forked from coreos/fleet
/
unload.go
59 lines (48 loc) · 1.44 KB
/
unload.go
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package main
import (
"fmt"
"os"
log "github.com/coreos/fleet/Godeps/_workspace/src/github.com/golang/glog"
"github.com/coreos/fleet/job"
)
var (
cmdUnloadUnit = &Command{
Name: "unload",
Summary: "Unschedule one or more units in the cluster.",
Usage: "UNIT...",
Run: runUnloadUnit,
}
)
func init() {
cmdUnloadUnit.Flags.IntVar(&sharedFlags.BlockAttempts, "block-attempts", 0, "Wait until the jobs are inactive, performing up to N attempts before giving up. A value of 0 indicates no limit.")
cmdUnloadUnit.Flags.BoolVar(&sharedFlags.NoBlock, "no-block", false, "Do not wait until the jobs have become inactive before exiting.")
}
func runUnloadUnit(args []string) (exit int) {
jobs, err := findJobs(args)
if err != nil {
fmt.Fprintf(os.Stderr, "%v\n", err)
return 1
}
wait := make([]string, 0)
for _, j := range jobs {
if j.State == nil {
fmt.Fprintf(os.Stderr, "Unable to determine state of %q\n", *(j.State))
return 1
}
if *(j.State) == job.JobStateInactive {
log.V(1).Infof("Job(%s) already %s, skipping.", j.Name, job.JobStateInactive)
continue
}
log.V(1).Infof("Unloading Job(%s)", j.Name)
cAPI.SetJobTargetState(j.Name, job.JobStateInactive)
wait = append(wait, j.Name)
}
if !sharedFlags.NoBlock {
errchan := waitForJobStates(wait, job.JobStateInactive, sharedFlags.BlockAttempts, os.Stdout)
for err := range errchan {
fmt.Fprintf(os.Stderr, "%v\n", err)
exit = 1
}
}
return
}