func runList(cmd *cobra.Command, args []string) int {
var errors []error
tabBuffer := new(bytes.Buffer)
tabOut := getTabOutWithWriter(tabBuffer)
if !flagNoLegend && flagFormat == outputFormatTabbed {
if flagFullOutput {
fmt.Fprintf(tabOut, "UUID\tAPP\tIMAGE NAME\tIMAGE ID\tSTATE\tCREATED\tSTARTED\tNETWORKS\n")
} else {
fmt.Fprintf(tabOut, "UUID\tAPP\tIMAGE NAME\tSTATE\tCREATED\tSTARTED\tNETWORKS\n")
}
}
var pods []*lib.Pod
if err := pkgPod.WalkPods(getDataDir(), pkgPod.IncludeMostDirs, func(p *pkgPod.Pod) {
if flagFormat != outputFormatTabbed {
pod, err := lib.NewPodFromInternalPod(p)
if err != nil {
errors = append(errors, err)
} else {
pods = append(pods, pod)
}
return
}
var pm schema.PodManifest
var err error
if p.PodManifestAvailable() {
// TODO(vc): we should really hold a shared lock here to prevent gc of the pod
_, manifest, err := p.PodManifest()
if err != nil {
errors = append(errors, newPodListReadError(p, err))
return
}
pm = *manifest
}
type printedApp struct {
uuid string
appName string
imgName string
imgID string
state string
nets string
created string
started string
}
var appsToPrint []printedApp
uuid := p.UUID.String()
state := p.State()
nets := fmtNets(p.Nets)
created, err := p.CreationTime()
if err != nil {
errors = append(errors, errwrap.Wrap(fmt.Errorf("unable to get creation time for pod %q", uuid), err))
}
var createdStr string
if flagFullOutput {
createdStr = created.Format(defaultTimeLayout)
} else {
createdStr = humanize.Time(created)
}
started, err := p.StartTime()
if err != nil {
errors = append(errors, errwrap.Wrap(fmt.Errorf("unable to get start time for pod %q", uuid), err))
}
var startedStr string
if !started.IsZero() {
if flagFullOutput {
startedStr = started.Format(defaultTimeLayout)
} else {
startedStr = humanize.Time(started)
}
}
if !flagFullOutput {
uuid = uuid[:8]
}
if len(pm.Apps) == 0 {
appsToPrint = append(appsToPrint, printedApp{
uuid: uuid,
appName: "-",
imgName: "-",
imgID: "-",
state: state,
nets: nets,
created: createdStr,
started: startedStr,
})
}
for _, app := range pm.Apps {
imageName, err := getImageName(p, app.Name)
if err != nil {
errors = append(errors, newPodListLoadImageManifestError(p, err))
imageName = "--"
}
var imageID string
if flagFullOutput {
imageID = app.Image.ID.String()[:19]
}
appsToPrint = append(appsToPrint, printedApp{
uuid: uuid,
appName: app.Name.String(),
imgName: imageName,
imgID: imageID,
state: state,
nets: nets,
created: createdStr,
started: startedStr,
})
// clear those variables so they won't be
// printed for another apps in the pod as they
// are actually describing a pod, not an app
uuid = ""
state = ""
nets = ""
createdStr = ""
startedStr = ""
}
// if we reached that point, then it means that the
// pod and all its apps are valid, so they can be
// printed
for _, app := range appsToPrint {
if flagFullOutput {
fmt.Fprintf(tabOut, "%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n", app.uuid, app.appName, app.imgName, app.imgID, app.state, app.created, app.started, app.nets)
} else {
fmt.Fprintf(tabOut, "%s\t%s\t%s\t%s\t%s\t%s\t%s\n", app.uuid, app.appName, app.imgName, app.state, app.created, app.started, app.nets)
}
}
}); err != nil {
stderr.PrintE("failed to get pod handles", err)
return 254
}
switch flagFormat {
case outputFormatTabbed:
tabOut.Flush()
stdout.Print(tabBuffer)
case outputFormatJSON:
result, err := json.Marshal(pods)
if err != nil {
stderr.PrintE("error marshaling the pods", err)
return 254
}
stdout.Print(string(result))
case outputFormatPrettyJSON:
result, err := json.MarshalIndent(pods, "", "\t")
if err != nil {
stderr.PrintE("error marshaling the pods", err)
return 254
}
stdout.Print(string(result))
}
if len(errors) > 0 {
printErrors(errors, "listing pods")
}
return 0
}
// printStatus prints the pod's pid and per-app status codes
func printStatus(p *pkgPod.Pod) error {
if flagFormat != outputFormatTabbed {
pod, err := lib.NewPodFromInternalPod(p)
if err != nil {
return fmt.Errorf("error converting pod: %v", err)
}
switch flagFormat {
case outputFormatJSON:
result, err := json.Marshal(pod)
if err != nil {
return fmt.Errorf("error marshaling the pod: %v", err)
}
stdout.Print(string(result))
case outputFormatPrettyJSON:
result, err := json.MarshalIndent(pod, "", "\t")
if err != nil {
return fmt.Errorf("error marshaling the pod: %v", err)
}
stdout.Print(string(result))
}
return nil
}
state := p.State()
stdout.Printf("state=%s", state)
created, err := p.CreationTime()
if err != nil {
return fmt.Errorf("unable to get creation time for pod %q: %v", p.UUID, err)
}
createdStr := created.Format(defaultTimeLayout)
stdout.Printf("created=%s", createdStr)
started, err := p.StartTime()
if err != nil {
return fmt.Errorf("unable to get start time for pod %q: %v", p.UUID, err)
}
var startedStr string
if !started.IsZero() {
startedStr = started.Format(defaultTimeLayout)
stdout.Printf("started=%s", startedStr)
}
if state == pkgPod.Running {
stdout.Printf("networks=%s", fmtNets(p.Nets))
}
if state == pkgPod.Running || state == pkgPod.Deleting || state == pkgPod.ExitedDeleting || state == pkgPod.Exited || state == pkgPod.ExitedGarbage {
var pid int
pidCh := make(chan int, 1)
// Wait slightly because the pid file might not be written yet when the state changes to 'Running'.
go func() {
for {
pid, err := p.Pid()
if err == nil {
pidCh <- pid
return
}
time.Sleep(time.Millisecond * 100)
}
}()
select {
case pid = <-pidCh:
case <-time.After(time.Second):
return fmt.Errorf("unable to get PID for pod %q: %v", p.UUID, err)
}
stdout.Printf("pid=%d\nexited=%t", pid, (state == pkgPod.Exited || state == pkgPod.ExitedGarbage))
if state != pkgPod.Running {
stats, err := getExitStatuses(p)
if err != nil {
return fmt.Errorf("unable to get exit statuses for pod %q: %v", p.UUID, err)
}
for app, stat := range stats {
stdout.Printf("app-%s=%d", app, stat)
}
}
}
return nil
}