func OnInfo(imageRef string) {
fmt.Println("docker-slim: [info] image=", imageRef)
client, _ := docker.NewClientFromEnv()
imageInspector, err := image.NewInspector(client, imageRef)
utils.FailOn(err)
log.Info("docker-slim: inspecting 'fat' image metadata...")
err = imageInspector.Inspect()
utils.FailOn(err)
_, artifactLocation := utils.PrepareSlimDirs(imageInspector.ImageInfo.ID)
imageInspector.ArtifactLocation = artifactLocation
log.Infof("docker-slim: [%v] 'fat' image size => %v (%v)\n",
imageInspector.ImageInfo.ID,
imageInspector.ImageInfo.VirtualSize,
humanize.Bytes(uint64(imageInspector.ImageInfo.VirtualSize)))
log.Info("docker-slim: processing 'fat' image info...")
err = imageInspector.ProcessCollectedData()
utils.FailOn(err)
fmt.Println("docker-slim: [info] done.")
}
func OnBuild(imageRef string, doHttpProbe bool, doRmFileArtifacts bool) {
fmt.Printf("docker-slim: [build] image=%v http-probe=%v remove-file-artifacts=%v\n",
imageRef, doHttpProbe, doRmFileArtifacts)
client, _ := docker.NewClientFromEnv()
imageInspector, err := image.NewInspector(client, imageRef)
utils.FailOn(err)
log.Info("docker-slim: inspecting 'fat' image metadata...")
err = imageInspector.Inspect()
utils.FailOn(err)
localVolumePath, artifactLocation := utils.PrepareSlimDirs(imageInspector.ImageInfo.ID)
imageInspector.ArtifactLocation = artifactLocation
log.Infof("docker-slim: [%v] 'fat' image size => %v (%v)\n",
imageInspector.ImageInfo.ID,
imageInspector.ImageInfo.VirtualSize,
humanize.Bytes(uint64(imageInspector.ImageInfo.VirtualSize)))
log.Info("docker-slim: processing 'fat' image info...")
err = imageInspector.ProcessCollectedData()
utils.FailOn(err)
containerInspector, err := container.NewInspector(client, imageInspector, localVolumePath)
utils.FailOn(err)
log.Info("docker-slim: starting instrumented 'fat' container...")
err = containerInspector.RunContainer()
utils.FailOn(err)
log.Info("docker-slim: watching container monitor...")
if doHttpProbe {
probe, err := http.NewRootProbe(containerInspector)
utils.FailOn(err)
probe.Start()
}
fmt.Println("docker-slim: press any key when you are done using the container...")
creader := bufio.NewReader(os.Stdin)
_, _, _ = creader.ReadLine()
containerInspector.FinishMonitoring()
log.Info("docker-slim: shutting down 'fat' container...")
err = containerInspector.ShutdownContainer()
utils.WarnOn(err)
log.Info("docker-slim: processing instrumented 'fat' container info...")
err = containerInspector.ProcessCollectedData()
utils.FailOn(err)
log.Info("docker-slim: building 'slim' image...")
builder, err := builder.NewImageBuilder(client, imageInspector.SlimImageRepo, imageInspector.ImageInfo, artifactLocation)
utils.FailOn(err)
err = builder.Build()
utils.FailOn(err)
log.Infoln("docker-slim: created new image:", builder.RepoName)
if doRmFileArtifacts {
log.Info("docker-slim: removing temporary artifacts...")
err = utils.RemoveArtifacts(artifactLocation) //TODO: remove only the "files" subdirectory
utils.WarnOn(err)
}
fmt.Println("docker-slim: [build] done.")
}