README.md

@@ -11,28 +11,12 @@ different ways, to help you understand what's going on inside the system.
   * Download the [latest release](https://github.com/justone/dockviz/releases).
   * Set up an alias to run it from the (5.8 MB) docker image: 
 
-```
+  ```
-# if docker client using local unix socket
+  alias dockviz="docker run -it --rm -v /var/run/docker.sock:/var/run/docker.sock nate/dockviz"
-alias dockviz="docker run -it --rm -v /var/run/docker.sock:/var/run/docker.sock nate/dockviz"
+  ```
-
-# if docker client using tcp
-alias dockviz="docker run -it --rm -e DOCKER_HOST='tcp://127.0.0.1:2375' nate/dockviz"
-
-```
-
 2. Visualize images by running `dockviz images -t`, which has similar output to `docker images -t`.
-  * Image can be visualized as [Graphviz](http://www.graphviz.org), or as a tree or short summary in the terminal.  Only Graphviz output has been implemented for containers.
-  * If you would like to visualize outside the container you will have to install [Graphviz](http://www.graphviz.org) first.
 
-```
+Image can be visualized as [Graphviz](http://www.graphviz.org), or as a tree or short summary in the terminal.  Only Graphviz output has been implemented for containers.
-apt-get update && apt-get install graphviz
-```
-
-or
-
-```
-brew update && brew install graphviz
-```
 
 # Output Examples
 
@@ -41,11 +25,7 @@ brew update && brew install graphviz
 Currently, containers are visualized with labelled lines for links.  Containers that aren't running are greyed out.
 
 ```
-# show all containers
 $ dockviz containers -d | dot -Tpng -o containers.png
-
-# only show running containers
-$ dockviz containers -d -r | dot -Tpng -o containers.png
 ```
 
 ![](sample/containers.png "Container")
@@ -56,6 +36,8 @@ Image info is visualized with lines indicating parent images:
 
 ```
 $ dockviz images -d | dot -Tpng -o images.png
+OR
+$ dockviz images --dot | dot -Tpng -o images.png
 ```
 
 ![](sample/images.png "Image")
@@ -207,15 +189,11 @@ $ dockviz images -t -i -c
         └─316b678ddf48 Size: 70822908 Tags: ubuntu:13.04, ubuntu:raring
 ```
 
-It is also possible to show the image's CreatedBy field, for help identifying
-image layers when they show up with "<missing>" image Ids.
-
 # Running
 
 Dockviz supports connecting to the Docker daemon directly.  It defaults to `unix:///var/run/docker.sock`, but respects the following as well:
 
 * The `DOCKER_HOST`, `DOCKER_CERT_PATH`, and `DOCKER_TLS_VERIFY` environment variables, as set up by [boot2docker](http://boot2docker.io/) or [docker-machine](https://docs.docker.com/machine/).
-
 * Command line arguments (e.g. `--tlscacert`), like those that Docker itself supports.
 
 Dockviz also supports receiving Docker image or container json data on standard input.
@@ -238,27 +216,6 @@ See the [releases](https://github.com/justone/dockviz/releases) area for binarie
 # Build
 
 ```bash
-# install graphviz in host environment for rendering (Debian example)
+go get ./...
-sudo apt-get install git graphviz -y
-
-# pull latest code
-mkdir -p $GOPATH/src/github.com/nate/ && cd $GOPATH/src/github.com/nate/
-git clone https://github.com/nate/dockviz.git && cd dockviz
-
-# force static compilation for go language
-export CGO_ENABLED=0
-
-# fetch vendored dependencies
-govendor sync
-
-# build
 go build
-
-# build docker image
-docker build --no-cache=true -t "nate/dockviz:1.0" -t "nate/dockviz:latest" .
