func handleGetRelease(s api.FluxService) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
inst := getInstanceID(r)
id := mux.Vars(r)["id"]
job, err := s.GetRelease(inst, jobs.JobID(id))
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
fmt.Fprintf(w, err.Error())
return
}
w.Header().Set("Content-Type", "application/json; charset=utf-8")
if err := json.NewEncoder(w).Encode(job); err != nil {
w.WriteHeader(http.StatusInternalServerError)
fmt.Fprintf(w, err.Error())
return
}
})
}
func (opts *serviceCheckReleaseOpts) RunE(cmd *cobra.Command, args []string) error {
if len(args) != 0 {
return errorWantedNoArgs
}
if opts.releaseID == "" {
return fmt.Errorf("-r, --release-id is required")
}
if opts.noFollow {
job, err := opts.API.GetRelease(noInstanceID, jobs.JobID(opts.releaseID))
if err != nil {
return err
}
buf, err := json.MarshalIndent(job, "", " ")
if err != nil {
return err
}
_, err = os.Stdout.Write(buf)
return err
}
var (
w io.Writer = os.Stdout
stop = func() {}
)
if !opts.noTty && isatty.IsTerminal(os.Stdout.Fd()) {
liveWriter := uilive.New()
liveWriter.Start()
var stopOnce sync.Once
w, stop = liveWriter, func() { stopOnce.Do(liveWriter.Stop) }
}
var (
job jobs.Job
err error
prevStatus string
lastHeartbeatDatabase time.Time
lastHeartbeatLocal = time.Now()
retryCount = 0
lastSucceeded = time.Now()
)
for range time.Tick(time.Second) {
if retryCount > 0 {
fmt.Fprintf(w, "Last status (%s): %s\n", lastSucceeded.Format(time.Kitchen), prevStatus)
fmt.Fprintf(w, "Service unavailable. Retrying (#%d) ...\n", retryCount)
}
job, err = opts.API.GetRelease(noInstanceID, jobs.JobID(opts.releaseID))
if err != nil {
if err, ok := errors.Cause(err).(*transport.APIError); ok && err.IsUnavailable() {
if time.Since(lastSucceeded) > retryTimeout {
stop()
fmt.Fprintln(os.Stdout, "Giving up; you can try again with")
fmt.Fprintf(os.Stdout, " fluxctl check-release -r %s\n", opts.releaseID)
fmt.Fprintln(os.Stdout)
break
}
retryCount++
continue
}
fmt.Fprintf(w, "Status: error querying release.\n") // error will get printed below
break
}
lastSucceeded = time.Now()
retryCount = 0
status := "Waiting for job to be claimed..."
if job.Status != "" {
status = job.Status
}
// Checking heartbeat is a bit tricky. We get a timestamp in database
// time, which may be radically different to our time. I've chosen to
// check liveness by marking local time whenever the heartbeat time
// changes. Going long enough without updating that local timestamp
// triggers the warning.
if !job.Claimed.IsZero() {
if job.Heartbeat != lastHeartbeatDatabase {
lastHeartbeatDatabase = job.Heartbeat
lastHeartbeatLocal = time.Now()
}
if delta := time.Since(lastHeartbeatLocal); delta > largestHeartbeatDelta {
status += fmt.Sprintf(" -- no heartbeat in %s; worker may have crashed", delta)
}
}
if status != prevStatus {
fmt.Fprintf(w, "Status: %s\n", status)
}
prevStatus = status
if job.Done {
break
}
}
stop()
if err != nil {
return err
}
spec := job.Params.(jobs.ReleaseJobParams)
fmt.Fprintf(os.Stdout, "\n")
if !job.Success {
fmt.Fprintf(os.Stdout, "Here's as far as we got:\n")
} else if spec.Kind == flux.ReleaseKindPlan {
fmt.Fprintf(os.Stdout, "Here's the plan:\n")
} else {
fmt.Fprintf(os.Stdout, "Here's what happened:\n")
}
for i, msg := range job.Log {
fmt.Fprintf(os.Stdout, " %d) %s\n", i+1, msg)
}
if spec.Kind == flux.ReleaseKindExecute {
fmt.Fprintf(os.Stdout, "Took %s\n", job.Finished.Sub(job.Submitted))
}
return nil
}