		Label:   "Network RX/TX",
-		Enabled: true,
-	},
-	{
-		Name:    "io",
-		Label:   "Disk IO Read/Write",
-		Enabled: true,
-	},
-	{
-		Name:    "pids",
-		Label:   "Container PID Count",
-		Enabled: true,
-	},
-}
-
-type Column struct {
-	Name    string
-	Label   string
-	Enabled bool
-}
-
-// ColumnsString returns an ordered and comma-delimited string of currently enabled Columns
-func ColumnsString() string { return strings.Join(EnabledColumns(), ",") }
-
-// EnabledColumns returns an ordered array of enabled column names
-func EnabledColumns() (a []string) {
-	lock.RLock()
-	defer lock.RUnlock()
-	for _, col := range GlobalColumns {
-		if col.Enabled {
-			a = append(a, col.Name)
-		}
-	}
-	return a
-}
-
-// ColumnToggle toggles the enabled status of a given column name
-func ColumnToggle(name string) {
-	col := GlobalColumns[colIndex(name)]
-	col.Enabled = !col.Enabled
-	log.Noticef("config change [column-%s]: %t -> %t", col.Name, !col.Enabled, col.Enabled)
-}
-
-// ColumnLeft moves the column with given name up one position, if possible
-func ColumnLeft(name string) {
-	idx := colIndex(name)
-	if idx > 0 {
-		swapCols(idx, idx-1)
-	}
-}
-
-// ColumnRight moves the column with given name up one position, if possible
-func ColumnRight(name string) {
-	idx := colIndex(name)
-	if idx < len(GlobalColumns)-1 {
-		swapCols(idx, idx+1)
-	}
-}
-
-// Set Column order and enabled status from one or more provided Column names
-func SetColumns(names []string) {
-	var (
-		n          int
-		curColStr  = ColumnsString()
-		newColumns = make([]*Column, len(GlobalColumns))
-	)
-
-	lock.Lock()
-
-	// add enabled columns by name
-	for _, name := range names {
-		newColumns[n] = popColumn(name)
-		newColumns[n].Enabled = true
-		n++
-	}
-
-	// extend with omitted columns as disabled
-	for _, col := range GlobalColumns {
-		newColumns[n] = col
-		newColumns[n].Enabled = false
-		n++
-	}
-
-	GlobalColumns = newColumns
-	lock.Unlock()
-
-	log.Noticef("config change [columns]: %s -> %s", curColStr, ColumnsString())
-}
-
-func swapCols(i, j int) { GlobalColumns[i], GlobalColumns[j] = GlobalColumns[j], GlobalColumns[i] }
-
-func popColumn(name string) *Column {
-	idx := colIndex(name)
-	if idx < 0 {
-		panic("no such column name: " + name)
-	}
-	col := GlobalColumns[idx]
-	GlobalColumns = append(GlobalColumns[:idx], GlobalColumns[idx+1:]...)
-	return col
-}
-
-// return index of column with given name, if any
-func colIndex(name string) int {
-	for n, c := range GlobalColumns {
-		if c.Name == name {
-			return n
-		}
-	}
-	return -1
-}

config/file.go

@@ -3,7 +3,6 @@ package config
 import (
 	"fmt"
 	"os"
-	"path/filepath"
 	"regexp"
 	"strings"
 
@@ -20,28 +19,19 @@ type File struct {
 }
 
 func exportConfig() File {
-	// update columns param from working config
-	Update("columns", ColumnsString())
-
-	lock.RLock()
-	defer lock.RUnlock()
-
 	c := File{
 		Options: make(map[string]string),
 		Toggles: make(map[string]bool),
 	}
-
 	for _, p := range GlobalParams {
 		c.Options[p.Key] = p.Val
 	}
 	for _, sw := range GlobalSwitches {
 		c.Toggles[sw.Key] = sw.Val
 	}
-
 	return c
 }
 
-//
 func Read() error {
 	var config File
 
@@ -53,26 +43,13 @@ func Read() error {
 	if _, err := toml.DecodeFile(path, &config); err != nil {
 		return err
 	}
+
 	for k, v := range config.Options {
 		Update(k, v)
 	}
 	for k, v := range config.Toggles {
 		UpdateSwitch(k, v)
 	}
-
-	// set working column config, if provided
-	colStr := GetVal("columns")
-	if len(colStr) > 0 {
-		var colNames []string
-		for _, s := range strings.Split(colStr, ",") {
-			s = strings.TrimSpace(s)
-			if s != "" {
-				colNames = append(colNames, s)
-			}
-		}
-		SetColumns(colNames)
-	}
-
 	return nil
 }
 
@@ -82,7 +59,7 @@ func Write() (path string, err error) {
 		return path, err
 	}
 
-	cfgdir := filepath.Dir(path)
+	cfgdir := basedir(path)
 	// create config dir if not exist
 	if _, err := os.Stat(cfgdir); err != nil {
 		err = os.MkdirAll(cfgdir, 0755)
@@ -91,13 +68,6 @@ func Write() (path string, err error) {
 		}
 	}
 
-	// remove prior to writing new file
-	if err := os.Remove(path); err != nil {
-		if !os.IsNotExist(err) {
-			return path, err
-		}
-	}
-
 	file, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE, 0644)
 	if err != nil {
 		return path, fmt.Errorf("failed to open config for writing: %s", err)
@@ -142,3 +112,8 @@ func xdgSupport() bool {
 	}
 	return false
 }
+
+func basedir(path string) string {
+	parts := strings.Split(path, "/")
+	return strings.Join((parts[0 : len(parts)-1]), "/")
+}

config/main.go

@@ -3,7 +3,6 @@ package config
 import (
 	"fmt"
 	"os"
-	"sync"
 
 	"github.com/bcicen/ctop/logging"
 )
@@ -11,24 +10,17 @@ import (
 var (
 	GlobalParams   []*Param
 	GlobalSwitches []*Switch
-	GlobalColumns  []*Column
-	lock           sync.RWMutex
 	log            = logging.Init()
 )
 
 func Init() {
-	for _, p := range defaultParams {
+	for _, p := range params {
 		GlobalParams = append(GlobalParams, p)
-		log.Infof("loaded default config param [%s]: %s", quote(p.Key), quote(p.Val))
+		log.Infof("loaded config param: %s: %s", quote(p.Key), quote(p.Val))
 	}
-	for _, s := range defaultSwitches {
+	for _, s := range switches {
 		GlobalSwitches = append(GlobalSwitches, s)
-		log.Infof("loaded default config switch [%s]: %t", quote(s.Key), s.Val)
+		log.Infof("loaded config switch: %s: %t", quote(s.Key), s.Val)
-	}
-	for _, c := range defaultColumns {
-		x := c
-		GlobalColumns = append(GlobalColumns, &x)
-		log.Infof("loaded default widget config [%s]: %t", quote(x.Name), x.Enabled)
 	}
 }
 

config/param.go

@@ -1,7 +1,7 @@
 package config
 
 // defaults
-var defaultParams = []*Param{
+var params = []*Param{
 	&Param{
 		Key:   "filterStr",
 		Val:   "",
@@ -13,9 +13,9 @@ var defaultParams = []*Param{
 		Label: "Container Sort Field",
 	},
 	&Param{
-		Key:   "columns",
+		Key:   "namespace",
-		Val:   "status,name,id,cpu,mem,net,io,pids",
+		Val:   "state",
-		Label: "Enabled Columns",
+		Label: "Kubernetes namespace for monitoring",
 	},
 }
 
@@ -27,9 +27,6 @@ type Param struct {
 
 // Get Param by key
 func Get(k string) *Param {
-	lock.RLock()
-	defer lock.RUnlock()
-
 	for _, p := range GlobalParams {
 		if p.Key == k {
 			return p
@@ -38,7 +35,7 @@ func Get(k string) *Param {
 	return &Param{} // default
 }
 
-// GetVal gets Param value by key
+// Get Param value by key
 func GetVal(k string) string {
 	return Get(k).Val
 }
@@ -46,10 +43,7 @@ func GetVal(k string) string {
 // Set param value
 func Update(k, v string) {
 	p := Get(k)
-	log.Noticef("config change [%s]: %s -> %s", k, quote(p.Val), quote(v))
+	log.Noticef("config change: %s: %s -> %s", k, quote(p.Val), quote(v))
-
-	lock.Lock()
-	defer lock.Unlock()
 	p.Val = v
 	// log.Errorf("ignoring update for non-existant parameter: %s", k)
 }

config/switch.go

@@ -1,7 +1,7 @@
 package config
 
 // defaults
-var defaultSwitches = []*Switch{
+var switches = []*Switch{
 	&Switch{
 		Key:   "sortReversed",
 		Val:   false,
@@ -22,6 +22,11 @@ var defaultSwitches = []*Switch{
 		Val:   true,
 		Label: "Enable status header",
 	},
+	&Switch{
+		Key:   "scaleCpu",
+		Val:   false,
+		Label: "Show CPU as %% of system total",
+	},
 }
 
 type Switch struct {
@@ -30,11 +35,8 @@ type Switch struct {
 	Label string
 }
 
-// GetSwitch returns Switch by key
+// Return Switch by key
 func GetSwitch(k string) *Switch {
-	lock.RLock()
-	defer lock.RUnlock()
-
 	for _, sw := range GlobalSwitches {
 		if sw.Key == k {
 			return sw
@@ -43,19 +45,15 @@ func GetSwitch(k string) *Switch {
 	return &Switch{} // default
 }
 
-// GetSwitchVal returns Switch value by key
+// Return Switch value by key
 func GetSwitchVal(k string) bool {
 	return GetSwitch(k).Val
 }
 
 func UpdateSwitch(k string, val bool) {
 	sw := GetSwitch(k)
-
-	lock.Lock()
-	defer lock.Unlock()
-
 	if sw.Val != val {
-		log.Noticef("config change [%s]: %t -> %t", k, sw.Val, val)
+		log.Noticef("config change: %s: %t -> %t", k, sw.Val, val)
 		sw.Val = val
 	}
 }
@@ -63,11 +61,8 @@ func UpdateSwitch(k string, val bool) {
 // Toggle a boolean switch
 func Toggle(k string) {
 	sw := GetSwitch(k)
-
+	newVal := !sw.Val
-	lock.Lock()
+	log.Noticef("config change: %s: %t -> %t", k, sw.Val, newVal)
-	defer lock.Unlock()
+	sw.Val = newVal
-
-	sw.Val = !sw.Val
-	log.Noticef("config change [%s]: %t -> %t", k, !sw.Val, sw.Val)
 	//log.Errorf("ignoring toggle for non-existant switch: %s", k)
 }

connector/collector/docker.go

@@ -1,6 +1,7 @@
 package collector
 
 import (
+	"github.com/bcicen/ctop/config"
 	"github.com/bcicen/ctop/models"
 	api "github.com/fsouza/go-dockerclient"
 )
@@ -15,13 +16,15 @@ type Docker struct {
 	done       chan bool
 	lastCpu    float64
 	lastSysCpu float64
+	scaleCpu   bool
 }
 
 func NewDocker(client *api.Client, id string) *Docker {
 	return &Docker{
-		Metrics: models.Metrics{},
+		Metrics:  models.Metrics{},
-		id:      id,
+		id:       id,
-		client:  client,
+		client:   client,
+		scaleCpu: config.GetSwitchVal("scaleCpu"),
 	}
 }
 
@@ -71,20 +74,22 @@ func (c *Docker) Logs() LogCollector {
 
 // Stop collector
 func (c *Docker) Stop() {
-	c.running = false
 	c.done <- true
 }
 
 func (c *Docker) ReadCPU(stats *api.Stats) {
-	ncpus := uint8(len(stats.CPUStats.CPUUsage.PercpuUsage))
+	ncpus := float64(len(stats.CPUStats.CPUUsage.PercpuUsage))
 	total := float64(stats.CPUStats.CPUUsage.TotalUsage)
 	system := float64(stats.CPUStats.SystemCPUUsage)
 
 	cpudiff := total - c.lastCpu
 	syscpudiff := system - c.lastSysCpu
 
-	c.NCpus = ncpus
+	if c.scaleCpu {
-	c.CPUUtil = percent(cpudiff, syscpudiff)
+		c.CPUUtil = round((cpudiff / syscpudiff * 100))
+	} else {
+		c.CPUUtil = round((cpudiff / syscpudiff * 100) * ncpus)
+	}
 	c.lastCpu = total
 	c.lastSysCpu = system
 	c.Pids = int(stats.PidsStats.Current)
@@ -109,10 +114,10 @@ func (c *Docker) ReadIO(stats *api.Stats) {
 	var read, write int64
 	for _, blk := range stats.BlkioStats.IOServiceBytesRecursive {
 		if blk.Op == "Read" {
-			read += int64(blk.Value)
+			read = int64(blk.Value)
 		}
 		if blk.Op == "Write" {
-			write += int64(blk.Value)
+			write = int64(blk.Value)
 		}
 	}
 	c.IOBytesRead, c.IOBytesWrite = read, write

connector/collector/docker_logs.go

@@ -34,22 +34,21 @@ func (l *DockerLogs) Stream() chan models.Log {
 		Context:      ctx,
 		Container:    l.id,
 		OutputStream: w,
-		//ErrorStream:  w,
+		ErrorStream:  w,
-		Stdout:      true,
+		Stdout:       true,
-		Stderr:      true,
+		Stderr:       true,
-		Tail:        "20",
+		Tail:         "10",
-		Follow:      true,
+		Follow:       true,
-		Timestamps:  true,
+		Timestamps:   true,
-		RawTerminal: true,
 	}
 
 	// read io pipe into channel
 	go func() {
 		scanner := bufio.NewScanner(r)
 		for scanner.Scan() {
-			parts := strings.SplitN(scanner.Text(), " ", 2)
+			parts := strings.Split(scanner.Text(), " ")
 			ts := l.parseTime(parts[0])
-			logCh <- models.Log{Timestamp: ts, Message: parts[1]}
+			logCh <- models.Log{Timestamp: ts, Message: strings.Join(parts[1:], " ")}
 		}
 	}()
 
@@ -74,26 +73,10 @@ func (l *DockerLogs) Stream() chan models.Log {
 func (l *DockerLogs) Stop() { l.done <- true }
 
 func (l *DockerLogs) parseTime(s string) time.Time {
-	ts, err := time.Parse(time.RFC3339Nano, s)
+	ts, err := time.Parse("2006-01-02T15:04:05.000000000Z", s)
-	if err == nil {
+	if err != nil {
-		return ts
+		log.Errorf("failed to parse container log: %s", err)
+		ts = time.Now()
 	}
-
+	return ts
-	ts, err2 := time.Parse(time.RFC3339Nano, l.stripPfx(s))
-	if err2 == nil {
-		return ts
-	}
-
-	log.Errorf("failed to parse container log: %s", err)
-	log.Errorf("failed to parse container log2: %s", err2)
-	return time.Now()
-}
-
-// attempt to strip message header prefix from a given raw docker log string
-func (l *DockerLogs) stripPfx(s string) string {
-	b := []byte(s)
-	if len(b) > 8 {
-		return string(b[8:])
-	}
-	return s
 }

connector/collector/kubernetes.go

@@ -0,0 +1,128 @@
+package collector
+
+import (
+	"time"
+
+	"k8s.io/metrics/pkg/apis/metrics/v1alpha1"
+	clientset "k8s.io/metrics/pkg/client/clientset/versioned"
+
+	"github.com/bcicen/ctop/config"
+	"github.com/bcicen/ctop/models"
+	"k8s.io/api/core/v1"
+
+	"k8s.io/client-go/kubernetes"
+)
+
+// Kubernetes collector
+type Kubernetes struct {
+	models.Metrics
+	name       string
+	client     clientset.Interface
+	clientset  *kubernetes.Clientset
+	running    bool
+	stream     chan models.Metrics
+	done       chan bool
+	lastCpu    float64
+	lastSysCpu float64
+	scaleCpu   bool
+}
+
+func NewKubernetes(client *kubernetes.Clientset, name string) *Kubernetes {
+	return &Kubernetes{
+		Metrics:   models.Metrics{},
+		name:      name,
+		client:    clientset.New(client.RESTClient()),
+		clientset: client,
+		scaleCpu:  config.GetSwitchVal("scaleCpu"),
+	}
+}
+
+func (k *Kubernetes) Start() {
+	k.done = make(chan bool)
+	k.stream = make(chan models.Metrics)
+
+	go func() {
+		k.running = false
+		for {
+
+			result := &v1alpha1.PodMetrics{}
+			err := k.clientset.RESTClient().Get().AbsPath("/api/v1/namespaces/kube-system/services/http:heapster:/proxy/apis/metrics/v1alpha1/namespaces/" + config.GetVal("namespace") + "/pods/" + k.name).Do().Into(result)
+
+			if err != nil {
+				log.Errorf("has error %s here %s", k.name, err.Error())
+				time.Sleep(1 * time.Second)
+				continue
+			}
+			k.ReadCPU(result)
+			k.ReadMem(result)
+			k.stream <- k.Metrics
+		}
+	}()
+
+	k.running = true
+	log.Infof("collector started for container: %s", k.name)
+}
+
+func (c *Kubernetes) Running() bool {
+	return c.running
+}
+
+func (c *Kubernetes) Stream() chan models.Metrics {
+	return c.stream
+}
+
+func (c *Kubernetes) Logs() LogCollector {
+	return NewKubernetesLogs(c.name, c.clientset)
+}
+
+// Stop collector
+func (c *Kubernetes) Stop() {
+	c.done <- true
+}
+
+func (k *Kubernetes) ReadCPU(metrics *v1alpha1.PodMetrics) {
+	all := int64(0)
+	for _, c := range metrics.Containers {
+		v := c.Usage[v1.ResourceCPU]
+		all += v.Value()
+	}
+	if all != 0 {
+		k.CPUUtil = round(float64(all))
+	}
+}
+
+func (k *Kubernetes) ReadMem(metrics *v1alpha1.PodMetrics) {
+	all := int64(0)
+	for _, c := range metrics.Containers {
+		v := c.Usage[v1.ResourceMemory]
+		a, ok := v.AsInt64()
+		if ok {
+			all += a
+		}
+	}
+	k.MemUsage = all
+	k.MemLimit = int64(0)
+	//k.MemPercent = percent(float64(k.MemUsage), float64(k.MemLimit))
+}
+
+//func (c *Kubernetes) ReadNet(stats *api.Stats) {
+//	var rx, tx int64
+//	for _, network := range stats.Networks {
+//		rx += int64(network.RxBytes)
+//		tx += int64(network.TxBytes)
+//	}
+//	c.NetRx, c.NetTx = rx, tx
+//}
+//
+//func (c *Kubernetes) ReadIO(stats *api.Stats) {
+//	var read, write int64
+//	for _, blk := range stats.BlkioStats.IOServiceBytesRecursive {
+//		if blk.Op == "Read" {
+//			read = int64(blk.Value)
+//		}
+//		if blk.Op == "Write" {
+//			write = int64(blk.Value)
+//		}
+//	}
+//	c.IOBytesRead, c.IOBytesWrite = read, write
+//}

