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authorBrent Baude <bbaude@redhat.com>2020-04-16 12:25:26 -0500
committerBrent Baude <bbaude@redhat.com>2020-04-16 15:53:58 -0500
commit241326a9a8c20ad7f2bcf651416b836e7778e090 (patch)
tree4001e8e47a022bb1b9bfbf2332c42e1aeb802f9e /cmd/podman/pods/create.go
parent88c6fd06cd54fb9a8826306dfdf1a77e400de5de (diff)
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Podman V2 birth
remote podman v1 and replace with podman v2. Signed-off-by: Brent Baude <bbaude@redhat.com>
Diffstat (limited to 'cmd/podman/pods/create.go')
-rw-r--r--cmd/podman/pods/create.go147
1 files changed, 147 insertions, 0 deletions
diff --git a/cmd/podman/pods/create.go b/cmd/podman/pods/create.go
new file mode 100644
index 000000000..63dab4707
--- /dev/null
+++ b/cmd/podman/pods/create.go
@@ -0,0 +1,147 @@
+package pods
+
+import (
+ "context"
+ "fmt"
+ "os"
+ "strings"
+
+ "github.com/containers/libpod/cmd/podman/common"
+ "github.com/containers/libpod/cmd/podman/parse"
+ "github.com/containers/libpod/cmd/podman/registry"
+ "github.com/containers/libpod/libpod/define"
+ "github.com/containers/libpod/pkg/domain/entities"
+ "github.com/containers/libpod/pkg/errorhandling"
+ "github.com/containers/libpod/pkg/specgen"
+ "github.com/containers/libpod/pkg/util"
+ "github.com/pkg/errors"
+ "github.com/spf13/cobra"
+)
+
+var (
+ podCreateDescription = `After creating the pod, the pod ID is 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'.`
+
+ createCommand = &cobra.Command{
+ Use: "create",
+ Args: cobra.NoArgs,
+ Short: "Create a new empty pod",
+ Long: podCreateDescription,
+ RunE: create,
+ }
+)
+
+var (
+ createOptions entities.PodCreateOptions
+ labels, labelFile []string
+ podIDFile string
+ share string
+)
+
+func init() {
+ registry.Commands = append(registry.Commands, registry.CliCommand{
+ Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
+ Command: createCommand,
+ Parent: podCmd,
+ })
+ flags := createCommand.Flags()
+ flags.SetInterspersed(false)
+ flags.AddFlagSet(common.GetNetFlags())
+ flags.StringVar(&createOptions.CGroupParent, "cgroup-parent", "", "Set parent cgroup for the pod")
+ flags.BoolVar(&createOptions.Infra, "infra", true, "Create an infra container associated with the pod to share namespaces with")
+ flags.StringVar(&createOptions.InfraImage, "infra-image", define.DefaultInfraImage, "The image of the infra container to associate with the pod")
+ flags.StringVar(&createOptions.InfraCommand, "infra-command", define.DefaultInfraCommand, "The command to run on the infra container when the pod is started")
+ flags.StringSliceVar(&labelFile, "label-file", []string{}, "Read in a line delimited file of labels")
+ flags.StringSliceVarP(&labels, "label", "l", []string{}, "Set metadata on pod (default [])")
+ flags.StringVarP(&createOptions.Name, "name", "n", "", "Assign a name to the pod")
+ flags.StringVarP(&createOptions.Hostname, "hostname", "", "", "Set a hostname to the pod")
+ flags.StringVar(&podIDFile, "pod-id-file", "", "Write the pod ID to the file")
+ flags.StringVar(&share, "share", common.DefaultKernelNamespaces, "A comma delimited list of kernel namespaces the pod will share")
+}
+
+func create(cmd *cobra.Command, args []string) error {
+ var (
+ err error
+ podIdFile *os.File
+ )
+ createOptions.Labels, err = parse.GetAllLabels(labelFile, labels)
+ if err != nil {
+ return errors.Wrapf(err, "unable to process labels")
+ }
+
+ if !createOptions.Infra && cmd.Flag("share").Changed && share != "none" && share != "" {
+ return errors.Errorf("You cannot share kernel namespaces on the pod level without an infra container")
+ }
+ createOptions.Share = strings.Split(share, ",")
+ if cmd.Flag("pod-id-file").Changed {
+ podIdFile, err = util.OpenExclusiveFile(podIDFile)
+ if err != nil && os.IsExist(err) {
+ return errors.Errorf("pod id file exists. Ensure another pod is not using it or delete %s", podIDFile)
+ }
+ if err != nil {
+ return errors.Errorf("error opening pod-id-file %s", podIDFile)
+ }
+ defer errorhandling.CloseQuiet(podIdFile)
+ defer errorhandling.SyncQuiet(podIdFile)
+ }
+
+ createOptions.Net, err = common.NetFlagsToNetOptions(cmd)
+ if err != nil {
+ return err
+ }
+ netInput, err := cmd.Flags().GetString("network")
+ if err != nil {
+ return err
+ }
+ n := specgen.Namespace{}
+ switch netInput {
+ case "bridge":
+ n.NSMode = specgen.Bridge
+ case "host":
+ n.NSMode = specgen.Host
+ case "slip4netns":
+ n.NSMode = specgen.Slirp
+ default:
+ if strings.HasPrefix(netInput, "container:") { //nolint
+ split := strings.Split(netInput, ":")
+ if len(split) != 2 {
+ return errors.Errorf("invalid network paramater: %q", netInput)
+ }
+ n.NSMode = specgen.FromContainer
+ n.Value = split[1]
+ } else if strings.HasPrefix(netInput, "ns:") {
+ return errors.New("the ns: network option is not supported for pods")
+ } else {
+ n.NSMode = specgen.Bridge
+ createOptions.Net.CNINetworks = strings.Split(netInput, ",")
+ }
+ }
+ if len(createOptions.Net.PublishPorts) > 0 {
+ if !createOptions.Infra {
+ return errors.Errorf("you must have an infra container to publish port bindings to the host")
+ }
+ }
+
+ if !createOptions.Infra {
+ if cmd.Flag("infra-command").Changed {
+ return errors.New("cannot set infra-command without an infra container")
+ }
+ createOptions.InfraCommand = ""
+ if cmd.Flag("infra-image").Changed {
+ return errors.New("cannot set infra-image without an infra container")
+ }
+ createOptions.InfraImage = ""
+ if cmd.Flag("share").Changed {
+ return errors.New("cannot set share namespaces without an infra container")
+ }
+ createOptions.Share = nil
+ }
+
+ response, err := registry.ContainerEngine().PodCreate(context.Background(), createOptions)
+ if err != nil {
+ return err
+ }
+ fmt.Println(response.Id)
+ return nil
+}