diff options
| -rwxr-xr-x | API.md | 5 | ||||
| -rw-r--r-- | cmd/podman/varlink/io.podman.varlink | 3 | ||||
| -rw-r--r-- | pkg/varlinkapi/containers.go | 9 |
3 files changed, 17 insertions, 0 deletions
@@ -265,6 +265,8 @@ in the [API.md](https://github.com/containers/libpod/blob/master/API.md) file in [error ErrCtrStopped](#ErrCtrStopped) +[error ErrRequiresCgroupsV2ForRootless](#ErrRequiresCgroupsV2ForRootless) + [error ErrorOccurred](#ErrorOccurred) [error ImageNotFound](#ImageNotFound) @@ -2006,6 +2008,9 @@ ContainerNotFound means the container could not be found by the provided name or ### <a name="ErrCtrStopped"></a>type ErrCtrStopped Container is already stopped +### <a name="ErrRequiresCgroupsV2ForRootless"></a>type ErrRequiresCgroupsV2ForRootless + +This function requires CGroupsV2 to run in rootless mode. ### <a name="ErrorOccurred"></a>type ErrorOccurred ErrorOccurred is a generic error for an error that occurs during the execution. The actual error message diff --git a/cmd/podman/varlink/io.podman.varlink b/cmd/podman/varlink/io.podman.varlink index b867dccc1..4a4c97e99 100644 --- a/cmd/podman/varlink/io.podman.varlink +++ b/cmd/podman/varlink/io.podman.varlink @@ -1277,3 +1277,6 @@ error WantsMoreRequired (reason: string) # Container is already stopped error ErrCtrStopped (id: string) + +# This function requires CGroupsV2 to run in rootless mode. +error ErrRequiresCgroupsV2ForRootless(reason: string)
\ No newline at end of file diff --git a/pkg/varlinkapi/containers.go b/pkg/varlinkapi/containers.go index bb66ff962..c7aa5233f 100644 --- a/pkg/varlinkapi/containers.go +++ b/pkg/varlinkapi/containers.go @@ -19,6 +19,8 @@ import ( "github.com/containers/libpod/libpod/define" "github.com/containers/libpod/libpod/logs" "github.com/containers/libpod/pkg/adapter/shortcuts" + "github.com/containers/libpod/pkg/cgroups" + "github.com/containers/libpod/pkg/rootless" "github.com/containers/libpod/pkg/varlinkapi/virtwriter" "github.com/containers/storage/pkg/archive" "github.com/pkg/errors" @@ -317,6 +319,13 @@ func (i *LibpodAPI) ExportContainer(call iopodman.VarlinkCall, name, outPath str // GetContainerStats ... func (i *LibpodAPI) GetContainerStats(call iopodman.VarlinkCall, name string) error { + cgroupv2, err := cgroups.IsCgroup2UnifiedMode() + if err != nil { + return call.ReplyErrorOccurred(err.Error()) + } + if rootless.IsRootless() && !cgroupv2 { + return call.ReplyErrRequiresCgroupsV2ForRootless("rootless containers cannot report container stats") + } ctr, err := i.Runtime.LookupContainer(name) if err != nil { return call.ReplyContainerNotFound(name, err.Error()) |