connector/collector/kubernetes_logs.go

@@ -0,0 +1,78 @@
+package collector
+
+import (
+	"time"
+
+	"github.com/bcicen/ctop/models"
+	"k8s.io/client-go/kubernetes"
+)
+
+type KubernetesLogs struct {
+	id     string
+	client *kubernetes.Clientset
+	done   chan bool
+}
+
+func NewKubernetesLogs(id string, client *kubernetes.Clientset) *KubernetesLogs {
+	return &KubernetesLogs{
+		id:     id,
+		client: client,
+		done:   make(chan bool),
+	}
+}
+
+func (l *KubernetesLogs) Stream() chan models.Log {
+	//r, w := io.Pipe()
+	logCh := make(chan models.Log)
+	//ctx, cancel := context.WithCancel(context.Background())
+
+	//opts := api.LogsOptions{
+	//	Context:      ctx,
+	//	Container:    l.id,
+	//	OutputStream: w,
+	//	ErrorStream:  w,
+	//	Stdout:       true,
+	//	Stderr:       true,
+	//	Tail:         "10",
+	//	Follow:       true,
+	//	Timestamps:   true,
+	//}
+
+	//// read io pipe into channel
+	//go func() {
+	//	scanner := bufio.NewScanner(r)
+	//	for scanner.Scan() {
+	//		parts := strings.Split(scanner.Text(), " ")
+	//		ts := l.parseTime(parts[0])
+	//		logCh <- models.Log{Timestamp: ts, Message: strings.Join(parts[1:], " ")}
+	//	}
+	//}()
+
+	//// connect to container log stream
+	//go func() {
+	//	err := l.client.Logs(opts)
+	//	if err != nil {
+	//		log.Errorf("error reading container logs: %s", err)
+	//	}
+	//	log.Infof("log reader stopped for container: %s", l.id)
+	//}()
+
+	//go func() {
+	//	<-l.done
+	//	cancel()
+	//}()
+
+	log.Infof("log reader started for container: %s", l.id)
+	return logCh
+}
+
+func (l *KubernetesLogs) Stop() { l.done <- true }
+
+func (l *KubernetesLogs) parseTime(s string) time.Time {
+	ts, err := time.Parse("2006-01-02T15:04:05.000000000Z", s)
+	if err != nil {
+		log.Errorf("failed to parse container log: %s", err)
+		ts = time.Now()
+	}
+	return ts
+}

connector/collector/mock.go

@@ -38,7 +38,6 @@ func (c *Mock) Start() {
 }
 
 func (c *Mock) Stop() {
-	c.running = false
 	c.done = true
 }
 

connector/collector/proc.go

@@ -4,14 +4,13 @@ package collector
 
 import (
 	linuxproc "github.com/c9s/goprocinfo/linux"
+	"github.com/opencontainers/runc/libcontainer/system"
 )
 
 var sysMemTotal = getSysMemTotal()
+var clockTicksPerSecond = uint64(system.GetClockTicks())
 
-const (
+const nanoSecondsPerSecond = 1e9
-	clockTicksPerSecond  uint64 = 100
-	nanoSecondsPerSecond        = 1e9
-)
 
 func getSysMemTotal() int64 {
 	stat, err := linuxproc.ReadMemInfo("/proc/meminfo")

connector/collector/runc.go

@@ -5,11 +5,10 @@ package collector
 import (
 	"time"
 
+	"github.com/bcicen/ctop/config"
+	"github.com/bcicen/ctop/models"
 	"github.com/opencontainers/runc/libcontainer"
 	"github.com/opencontainers/runc/libcontainer/cgroups"
-	"github.com/opencontainers/runc/types"
-
-	"github.com/bcicen/ctop/models"
 )
 
 // Runc collector
@@ -23,6 +22,7 @@ type Runc struct {
 	interval   int // collection interval, in seconds
 	lastCpu    float64
 	lastSysCpu float64
+	scaleCpu   bool
 }
 
 func NewRunc(libc libcontainer.Container) *Runc {
@@ -31,6 +31,7 @@ func NewRunc(libc libcontainer.Container) *Runc {
 		id:       libc.ID(),
 		libc:     libc,
 		interval: 1,
+		scaleCpu: config.GetSwitchVal("scaleCpu"),
 	}
 	return c
 }
@@ -46,7 +47,6 @@ func (c *Runc) Start() {
 }
 
 func (c *Runc) Stop() {
-	c.running = false
 	c.done = true
 }
 
@@ -86,15 +86,18 @@ func (c *Runc) run() {
 
 func (c *Runc) ReadCPU(stats *cgroups.Stats) {
 	u := stats.CpuStats.CpuUsage
-	ncpus := uint8(len(u.PercpuUsage))
+	ncpus := float64(len(u.PercpuUsage))
 	total := float64(u.TotalUsage)
 	system := float64(getSysCPUUsage())
 
 	cpudiff := total - c.lastCpu
 	syscpudiff := system - c.lastSysCpu
 
-	c.NCpus = ncpus
+	if c.scaleCpu {
-	c.CPUUtil = percent(cpudiff, syscpudiff)
+		c.CPUUtil = round((cpudiff / syscpudiff * 100))
+	} else {
+		c.CPUUtil = round((cpudiff / syscpudiff * 100) * ncpus)
+	}
 	c.lastCpu = total
 	c.lastSysCpu = system
 	c.Pids = int(stats.PidsStats.Current)
@@ -109,7 +112,7 @@ func (c *Runc) ReadMem(stats *cgroups.Stats) {
 	c.MemPercent = percent(float64(c.MemUsage), float64(c.MemLimit))
 }
 
-func (c *Runc) ReadNet(interfaces []*types.NetworkInterface) {
+func (c *Runc) ReadNet(interfaces []*libcontainer.NetworkInterface) {
 	var rx, tx int64
 	for _, network := range interfaces {
 		rx += int64(network.RxBytes)

connector/docker.go

@@ -2,7 +2,6 @@ package connector
 
 import (
 	"fmt"
-	"github.com/op/go-logging"
 	"strings"
 	"sync"
 
@@ -14,66 +13,31 @@ import (
 
 func init() { enabled["docker"] = NewDocker }
 
-var actionToStatus = map[string]string{
-	"start":   "running",
-	"die":     "exited",
-	"stop":    "exited",
-	"pause":   "paused",
-	"unpause": "running",
-}
-
-type StatusUpdate struct {
-	Cid    string
-	Field  string // "status" or "health"
-	Status string
-}
-
 type Docker struct {
 	client       *api.Client
 	containers   map[string]*container.Container
 	needsRefresh chan string // container IDs requiring refresh
-	statuses     chan StatusUpdate
-	closed       chan struct{}
 	lock         sync.RWMutex
 }
 
-func NewDocker() (Connector, error) {
+func NewDocker() Connector {
 	// init docker client
 	client, err := api.NewClientFromEnv()
 	if err != nil {
-		return nil, err
+		panic(err)
 	}
 	cm := &Docker{
 		client:       client,
 		containers:   make(map[string]*container.Container),
 		needsRefresh: make(chan string, 60),
-		statuses:     make(chan StatusUpdate, 60),
-		closed:       make(chan struct{}),
 		lock:         sync.RWMutex{},
 	}
-
-	// query info as pre-flight healthcheck
-	info, err := client.Info()
-	if err != nil {
-		return nil, err
-	}
-
-	log.Debugf("docker-connector ID: %s", info.ID)
-	log.Debugf("docker-connector Driver: %s", info.Driver)
-	log.Debugf("docker-connector Images: %d", info.Images)
-	log.Debugf("docker-connector Name: %s", info.Name)
-	log.Debugf("docker-connector ServerVersion: %s", info.ServerVersion)
-
 	go cm.Loop()
-	go cm.LoopStatuses()
 	cm.refreshAll()
 	go cm.watchEvents()
-	return cm, nil
+	return cm
 }
 
-// Docker implements Connector
-func (cm *Docker) Wait() struct{} { return <-cm.closed }
-
 // Docker events watcher
 func (cm *Docker) watchEvents() {
 	log.Info("docker event listener starting")
@@ -85,49 +49,17 @@ func (cm *Docker) watchEvents() {
 			continue
 		}
 
-		actionName := e.Action
+		actionName := strings.Split(e.Action, ":")[0]
-		// fast skip all exec_* events: exec_create, exec_start, exec_die
-		if strings.HasPrefix(actionName, "exec_") {
-			continue
-		}
-		// Action may have additional param i.e. "health_status: healthy"
-		// We need to strip to have only action name
-		sepIdx := strings.Index(actionName, ": ")
-		if sepIdx != -1 {
-			actionName = actionName[:sepIdx]
-		}
 
 		switch actionName {
-		// most frequent event is a health checks
+		case "start", "die", "pause", "unpause", "health_status":
-		case "health_status":
+			log.Debugf("handling docker event: action=%s id=%s", e.Action, e.ID)
-			healthStatus := e.Action[sepIdx+2:]
-			if log.IsEnabledFor(logging.DEBUG) {
-				log.Debugf("handling docker event: action=health_status id=%s %s", e.ID, healthStatus)
-			}
-			cm.statuses <- StatusUpdate{e.ID, "health", healthStatus}
-		case "create":
-			if log.IsEnabledFor(logging.DEBUG) {
-				log.Debugf("handling docker event: action=create id=%s", e.ID)
-			}
 			cm.needsRefresh <- e.ID
 		case "destroy":
-			if log.IsEnabledFor(logging.DEBUG) {
+			log.Debugf("handling docker event: action=%s id=%s", e.Action, e.ID)
-				log.Debugf("handling docker event: action=destroy id=%s", e.ID)
-			}
 			cm.delByID(e.ID)
-		default:
-			// check if this action changes status e.g. start -> running
-			status := actionToStatus[actionName]
-			if status != "" {
-				if log.IsEnabledFor(logging.DEBUG) {
-					log.Debugf("handling docker event: action=%s id=%s %s", actionName, e.ID, status)
-				}
-				cm.statuses <- StatusUpdate{e.ID, "status", status}
-			}
 		}
 	}
-	log.Info("docker event listener exited")
-	close(cm.closed)
 }
 
 func portsFormat(ports map[api.Port][]api.PortBinding) string {
@@ -160,12 +92,9 @@ func ipsFormat(networks map[string]api.ContainerNetwork) string {
 }
 
 func (cm *Docker) refresh(c *container.Container) {
-	insp, found, failed := cm.inspect(c.Id)
+	insp := cm.inspect(c.Id)
-	if failed {
-		return
-	}
 	// remove container if no longer exists
-	if !found {
+	if insp == nil {
 		cm.delByID(c.Id)
 		return
 	}
@@ -175,21 +104,20 @@ func (cm *Docker) refresh(c *container.Container) {
 	c.SetMeta("ports", portsFormat(insp.NetworkSettings.Ports))
 	c.SetMeta("created", insp.Created.Format("Mon Jan 2 15:04:05 2006"))
 	c.SetMeta("health", insp.State.Health.Status)
-	c.SetMeta("[ENV-VAR]", strings.Join(insp.Config.Env, ";"))
+	for _, env := range insp.Config.Env {
+		c.SetMeta("[ENV-VAR]", env)
+	}
 	c.SetState(insp.State.Status)
 }
 
-func (cm *Docker) inspect(id string) (insp *api.Container, found bool, failed bool) {
+func (cm *Docker) inspect(id string) *api.Container {
 	c, err := cm.client.InspectContainer(id)
 	if err != nil {
-		if _, notFound := err.(*api.NoSuchContainer); notFound {
+		if _, ok := err.(*api.NoSuchContainer); !ok {
-			return c, false, false
+			log.Errorf(err.Error())
 		}
-		// other error e.g. connection failed
-		log.Errorf("%s (%T)", err.Error(), err)
-		return c, false, true
 	}
-	return c, true, false
+	return c
 }
 
 // Mark all container IDs for refresh
@@ -197,8 +125,7 @@ func (cm *Docker) refreshAll() {
 	opts := api.ListContainersOptions{All: true}
 	allContainers, err := cm.client.ListContainers(opts)
 	if err != nil {
-		log.Errorf("%s (%T)", err.Error(), err)
+		panic(err)
-		return
 	}
 
 	for _, i := range allContainers {
@@ -210,36 +137,13 @@ func (cm *Docker) refreshAll() {
 }
 
 func (cm *Docker) Loop() {
-	for {
+	for id := range cm.needsRefresh {
-		select {
+		c := cm.MustGet(id)
-		case id := <-cm.needsRefresh:
+		cm.refresh(c)
-			c := cm.MustGet(id)
-			cm.refresh(c)
-		case <-cm.closed:
-			return
-		}
 	}
 }
 
-func (cm *Docker) LoopStatuses() {
+// Get a single container, creating one anew if not existing
-	for {
-		select {
-		case statusUpdate := <-cm.statuses:
-			c, _ := cm.Get(statusUpdate.Cid)
-			if c != nil {
-				if statusUpdate.Field == "health" {
-					c.SetMeta("health", statusUpdate.Status)
-				} else {
-					c.SetState(statusUpdate.Status)
-				}
-			}
-		case <-cm.closed:
-			return
-		}
-	}
-}
-
-// MustGet gets a single container, creating one anew if not existing
 func (cm *Docker) MustGet(id string) *container.Container {
 	c, ok := cm.Get(id)
 	// append container struct for new containers
@@ -257,7 +161,7 @@ func (cm *Docker) MustGet(id string) *container.Container {
 	return c
 }
 
-// Docker implements Connector
+// Get a single container, by ID
 func (cm *Docker) Get(id string) (*container.Container, bool) {
 	cm.lock.Lock()
 	c, ok := cm.containers[id]
@@ -273,7 +177,7 @@ func (cm *Docker) delByID(id string) {
 	log.Infof("removed dead container: %s", id)
 }
 
-// Docker implements Connector
+// Return array of all containers, sorted by field
 func (cm *Docker) All() (containers container.Containers) {
 	cm.lock.Lock()
 	for _, c := range cm.containers {
@@ -288,5 +192,5 @@ func (cm *Docker) All() (containers container.Containers) {
 