-
-# push to docker hub
-docker login --username=mygituser --password=xxxxxxx
-docker push nate/dockviz
-
 ```

cli.go

@@ -20,7 +20,7 @@ type GlobalOptions struct {
 var globalOptions GlobalOptions
 var parser = flags.NewParser(&globalOptions, flags.Default)
 
-var version = "v0.6.4"
+var version = "v0.5.0"
 
 func main() {
 	globalOptions.Version = func() {

containers.go

@@ -24,7 +24,6 @@ type Container struct {
 type ContainersCommand struct {
 	Dot        bool `short:"d" long:"dot" description:"Show container information as Graphviz dot."`
 	NoTruncate bool `short:"n" long:"no-trunc" description:"Don't truncate the container IDs."`
-	OnlyRunning bool `short:"r" long:"running" description:"Only show running containers, not Exited"`
 }
 
 var containersCommand ContainersCommand
@@ -82,7 +81,7 @@ func (x *ContainersCommand) Execute(args []string) error {
 	}
 
 	if containersCommand.Dot {
-		fmt.Printf(jsonContainersToDot(containers, containersCommand.OnlyRunning))
+		fmt.Printf(jsonContainersToDot(containers))
 	} else {
 		return fmt.Errorf("Please specify --dot")
 	}
@@ -116,53 +115,24 @@ func parseContainersJSON(rawJSON []byte) (*[]Container, error) {
 	return &containers, nil
 }
 
-func jsonContainersToDot(containers *[]Container,OnlyRunning bool) string {
+func jsonContainersToDot(containers *[]Container) string {
 
 	var buffer bytes.Buffer
 	buffer.WriteString("digraph docker {\n")
 
-	// build list of all primary container names
-	// this is so we can throw away links to 
-	// non-primary container name
-	var PrimaryContainerNames map[string]string
-	PrimaryContainerNames = make(map[string]string)
 	for _, container := range *containers {
-		for _, name := range container.Names {
-			if strings.Count(name, "/") == 1 {
-				PrimaryContainerNames[name[1:]] = name[1:]
-			}
-		}
-	}
-
-	// stores ony first value of link to avoid duplicates
-	var LinkMap map[string]string
-	LinkMap = make(map[string]string)
-
-	for _, container := range *containers {
-		if OnlyRunning && strings.HasPrefix(container.Status,"Exit") { continue }
 
 		var containerName string
 
-		//fmt.Printf("container status/Names %s/%s\n",container.Status,container.Names)
 		for _, name := range container.Names {
 			if strings.Count(name, "/") == 1 {
 				containerName = name[1:]
 			}
 		}
-	
 		for _, name := range container.Names {
 			nameParts := strings.Split(name, "/")
 			if len(nameParts) > 2 {
-				//fmt.Printf("\t%s to %s\n",containerName,nameParts[1])
+				buffer.WriteString(fmt.Sprintf(" \"%s\" -> \"%s\" [label = \" %s\" ]\n", containerName, nameParts[1], nameParts[len(nameParts)-1]))
-				// source and dest should be primary container names
-				if IsPrimaryContainerName(containerName,PrimaryContainerNames) && IsPrimaryContainerName(nameParts[1],PrimaryContainerNames) {
-
-				   // only create link if none exists already
-				   if _,ok := LinkMap[containerName + "-" + nameParts[1]]; !ok {
-				    LinkMap[containerName + "-" + nameParts[1]] = "exists"
-				    buffer.WriteString(fmt.Sprintf(" \"%s\" -> \"%s\" [label = \" %s\" ]\n", containerName, nameParts[1], nameParts[len(nameParts)-1] ))
-				  }
-				}
 
 			}
 		}
@@ -174,7 +144,7 @@ func jsonContainersToDot(containers *[]Container,OnlyRunning bool) string {
 			containerBackground = "paleturquoise"
 		}
 
-		buffer.WriteString(fmt.Sprintf(" \"%s\" [label=\"%s\\n%s\\n%s\",shape=box,fillcolor=\"%s\",style=\"filled,rounded\"];\n", containerName, container.Image, containerName, truncate(container.Id, 12), containerBackground))
