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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| package killall | ||
|
|
||
| import ( | ||
| "strconv" | ||
| "sync" | ||
|
|
||
| "github.com/USTC-vlab/vct/pkg/cgroup" | ||
| "github.com/USTC-vlab/vct/pkg/pve" | ||
| "github.com/spf13/cobra" | ||
| ) | ||
|
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| func killWorker(ch <-chan string, errCh chan<- error, wg *sync.WaitGroup) { | ||
| defer wg.Done() | ||
| for id := range ch { | ||
| cmd := pve.Stop(id) | ||
| if err := cmd.Run(); err != nil { | ||
| errCh <- err | ||
| } | ||
| } | ||
| } | ||
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| func killallMain(n int, minID int) error { | ||
| ch := make(chan string) | ||
| chErr := make(chan error) | ||
| wg := &sync.WaitGroup{} | ||
| wg.Add(n) | ||
| for i := 0; i < n; i++ { | ||
| go killWorker(ch, chErr, wg) | ||
| } | ||
| defer func() { | ||
| close(ch) | ||
| wg.Wait() | ||
| close(chErr) | ||
| }() | ||
| // discard errors for now | ||
| go func() { | ||
| for range chErr { | ||
| } | ||
| }() | ||
|
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| ids, err := cgroup.ListLXC() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| for _, id := range ids { | ||
| numID, err := strconv.Atoi(id) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if numID < minID { | ||
| continue | ||
| } | ||
| ch <- id | ||
| } | ||
| return nil | ||
| } | ||
|
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| func MakeCmd() *cobra.Command { | ||
| cmd := &cobra.Command{ | ||
| Use: "killall", | ||
| Short: "Kill all running containers", | ||
| Args: cobra.NoArgs, | ||
| } | ||
| flags := cmd.Flags() | ||
| pN := flags.IntP("n", "n", 5, "max number of parallel killing containers") | ||
| pS := flags.IntP("min", "m", 1000, "minimum ID of containers to kill") | ||
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| cmd.RunE = func(cmd *cobra.Command, args []string) error { | ||
| return killallMain(*pN, *pS) | ||
| } | ||
| return cmd | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| package pve | ||
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| import "os/exec" | ||
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| const PctPath = "/usr/sbin/pct" | ||
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| func Pct(args ...string) *exec.Cmd { | ||
| return exec.Command(PctPath, args...) | ||
| } | ||
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| func Stop(vmid string) *exec.Cmd { | ||
| return Pct("stop", vmid) | ||
| } |