 // use primary container name
 func shortName(name string) string {
-	return strings.TrimPrefix(name, "/")
+	return strings.Replace(name, "/", "", 1)
 }

connector/kubernetes.go

@@ -0,0 +1,218 @@
+package connector
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"sync"
+	"time"
+
+	bcfg "github.com/bcicen/ctop/config"
+	"github.com/bcicen/ctop/connector/collector"
+	"github.com/bcicen/ctop/connector/manager"
+	"github.com/bcicen/ctop/container"
+	api "github.com/fsouza/go-dockerclient"
+	"k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/kubernetes"
+	"k8s.io/client-go/tools/clientcmd"
+)
+
+func init() { enabled["kubernetes"] = NewKubernetes }
+
+type Kubernetes struct {
+	namespace    string
+	clientset    *kubernetes.Clientset
+	containers   map[string]*container.Container
+	needsRefresh chan string // container IDs requiring refresh
+	lock         sync.RWMutex
+}
+
+func NewKubernetes() Connector {
+	var kubeconfig string
+	//if home := homeDir(); home != "" {
+	//	kubeconfig = flag.String("kubeconfig", filepath.Join(home, ".kube", "config"), "(optional) absolute path to the kubeconfig file")
+	//} else {
+	//	kubeconfig = flag.String("kubeconfig", "", "absolute path to the kubeconfig file")
+	//}
+	//flag.Parse()
+	kubeconfig = filepath.Join(homeDir(), ".kube", "config")
+
+	// use the current context in kubeconfig
+	config, err := clientcmd.BuildConfigFromFlags("", kubeconfig)
+	if err != nil {
+		log.Error(err.Error())
+		return nil
+	}
+
+	// create the clientset
+	clientset, err := kubernetes.NewForConfig(config)
+	if err != nil {
+		log.Error(err.Error())
+		return nil
+	}
+
+	// init docker client
+	k := &Kubernetes{
+		clientset:    clientset,
+		containers:   make(map[string]*container.Container),
+		needsRefresh: make(chan string, 60),
+		lock:         sync.RWMutex{},
+		namespace:    bcfg.GetVal("namespace"),
+	}
+	go k.Loop()
+	k.refreshAll()
+	go k.watchEvents()
+	return k
+}
+
+func (k *Kubernetes) watchEvents() {
+	for {
+		log.Info("kubernetes event listener starting")
+		allEvents, err := k.clientset.CoreV1().Events(k.namespace).List(metav1.ListOptions{})
+		if err != nil {
+			log.Error(err.Error())
+			return
+		}
+
+		for _, e := range allEvents.Items {
+			if e.Kind != "pod" {
+				continue
+			}
+
+			actionName := strings.Split(e.Action, ":")[0]
+
+			switch actionName {
+			case "start", "die", "pause", "unpause", "health_status":
+				log.Debugf("handling docker event: action=%s id=%s", e.Action, e.UID)
+				k.needsRefresh <- e.Name
+			case "destroy":
+				log.Debugf("handling docker event: action=%s id=%s", e.Action, e.UID)
+				k.delByID(e.Name)
+			default:
+				log.Debugf("handling docker event: %v", e)
+				k.needsRefresh <- e.Name
+			}
+		}
+		time.Sleep(1 * time.Second)
+	}
+}
+func (k *Kubernetes) Loop() {
+	for id := range k.needsRefresh {
+		c := k.MustGet(id)
+		k.refresh(c)
+	}
+}
+
+// Get a single container, creating one anew if not existing
+func (k *Kubernetes) MustGet(name string) *container.Container {
+	c, ok := k.Get(name)
+	// append container struct for new containers
+	if !ok {
+		// create collector
+		collector := collector.NewKubernetes(k.clientset, name)
+		// create manager
+		manager := manager.NewKubernetes(k.clientset, name)
+		// create container
+		c = container.New(name, collector, manager)
+		k.lock.Lock()
+		k.containers[name] = c
+		k.lock.Unlock()
+	}
+	return c
+}
+
+func (k *Kubernetes) refresh(c *container.Container) {
+	insp := k.inspect(c.Id)
+	// remove container if no longer exists
+	if insp == nil {
+		k.delByID(c.Id)
+		return
+	}
+	c.SetMeta("name", insp.Name)
+	if len(insp.Spec.Containers) >= 1 {
+		c.SetMeta("image", insp.Spec.Containers[0].Image)
+		c.SetMeta("ports", k8sPort(insp.Spec.Containers[0].Ports))
+		for _, env := range insp.Spec.Containers[0].Env {
+			c.SetMeta("[ENV-VAR]", env.Name+"="+env.Value)
+		}
+	}
+	c.SetMeta("IPs", insp.Status.PodIP)
+	c.SetMeta("created", insp.CreationTimestamp.Format("Mon Jan 2 15:04:05 2006"))
+	c.SetMeta("health", string(insp.Status.Phase))
+	c.SetState("running")
+}
+
+func k8sPort(ports []v1.ContainerPort) string {
+	str := []string{}
+	for _, p := range ports {
+		str = append(str, fmt.Sprintf("%s:%d -> %d", p.HostIP, p.HostPort, p.ContainerPort))
+	}
+	return strings.Join(str, "\n")
+}
+
+func (k *Kubernetes) inspect(id string) *v1.Pod {
+	p, err := k.clientset.CoreV1().Pods(k.namespace).Get(id, metav1.GetOptions{})
+	if err != nil {
+		if _, ok := err.(*api.NoSuchContainer); !ok {
+			log.Errorf(err.Error())
+		}
+	}
+	return p
+}
+
+// Remove containers by ID
+func (k *Kubernetes) delByID(name string) {
+	k.lock.Lock()
+	delete(k.containers, name)
+	k.lock.Unlock()
+	log.Infof("removed dead container: %s", name)
+}
+
+func (k *Kubernetes) Get(name string) (c *container.Container, ok bool) {
+	k.lock.Lock()
+	c, ok = k.containers[name]
+	k.lock.Unlock()
+	return
+}
+
+// Mark all container IDs for refresh
+func (k *Kubernetes) refreshAll() {
+	allPods, err := k.clientset.CoreV1().Pods(k.namespace).List(metav1.ListOptions{})
+	if err != nil {
+		log.Error(err.Error())
+		return
+	}
+
+	for _, pod := range allPods.Items {
+		c := k.MustGet(pod.Name)
+		c.SetMeta("uid", string(pod.UID))
+		c.SetMeta("name", pod.Name)
+		if pod.Initializers != nil && pod.Initializers.Result != nil {
+			c.SetState(pod.Initializers.Result.Status)
+		} else {
+			c.SetState(string(pod.Status.Phase))
+		}
+		k.needsRefresh <- c.Id
+	}
+}
+
+func (k *Kubernetes) All() (containers container.Containers) {
+	k.lock.Lock()
+	for _, c := range k.containers {
+		containers = append(containers, c)
+	}
+
+	containers.Sort()
+	containers.Filter()
+	k.lock.Unlock()
+	return containers
+}
+
+func homeDir() string {
+	if h := os.Getenv("HOME"); h != "" {
+		return h
+	}
+	return os.Getenv("USERPROFILE") // windows
+}

connector/main.go

@@ -3,8 +3,6 @@ package connector
 import (
 	"fmt"
 	"sort"
-	"sync"
-	"time"
 
 	"github.com/bcicen/ctop/container"
 	"github.com/bcicen/ctop/logging"
@@ -12,80 +10,10 @@ import (
 
 var (
 	log     = logging.Init()
-	enabled = make(map[string]ConnectorFn)
+	enabled = make(map[string]func() Connector)
 )
 
-type ConnectorFn func() (Connector, error)
+// return names for all enabled connectors on the current platform
-
-type Connector interface {
-	// All returns a pre-sorted container.Containers of all discovered containers
-	All() container.Containers
-	// Get returns a single container.Container by ID
-	Get(string) (*container.Container, bool)
-	// Wait blocks until the underlying connection is lost
-	Wait() struct{}
-}
-
-// ConnectorSuper provides initial connection and retry on failure for
-// an undlerying Connector type
-type ConnectorSuper struct {
-	conn   Connector
-	connFn ConnectorFn
-	err    error
-	lock   sync.RWMutex
-}
-
-func NewConnectorSuper(connFn ConnectorFn) *ConnectorSuper {
-	cs := &ConnectorSuper{
-		connFn: connFn,
-		err:    fmt.Errorf("connecting..."),
-	}
-	go cs.loop()
-	return cs
-}
-
-// Get returns the underlying Connector, or nil and an error
-// if the Connector is not yet initialized or is disconnected.
-func (cs *ConnectorSuper) Get() (Connector, error) {
-	cs.lock.RLock()
-	defer cs.lock.RUnlock()
-	if cs.err != nil {
-		return nil, cs.err
-	}
-	return cs.conn, nil
-}
-
-func (cs *ConnectorSuper) setError(err error) {
-	cs.lock.Lock()
-	defer cs.lock.Unlock()
-	cs.err = err
-}
-
-func (cs *ConnectorSuper) loop() {
-	const interval = 3
-	for {
-		log.Infof("initializing connector")
-
-		conn, err := cs.connFn()
-		if err != nil {
-			cs.setError(err)
-			log.Errorf("failed to initialize connector: %s (%T)", err, err)
-			log.Errorf("retrying in %ds", interval)
-			time.Sleep(interval * time.Second)
-		} else {
-			cs.conn = conn
-			cs.setError(nil)
-			log.Infof("successfully initialized connector")
-
-			// wait until connection closed
-			cs.conn.Wait()
-			cs.setError(fmt.Errorf("attempting to reconnect..."))
-			log.Infof("connector closed")
-		}
-	}
-}
-
-// Enabled returns names for all enabled connectors on the current platform
 func Enabled() (a []string) {
 	for k, _ := range enabled {
 		a = append(a, k)
@@ -94,11 +22,14 @@ func Enabled() (a []string) {
 	return a
 }
 
-// ByName returns a ConnectorSuper for a given name, or error if the connector
+func ByName(s string) (Connector, error) {
-// does not exists on the current platform
-func ByName(s string) (*ConnectorSuper, error) {
 	if cfn, ok := enabled[s]; ok {
-		return NewConnectorSuper(cfn), nil
+		return cfn(), nil
 	}
 	return nil, fmt.Errorf("invalid connector type \"%s\"", s)
 }
+
+type Connector interface {
+	All() container.Containers
+	Get(string) (*container.Container, bool)
+}

connector/manager/docker.go

@@ -3,9 +3,6 @@ package manager
 import (
 	"fmt"
 	api "github.com/fsouza/go-dockerclient"
-	"github.com/pkg/errors"
-	"io"
-	"os"
 )
 
 type Docker struct {
@@ -20,88 +17,6 @@ func NewDocker(client *api.Client, id string) *Docker {
 	}
 }
 
-// Do not allow to close reader (i.e. /dev/stdin which docker client tries to close after command execution)
-type noClosableReader struct {
-	io.Reader
-}
-
-func (w *noClosableReader) Read(p []byte) (n int, err error) {
-	return w.Reader.Read(p)
-}
-
-const (
-	STDIN  = 0
-	STDOUT = 1
-	STDERR = 2
-)
-
-var wrongFrameFormat = errors.New("Wrong frame format")
-
-// A frame has a Header and a Payload
-// Header: [8]byte{STREAM_TYPE, 0, 0, 0, SIZE1, SIZE2, SIZE3, SIZE4}
-// STREAM_TYPE can be:
-//    0: stdin (is written on stdout)
-//    1: stdout
-//    2: stderr
-// SIZE1, SIZE2, SIZE3, SIZE4 are the four bytes of the uint32 size encoded as big endian.
-// But we don't use size, because we don't need to find the end of frame.
-type frameWriter struct {
-	stdout io.Writer
-	stderr io.Writer
-	stdin  io.Writer
-}
-
-func (w *frameWriter) Write(p []byte) (n int, err error) {
-	// drop initial empty frames
-	if len(p) == 0 {
-		return 0, nil
-	}
-
-	if len(p) > 8 {
-		var targetWriter io.Writer
-		switch p[0] {
-		case STDIN:
-			targetWriter = w.stdin
-			break
-		case STDOUT:
-			targetWriter = w.stdout
-			break
-		case STDERR:
-			targetWriter = w.stderr
-			break
-		default:
-			return 0, wrongFrameFormat
-		}
-
-		n, err := targetWriter.Write(p[8:])
-		return n + 8, err
-	}
-
-	return 0, wrongFrameFormat
-}
-
-func (dc *Docker) Exec(cmd []string) error {
-	execCmd, err := dc.client.CreateExec(api.CreateExecOptions{
-		AttachStdin:  true,
-		AttachStdout: true,
-		AttachStderr: true,
-		Cmd:          cmd,
-		Container:    dc.id,
-		Tty:          true,
-	})
-
-	if err != nil {
-		return err
-	}
-
-	return dc.client.StartExec(execCmd.ID, api.StartExecOptions{
-		InputStream:  &noClosableReader{os.Stdin},
-		OutputStream: &frameWriter{os.Stdout, os.Stderr, os.Stdin},
-		ErrorStream:  os.Stderr,
-		RawTerminal:  true,
-	})
-}
-
 func (dc *Docker) Start() error {
 	c, err := dc.client.InspectContainer(dc.id)
 	if err != nil {

connector/manager/kubernetes.go

@@ -0,0 +1,64 @@
+package manager
+
+import (
+	"k8s.io/client-go/kubernetes"
+)
+
+type Kubernetes struct {
+	id     string
+	client *kubernetes.Clientset
+}
+
+func NewKubernetes(client *kubernetes.Clientset, id string) *Kubernetes {
+	return &Kubernetes{
+		id:     id,
+		client: client,
+	}
+}
+
+func (dc *Kubernetes) Start() error {
+	//c, err := dc.client.InspectContainer(dc.id)
+	//if err != nil {
+	//	return fmt.Errorf("cannot inspect container: %v", err)
+	//}
+
+	//if err := dc.client.StartContainer(c.ID, c.HostConfig); err != nil {
+	//	return fmt.Errorf("cannot start container: %v", err)
+	//}
+	return nil
+}
+
+func (dc *Kubernetes) Stop() error {
+	//if err := dc.client.StopContainer(dc.id, 3); err != nil {
+	//	return fmt.Errorf("cannot stop container: %v", err)
+	//}
+	return nil
+}
+
+func (dc *Kubernetes) Remove() error {
+	//if err := dc.client.RemoveContainer(api.RemoveContainerOptions{ID: dc.id}); err != nil {
+	//	return fmt.Errorf("cannot remove container: %v", err)
+	//}
+	return nil
+}
+
+func (dc *Kubernetes) Pause() error {
+	//if err := dc.client.PauseContainer(dc.id); err != nil {
+	//	return fmt.Errorf("cannot pause container: %v", err)
+	//}
+	return nil
+}
+
+func (dc *Kubernetes) Unpause() error {
+	//if err := dc.client.UnpauseContainer(dc.id); err != nil {
+	//	return fmt.Errorf("cannot unpause container: %v", err)
+	//}
+	return nil
+}
+
+func (dc *Kubernetes) Restart() error {
+	//if err := dc.client.RestartContainer(dc.id, 3); err != nil {
+	//	return fmt.Errorf("cannot restart container: %v", err)
+	//}
+	return nil
+}

connector/manager/main.go

@@ -1,9 +1,5 @@
 package manager
 
-import "errors"
-
-var ActionNotImplErr = errors.New("action not implemented")
-
 type Manager interface {
 	Start() error
 	Stop() error
@@ -11,5 +7,4 @@ type Manager interface {
 	Pause() error
 	Unpause() error
 	Restart() error
-	Exec(cmd []string) error
 }

connector/manager/mock.go

@@ -7,29 +7,25 @@ func NewMock() *Mock {
 }
 
 func (m *Mock) Start() error {
-	return ActionNotImplErr
+	return nil
 }
 
 func (m *Mock) Stop() error {
-	return ActionNotImplErr
+	return nil
 }
 
 func (m *Mock) Remove() error {
-	return ActionNotImplErr
+	return nil
 }
 
 func (m *Mock) Pause() error {
-	return ActionNotImplErr
+	return nil
 }
 
 func (m *Mock) Unpause() error {
-	return ActionNotImplErr
+	return nil
 }
 
 func (m *Mock) Restart() error {
-	return ActionNotImplErr
+	return nil
-}
-
-func (m *Mock) Exec(cmd []string) error {
-	return ActionNotImplErr
 }

connector/manager/runc.go

@@ -7,29 +7,25 @@ func NewRunc() *Runc {
 }
 
 func (rc *Runc) Start() error {
-	return ActionNotImplErr
+	return nil
 }
 
 func (rc *Runc) Stop() error {
-	return ActionNotImplErr
+	return nil
 }
 
 func (rc *Runc) Remove() error {
-	return ActionNotImplErr
+	return nil
 }
 
 func (rc *Runc) Pause() error {
-	return ActionNotImplErr
+	return nil
 }
 
 func (rc *Runc) Unpause() error {
-	return ActionNotImplErr
+	return nil
 }
 
 func (rc *Runc) Restart() error {
-	return ActionNotImplErr
+	return nil
-}
-
-func (rc *Runc) Exec(cmd []string) error {
-	return ActionNotImplErr
 }

connector/mock.go

@@ -20,11 +20,11 @@ type Mock struct {
 	containers container.Containers
 }
 
-func NewMock() (Connector, error) {
+func NewMock() Connector {
 	cs := &Mock{}
 	go cs.Init()
 	go cs.Loop()
-	return cs, nil
+	return cs
 }
 
 // Create Mock containers
@@ -32,46 +32,21 @@ func (cs *Mock) Init() {
 	rand.Seed(int64(time.Now().Nanosecond()))
 
 	for i := 0; i < 4; i++ {
-		cs.makeContainer(3, true)
+		cs.makeContainer(3)
 	}
 
 	for i := 0; i < 16; i++ {
-		cs.makeContainer(1, false)
+		cs.makeContainer(1)
 	}
 
