From 9eb88ea474c3f6160090573c4bae3fe4c5ece016 Mon Sep 17 00:00:00 2001 From: cdoern Date: Tue, 18 Jan 2022 15:46:11 -0500 Subject: Podman pod create --share-parent vs --share=cgroup separated cgroupNS sharing from setting the pod as the cgroup parent, made a new flag --share-parent which sets the pod as the cgroup parent for all containers entering the pod remove cgroup from the default kernel namespaces since we want the same default behavior as before which is just the cgroup parent. resolves #12765 Signed-off-by: cdoern Signed-off-by: cdoern Signed-off-by: cdoern --- cmd/podman/pods/create.go | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'cmd') diff --git a/cmd/podman/pods/create.go b/cmd/podman/pods/create.go index 5d8a5aeab..8222ec8e2 100644 --- a/cmd/podman/pods/create.go +++ b/cmd/podman/pods/create.go @@ -17,6 +17,7 @@ import ( "github.com/containers/podman/v4/cmd/podman/parse" "github.com/containers/podman/v4/cmd/podman/registry" "github.com/containers/podman/v4/cmd/podman/validate" + "github.com/containers/podman/v4/libpod/define" "github.com/containers/podman/v4/pkg/domain/entities" "github.com/containers/podman/v4/pkg/errorhandling" "github.com/containers/podman/v4/pkg/specgen" @@ -52,6 +53,7 @@ var ( podIDFile string replace bool share string + shareParent bool ) func init() { @@ -88,6 +90,9 @@ func init() { flags.StringVar(&share, shareFlagName, specgen.DefaultKernelNamespaces, "A comma delimited list of kernel namespaces the pod will share") _ = createCommand.RegisterFlagCompletionFunc(shareFlagName, common.AutocompletePodShareNamespace) + shareParentFlagName := "share-parent" + flags.BoolVar(&shareParent, shareParentFlagName, true, "Set the pod's cgroup as the cgroup parent for all containers joining the pod") + flags.SetNormalizeFunc(aliasNetworkFlag) } @@ -147,7 +152,11 @@ func create(cmd *cobra.Command, args []string) error { if err != nil { return err } + if strings.Contains(share, "cgroup") && shareParent { + return errors.Wrapf(define.ErrInvalidArg, "cannot define the pod as the cgroup parent at the same time as joining the infra container's cgroupNS") + } createOptions.Share = strings.Split(share, ",") + createOptions.ShareParent = &shareParent if cmd.Flag("infra-command").Changed { // Only send content to server side if user changed defaults cmdIn, err := cmd.Flags().GetString("infra-command") -- cgit v1.2.3-54-g00ecf