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podman stats: move cgroup validation to server 

Podman stats is not supported for rootless cgroupv1 setups. The check
for this must be on the server side and not the client.

[NO NEW TESTS NEEDED] we cannot test this because remote and server are
always on the same machine in CI

Fixes #11909

Signed-off-by: Paul Holzinger <pholzing@redhat.com>
This commit is contained in:
Paul Holzinger 2021-10-11 16:09:11 +02:00
parent ea868933e8
commit e57b32c595
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GPG Key ID: EB145DD938A3CAF2
2 changed files with 9 additions and 12 deletions
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12
cmd/podman/containers/stats.go
View File

@ -11,9 +11,7 @@ import (
"github.com/containers/podman/v3/cmd/podman/registry"
"github.com/containers/podman/v3/cmd/podman/validate"
"github.com/containers/podman/v3/libpod/define"
"github.com/containers/podman/v3/pkg/cgroups"
"github.com/containers/podman/v3/pkg/domain/entities"
"github.com/containers/podman/v3/pkg/rootless"
"github.com/containers/podman/v3/utils"
"github.com/docker/go-units"
"github.com/pkg/errors"
@ -113,16 +111,6 @@ func checkStatOptions(cmd *cobra.Command, args []string) error {
}
func stats(cmd *cobra.Command, args []string) error {
if rootless.IsRootless() {
unified, err := cgroups.IsCgroup2UnifiedMode()
if err != nil {
return err
}
if !unified {
return errors.New("stats is not supported in rootless mode without cgroups v2")
}
}
// Convert to the entities options. We should not leak CLI-only
// options into the backend and separate concerns.
opts := entities.ContainerStatsOptions{

9
pkg/domain/infra/abi/containers.go
View File

@ -1319,6 +1319,15 @@ func (ic *ContainerEngine) ContainerStats(ctx context.Context, namesOrIds []stri
if options.Interval < 1 {
return nil, errors.New("Invalid interval, must be a positive number greater zero")
}
if rootless.IsRootless() {
unified, err := cgroups.IsCgroup2UnifiedMode()
if err != nil {
return nil, err
}
if !unified {
return nil, errors.New("stats is not supported in rootless mode without cgroups v2")
}
}
statsChan = make(chan entities.ContainerStatsReport, 1)
containerFunc := ic.Libpod.GetRunningContainers