 }
 
-func (cs *Mock) Wait() struct{} {
+func (cs *Mock) makeContainer(aggression int64) {
-	ch := make(chan struct{})
-	go func() {
-		time.Sleep(30 * time.Second)
-		close(ch)
-	}()
-	return <-ch
-}
-
-var healthStates = []string{"starting", "healthy", "unhealthy"}
-
-func (cs *Mock) makeContainer(aggression int64, health bool) {
 	collector := collector.NewMock(aggression)
 	manager := manager.NewMock()
 	c := container.New(makeID(), collector, manager)
 	c.SetMeta("name", makeName())
 	c.SetState(makeState())
-	if health {
-		var i int
-		c.SetMeta("health", healthStates[i])
-		go func() {
-			for {
-				i++
-				if i >= len(healthStates) {
-					i = 0
-				}
-				c.SetMeta("health", healthStates[i])
-				time.Sleep(12 * time.Second)
-			}
-		}()
-	}
 	cs.containers = append(cs.containers, c)
 }
 
@@ -98,7 +73,7 @@ func (cs *Mock) Get(id string) (*container.Container, bool) {
 	return nil, false
 }
 
-// All returns array of all containers, sorted by field
+// Return array of all containers, sorted by field
 func (cs *Mock) All() container.Containers {
 	cs.containers.Sort()
 	cs.containers.Filter()

connector/runc.go

@@ -54,44 +54,35 @@ type Runc struct {
 	factory       libcontainer.Factory
 	containers    map[string]*container.Container
 	libContainers map[string]libcontainer.Container
-	closed        chan struct{}
 	needsRefresh  chan string // container IDs requiring refresh
 	lock          sync.RWMutex
 }
 
-func NewRunc() (Connector, error) {
+func NewRunc() Connector {
 	opts, err := NewRuncOpts()
-	if err != nil {
+	runcFailOnErr(err)
-		return nil, err
-	}
 
 	factory, err := getFactory(opts)
-	if err != nil {
+	runcFailOnErr(err)
-		return nil, err
-	}
 
 	cm := &Runc{
 		opts:          opts,
 		factory:       factory,
 		containers:    make(map[string]*container.Container),
 		libContainers: make(map[string]libcontainer.Container),
-		closed:        make(chan struct{}),
+		needsRefresh:  make(chan string, 60),
 		lock:          sync.RWMutex{},
 	}
 
 	go func() {
 		for {
-			select {
+			cm.refreshAll()
-			case <-cm.closed:
+			time.Sleep(5 * time.Second)
-				return
-			case <-time.After(5 * time.Second):
-				cm.refreshAll()
-			}
 		}
 	}()
 	go cm.Loop()
 
-	return cm, nil
+	return cm
 }
 
 func (cm *Runc) GetLibc(id string) libcontainer.Container {
@@ -150,11 +141,7 @@ func (cm *Runc) refresh(id string) {
 // Read runc root, creating any new containers
 func (cm *Runc) refreshAll() {
 	list, err := ioutil.ReadDir(cm.opts.root)
-	if err != nil {
+	runcFailOnErr(err)
-		log.Errorf("%s (%T)", err.Error(), err)
-		close(cm.closed)
-		return
-	}
 
 	for _, i := range list {
 		if i.IsDir() {
@@ -181,7 +168,7 @@ func (cm *Runc) Loop() {
 	}
 }
 
-// MustGet gets a single ctop container in the map matching libc container, creating one anew if not existing
+// Get a single ctop container in the map matching libc container, creating one anew if not existing
 func (cm *Runc) MustGet(id string) *container.Container {
 	c, ok := cm.Get(id)
 	if !ok {
@@ -212,6 +199,14 @@ func (cm *Runc) MustGet(id string) *container.Container {
 	return c
 }
 
+// Get a single container, by ID
+func (cm *Runc) Get(id string) (*container.Container, bool) {
+	cm.lock.Lock()
+	defer cm.lock.Unlock()
+	c, ok := cm.containers[id]
+	return c, ok
+}
+
 // Remove containers by ID
 func (cm *Runc) delByID(id string) {
 	cm.lock.Lock()
@@ -221,18 +216,7 @@ func (cm *Runc) delByID(id string) {
 	log.Infof("removed dead container: %s", id)
 }
 
-// Runc implements Connector
+// Return array of all containers, sorted by field
-func (cm *Runc) Wait() struct{} { return <-cm.closed }
-
-// Runc implements Connector
-func (cm *Runc) Get(id string) (*container.Container, bool) {
-	cm.lock.Lock()
-	defer cm.lock.Unlock()
-	c, ok := cm.containers[id]
-	return c, ok
-}
-
-// Runc implements Connector
 func (cm *Runc) All() (containers container.Containers) {
 	cm.lock.Lock()
 	for _, c := range cm.containers {
@@ -247,7 +231,7 @@ func (cm *Runc) All() (containers container.Containers) {
 func getFactory(opts RuncOpts) (libcontainer.Factory, error) {
 	cgroupManager := libcontainer.Cgroupfs
 	if opts.systemdCgroups {
-		if systemd.IsRunningSystemd() {
+		if systemd.UseSystemd() {
 			cgroupManager = libcontainer.SystemdCgroups
 		} else {
 			return nil, fmt.Errorf("systemd cgroup enabled, but systemd support for managing cgroups is not available")
@@ -255,3 +239,9 @@ func getFactory(opts RuncOpts) (libcontainer.Factory, error) {
 	}
 	return libcontainer.New(opts.root, cgroupManager)
 }
+
+func runcFailOnErr(err error) {
+	if err != nil {
+		panic(fmt.Errorf("fatal runc error: %s", err))
+	}
+}

container/main.go

@@ -21,8 +21,8 @@ const (
 type Container struct {
 	models.Metrics
 	Id        string
-	Meta      models.Meta
+	Meta      map[string]string
-	Widgets   *compact.CompactRow
+	Widgets   *compact.Compact
 	Display   bool // display this container in compact view
 	updater   cwidgets.WidgetUpdater
 	collector collector.Collector
@@ -30,11 +30,11 @@ type Container struct {
 }
 
 func New(id string, collector collector.Collector, manager manager.Manager) *Container {
-	widgets := compact.NewCompactRow()
+	widgets := compact.NewCompact(id)
 	return &Container{
 		Metrics:   models.NewMetrics(),
 		Id:        id,
-		Meta:      models.NewMeta("id", id[:12]),
+		Meta:      make(map[string]string),
 		Widgets:   widgets,
 		updater:   widgets,
 		collector: collector,
@@ -42,24 +42,23 @@ func New(id string, collector collector.Collector, manager manager.Manager) *Con
 	}
 }
 
-func (c *Container) RecreateWidgets() {
-	c.SetUpdater(cwidgets.NullWidgetUpdater{})
-	c.Widgets = compact.NewCompactRow()
-	c.SetUpdater(c.Widgets)
-}
-
 func (c *Container) SetUpdater(u cwidgets.WidgetUpdater) {
 	c.updater = u
-	c.updater.SetMeta(c.Meta)
+	for k, v := range c.Meta {
+		c.updater.SetMeta(k, v)
+	}
 }
 
 func (c *Container) SetMeta(k, v string) {
 	c.Meta[k] = v
-	c.updater.SetMeta(c.Meta)
+	c.updater.SetMeta(k, v)
 }
 
 func (c *Container) GetMeta(k string) string {
-	return c.Meta.Get(k)
+	if v, ok := c.Meta[k]; ok {
+		return v
+	}
+	return ""
 }
 
 func (c *Container) SetState(s string) {
@@ -75,7 +74,7 @@ func (c *Container) SetState(s string) {
 	}
 }
 
-// Logs returns container log collector
+// Return container log collector
 func (c *Container) Logs() collector.LogCollector {
 	return c.collector.Logs()
 }
@@ -154,7 +153,3 @@ func (c *Container) Restart() {
 		}
 	}
 }
-
-func (c *Container) Exec(cmd []string) error {
-	return c.manager.Exec(cmd)
-}

cursor.go

@@ -11,7 +11,7 @@ import (
 type GridCursor struct {
 	selectedID  string // id of currently selected container
 	filtered    container.Containers
-	cSuper      *connector.ConnectorSuper
+	cSource     connector.Connector
 	isScrolling bool // toggled when actively scrolling
 }
 
@@ -25,20 +25,14 @@ func (gc *GridCursor) Selected() *container.Container {
 	return nil
 }
 
-// Refresh containers from source, returning whether the quantity of
+// Refresh containers from source
-// containers has changed and any error
+func (gc *GridCursor) RefreshContainers() (lenChanged bool) {
-func (gc *GridCursor) RefreshContainers() (bool, error) {
 	oldLen := gc.Len()
+
+	// Containers filtered by display bool
 	gc.filtered = container.Containers{}
-
-	cSource, err := gc.cSuper.Get()
-	if err != nil {
-		return true, err
-	}
-
-	// filter Containers by display bool
 	var cursorVisible bool
-	for _, c := range cSource.All() {
+	for _, c := range gc.cSource.All() {
 		if c.Display {
 			if c.Id == gc.selectedID {
 				cursorVisible = true
@@ -47,21 +41,22 @@ func (gc *GridCursor) RefreshContainers() (bool, error) {
 		}
 	}
 
-	if !cursorVisible || gc.selectedID == "" {
+	if oldLen != gc.Len() {
-		gc.Reset()
+		lenChanged = true
 	}
 
-	return oldLen != gc.Len(), nil
+	if !cursorVisible {
+		gc.Reset()
+	}
+	if gc.selectedID == "" {
+		gc.Reset()
+	}
+	return lenChanged
 }
 
 // Set an initial cursor position, if possible
 func (gc *GridCursor) Reset() {
-	cSource, err := gc.cSuper.Get()
+	for _, c := range gc.cSource.All() {
-	if err != nil {
-		return
-	}
-
-	for _, c := range cSource.All() {
 		c.Widgets.UnHighlight()
 	}
 	if gc.Len() > 0 {
@@ -70,7 +65,7 @@ func (gc *GridCursor) Reset() {
 	}
 }
 
-// Idx returns current cursor index
+// Return current cursor index
 func (gc *GridCursor) Idx() int {
 	for n, c := range gc.filtered {
 		if c.Id == gc.selectedID {

cwidgets/compact/column.go

@@ -1,54 +0,0 @@
-package compact
-
-import (
-	"github.com/bcicen/ctop/config"
-	"github.com/bcicen/ctop/models"
-
-	ui "github.com/gizak/termui"
-)
-
-var (
-	allCols = map[string]NewCompactColFn{
-		"status":  NewStatus,
-		"name":    NewNameCol,
-		"id":      NewCIDCol,
-		"image":   NewImageCol,
-		"ports":   NewPortsCol,
-		"IPs":     NewIpsCol,
-		"created": NewCreatedCol,
-		"cpu":     NewCPUCol,
-		"cpus":    NewCpuScaledCol,
-		"mem":     NewMemCol,
-		"net":     NewNetCol,
-		"io":      NewIOCol,
-		"pids":    NewPIDCol,
-	}
-)
-
-type NewCompactColFn func() CompactCol
-
-func newRowWidgets() []CompactCol {
-	enabled := config.EnabledColumns()
-	cols := make([]CompactCol, len(enabled))
-
-	for n, name := range enabled {
-		wFn, ok := allCols[name]
-		if !ok {
-			panic("no such widget name: %s" + name)
-		}
-		cols[n] = wFn()
-	}
-
-	return cols
-}
-
-type CompactCol interface {
-	ui.GridBufferer
-	Reset()
-	Header() string  // header text to display for column
-	FixedWidth() int // fixed width size. if == 0, width is automatically calculated
-	Highlight()
-	UnHighlight()
-	SetMeta(models.Meta)
-	SetMetrics(models.Metrics)
-}

cwidgets/compact/gauge.go

@@ -1,68 +1,21 @@
 package compact
 
 import (
-	"fmt"
-
-	"github.com/bcicen/ctop/cwidgets"
-	"github.com/bcicen/ctop/models"
-
 	ui "github.com/gizak/termui"
 )
 
-type CPUCol struct {
-	*GaugeCol
-	scaleCpu bool
-}
-
-func NewCPUCol() CompactCol {
-	return &CPUCol{NewGaugeCol("CPU"), false}
-}
-
-func NewCpuScaledCol() CompactCol {
-	return &CPUCol{NewGaugeCol("CPUS"), true}
-}
-
-func (w *CPUCol) SetMetrics(m models.Metrics) {
-	val := m.CPUUtil
-	w.BarColor = colorScale(val)
-	if !w.scaleCpu {
-		val = val * int(m.NCpus)
-	}
-	w.Label = fmt.Sprintf("%d%%", val)
-
-	if val > 100 {
-		val = 100
-	}
-	w.Percent = val
-}
-
-type MemCol struct {
-	*GaugeCol
-}
-
-func NewMemCol() CompactCol {
-	return &MemCol{NewGaugeCol("MEM")}
-}
-
-func (w *MemCol) SetMetrics(m models.Metrics) {
-	w.BarColor = ui.ThemeAttr("gauge.bar.bg")
-	w.Label = fmt.Sprintf("%s / %s", cwidgets.ByteFormat64Short(m.MemUsage), cwidgets.ByteFormat64Short(m.MemLimit))
-	w.Percent = m.MemPercent
-}
-
 type GaugeCol struct {
 	*ui.Gauge
-	header string
-	fWidth int
 }
 
-func NewGaugeCol(header string) *GaugeCol {
+func NewGaugeCol() *GaugeCol {
-	g := &GaugeCol{ui.NewGauge(), header, 0}
+	g := ui.NewGauge()
 	g.Height = 1
 	g.Border = false
+	g.Percent = 0
 	g.PaddingBottom = 0
-	g.Reset()
+	g.Label = "-"
-	return g
+	return &GaugeCol{g}
 }
 
 func (w *GaugeCol) Reset() {
@@ -70,30 +23,11 @@ func (w *GaugeCol) Reset() {
 	w.Percent = 0
 }
 
-func (w *GaugeCol) Buffer() ui.Buffer {
-	// if bar would not otherwise be visible, set a minimum
-	// percentage value and low-contrast color for structure
-	if w.Percent < 5 {
-		w.Percent = 5
-		w.BarColor = ui.ColorBlack
-	}
-
-	return w.Gauge.Buffer()
-}
-
-// GaugeCol implements CompactCol
-func (w *GaugeCol) SetMeta(models.Meta)       {}
-func (w *GaugeCol) SetMetrics(models.Metrics) {}
-func (w *GaugeCol) Header() string            { return w.header }
-func (w *GaugeCol) FixedWidth() int           { return w.fWidth }
-
-// GaugeCol implements CompactCol
 func (w *GaugeCol) Highlight() {
 	w.Bg = ui.ThemeAttr("par.text.fg")
 	w.PercentColor = ui.ThemeAttr("par.text.hi")
 }
 
-// GaugeCol implements CompactCol
 func (w *GaugeCol) UnHighlight() {
 	w.Bg = ui.ThemeAttr("par.text.bg")
 	w.PercentColor = ui.ThemeAttr("par.text.bg")

cwidgets/compact/grid.go

@@ -4,11 +4,11 @@ import (
 	ui "github.com/gizak/termui"
 )
 
+var header *CompactHeader
+
 type CompactGrid struct {
 	ui.GridBufferer
-	header *CompactHeader
+	Rows   []ui.GridBufferer
-	cols   []CompactCol // reference columns
-	Rows   []RowBufferer
 	X, Y   int
 	Width  int
 	Height int
@@ -16,9 +16,8 @@ type CompactGrid struct {
 }
 
 func NewCompactGrid() *CompactGrid {
-	cg := &CompactGrid{header: NewCompactHeader()}
+	header = NewCompactHeader() // init column header
-	cg.rebuildHeader()
+	return &CompactGrid{}
-	return cg
 }
 
 func (cg *CompactGrid) Align() {
@@ -29,51 +28,22 @@ func (cg *CompactGrid) Align() {
 	}
 
 	// update row ypos, width recursively
-	colWidths := cg.calcWidths()
 	for _, r := range cg.pageRows() {
 		r.SetY(y)
 		y += r.GetHeight()
-		r.SetWidths(cg.Width, colWidths)
+		r.SetWidth(cg.Width)
 	}
 }
 
-func (cg *CompactGrid) Clear() {
+func (cg *CompactGrid) Clear()         { cg.Rows = []ui.GridBufferer{} }
-	cg.Rows = []RowBufferer{}
+func (cg *CompactGrid) GetHeight() int { return len(cg.Rows) + header.Height }
-	cg.rebuildHeader()
-}
-
-func (cg *CompactGrid) GetHeight() int { return len(cg.Rows) + cg.header.Height }
 func (cg *CompactGrid) SetX(x int)     { cg.X = x }
 func (cg *CompactGrid) SetY(y int)     { cg.Y = y }
 func (cg *CompactGrid) SetWidth(w int) { cg.Width = w }
-func (cg *CompactGrid) MaxRows() int   { return ui.TermHeight() - cg.header.Height - cg.Y }
+func (cg *CompactGrid) MaxRows() int   { return ui.TermHeight() - header.Height - cg.Y }
 
