84 lines
1.5 KiB
Go
84 lines
1.5 KiB
Go
// +build linux
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package main
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"text/tabwriter"
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"time"
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"github.com/Sirupsen/logrus"
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"github.com/codegangsta/cli"
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)
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var listCommand = cli.Command{
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Name: "list",
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Usage: "lists containers started by runc with the given root",
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Action: func(context *cli.Context) {
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// preload the container factory
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if factory == nil {
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err := factoryPreload(context)
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if err != nil {
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logrus.Fatal(err)
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return
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}
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}
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// get the list of containers
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root := context.GlobalString("root")
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absRoot, err := filepath.Abs(root)
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if err != nil {
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logrus.Fatal(err)
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return
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}
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list, err := ioutil.ReadDir(absRoot)
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w := tabwriter.NewWriter(os.Stdout, 12, 1, 3, ' ', 0)
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fmt.Fprint(w, "ID\tPID\tSTATUS\tCREATED\n")
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// output containers
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for _, item := range list {
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switch {
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case !item.IsDir():
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// do nothing with misc files in the containers directory
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case item.IsDir():
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outputListInfo(item.Name(), w)
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}
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}
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if err := w.Flush(); err != nil {
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logrus.Fatal(err)
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}
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},
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}
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func outputListInfo(id string, w *tabwriter.Writer) {
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container, err := factory.Load(id)
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if err != nil {
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logrus.Fatal(err)
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return
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}
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containerStatus, err := container.Status()
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if err != nil {
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logrus.Fatal(err)
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return
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}
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state, err := container.State()
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if err != nil {
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logrus.Fatal(err)
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return
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}
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fmt.Fprintf(w, "%s\t%d\t%s\t%s\n", container.ID(),
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state.BaseState.InitProcessPid,
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containerStatus.String(),
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state.BaseState.CreatedTime.Format(time.RFC3339Nano))
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}
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