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Diffstat (limited to 'cmd/podman/pod_create.go')
-rw-r--r-- | cmd/podman/pod_create.go | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/cmd/podman/pod_create.go b/cmd/podman/pod_create.go new file mode 100644 index 000000000..9bbc60d4d --- /dev/null +++ b/cmd/podman/pod_create.go @@ -0,0 +1,117 @@ +package main + +import ( + "fmt" + "os" + + "github.com/pkg/errors" + "github.com/projectatomic/libpod/cmd/podman/libpodruntime" + "github.com/projectatomic/libpod/libpod" + "github.com/sirupsen/logrus" + "github.com/urfave/cli" +) + +var podCreateDescription = "Creates a new empty pod. The pod ID is then" + + " printed to stdout. You can then start it at any time with the" + + " podman pod start <pod_id> command. The pod will be created with the" + + " initial state 'created'." + +var podCreateFlags = []cli.Flag{ + cli.BoolTFlag{ + Name: "cgroup-to-ctr", + Usage: "Tells containers in this pod to use the cgroup created for the pod", + }, + cli.StringFlag{ + Name: "cgroup-parent", + Usage: "Optional parent cgroup for the pod", + }, + cli.StringSliceFlag{ + Name: "label-file", + Usage: "Read in a line delimited file of labels (default [])", + }, + cli.StringSliceFlag{ + Name: "label, l", + Usage: "Set metadata on pod (default [])", + }, + cli.StringFlag{ + Name: "name, n", + Usage: "Assign a name to the pod", + }, + cli.StringFlag{ + Name: "pod-id-file", + Usage: "Write the pod ID to the file", + }, +} + +var podCreateCommand = cli.Command{ + Name: "create", + Usage: "create but do not start a pod", + Description: podCreateDescription, + Flags: podCreateFlags, + Action: podCreateCmd, + SkipArgReorder: true, + UseShortOptionHandling: true, +} + +func podCreateCmd(c *cli.Context) error { + var options []libpod.PodCreateOption + var err error + + if err = validateFlags(c, createFlags); err != nil { + return err + } + + runtime, err := libpodruntime.GetRuntime(c) + if err != nil { + return errors.Wrapf(err, "error creating libpod runtime") + } + defer runtime.Shutdown(false) + + if c.IsSet("pod-id-file") { + if _, err = os.Stat(c.String("pod-id-file")); err == nil { + return errors.Errorf("pod id file exists. ensure another pod is not using it or delete %s", c.String("pod-id-file")) + } + if err = libpod.WriteFile("", c.String("pod-id-file")); err != nil { + return errors.Wrapf(err, "unable to write pod id file %s", c.String("pod-id-file")) + } + } + // BEGIN GetPodCreateOptions + + // TODO make sure this is correct usage + if c.IsSet("cgroup-parent") { + options = append(options, libpod.WithPodCgroupParent(c.String("cgroup-parent"))) + } + + if c.Bool("cgroup-to-ctr") { + options = append(options, libpod.WithPodCgroups()) + } + // LABEL VARIABLES + // TODO make sure this works as expected + labels, err := getAllLabels(c.StringSlice("label-file"), c.StringSlice("label")) + if err != nil { + return errors.Wrapf(err, "unable to process labels") + } + if len(labels) != 0 { + options = append(options, libpod.WithPodLabels(labels)) + } + + if c.IsSet("name") { + options = append(options, libpod.WithPodName(c.String("name"))) + } + + pod, err := runtime.NewPod(options...) + if err != nil { + return err + } + + if c.IsSet("pod-id-file") { + err = libpod.WriteFile(pod.ID(), c.String("pod-id-file")) + if err != nil { + logrus.Error(err) + } + } + + fmt.Printf("%s\n", pod.ID()) + + return nil +} |