-// calculate and return per-column width
+func (cg *CompactGrid) pageRows() (rows []ui.GridBufferer) {
-func (cg *CompactGrid) calcWidths() []int {
+	rows = append(rows, header)
-	var autoCols int
-	width := cg.Width
-	colWidths := make([]int, len(cg.cols))
-
-	for n, w := range cg.cols {
-		colWidths[n] = w.FixedWidth()
-		width -= w.FixedWidth()
-		if w.FixedWidth() == 0 {
-			autoCols++
-		}
-	}
-
-	spacing := colSpacing * len(cg.cols)
-	autoWidth := (width - spacing) / autoCols
-	for n, val := range colWidths {
-		if val == 0 {
-			colWidths[n] = autoWidth
-		}
-	}
-	return colWidths
-}
-
-func (cg *CompactGrid) pageRows() (rows []RowBufferer) {
-	rows = append(rows, cg.header)
 	rows = append(rows, cg.Rows[cg.Offset:]...)
 	return rows
 }
@@ -86,14 +56,6 @@ func (cg *CompactGrid) Buffer() ui.Buffer {
 	return buf
 }
 
-func (cg *CompactGrid) AddRows(rows ...RowBufferer) {
+func (cg *CompactGrid) AddRows(rows ...ui.GridBufferer) {
 	cg.Rows = append(cg.Rows, rows...)
 }
-
-func (cg *CompactGrid) rebuildHeader() {
-	cg.cols = newRowWidgets()
-	cg.header.clearFieldPars()
-	for _, col := range cg.cols {
-		cg.header.addFieldPar(col.Header())
-	}
-}

cwidgets/compact/header.go

@@ -8,59 +8,63 @@ type CompactHeader struct {
 	X, Y   int
 	Width  int
 	Height int
-	cols   []CompactCol
-	widths []int
 	pars   []*ui.Par
 }
 
 func NewCompactHeader() *CompactHeader {
-	return &CompactHeader{
+	fields := []string{"", "NAME", "CID", "CPU", "MEM", "NET RX/TX", "IO R/W", "PIDS"}
-		X:      rowPadding,
+	ch := &CompactHeader{}
-		Height: 2,
+	ch.Height = 2
+	for _, f := range fields {
+		ch.addFieldPar(f)
 	}
+	return ch
 }
 
-func (row *CompactHeader) GetHeight() int {
+func (ch *CompactHeader) GetHeight() int {
-	return row.Height
+	return ch.Height
 }
 
-func (row *CompactHeader) SetWidths(totalWidth int, widths []int) {
+func (ch *CompactHeader) SetWidth(w int) {
-	x := row.X
+	x := ch.X
-
+	autoWidth := calcWidth(w)
-	for n, w := range row.pars {
+	for n, col := range ch.pars {
-		w.SetX(x)
+		// set column to static width
-		w.SetWidth(widths[n])
+		if colWidths[n] != 0 {
-		x += widths[n] + colSpacing
+			col.SetX(x)
+			col.SetWidth(colWidths[n])
+			x += colWidths[n]
+			continue
+		}
+		col.SetX(x)
+		col.SetWidth(autoWidth)
+		x += autoWidth + colSpacing
 	}
-	row.Width = totalWidth
+	ch.Width = w
 }
 
-func (row *CompactHeader) SetX(x int) {
+func (ch *CompactHeader) SetX(x int) {
-	row.X = x
+	ch.X = x
 }
 
-func (row *CompactHeader) SetY(y int) {
+func (ch *CompactHeader) SetY(y int) {
-	for _, p := range row.pars {
+	for _, p := range ch.pars {
 		p.SetY(y)
 	}
-	row.Y = y
+	ch.Y = y
 }
 
-func (row *CompactHeader) Buffer() ui.Buffer {
+func (ch *CompactHeader) Buffer() ui.Buffer {
 	buf := ui.NewBuffer()
-	for _, p := range row.pars {
+	for _, p := range ch.pars {
 		buf.Merge(p.Buffer())
 	}
 	return buf
 }
 
-func (row *CompactHeader) clearFieldPars() {
+func (ch *CompactHeader) addFieldPar(s string) {
-	row.pars = []*ui.Par{}
-}
-
-func (row *CompactHeader) addFieldPar(s string) {
 	p := ui.NewPar(s)
-	p.Height = row.Height
+	p.Height = ch.Height
 	p.Border = false
-	row.pars = append(row.pars, p)
+	ch.pars = append(ch.pars, p)
 }

cwidgets/compact/main.go

@@ -0,0 +1,195 @@
+package compact
+
+import (
+	"github.com/bcicen/ctop/config"
+	"github.com/bcicen/ctop/logging"
+	"github.com/bcicen/ctop/models"
+	ui "github.com/gizak/termui"
+)
+
+var log = logging.Init()
+
+type Compact struct {
+	Status *Status
+	Name   *TextCol
+	Cid    *TextCol
+	Cpu    *GaugeCol
+	Mem    *GaugeCol
+	Net    *TextCol
+	IO     *TextCol
+	Pids   *TextCol
+	Bg     *RowBg
+	X, Y   int
+	Width  int
+	Height int
+}
+
+func NewCompact(id string) *Compact {
+	// truncate container id
+	if len(id) > 12 {
+		id = id[:12]
+	}
+	row := &Compact{
+		Status: NewStatus(),
+		Name:   NewTextCol("-"),
+		Cid:    NewTextCol(id),
+		Cpu:    NewGaugeCol(),
+		Mem:    NewGaugeCol(),
+		Net:    NewTextCol("-"),
+		IO:     NewTextCol("-"),
+		Pids:   NewTextCol("-"),
+		Bg:     NewRowBg(),
+		X:      1,
+		Height: 1,
+	}
+	return row
+}
+
+//func (row *Compact) ToggleExpand() {
+//if row.Height == 1 {
+//row.Height = 4
+//} else {
+//row.Height = 1
+//}
+//}
+
+func (row *Compact) SetMeta(k, v string) {
+	switch k {
+	case "name":
+		row.Name.Set(v)
+	case "state":
+		row.Status.Set(v)
+	case "health":
+		row.Status.SetHealth(v)
+	}
+}
+
+func (row *Compact) SetMetrics(m models.Metrics) {
+	row.SetCPU(m.CPUUtil)
+	row.SetNet(m.NetRx, m.NetTx)
+	row.SetMem(m.MemUsage, m.MemLimit, m.MemPercent)
+	row.SetIO(m.IOBytesRead, m.IOBytesWrite)
+	row.SetPids(m.Pids)
+}
+
+// Set gauges, counters to default unread values
+func (row *Compact) Reset() {
+	row.Cpu.Reset()
+	row.Mem.Reset()
+	row.Net.Reset()
+	row.IO.Reset()
+	row.Pids.Reset()
+}
+
+func (row *Compact) GetHeight() int {
+	return row.Height
+}
+
+func (row *Compact) SetX(x int) {
+	row.X = x
+}
+
+func (row *Compact) SetY(y int) {
+	if y == row.Y {
+		return
+	}
+
+	row.Bg.Y = y
+	for _, col := range row.all() {
+		col.SetY(y)
+	}
+	row.Y = y
+}
+
+func (row *Compact) SetWidth(width int) {
+	if width == row.Width {
+		return
+	}
+	x := row.X
+
+	row.Bg.SetX(x + colWidths[0] + 1)
+	row.Bg.SetWidth(width)
+
+	autoWidth := calcWidth(width)
+	for n, col := range row.all() {
+		if colWidths[n] != 0 {
+			col.SetX(x)
+			col.SetWidth(colWidths[n])
+			x += colWidths[n]
+			continue
+		}
+		col.SetX(x)
+		col.SetWidth(autoWidth)
+		x += autoWidth + colSpacing
+	}
+	row.Width = width
+}
+
+func (row *Compact) Buffer() ui.Buffer {
+	buf := ui.NewBuffer()
+
+	buf.Merge(row.Bg.Buffer())
+	buf.Merge(row.Status.Buffer())
+	buf.Merge(row.Name.Buffer())
+	buf.Merge(row.Cid.Buffer())
+	buf.Merge(row.Cpu.Buffer())
+	buf.Merge(row.Mem.Buffer())
+	buf.Merge(row.Net.Buffer())
+	buf.Merge(row.IO.Buffer())
+	buf.Merge(row.Pids.Buffer())
+	return buf
+}
+
+func (row *Compact) all() []ui.GridBufferer {
+	return []ui.GridBufferer{
+		row.Status,
+		row.Name,
+		row.Cid,
+		row.Cpu,
+		row.Mem,
+		row.Net,
+		row.IO,
+		row.Pids,
+	}
+}
+
+func (row *Compact) Highlight() {
+	row.Name.Highlight()
+	if config.GetSwitchVal("fullRowCursor") {
+		row.Bg.Highlight()
+		row.Cid.Highlight()
+		row.Cpu.Highlight()
+		row.Mem.Highlight()
+		row.Net.Highlight()
+		row.IO.Highlight()
+		row.Pids.Highlight()
+	}
+}
+
+func (row *Compact) UnHighlight() {
+	row.Name.UnHighlight()
+	if config.GetSwitchVal("fullRowCursor") {
+		row.Bg.UnHighlight()
+		row.Cid.UnHighlight()
+		row.Cpu.UnHighlight()
+		row.Mem.UnHighlight()
+		row.Net.UnHighlight()
+		row.IO.UnHighlight()
+		row.Pids.UnHighlight()
+	}
+}
+
+type RowBg struct {
+	*ui.Par
+}
+
+func NewRowBg() *RowBg {
+	bg := ui.NewPar("")
+	bg.Height = 1
+	bg.Border = false
+	bg.Bg = ui.ThemeAttr("par.text.bg")
+	return &RowBg{bg}
+}
+
+func (w *RowBg) Highlight()   { w.Bg = ui.ThemeAttr("par.text.fg") }
+func (w *RowBg) UnHighlight() { w.Bg = ui.ThemeAttr("par.text.bg") }

cwidgets/compact/row.go

@@ -1,129 +0,0 @@
-package compact
-
-import (
-	"github.com/bcicen/ctop/config"
-	"github.com/bcicen/ctop/logging"
-	"github.com/bcicen/ctop/models"
-
-	ui "github.com/gizak/termui"
-)
-
-const rowPadding = 1
-
-var log = logging.Init()
-
-type RowBufferer interface {
-	SetY(int)
-	SetWidths(int, []int)
-	GetHeight() int
-	Buffer() ui.Buffer
-}
-
-type CompactRow struct {
-	Bg     *RowBg
-	Cols   []CompactCol
-	X, Y   int
-	Height int
-	widths []int // column widths
-}
-
-func NewCompactRow() *CompactRow {
-	row := &CompactRow{
-		Bg:     NewRowBg(),
-		Cols:   newRowWidgets(),
-		X:      rowPadding,
-		Height: 1,
-	}
-
-	return row
-}
-
-func (row *CompactRow) SetMeta(m models.Meta) {
-	for _, w := range row.Cols {
-		w.SetMeta(m)
-	}
-}
-
-func (row *CompactRow) SetMetrics(m models.Metrics) {
-	for _, w := range row.Cols {
-		w.SetMetrics(m)
-	}
-}
-
-// Set gauges, counters, etc. to default unread values
-func (row *CompactRow) Reset() {
-	for _, w := range row.Cols {
-		w.Reset()
-	}
-}
-
-func (row *CompactRow) GetHeight() int { return row.Height }
-
-//func (row *CompactRow) SetX(x int)     { row.X = x }
-
-func (row *CompactRow) SetY(y int) {
-	if y == row.Y {
-		return
-	}
-
-	row.Bg.Y = y
-	for _, w := range row.Cols {
-		w.SetY(y)
-	}
-	row.Y = y
-}
-
-func (row *CompactRow) SetWidths(totalWidth int, widths []int) {
-	x := row.X
-
-	row.Bg.SetX(x)
-	row.Bg.SetWidth(totalWidth)
-
-	for n, w := range row.Cols {
-		w.SetX(x)
-		w.SetWidth(widths[n])
-		x += widths[n] + colSpacing
-	}
-}
-
-func (row *CompactRow) Buffer() ui.Buffer {
-	buf := ui.NewBuffer()
-	buf.Merge(row.Bg.Buffer())
-	for _, w := range row.Cols {
-		buf.Merge(w.Buffer())
-	}
-	return buf
-}
-
-func (row *CompactRow) Highlight() {
-	row.Cols[1].Highlight()
-	if config.GetSwitchVal("fullRowCursor") {
-		for _, w := range row.Cols {
-			w.Highlight()
-		}
-	}
-}
-
-func (row *CompactRow) UnHighlight() {
-	row.Cols[1].UnHighlight()
-	if config.GetSwitchVal("fullRowCursor") {
-		for _, w := range row.Cols {
-			w.UnHighlight()
-		}
-	}
-}
-
-type RowBg struct {
-	*ui.Par
-}
-
-func NewRowBg() *RowBg {
-	bg := ui.NewPar("")
-	bg.Height = 1
-	bg.Border = false
-	bg.Bg = ui.ThemeAttr("par.text.bg")
-	return &RowBg{bg}
-}
-
-func (w *RowBg) Highlight()   { w.Bg = ui.ThemeAttr("par.text.fg") }
-func (w *RowBg) UnHighlight() { w.Bg = ui.ThemeAttr("par.text.bg") }

cwidgets/compact/setters.go

@@ -0,0 +1,48 @@
+package compact
+
+import (
+	"fmt"
+	"strconv"
+
+	"github.com/bcicen/ctop/cwidgets"
+	ui "github.com/gizak/termui"
+)
+
+func (row *Compact) SetNet(rx int64, tx int64) {
+	label := fmt.Sprintf("%s / %s", cwidgets.ByteFormat(rx), cwidgets.ByteFormat(tx))
+	row.Net.Set(label)
+}
+
+func (row *Compact) SetIO(read int64, write int64) {
+	label := fmt.Sprintf("%s / %s", cwidgets.ByteFormat(read), cwidgets.ByteFormat(write))
+	row.IO.Set(label)
+}
+
+func (row *Compact) SetPids(val int) {
+	label := strconv.Itoa(val)
+	row.Pids.Set(label)
+}
+
+func (row *Compact) SetCPU(val int) {
+	row.Cpu.BarColor = colorScale(val)
+	row.Cpu.Label = fmt.Sprintf("%s%%", strconv.Itoa(val))
+	if val < 5 {
+		val = 5
+		row.Cpu.BarColor = ui.ThemeAttr("gauge.bar.bg")
+	}
+	if val > 100 {
+		val = 100
+	}
+	row.Cpu.Percent = val
+}
+
+func (row *Compact) SetMem(val int64, limit int64, percent int) {
+	row.Mem.Label = fmt.Sprintf("%s / %s", cwidgets.ByteFormat(val), cwidgets.ByteFormat(limit))
+	if percent < 5 {
+		percent = 5
+		row.Mem.BarColor = ui.ColorBlack
+	} else {
+		row.Mem.BarColor = ui.ThemeAttr("gauge.bar.bg")
+	}
+	row.Mem.Percent = percent
+}

cwidgets/compact/status.go

@@ -1,14 +1,12 @@
 package compact
 
 import (
-	"github.com/bcicen/ctop/models"
-
 	ui "github.com/gizak/termui"
 )
 
 const (
-	mark       = "◉"
+	mark       = string('\u25C9')
-	healthMark = "✚"
+	healthMark = string('\u207A')
 	vBar       = string('\u25AE') + string('\u25AE')
 )
 
@@ -19,46 +17,29 @@ type Status struct {
 	health []ui.Cell
 }
 
-func NewStatus() CompactCol {
+func NewStatus() *Status {
-	s := &Status{
+	s := &Status{Block: ui.NewBlock()}
-		Block:  ui.NewBlock(),
-		health: []ui.Cell{{Ch: ' '}},
-	}
 	s.Height = 1
 	s.Border = false
-	s.setState("")
+	s.Set("")
 	return s
 }
 
 func (s *Status) Buffer() ui.Buffer {
 	buf := s.Block.Buffer()
 	x := 0
-	for _, c := range s.health {
+	for _, c := range s.status {
 		buf.Set(s.InnerX()+x, s.InnerY(), c)
 		x += c.Width()
 	}
-	x += 1
+	for _, c := range s.health {
-	for _, c := range s.status {
 		buf.Set(s.InnerX()+x, s.InnerY(), c)
 		x += c.Width()
 	}
 	return buf
 }
 
-func (s *Status) SetMeta(m models.Meta) {
+func (s *Status) Set(val string) {
-	s.setState(m.Get("state"))
-	s.setHealth(m.Get("health"))
-}
-
-// Status implements CompactCol
-func (s *Status) Reset()                    {}
-func (s *Status) SetMetrics(models.Metrics) {}
-func (s *Status) Highlight()                {}
-func (s *Status) UnHighlight()              {}
-func (s *Status) Header() string            { return "" }
-func (s *Status) FixedWidth() int           { return 3 }
-
-func (s *Status) setState(val string) {
 	// defaults
 	text := mark
 	color := ui.ColorDefault
@@ -72,25 +53,31 @@ func (s *Status) setState(val string) {
 		text = vBar
 	}
 
-	s.status = ui.TextCells(text, color, ui.ColorDefault)
+	var cells []ui.Cell
+	for _, ch := range text {
+		cells = append(cells, ui.Cell{Ch: ch, Fg: color})
+	}
+	s.status = cells
 }
 
