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added truncated command and size to make up for idea that since Docker 1.10 content addressability there is usually <missing> id

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This commit is contained in:
fabianlee 2017-05-22 01:55:01 +00:00
parent ff917a13b1
commit 18ad950cd1
1 changed files with 25 additions and 1 deletions
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26
images.go
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@ -2,6 +2,7 @@ package main
import (
"github.com/fsouza/go-dockerclient"
"github.com/dustin/go-humanize"
"bytes"
"crypto/sha256"
@ -455,6 +456,7 @@ func parseImagesJSON(rawJSON []byte) (*[]Image, error) {
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 {
@ -463,7 +465,11 @@ func imagesToDot(buffer *bytes.Buffer, images []Image, byParent map[string][]Ima
if image.RepoTags[0] != "<none>:<none>" {
buffer.WriteString(fmt.Sprintf(" \"%s\" [label=\"%s\\n%s\",shape=box,fillcolor=\"paleturquoise\",style=\"filled,rounded\"];\n", truncate(image.Id, 12), truncate(stripPrefix(image.OrigId), 12), strings.Join(image.RepoTags, "\\n")))
} else {
buffer.WriteString(fmt.Sprintf(" \"%s\" [label=\"%s\"]\n", truncate(image.Id, 12), truncate(stripPrefix(image.OrigId), 12)))
// show partial command and size to make up for
// the fact that since Docker 1.10 content addressing
// image ids are usually empty and report as <missing>
SanitizedCommand := SanitizeCommand(image.CreatedBy,24)
buffer.WriteString(fmt.Sprintf(" \"%s\" [label=\"%s\"]\n", truncate(image.Id, 12), truncate(stripPrefix(image.OrigId), 12)+ "\n" + SanitizedCommand + "\n" + humanize.Bytes(uint64(image.Size)) ))
}
if subimages, exists := byParent[image.Id]; exists {
imagesToDot(buffer, subimages, byParent)
@ -502,6 +508,24 @@ func jsonToShort(images *[]Image) string {
return buffer.String()
}
func SanitizeCommand(CommandStr string,MaxLength int) string {
temp := CommandStr
if(strings.HasPrefix(temp,"/bin/sh -c")) {
temp = strings.TrimSpace(temp[10:])
}
if(strings.HasPrefix(temp,"#(nop)")) {
temp = strings.TrimSpace(temp[6:])
}
temp = strings.Replace(temp,"\\"," ",-1)
temp = strings.Replace(temp,"\""," ",-1)
temp = strings.Replace(temp,"'"," ",-1)
//temp = strings.Replace(temp,"[","(",-1)
//temp = strings.Replace(temp,"]",")",-1)
return truncate(temp,MaxLength)
}
func init() {
parser.AddCommand("images",
"Visualize docker images.",