+		buffer.WriteString(fmt.Sprintf(" \"%s\" [label=\"%s\\n%s\",shape=box,fillcolor=\"%s\",style=\"filled,rounded\"];\n", containerName, containerName, truncate(container.Id, 12), containerBackground))
 	}
 
 	buffer.WriteString("}\n")
@@ -182,11 +152,6 @@ func jsonContainersToDot(containers *[]Container,OnlyRunning bool) string {
 	return buffer.String()
 }
 
-func IsPrimaryContainerName(Name string,PrimaryContainerNames map[string]string) bool {
-	_,ok := PrimaryContainerNames[Name]
-	return ok
-}
-
 func init() {
 	parser.AddCommand("containers",
 		"Visualize docker containers.",

go.mod

@@ -1,41 +0,0 @@
-module github.com/justone/dockviz
-
-go 1.19
-
-require (
-	github.com/fsouza/go-dockerclient v1.8.3
-	github.com/jessevdk/go-flags v1.5.0
-)
-
-require (
-	github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 // indirect
-	github.com/Microsoft/go-winio v0.6.0 // indirect
-	github.com/Microsoft/hcsshim v0.9.4 // indirect
-	github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5 // indirect
-	github.com/containerd/cgroups v1.0.4 // indirect
-	github.com/containerd/containerd v1.6.8 // indirect
-	github.com/containerd/continuity v0.3.0 // indirect
-	github.com/docker/docker v20.10.18+incompatible // indirect
-	github.com/docker/go-connections v0.4.0 // indirect
-	github.com/docker/go-units v0.5.0 // indirect
-	github.com/gogo/protobuf v1.3.2 // indirect
-	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
-	github.com/google/go-cmp v0.5.9 // indirect
-	github.com/gotestyourself/gotestyourself v2.2.0+incompatible // indirect
-	github.com/moby/sys/mount v0.3.3 // indirect
-	github.com/moby/sys/mountinfo v0.6.2 // indirect
-	github.com/moby/term v0.0.0-20220808134915-39b0c02b01ae // indirect
-	github.com/morikuni/aec v1.0.0 // indirect
-	github.com/opencontainers/go-digest v1.0.0 // indirect
-	github.com/opencontainers/image-spec v1.1.0-rc1 // indirect
-	github.com/opencontainers/runc v1.1.4 // indirect
-	github.com/opencontainers/selinux v1.10.2 // indirect
-	github.com/pkg/errors v0.9.1 // indirect
-	github.com/sirupsen/logrus v1.9.0 // indirect
-	go.opencensus.io v0.23.0 // indirect
-	golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4 // indirect
-	golang.org/x/net v0.0.0-20220930213112-107f3e3c3b0b // indirect
-	golang.org/x/sys v0.0.0-20220928140112-f11e5e49a4ec // indirect
-	golang.org/x/tools v0.1.12 // indirect
-	gotest.tools v2.2.0+incompatible // indirect
-)

images.go

@@ -26,21 +26,19 @@ type Image struct {
 }
 
 type ImagesCommand struct {
-	Dot           bool `short:"d" long:"dot" description:"Show image information as Graphviz dot. You can add a start image id or name -d/--dot [id/name]"`
+	Dot          bool `short:"d" long:"dot" description:"Show image information as Graphviz dot. You can add a start image id or name -d/--dot [id/name]"`
-	Tree          bool `short:"t" long:"tree" description:"Show image information as tree. You can add a start image id or name -t/--tree [id/name]"`
+	Tree         bool `short:"t" long:"tree" description:"Show image information as tree. You can add a start image id or name -t/--tree [id/name]"`
-	Short         bool `short:"s" long:"short" description:"Show short summary of images (repo name and list of tags)."`
+	Short        bool `short:"s" long:"short" description:"Show short summary of images (repo name and list of tags)."`
-	NoTruncate    bool `short:"n" long:"no-trunc" description:"Don't truncate the image IDs (only works with tree mode)."`