-func (s *Status) setHealth(val string) {
+func (s *Status) SetHealth(val string) {
+	if val == "" {
+		return
+	}
 	color := ui.ColorDefault
-	mark := healthMark
 
 	switch val {
-	case "":
+	case "healthy", "Succeeded":
-		return
-	case "healthy":
 		color = ui.ThemeAttr("status.ok")
-	case "unhealthy":
+	case "unhealthy", "Failed", "Unknown":
 		color = ui.ThemeAttr("status.danger")
-	case "starting":
+	case "starting", "Pending", "Running":
 		color = ui.ThemeAttr("status.warn")
-	default:
-		log.Warningf("unknown health state string: \"%v\"", val)
 	}
 
-	s.health = ui.TextCells(mark, color, ui.ColorDefault)
+	var cells []ui.Cell
+	for _, ch := range healthMark {
+		cells = append(cells, ui.Cell{Ch: ch, Fg: color})
+	}
+	s.health = cells
 }

cwidgets/compact/text.go

@@ -1,111 +1,19 @@
 package compact
 
 import (
-	"fmt"
-
-	"github.com/bcicen/ctop/cwidgets"
-	"github.com/bcicen/ctop/models"
-
 	ui "github.com/gizak/termui"
 )
 
-// Column that shows container's meta property i.e. name, id, image tc.
-type MetaCol struct {
-	*TextCol
-	metaName string
-}
-
-func (w *MetaCol) SetMeta(m models.Meta) {
-	w.setText(m.Get(w.metaName))
-}
-
-func NewNameCol() CompactCol {
-	c := &MetaCol{NewTextCol("NAME"), "name"}
-	c.fWidth = 30
-	return c
-}
-
-func NewCIDCol() CompactCol {
-	c := &MetaCol{NewTextCol("CID"), "id"}
-	c.fWidth = 12
-	return c
-}
-
-func NewImageCol() CompactCol {
-	return &MetaCol{NewTextCol("IMAGE"), "image"}
-}
-
-func NewPortsCol() CompactCol {
-	return &MetaCol{NewTextCol("PORTS"), "ports"}
-}
-
-func NewIpsCol() CompactCol {
-	return &MetaCol{NewTextCol("IPs"), "IPs"}
-}
-
-func NewCreatedCol() CompactCol {
-	c := &MetaCol{NewTextCol("CREATED"), "created"}
-	c.fWidth = 19 // Year will be stripped e.g. "Thu Nov 26 07:44:03" without 2020 at end
-	return c
-}
-
-type NetCol struct {
-	*TextCol
-}
-
-func NewNetCol() CompactCol {
-	return &NetCol{NewTextCol("NET RX/TX")}
-}
-
-func (w *NetCol) SetMetrics(m models.Metrics) {
-	label := fmt.Sprintf("%s / %s", cwidgets.ByteFormat64Short(m.NetRx), cwidgets.ByteFormat64Short(m.NetTx))
-	w.setText(label)
-}
-
-type IOCol struct {
-	*TextCol
-}
-
-func NewIOCol() CompactCol {
-	return &IOCol{NewTextCol("IO R/W")}
-}
-
-func (w *IOCol) SetMetrics(m models.Metrics) {
-	label := fmt.Sprintf("%s / %s", cwidgets.ByteFormat64Short(m.IOBytesRead), cwidgets.ByteFormat64Short(m.IOBytesWrite))
-	w.setText(label)
-}
-
-type PIDCol struct {
-	*TextCol
-}
-
-func NewPIDCol() CompactCol {
-	w := &PIDCol{NewTextCol("PIDS")}
-	w.fWidth = 4
-	return w
-}
-
-func (w *PIDCol) SetMetrics(m models.Metrics) {
-	w.setText(fmt.Sprintf("%d", m.Pids))
-}
-
 type TextCol struct {
 	*ui.Par
-	header string
-	fWidth int
 }
 
-func NewTextCol(header string) *TextCol {
+func NewTextCol(s string) *TextCol {
-	p := ui.NewPar("-")
+	p := ui.NewPar(s)
 	p.Border = false
 	p.Height = 1
 	p.Width = 20
-
+	return &TextCol{p}
-	return &TextCol{
-		Par:    p,
-		header: header,
-		fWidth: 0,
-	}
 }
 
 func (w *TextCol) Highlight() {
@@ -120,16 +28,10 @@ func (w *TextCol) UnHighlight() {
 	w.TextBgColor = ui.ThemeAttr("par.text.bg")
 }
 
-// TextCol implements CompactCol
+func (w *TextCol) Reset() {
-func (w *TextCol) Reset()                    { w.setText("-") }
+	w.Text = "-"
-func (w *TextCol) SetMeta(models.Meta)       {}
+}
-func (w *TextCol) SetMetrics(models.Metrics) {}
-func (w *TextCol) Header() string            { return w.header }
-func (w *TextCol) FixedWidth() int           { return w.fWidth }
 
-func (w *TextCol) setText(s string) {
+func (w *TextCol) Set(s string) {
-	if w.fWidth > 0 && len(s) > w.fWidth {
-		s = s[0:w.fWidth]
-	}
 	w.Text = s
 }

cwidgets/compact/util.go

@@ -10,6 +10,31 @@ import (
 
 const colSpacing = 1
 
+// per-column width. 0 == auto width
+var colWidths = []int{
+	3, // status
+	0, // name
+	0, // cid
+	0, // cpu
+	0, // memory
+	0, // net
+	0, // io
+	4, // pids
+}
+
+// Calculate per-column width, given total width
+func calcWidth(width int) int {
+	spacing := colSpacing * len(colWidths)
+	var staticCols int
+	for _, w := range colWidths {
+		width -= w
+		if w == 0 {
+			staticCols++
+		}
+	}
+	return (width - spacing) / staticCols
+}
+
 func centerParText(p *ui.Par) {
 	var text string
 	var padding string

cwidgets/main.go

@@ -8,14 +8,6 @@ import (
 var log = logging.Init()
 
 type WidgetUpdater interface {
-	SetMeta(models.Meta)
+	SetMeta(string, string)
 	SetMetrics(models.Metrics)
 }
-
-type NullWidgetUpdater struct{}
-
-// NullWidgetUpdater implements WidgetUpdater
-func (wu NullWidgetUpdater) SetMeta(models.Meta) {}
-
-// NullWidgetUpdater implements WidgetUpdater
-func (wu NullWidgetUpdater) SetMetrics(models.Metrics) {}

cwidgets/single/env.go

@@ -3,7 +3,6 @@ package single
 import (
 	ui "github.com/gizak/termui"
 	"regexp"
-	"strings"
 )
 
 var envPattern = regexp.MustCompile(`(?P<KEY>[^=]+)=(?P<VALUJE>.*)`)
@@ -24,16 +23,14 @@ func NewEnv() *Env {
 	return i
 }
 
-func (w *Env) Set(allEnvs string) {
+func (w *Env) Set(k, v string) {
-	envs := strings.Split(allEnvs, ";")
+	match := envPattern.FindStringSubmatch(v)
+	key := match[1]
+	value := match[2]
+	w.data[key] = value
+
 	w.Rows = [][]string{}
-	for _, env := range envs {
+	w.Rows = append(w.Rows, mkInfoRows(key, value)...)
-		match := envPattern.FindStringSubmatch(env)
-		key := match[1]
-		value := match[2]
-		w.data[key] = value
-		w.Rows = append(w.Rows, mkInfoRows(key, value)...)
-	}
 
 	w.Height = len(w.Rows) + 2
 }

cwidgets/single/info.go

@@ -13,13 +13,14 @@ type Info struct {
 	data map[string]string
 }
 
-func NewInfo() *Info {
+func NewInfo(id string) *Info {
 	p := ui.NewTable()
 	p.Height = 4
 	p.Width = colWidth[0]
 	p.FgColor = ui.ThemeAttr("par.text.fg")
 	p.Separator = false
 	i := &Info{p, make(map[string]string)}
+	i.Set("id", id)
 	return i
 }
 

cwidgets/single/io.go

@@ -42,10 +42,10 @@ func (w *IO) Update(read int64, write int64) {
 	var rate string
 
 	w.readHist.Append(int(read))
-	rate = strings.ToLower(cwidgets.ByteFormatShort(w.readHist.Val))
+	rate = strings.ToLower(cwidgets.ByteFormatInt(w.readHist.Val))
 	w.Lines[0].Title = fmt.Sprintf("read [%s/s]", rate)
 
 	w.writeHist.Append(int(write))
-	rate = strings.ToLower(cwidgets.ByteFormatShort(w.writeHist.Val))
+	rate = strings.ToLower(cwidgets.ByteFormatInt(w.writeHist.Val))
 	w.Lines[1].Title = fmt.Sprintf("write [%s/s]", rate)
 }

cwidgets/single/main.go

@@ -23,9 +23,12 @@ type Single struct {
 	Width int
 }
 
-func NewSingle() *Single {
+func NewSingle(id string) *Single {
+	if len(id) > 12 {
+		id = id[:12]
+	}
 	return &Single{
-		Info:  NewInfo(),
+		Info:  NewInfo(id),
 		Net:   NewNet(),
 		Cpu:   NewCpu(),
 		Mem:   NewMem(),
@@ -52,13 +55,11 @@ func (e *Single) Down() {
 }
 
 func (e *Single) SetWidth(w int) { e.Width = w }
-func (e *Single) SetMeta(m models.Meta) {
+func (e *Single) SetMeta(k, v string) {
-	for k, v := range m {
+	if k == "[ENV-VAR]" {
-		if k == "[ENV-VAR]" {
+		e.Env.Set(k, v)
-			e.Env.Set(v)
+	} else {
-		} else {
+		e.Info.Set(k, v)
-			e.Info.Set(k, v)
-		}
 	}
 }
 
@@ -69,7 +70,7 @@ func (e *Single) SetMetrics(m models.Metrics) {
 	e.IO.Update(m.IOBytesRead, m.IOBytesWrite)
 }
 
-// GetHeight returns total column height
+// Return total column height
 func (e *Single) GetHeight() (h int) {
 	h += e.Info.Height
 	h += e.Net.Height

cwidgets/single/mem.go

@@ -70,7 +70,7 @@ func newMemChart() *ui.MBarChart {
 	mbar.BarColor[1] = ui.ColorBlack
 	mbar.NumColor[1] = ui.ColorBlack
 
-	mbar.NumFmt = cwidgets.ByteFormatShort
+	mbar.NumFmt = cwidgets.ByteFormatInt
 	//mbar.ShowScale = true
 	return mbar
 }
@@ -78,6 +78,6 @@ func newMemChart() *ui.MBarChart {
 func (w *Mem) Update(val int, limit int) {
 	w.valHist.Append(val)
 	w.limitHist.Append(limit - val)
-	w.InnerLabel.Text = fmt.Sprintf("%v / %v", cwidgets.ByteFormatShort(val), cwidgets.ByteFormatShort(limit))
+	w.InnerLabel.Text = fmt.Sprintf("%v / %v", cwidgets.ByteFormatInt(val), cwidgets.ByteFormatInt(limit))
 	//w.Data[0] = w.hist.data
 }

cwidgets/single/net.go

@@ -42,10 +42,10 @@ func (w *Net) Update(rx int64, tx int64) {
 	var rate string
 
 	w.rxHist.Append(int(rx))
-	rate = strings.ToLower(cwidgets.ByteFormat(w.rxHist.Val))
+	rate = strings.ToLower(cwidgets.ByteFormatInt(w.rxHist.Val))
 	w.Lines[0].Title = fmt.Sprintf("RX [%s/s]", rate)
 
 	w.txHist.Append(int(tx))
-	rate = strings.ToLower(cwidgets.ByteFormat(w.txHist.Val))
+	rate = strings.ToLower(cwidgets.ByteFormatInt(w.txHist.Val))
 	w.Lines[1].Title = fmt.Sprintf("TX [%s/s]", rate)
 }

cwidgets/util.go

@@ -1,74 +1,53 @@
 package cwidgets
 
 import (
+	"fmt"
 	"strconv"
 )
 
 const (
-	// byte ratio constants
+	kb = 1024
-	_           = iota
+	mb = kb * 1024
-	kib float64 = 1 << (10 * iota)
+	gb = mb * 1024
-	mib
+	tb = gb * 1024
-	gib
-	tib
-	pib
 )
 
-var (
+// convenience method
-	units = []float64{
+func ByteFormatInt(n int) string {
-		1,
+	return ByteFormat(int64(n))
-		kib,
-		mib,
-		gib,
-		tib,
-		pib,
-	}
-
-	// short, full unit labels
-	labels = [][2]string{
-		[2]string{"B", "B"},
-		[2]string{"K", "KiB"},
-		[2]string{"M", "MiB"},
-		[2]string{"G", "GiB"},
-		[2]string{"T", "TiB"},
-		[2]string{"P", "PiB"},
-	}
-)
-
-// convenience methods
-func ByteFormat(n int) string          { return byteFormat(float64(n), false) }
-func ByteFormatShort(n int) string     { return byteFormat(float64(n), true) }
-func ByteFormat64(n int64) string      { return byteFormat(float64(n), false) }
-func ByteFormat64Short(n int64) string { return byteFormat(float64(n), true) }
-
-func byteFormat(n float64, short bool) string {
-	i := len(units) - 1
-
-	for i > 0 {
-		if n >= units[i] {
-			n /= units[i]
-			break
-		}
-		i--
-	}
-
-	if short {
-		return unpadFloat(n, 0) + labels[i][0]
-	}
-	return unpadFloat(n, 2) + labels[i][1]
 }
 
-func unpadFloat(f float64, maxp int) string {
+func ByteFormat(n int64) string {
-	return strconv.FormatFloat(f, 'f', getPrecision(f, maxp), 64)
+	if n < kb {
+		return fmt.Sprintf("%sB", strconv.FormatInt(n, 10))
+	}
+	if n < mb {
+		n = n / kb
+		return fmt.Sprintf("%sK", strconv.FormatInt(n, 10))
+	}
+	if n < gb {
+		n = n / mb
+		return fmt.Sprintf("%sM", strconv.FormatInt(n, 10))
+	}
+	if n < tb {
+		nf := float64(n) / gb
+		return fmt.Sprintf("%sG", unpadFloat(nf))
+	}
+	nf := float64(n) / tb
+	return fmt.Sprintf("%sT", unpadFloat(nf))
 }
 
-func getPrecision(f float64, maxp int) int {
+func unpadFloat(f float64) string {
+	return strconv.FormatFloat(f, 'f', getPrecision(f), 64)
+}
+
+func getPrecision(f float64) int {
 	frac := int((f - float64(int(f))) * 100)
-	if frac == 0 || maxp == 0 {
+	if frac == 0 {
 		return 0
 	}
-	if frac%10 == 0 || maxp < 2 {
+	if frac%10 == 0 {
 		return 1
 	}
-	return maxp
+	return 2 // default precision
 }

debug.go

@@ -12,10 +12,6 @@ import (
 var mstats = &runtime.MemStats{}
 
 func logEvent(e ui.Event) {
-	// skip timer events e.g. /timer/1s
-	if e.From == "timer" {
-		return
-	}
 	var s string
 	s += fmt.Sprintf("Type=%s", quote(e.Type))
 	s += fmt.Sprintf(" Path=%s", quote(e.Path))

go.mod

@@ -1,21 +1,61 @@
 module github.com/bcicen/ctop
 
 require (
-	github.com/BurntSushi/toml v0.3.1
+	github.com/Azure/go-ansiterm v0.0.0-20160622173216-fa152c58bc15 // indirect
+	github.com/BurntSushi/toml v0.3.0
+	github.com/Microsoft/go-winio v0.3.8 // indirect
+	github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5 // indirect
+	github.com/Sirupsen/logrus v0.0.0-20150423025312-26709e271410 // indirect
 	github.com/c9s/goprocinfo v0.0.0-20170609001544-b34328d6e0cd
-	github.com/fsouza/go-dockerclient v1.6.6
+	github.com/coreos/go-systemd v0.0.0-20151104194251-b4a58d95188d // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/docker/docker v0.0.0-20170502054910-90d35abf7b35 // indirect
+	github.com/docker/go-connections v0.0.0-20170301234100-a2afab980204 // indirect
+	github.com/docker/go-units v0.3.2 // indirect
+	github.com/fsouza/go-dockerclient v0.0.0-20170307141636-318513eb1ab2
+	github.com/ghodss/yaml v1.0.0 // indirect
 	github.com/gizak/termui v2.3.0+incompatible
+	github.com/godbus/dbus v0.0.0-20151105175453-c7fdd8b5cd55 // indirect
+	github.com/gogo/protobuf v1.1.1 // indirect
+	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b // indirect
+	github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c // indirect
+	github.com/google/gofuzz v0.0.0-20170612174753-24818f796faf // indirect
+	github.com/googleapis/gnostic v0.2.0 // indirect
+	github.com/gregjones/httpcache v0.0.0-20181110185634-c63ab54fda8f // indirect
+	github.com/hashicorp/go-cleanhttp v0.0.0-20170211013415-3573b8b52aa7 // indirect
+	github.com/imdario/mergo v0.3.6 // indirect
 	github.com/jgautheron/codename-generator v0.0.0-20150829203204-16d037c7cc3c
+	github.com/json-iterator/go v1.1.5 // indirect
 	github.com/mattn/go-runewidth v0.0.0-20170201023540-14207d285c6c // indirect
 	github.com/mitchellh/go-wordwrap v0.0.0-20150314170334-ad45545899c7 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.1 // indirect
 	github.com/nsf/termbox-go v0.0.0-20180303152453-e2050e41c884
 	github.com/nu7hatch/gouuid v0.0.0-20131221200532-179d4d0c4d8d
 	github.com/op/go-logging v0.0.0-20160211212156-b2cb9fa56473
-	github.com/opencontainers/runc v1.0.0-rc92
+	github.com/opencontainers/runc v0.1.1
-	github.com/pkg/errors v0.9.1
+	github.com/peterbourgon/diskv v2.0.1+incompatible // indirect
-	github.com/stretchr/testify v1.4.0
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/seccomp/libseccomp-golang v0.0.0-20150813023252-1b506fc7c24e // indirect
+	github.com/spf13/pflag v1.0.3 // indirect
+	github.com/stretchr/testify v1.2.2 // indirect
+	github.com/syndtr/gocapability v0.0.0-20150716010906-2c00daeb6c3b // indirect
+	github.com/vishvananda/netlink v0.0.0-20150820014904-1e2e08e8a2dc // indirect
+	github.com/vishvananda/netns v0.0.0-20180720170159-13995c7128cc // indirect
+	golang.org/x/crypto v0.0.0-20181127143415-eb0de9b17e85 // indirect
+	golang.org/x/oauth2 v0.0.0-20181128211412-28207608b838 // indirect
+	golang.org/x/sync v0.0.0-20181108010431-42b317875d0f // indirect
+	golang.org/x/sys v0.0.0-20181128092732-4ed8d59d0b35 // indirect
+	golang.org/x/time v0.0.0-20181108054448-85acf8d2951c // indirect
+	google.golang.org/appengine v1.3.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v2 v2.2.2 // indirect
+	k8s.io/api v0.0.0-20181130031204-d04500c8c3dd
+	k8s.io/apimachinery v0.0.0-20181201231028-18a5ff3097b4
+	k8s.io/client-go v9.0.0+incompatible
+	k8s.io/klog v0.1.0 // indirect
+	k8s.io/metrics v0.0.0-20181121073115-d8618695b08f
+	sigs.k8s.io/yaml v1.1.0 // indirect
 )
 
 replace github.com/gizak/termui => github.com/bcicen/termui v0.0.0-20180326052246-4eb80249d3f5
-
-go 1.15

go.sum

@@ -1,321 +0,0 @@
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-golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190514135907-3a4b5fb9f71f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190606203320-7fc4e5ec1444/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20191115151921-52ab43148777/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200124204421-9fbb57f87de9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200728102440-3e129f6d46b1 h1:sIky/MyNRSHTrdxfsiUSS4WIAMvInbeXljJz+jDjeYE=
-golang.org/x/sys v0.0.0-20200728102440-3e129f6d46b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
-golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
-golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
-golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
-golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
-golang.org/x/tools v0.0.0-20190624222133-a101b041ded4 h1:1mMox4TgefDwqluYCv677yNXwlfTkija4owZve/jr78=
-golang.org/x/tools v0.0.0-20190624222133-a101b041ded4/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
-google.golang.org/appengine v1.4.0 h1:/wp5JvzpHIxhs/dumFmF7BXTf3Z+dd4uXta4kVyO508=
-google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
-google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
-google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
-google.golang.org/genproto v0.0.0-20190502173448-54afdca5d873/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
-google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55 h1:gSJIx1SDwno+2ElGhA4+qG2zF97qiUzTM+rQ0klBOcE=
-google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
-google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
-google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
-google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
-google.golang.org/grpc v1.23.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
-google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
-google.golang.org/grpc v1.29.1 h1:EC2SB8S04d2r73uptxphDSUG+kTKVgjRPF+N3xpxRB4=
-google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
-google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
-google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
-google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
-google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
-google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
-google.golang.org/protobuf v1.23.0 h1:4MY060fB1DLGMB/7MBTLnwQUY6+F09GEiz6SsrNqyzM=
-google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-gopkg.in/airbrake/gobrake.v2 v2.0.9 h1:7z2uVWwn7oVeeugY1DtlPAy5H+KYgB1KeKTnqjNatLo=
-gopkg.in/airbrake/gobrake.v2 v2.0.9/go.mod h1:/h5ZAUhDkGaJfjzjKLSjv6zCL6O0LLBxU4K+aSYdM/U=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
-gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
-gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2 h1:OAj3g0cR6Dx/R07QgQe8wkA9RNjB2u4i700xBkIT4e0=
-gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2/go.mod h1:Xk6kEKp8OKb+X14hQBKWaSkCsqBpgog8nAV2xsGOxlo=
-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
-gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
-gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo=
-gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
-gotest.tools/v3 v3.0.2 h1:kG1BFyqVHuQoVQiR1bWGnfz/fmHvvuiSPIV7rvl360E=
-gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=
-honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
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-honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

grid.go

@@ -6,44 +6,6 @@ import (
 	ui "github.com/gizak/termui"
 )
 
-func ShowConnError(err error) (exit bool) {
-	ui.Clear()
-	ui.DefaultEvtStream.ResetHandlers()
-	defer ui.DefaultEvtStream.ResetHandlers()
-
-	setErr := func(err error) {
-		errView.Append(err.Error())
-		errView.Append("attempting to reconnect...")
-		ui.Render(errView)
-	}
-
-	HandleKeys("exit", func() {
-		exit = true
-		ui.StopLoop()
-	})
-
-	ui.Handle("/timer/1s", func(ui.Event) {
-		_, err := cursor.RefreshContainers()
-		if err == nil {
-			ui.StopLoop()
-			return
-		}
-		setErr(err)
-	})
-
-	ui.Handle("/sys/wnd/resize", func(e ui.Event) {
-		errView.Resize()
-		ui.Clear()
-		ui.Render(errView)
-		log.Infof("RESIZE")
-	})
-
-	errView.Resize()
-	setErr(err)
-	ui.Loop()
-	return exit
-}
-
 func RedrawRows(clr bool) {
 	// reinit body rows
 	cGrid.Clear()
@@ -71,6 +33,7 @@ func RedrawRows(clr bool) {
 	}
 	cGrid.Align()
 	ui.Render(cGrid)
+
 }
 
 func SingleView() MenuFn {
@@ -83,7 +46,7 @@ func SingleView() MenuFn {
 	ui.DefaultEvtStream.ResetHandlers()
 	defer ui.DefaultEvtStream.ResetHandlers()
 
-	ex := single.NewSingle()
+	ex := single.NewSingle(c.Id)
 	c.SetUpdater(ex)
 
 	ex.Align()
@@ -105,21 +68,16 @@ func SingleView() MenuFn {
 	return nil
 }
 
-func RefreshDisplay() error {
+func RefreshDisplay() {
 	// skip display refresh during scroll
 	if !cursor.isScrolling {
-		needsClear, err := cursor.RefreshContainers()
+		needsClear := cursor.RefreshContainers()
-		if err != nil {
-			return err
-		}
 		RedrawRows(needsClear)
 	}
-	return nil
 }
 
 func Display() bool {
 	var menu MenuFn
-	var connErr error
 
 	cGrid.SetWidth(ui.TermWidth())
 	ui.DefaultEvtStream.Hook(logEvent)
@@ -158,20 +116,13 @@ func Display() bool {
 		menu = LogMenu
 		ui.StopLoop()
 	})
-	ui.Handle("/sys/kbd/e", func(ui.Event) {
-		menu = ExecShell
-		ui.StopLoop()
-	})
 	ui.Handle("/sys/kbd/o", func(ui.Event) {
 		menu = SingleView
 		ui.StopLoop()
 	})
 	ui.Handle("/sys/kbd/a", func(ui.Event) {
 		config.Toggle("allContainers")
-		connErr = RefreshDisplay()
+		RefreshDisplay()
-		if connErr != nil {
-			ui.StopLoop()
-		}
 	})
 	ui.Handle("/sys/kbd/D", func(ui.Event) {
 		dumpContainer(cursor.Selected())
@@ -191,10 +142,6 @@ func Display() bool {
 		menu = SortMenu
 		ui.StopLoop()
 	})
-	ui.Handle("/sys/kbd/c", func(ui.Event) {
-		menu = ColumnsMenu
-		ui.StopLoop()
-	})
 	ui.Handle("/sys/kbd/S", func(ui.Event) {
 		path, err := config.Write()
 		if err == nil {
@@ -209,10 +156,7 @@ func Display() bool {
 		if log.StatusQueued() {
 			ui.StopLoop()
 		}
-		connErr = RefreshDisplay()
+		RefreshDisplay()
-		if connErr != nil {
-			ui.StopLoop()
-		}
 	})
 
 	ui.Handle("/sys/wnd/resize", func(e ui.Event) {
@@ -226,10 +170,6 @@ func Display() bool {
 
 	ui.Loop()
 
-	if connErr != nil {
-		return ShowConnError(connErr)
-	}
-
 	if log.StatusQueued() {
 		for sm := range log.FlushStatus() {
 			if sm.IsError {

logging/main.go

@@ -29,7 +29,6 @@ type statusMsg struct {
 type CTopLogger struct {
 	*logging.Logger
 	backend *logging.MemoryBackend
-	logFile *os.File
 	sLog    []statusMsg
 }
 
@@ -59,37 +58,18 @@ func Init() *CTopLogger {
 		Log = &CTopLogger{
 			logging.MustGetLogger("ctop"),
 			logging.NewMemoryBackend(size),
-			nil,
 			[]statusMsg{},
 		}
 
-		debugMode := debugMode()
+		if debugMode() {
-		if debugMode {
 			level = logging.DEBUG
+			StartServer()
 		}
+
 		backendLvl := logging.AddModuleLevel(Log.backend)
 		backendLvl.SetLevel(level, "")
 
-		logFilePath := debugModeFile()
+		logging.SetBackend(backendLvl)
-		if logFilePath == "" {
-			logging.SetBackend(backendLvl)
-		} else {
-			logFile, err := os.OpenFile(logFilePath, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0666)
-			if err != nil {
-				logging.SetBackend(backendLvl)
-				Log.Error("Unable to create log file: %s", err.Error())
-			} else {
-				backendFile := logging.NewLogBackend(logFile, "", 0)
-				backendFileLvl := logging.AddModuleLevel(backendFile)
-				backendFileLvl.SetLevel(level, "")
-				logging.SetBackend(backendLvl, backendFileLvl)
-				Log.logFile = logFile
-			}
-		}
-
-		if debugMode {
-			StartServer()
-		}
 		Log.Notice("logger initialized")
 	}
 	return Log
@@ -122,12 +102,8 @@ func (log *CTopLogger) tail() chan string {
 
 func (log *CTopLogger) Exit() {
 	exited = true
-	if log.logFile != nil {
-		_ = log.logFile.Close()
-	}
 	StopServer()
 }
 
-func debugMode() bool       { return os.Getenv("CTOP_DEBUG") == "1" }
+func debugMode() bool    { return os.Getenv("CTOP_DEBUG") == "1" }
-func debugModeTCP() bool    { return os.Getenv("CTOP_DEBUG_TCP") == "1" }
+func debugModeTCP() bool { return os.Getenv("CTOP_DEBUG_TCP") == "1" }
-func debugModeFile() string { return os.Getenv("CTOP_DEBUG_FILE") }

main.go

@@ -22,31 +22,31 @@ var (
 	version   = "dev-build"
 	goVersion = runtime.Version()
 
-	log     *logging.CTopLogger
+	log    *logging.CTopLogger
-	cursor  *GridCursor
+	cursor *GridCursor
-	cGrid   *compact.CompactGrid
+	cGrid  *compact.CompactGrid
-	header  *widgets.CTopHeader
+	header *widgets.CTopHeader
-	status  *widgets.StatusLine
+	status *widgets.StatusLine
-	errView *widgets.ErrorView
 
 	versionStr = fmt.Sprintf("ctop version %v, build %v %v", version, build, goVersion)
+
+	fs              = flag.NewFlagSet("ctop", flag.ExitOnError)
+	versionFlag     = fs.Bool("version", false, "output version information and exit")
+	helpFlag        = fs.Bool("h", false, "display this help dialog")
+	filterFlag      = fs.String("f", "", "filter containers")
+	activeOnlyFlag  = fs.Bool("a", false, "show active containers only")
+	sortFieldFlag   = fs.String("s", "", "select container sort field")
+	reverseSortFlag = fs.Bool("r", false, "reverse container sort order")
+	invertFlag      = fs.Bool("i", false, "invert default colors")
+	scaleCpu        = fs.Bool("scale-cpu", false, "show cpu as % of system total")
+	connectorFlag   = fs.String("connector", "docker", "container connector to use")
+	namespaceFlag   = fs.String("n", "default", "Kubernetes namespace for monitoring")
 )
 
 func main() {
 	defer panicExit()
 
-	// parse command line arguments
+	fs.Parse(os.Args[1:])
-	var (
-		versionFlag     = flag.Bool("v", false, "output version information and exit")
-		helpFlag        = flag.Bool("h", false, "display this help dialog")
-		filterFlag      = flag.String("f", "", "filter containers")
-		activeOnlyFlag  = flag.Bool("a", false, "show active containers only")
-		sortFieldFlag   = flag.String("s", "", "select container sort field")
-		reverseSortFlag = flag.Bool("r", false, "reverse container sort order")
-		invertFlag      = flag.Bool("i", false, "invert default colors")
-		connectorFlag   = flag.String("connector", "docker", "container connector to use")
-	)
-	flag.Parse()
 
 	if *versionFlag {
 		fmt.Println(versionStr)
@@ -63,9 +63,7 @@ func main() {
 
 	// init global config and read config file if exists
 	config.Init()
-	if err := config.Read(); err != nil {
+	config.Read()
-		log.Warningf("reading config: %s", err)
-	}
 
 	// override default config values with command line flags
 	if *filterFlag != "" {
@@ -85,10 +83,15 @@ func main() {
 		config.Toggle("sortReversed")
 	}
 
+	if *scaleCpu {
+		config.Toggle("scaleCpu")
+	}
+
 	// init ui
 	if *invertFlag {
 		InvertColorMap()
 	}
+	config.Update("namespace", *namespaceFlag)
 	ui.ColorMap = ColorMap // override default colormap
 	if err := ui.Init(); err != nil {
 		panic(err)
@@ -97,15 +100,14 @@ func main() {
 
 	defer Shutdown()
 	// init grid, cursor, header
-	cSuper, err := connector.ByName(*connectorFlag)
+	conn, err := connector.ByName(*connectorFlag)
 	if err != nil {
 		panic(err)
 	}
-	cursor = &GridCursor{cSuper: cSuper}
+	cursor = &GridCursor{cSource: conn}
 	cGrid = compact.NewCompactGrid()
 	header = widgets.NewCTopHeader()
 	status = widgets.NewStatusLine()
-	errView = widgets.NewErrorView()
 
 	for {
 		exit := Display()
@@ -134,7 +136,6 @@ func validSort(s string) {
 func panicExit() {
 	if r := recover(); r != nil {
 		Shutdown()
-		panic(r)
 		fmt.Printf("error: %s\n", r)
 		os.Exit(1)
 	}
@@ -149,7 +150,7 @@ options:
 
 func printHelp() {
 	fmt.Println(helpMsg)
-	flag.PrintDefaults()
+	fs.PrintDefaults()
 	fmt.Printf("\navailable connectors: ")
 	fmt.Println(strings.Join(connector.Enabled(), ", "))
 }

menus.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"fmt"
-	"strings"
 	"time"
 