+	NoTruncate   bool `short:"n" long:"no-trunc" description:"Don't truncate the image IDs (only works with tree mode)."`
-	Incremental   bool `short:"i" long:"incremental" description:"Display image size as incremental rather than cumulative."`
+	Incremental  bool `short:"i" long:"incremental" description:"Display image size as incremental rather than cumulative."`
-	OnlyLabelled  bool `short:"l" long:"only-labelled" description:"Print only labelled images/containers."`
+	OnlyLabelled bool `short:"l" long:"only-labelled" description:"Print only labelled images/containers."`
-	ShowCreatedBy bool `long:"show-created-by" description:"Show the image 'CreatedBy' to help identify layers."`
+	NoHuman      bool `short:"c" long:"no-human" description:"Don't humanize the sizes."`
-	NoHuman       bool `short:"c" long:"no-human" description:"Don't humanize the sizes."`
 }
 
 type DisplayOpts struct {
-	NoTruncate    bool
+	NoTruncate  bool
-	Incremental   bool
+	Incremental bool
-	NoHuman       bool
+	NoHuman     bool
-	ShowCreatedBy bool
 }
 
 var imagesCommand ImagesCommand
@@ -158,17 +156,16 @@ func (x *ImagesCommand) Execute(args []string) error {
 			*images, imagesByParent = filterImages(images, &imagesByParent)
 		}
 
-		dispOpts := DisplayOpts{
-			imagesCommand.NoTruncate,
-			imagesCommand.Incremental,
-			imagesCommand.NoHuman,
-			imagesCommand.ShowCreatedBy,
-		}
 		if imagesCommand.Tree {
+			dispOpts := DisplayOpts{
+				imagesCommand.NoTruncate,
+				imagesCommand.Incremental,
+				imagesCommand.NoHuman,
+			}
 			fmt.Print(jsonToTree(roots, imagesByParent, dispOpts))
 		}
 		if imagesCommand.Dot {
-			fmt.Print(jsonToDot(roots, imagesByParent, dispOpts))
+			fmt.Print(jsonToDot(roots, imagesByParent))
 		}
 
 	} else if imagesCommand.Short {
@@ -285,11 +282,11 @@ func jsonToTree(images []Image, byParent map[string][]Image, dispOpts DisplayOpt
 	return buffer.String()
 }
 
-func jsonToDot(roots []Image, byParent map[string][]Image, dispOpts DisplayOpts) string {
+func jsonToDot(roots []Image, byParent map[string][]Image) string {
 	var buffer bytes.Buffer
 
 	buffer.WriteString("digraph docker {\n")
-	imagesToDot(&buffer, roots, byParent, dispOpts)
+	imagesToDot(&buffer, roots, byParent)
 	buffer.WriteString(" base [style=invisible]\n}\n")
 
 	return buffer.String()
@@ -402,12 +399,10 @@ func PrintTreeNode(buffer *bytes.Buffer, image Image, dispOpts DisplayOpts, pref
 
 	buffer.WriteString(fmt.Sprintf("%s%s %s: %s", prefix, imageID, sizeLabel, sizeStr))
 	if image.RepoTags[0] != "<none>:<none>" {
-		buffer.WriteString(fmt.Sprintf(" Tags: %s", strings.Join(image.RepoTags, ", ")))
+		buffer.WriteString(fmt.Sprintf(" Tags: %s\n", strings.Join(image.RepoTags, ", ")))
+	} else {
+		buffer.WriteString(fmt.Sprintf("\n"))
 	}
-	if dispOpts.ShowCreatedBy {
-		buffer.WriteString(fmt.Sprintf(" (%s)", SanitizeCommand(image.CreatedBy, 100)))
-	}
-	buffer.WriteString(fmt.Sprintf("\n"))
 }
 
 func megabytes(bytes int64) float64 {
@@ -462,45 +457,20 @@ func parseImagesJSON(rawJSON []byte) (*[]Image, error) {
 	return &images, nil
 }
 
-func imagesToDot(buffer *bytes.Buffer, images []Image, byParent map[string][]Image, dispOpts DisplayOpts) {
+func imagesToDot(buffer *bytes.Buffer, images []Image, byParent map[string][]Image) {
 	for _, image := range images {
-
 		if image.ParentId == "" {
 			buffer.WriteString(fmt.Sprintf(" base -> \"%s\" [style=invis]\n", truncate(image.Id, 12)))
 		} else {
 			buffer.WriteString(fmt.Sprintf(" \"%s\" -> \"%s\"\n", truncate(image.ParentId, 12), truncate(image.Id, 12)))