 	"github.com/bcicen/ctop/config"
@@ -26,8 +25,6 @@ var helpDialog = []menu.Item{
 	{"[r] - reverse container sort order", ""},
 	{"[o] - open single view", ""},
 	{"[l] - view container logs ([t] to toggle timestamp when open)", ""},
-	{"[e] - exec shell", ""},
-	{"[c] - configure columns", ""},
 	{"[S] - save current configuration to file", ""},
 	{"[q] - exit ctop", ""},
 }
@@ -106,90 +103,7 @@ func SortMenu() MenuFn {
 	HandleKeys("exit", ui.StopLoop)
 
 	ui.Handle("/sys/kbd/<enter>", func(ui.Event) {
-		config.Update("sortField", m.SelectedValue())
+		config.Update("sortField", m.SelectedItem().Val)
-		ui.StopLoop()
-	})
-
-	ui.Render(m)
-	ui.Loop()
-	return nil
-}
-
-func ColumnsMenu() MenuFn {
-	const (
-		enabledStr  = "[X]"
-		disabledStr = "[ ]"
-		padding     = 2
-	)
-
-	ui.Clear()
-	ui.DefaultEvtStream.ResetHandlers()
-	defer ui.DefaultEvtStream.ResetHandlers()
-
-	m := menu.NewMenu()
-	m.Selectable = true
-	m.SortItems = false
-	m.BorderLabel = "Columns"
-	m.SubText = "Re-order: <Page Up> / <Page Down>"
-
-	rebuild := func() {
-		// get padding for right alignment of enabled status
-		var maxLen int
-		for _, col := range config.GlobalColumns {
-			if len(col.Label) > maxLen {
-				maxLen = len(col.Label)
-			}
-		}
-		maxLen += padding
-
-		// rebuild menu items
-		m.ClearItems()
-		for _, col := range config.GlobalColumns {
-			txt := col.Label + strings.Repeat(" ", maxLen-len(col.Label))
-			if col.Enabled {
-				txt += enabledStr
-			} else {
-				txt += disabledStr
-			}
-			m.AddItems(menu.Item{col.Name, txt})
-		}
-	}
-
-	upFn := func() {
-		config.ColumnLeft(m.SelectedValue())
-		m.Up()
-		rebuild()
-	}
-
-	downFn := func() {
-		config.ColumnRight(m.SelectedValue())
-		m.Down()
-		rebuild()
-	}
-
-	toggleFn := func() {
-		config.ColumnToggle(m.SelectedValue())
-		rebuild()
-	}
-
-	rebuild()
-
-	HandleKeys("up", m.Up)
-	HandleKeys("down", m.Down)
-	HandleKeys("enter", toggleFn)
-	HandleKeys("pgup", upFn)
-	HandleKeys("pgdown", downFn)
-
-	ui.Handle("/sys/kbd/x", func(ui.Event) { toggleFn() })
-	ui.Handle("/sys/kbd/<enter>", func(ui.Event) { toggleFn() })
-
-	HandleKeys("exit", func() {
-		cSource, err := cursor.cSuper.Get()
-		if err == nil {
-			for _, c := range cSource.All() {
-				c.RecreateWidgets()
-			}
-		}
 		ui.StopLoop()
 	})
 
@@ -212,111 +126,55 @@ func ContainerMenu() MenuFn {
 	m.BorderLabel = "Menu"
 
 	items := []menu.Item{
-		menu.Item{Val: "single", Label: "[o] single view"},
+		menu.Item{Val: "single", Label: "single view"},
-		menu.Item{Val: "logs", Label: "[l] log view"},
+		menu.Item{Val: "logs", Label: "log view"},
 	}
 
 	if c.Meta["state"] == "running" {
-		items = append(items, menu.Item{Val: "stop", Label: "[s] stop"})
+		items = append(items, menu.Item{Val: "stop", Label: "stop"})
-		items = append(items, menu.Item{Val: "pause", Label: "[p] pause"})
+		items = append(items, menu.Item{Val: "pause", Label: "pause"})
-		items = append(items, menu.Item{Val: "restart", Label: "[r] restart"})
+		items = append(items, menu.Item{Val: "restart", Label: "restart"})
-		items = append(items, menu.Item{Val: "exec", Label: "[e] exec shell"})
 	}
 	if c.Meta["state"] == "exited" || c.Meta["state"] == "created" {
-		items = append(items, menu.Item{Val: "start", Label: "[s] start"})
+		items = append(items, menu.Item{Val: "start", Label: "start"})
-		items = append(items, menu.Item{Val: "remove", Label: "[R] remove"})
+		items = append(items, menu.Item{Val: "remove", Label: "remove"})
 	}
 	if c.Meta["state"] == "paused" {
-		items = append(items, menu.Item{Val: "unpause", Label: "[p] unpause"})
+		items = append(items, menu.Item{Val: "unpause", Label: "unpause"})
 	}
-	items = append(items, menu.Item{Val: "cancel", Label: "[c] cancel"})
+	items = append(items, menu.Item{Val: "cancel", Label: "cancel"})
 
 	m.AddItems(items...)
 	ui.Render(m)
 
+	var nextMenu MenuFn
 	HandleKeys("up", m.Up)
 	HandleKeys("down", m.Down)
-
-	var selected string
-
-	// shortcuts
-	ui.Handle("/sys/kbd/o", func(ui.Event) {
-		selected = "single"
-		ui.StopLoop()
-	})
-	ui.Handle("/sys/kbd/l", func(ui.Event) {
-		selected = "logs"
-		ui.StopLoop()
-	})
-	if c.Meta["state"] != "paused" {
-		ui.Handle("/sys/kbd/s", func(ui.Event) {
-			if c.Meta["state"] == "running" {
-				selected = "stop"
-			} else {
-				selected = "start"
-			}
-			ui.StopLoop()
-		})
-	}
-	if c.Meta["state"] != "exited" && c.Meta["state"] != "created" {
-		ui.Handle("/sys/kbd/p", func(ui.Event) {
-			if c.Meta["state"] == "paused" {
-				selected = "unpause"
-			} else {
-				selected = "pause"
-			}
-			ui.StopLoop()
-		})
-	}
-	if c.Meta["state"] == "running" {
-		ui.Handle("/sys/kbd/e", func(ui.Event) {
-			selected = "exec"
-			ui.StopLoop()
-		})
-		ui.Handle("/sys/kbd/r", func(ui.Event) {
-			selected = "restart"
-			ui.StopLoop()
-		})
-	}
-	ui.Handle("/sys/kbd/R", func(ui.Event) {
-		selected = "remove"
-		ui.StopLoop()
-	})
-	ui.Handle("/sys/kbd/c", func(ui.Event) {
-		ui.StopLoop()
-	})
-
 	ui.Handle("/sys/kbd/<enter>", func(ui.Event) {
-		selected = m.SelectedValue()
+		switch m.SelectedItem().Val {
+		case "single":
+			nextMenu = SingleView
+		case "logs":
+			nextMenu = LogMenu
+		case "start":
+			nextMenu = Confirm(confirmTxt("start", c.GetMeta("name")), c.Start)
+		case "stop":
+			nextMenu = Confirm(confirmTxt("stop", c.GetMeta("name")), c.Stop)
+		case "remove":
+			nextMenu = Confirm(confirmTxt("remove", c.GetMeta("name")), c.Remove)
+		case "pause":
+			nextMenu = Confirm(confirmTxt("pause", c.GetMeta("name")), c.Pause)
+		case "unpause":
+			nextMenu = Confirm(confirmTxt("unpause", c.GetMeta("name")), c.Unpause)
+		case "restart":
+			nextMenu = Confirm(confirmTxt("restart", c.GetMeta("name")), c.Restart)
+		}
 		ui.StopLoop()
 	})
 	ui.Handle("/sys/kbd/", func(ui.Event) {
 		ui.StopLoop()
 	})
 	ui.Loop()
-
-	var nextMenu MenuFn
-	switch selected {
-	case "single":
-		nextMenu = SingleView
-	case "logs":
-		nextMenu = LogMenu
-	case "exec":
-		nextMenu = ExecShell
-	case "start":
-		nextMenu = Confirm(confirmTxt("start", c.GetMeta("name")), c.Start)
-	case "stop":
-		nextMenu = Confirm(confirmTxt("stop", c.GetMeta("name")), c.Stop)
-	case "remove":
-		nextMenu = Confirm(confirmTxt("remove", c.GetMeta("name")), c.Remove)
-	case "pause":
-		nextMenu = Confirm(confirmTxt("pause", c.GetMeta("name")), c.Pause)
-	case "unpause":
-		nextMenu = Confirm(confirmTxt("unpause", c.GetMeta("name")), c.Unpause)
-	case "restart":
-		nextMenu = Confirm(confirmTxt("restart", c.GetMeta("name")), c.Restart)
-	}
-
 	return nextMenu
 }
 
@@ -349,31 +207,6 @@ func LogMenu() MenuFn {
 	return nil
 }
 
-func ExecShell() MenuFn {
-	c := cursor.Selected()
-
-	if c == nil {
-		return nil
-	}
-
-	ui.DefaultEvtStream.ResetHandlers()
-	defer ui.DefaultEvtStream.ResetHandlers()
-	// Detect and execute default shell in container.
-	// Execute Ash shell command: /bin/sh -c
-	// Reset colors: printf '\e[0m\e[?25h'
-	// Clear screen
-	// Run default shell for the user. It's configured in /etc/passwd and looks like root:x:0:0:root:/root:/bin/bash:
-	//  1. Get current user id: id -un
-	//  2. Find user's line in /etc/passwd by grep
-	//  3. Extract default user's shell by cutting seven's column separated by :
-	//  4. Execute the shell path with eval
-	if err := c.Exec([]string{"/bin/sh", "-c", "printf '\\e[0m\\e[?25h' && clear && eval `grep ^$(id -un): /etc/passwd | cut -d : -f 7-`"}); err != nil {
-		log.StatusErr(err)
-	}
-
-	return nil
-}
-
 // Create a confirmation dialog with a given description string and
 // func to perform if confirmed
 func Confirm(txt string, fn func()) MenuFn {
@@ -413,7 +246,7 @@ func Confirm(txt string, fn func()) MenuFn {
 		ui.Handle("/sys/kbd/y", func(ui.Event) { yes() })
 
 		ui.Handle("/sys/kbd/<enter>", func(ui.Event) {
-			switch m.SelectedValue() {
+			switch m.SelectedItem().Val {
 			case "cancel":
 				no()
 			case "yes":

models/main.go

@@ -7,31 +7,7 @@ type Log struct {
 	Message   string
 }
 
-type Meta map[string]string
-
-// NewMeta returns an initialized Meta map.
-// An optional series of key, values may be provided to populate the map prior to returning
-func NewMeta(kvs ...string) Meta {
-	m := make(Meta)
-
-	var i int
-	for i < len(kvs)-1 {
-		m[kvs[i]] = kvs[i+1]
-		i += 2
-	}
-
-	return m
-}
-
-func (m Meta) Get(k string) string {
-	if s, ok := m[k]; ok {
-		return s
-	}
-	return ""
-}
-
 type Metrics struct {
-	NCpus        uint8
 	CPUUtil      int
 	NetTx        int64
 	NetRx        int64

widgets/error.go

@@ -1,60 +0,0 @@
-package widgets
-
-import (
-	"fmt"
-	"strings"
-	"time"
-
-	ui "github.com/gizak/termui"
-)
-
-type ErrorView struct {
-	*ui.Par
-	lines []string
-}
-
-func NewErrorView() *ErrorView {
-	const yPad = 1
-	const xPad = 2
-
-	p := ui.NewPar("")
-	p.X = xPad
-	p.Y = yPad
-	p.Border = true
-	p.Height = 10
-	p.Width = 20
-	p.PaddingTop = yPad
-	p.PaddingBottom = yPad
-	p.PaddingLeft = xPad
-	p.PaddingRight = xPad
-	p.BorderLabel = " ctop - error "
-	p.Bg = ui.ThemeAttr("bg")
-	p.TextFgColor = ui.ThemeAttr("status.warn")
-	p.TextBgColor = ui.ThemeAttr("menu.text.bg")
-	p.BorderFg = ui.ThemeAttr("status.warn")
-	p.BorderLabelFg = ui.ThemeAttr("status.warn")
-	return &ErrorView{p, make([]string, 0, 50)}
-}
-
-func (w *ErrorView) Append(s string) {
-	if len(w.lines)+2 >= cap(w.lines) {
-		w.lines = append(w.lines[:0], w.lines[2:]...)
-	}
-	ts := time.Now().Local().Format("15:04:05 MST")
-	w.lines = append(w.lines, fmt.Sprintf("[%s] %s", ts, s))
-	w.lines = append(w.lines, "")
-}
-
-func (w *ErrorView) Buffer() ui.Buffer {
-	offset := len(w.lines) - w.InnerHeight()
-	if offset < 0 {
-		offset = 0
-	}
-	w.Text = strings.Join(w.lines[offset:len(w.lines)], "\n")
-	return w.Par.Buffer()
-}
-
-func (w *ErrorView) Resize() {
-	w.Height = ui.TermHeight() - (w.PaddingTop + w.PaddingBottom)
-	w.SetWidth(ui.TermWidth() - (w.PaddingLeft + w.PaddingRight))
-}

widgets/header.go

@@ -16,7 +16,7 @@ type CTopHeader struct {
 
 func NewCTopHeader() *CTopHeader {
 	return &CTopHeader{
-		Time:   headerPar(2, ""),
+		Time:   headerPar(2, timeStr()),
 		Count:  headerPar(24, "-"),
 		Filter: headerPar(40, ""),
 		bg:     headerBg(),

widgets/menu/main.go

@@ -11,14 +11,13 @@ type Padding [2]int // x,y padding
 type Menu struct {
 	ui.Block
 	SortItems   bool   // enable automatic sorting of menu items
-	Selectable  bool   // whether menu is navigable
 	SubText     string // optional text to display before items
 	TextFgColor ui.Attribute
 	TextBgColor ui.Attribute
+	Selectable  bool
 	cursorPos   int
 	items       Items
 	padding     Padding
-	toolTip     *ToolTip
 }
 
 func NewMenu() *Menu {
@@ -43,7 +42,7 @@ func (m *Menu) AddItems(items ...Item) {
 	m.refresh()
 }
 
-// DelItem removes menu item by value or label
+// Remove menu item by value or label
 func (m *Menu) DelItem(s string) (success bool) {
 	for n, i := range m.items {
 		if i.Val == s || i.Label == s {
@@ -56,11 +55,6 @@ func (m *Menu) DelItem(s string) (success bool) {
 	return success
 }
 
-// ClearItems removes all current menu items
-func (m *Menu) ClearItems() {
-	m.items = m.items[:0]
-}
-
 // Move cursor to an position by Item value or label
 func (m *Menu) SetCursor(s string) (success bool) {
 	for n, i := range m.items {
@@ -72,19 +66,19 @@ func (m *Menu) SetCursor(s string) (success bool) {
 	return false
 }
 
-// SetToolTip sets an optional tooltip string to show at bottom of screen
+// Sort menu items(if enabled) and re-calculate window size
-func (m *Menu) SetToolTip(lines ...string) {
+func (m *Menu) refresh() {
-	m.toolTip = NewToolTip(lines...)
+	if m.SortItems {
+		sort.Sort(m.items)
+	}
+	m.calcSize()
+	ui.Render(m)
 }
 
 func (m *Menu) SelectedItem() Item {
 	return m.items[m.cursorPos]
 }
 
-func (m *Menu) SelectedValue() string {
-	return m.items[m.cursorPos].Val
-}
-
 func (m *Menu) Buffer() ui.Buffer {
 	var cell ui.Cell
 	buf := m.Block.Buffer()
@@ -114,10 +108,6 @@ func (m *Menu) Buffer() ui.Buffer {
 		}
 	}
 
-	if m.toolTip != nil {
-		buf.Merge(m.toolTip.Buffer())
-	}
-
 	return buf
 }
 
@@ -135,15 +125,6 @@ func (m *Menu) Down() {
 	}
 }
 
-// Sort menu items(if enabled) and re-calculate window size
-func (m *Menu) refresh() {
-	if m.SortItems {
-		sort.Sort(m.items)
-	}
-	m.calcSize()
-	ui.Render(m)
-}
-
 // Set width and height based on menu items
 func (m *Menu) calcSize() {
 	m.Width = 7 // minimum width

widgets/menu/tooltip.go

@@ -1,55 +0,0 @@
-package menu
-
-import (
-	ui "github.com/gizak/termui"
-)
-
-type ToolTip struct {
-	ui.Block
-	Lines       []string
-	TextFgColor ui.Attribute
-	TextBgColor ui.Attribute
-	padding     Padding
-}
-
-func NewToolTip(lines ...string) *ToolTip {
-	t := &ToolTip{
-		Block:       *ui.NewBlock(),
-		Lines:       lines,
-		TextFgColor: ui.ThemeAttr("menu.text.fg"),
-		TextBgColor: ui.ThemeAttr("menu.text.bg"),
-		padding:     Padding{2, 1},
-	}
-	t.BorderFg = ui.ThemeAttr("menu.border.fg")
-	t.BorderLabelFg = ui.ThemeAttr("menu.label.fg")
-	t.X = 1
-	t.Align()
-	return t
-}
-
-func (t *ToolTip) Buffer() ui.Buffer {
-	var cell ui.Cell
-	buf := t.Block.Buffer()
-
-	y := t.Y + t.padding[1]
-
-	for n, line := range t.Lines {
-		x := t.X + t.padding[0]
-		for _, ch := range line {
-			cell = ui.Cell{Ch: ch, Fg: t.TextFgColor, Bg: t.TextBgColor}
-			buf.Set(x, y+n, cell)
-			x++
-		}
-	}
-
-	return buf
-}
-
-// Set width and height based on screen size
-func (t *ToolTip) Align() {
-	t.Width = ui.TermWidth() - (t.padding[0] * 2)
-	t.Height = len(t.Lines) + (t.padding[1] * 2)
-	t.Y = ui.TermHeight() - t.Height
-
-	t.Block.Align()
-}

widgets/view.go

@@ -2,7 +2,6 @@ package widgets
 
 import (
 	ui "github.com/gizak/termui"
-	"github.com/mattn/go-runewidth"
 )
 
 type ToggleText interface {
@@ -71,7 +70,7 @@ func (t *TextView) Buffer() ui.Buffer {
 		for _, ch := range line {
 			cell = ui.Cell{Ch: ch, Fg: t.TextFgColor, Bg: t.TextBgColor}
 			buf.Set(x, y, cell)
-			x = x + runewidth.RuneWidth(ch)
+			x++
 		}
 		x = t.Block.X + t.padding[0]
 		y++