 		}
-
 		if image.RepoTags[0] != "<none>:<none>" {
 			buffer.WriteString(fmt.Sprintf(" \"%s\" [label=\"%s\\n%s\",area=%f,shape=box,fillcolor=\"paleturquoise\",style=\"filled,rounded\"];\n", truncate(image.Id, 12), truncate(stripPrefix(image.OrigId), 12), strings.Join(image.RepoTags, "\\n"), megabytes(image.Size)))
 		} else {
-			labelParts := []string{truncate(stripPrefix(image.OrigId), 12)}
+			buffer.WriteString(fmt.Sprintf(" \"%s\" [label=\"%s\",area=%f]\n", truncate(image.Id, 12), truncate(stripPrefix(image.OrigId), 12), megabytes(image.Size)))
-			if dispOpts.ShowCreatedBy {
-				labelParts = append(labelParts, SanitizeCommand(image.CreatedBy, 30))
-			}
-
-			var size int64
-			var sizeLabel string
-			if dispOpts.Incremental {
-				sizeLabel = "Size"
-				size = image.Size
-			} else {
-				sizeLabel = "Virtual Size"
-				size = image.VirtualSize
-			}
-
-			var sizeStr string
-			if dispOpts.NoHuman {
-				sizeStr = strconv.FormatInt(size, 10)
-			} else {
-				sizeStr = humanSize(size)
-			}
-			labelParts = append(labelParts, fmt.Sprintf("%s: %s", sizeLabel, sizeStr))
-
-			buffer.WriteString(fmt.Sprintf(" \"%s\" [label=\"%s\",area=%f]\n", truncate(image.Id, 12), strings.Join(labelParts, "\n"), megabytes(image.Size)))
 		}
 		if subimages, exists := byParent[image.Id]; exists {
-			imagesToDot(buffer, subimages, byParent, dispOpts)
+			imagesToDot(buffer, subimages, byParent)
 		}
 	}
 }
@@ -536,28 +506,6 @@ func jsonToShort(images *[]Image) string {
 	return buffer.String()
 }
 
-func SanitizeCommand(CommandStr string, MaxLength int) string {
-
-	temp := CommandStr
-
-	// remove prefixes that don't add meaning
-	if strings.HasPrefix(temp, "/bin/sh -c") {
-		temp = strings.TrimSpace(temp[10:])
-	}
-	if strings.HasPrefix(temp, "#(nop)") {
-		temp = strings.TrimSpace(temp[6:])
-	}
-
-	// remove double and single quotes which make dot format invalid
-	temp = strings.Replace(temp, "\"", " ", -1)
-	temp = strings.Replace(temp, "'", " ", -1)
-
-	// remove double spaces inside
-	temp = strings.Join(strings.Fields(temp), " ")
-
-	return truncate(temp, MaxLength)
-}
-
 func init() {
 	parser.AddCommand("images",
 		"Visualize docker images.",

release.sh

@@ -1,63 +0,0 @@
-#!/bin/bash
-
-ORG=justone
-NAME=dockviz
-ARCHS="darwin/amd64 linux/amd64 windows/amd64"
-
-set -ex
-
-if [[ ! $(type -P gox) ]]; then
-    echo "Error: gox not found."
-    echo "To fix: run 'go get github.com/mitchellh/gox', and/or add \$GOPATH/bin to \$PATH"
-    exit 1
-fi
-
-if [[ -z $GITHUB_TOKEN ]]; then
-    echo "Error: GITHUB_TOKEN not set."
-    exit 1
-fi
-
-if [[ ! $(type -P github-release) ]]; then
-    echo "Error: github-release not found."
-    exit 1
-fi
-
-VER=$1
-
-if [[ -z $VER ]]; then
-    echo "Need to specify version."
-    exit 1
-fi
-
-PRE_ARG=
-if [[ $VER =~ pre ]]; then
-    PRE_ARG="--pre-release"
-fi
-
-# git tag $VER
-
-echo "Building $VER"
-echo
-
-rm -v ${NAME}* || true
-gox -ldflags "-X main.version=$VER" -osarch="$ARCHS"
-
-echo "* " > desc
-echo "" >> desc
-
-echo "\`\`\`" >> desc
-echo "$ sha1sum ${NAME}_*" >> desc
-sha1sum ${NAME}_* >> desc
-echo "$ sha256sum ${NAME}_*" >> desc
-sha256sum ${NAME}_* >> desc
-echo "\`\`\`" >> desc
-
-vi desc
-
-git push --tags
-sleep 2
-
-cat desc | github-release release $PRE_ARG --user ${ORG} --repo ${NAME} --tag $VER --name $VER --description -
-for file in ${NAME}_*; do
-    github-release upload --user ${ORG} --repo ${NAME} --tag $VER --name $file --file $file
-done