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-rw-r--r--libpod/runtime.go10
1 files changed, 10 insertions, 0 deletions
diff --git a/libpod/runtime.go b/libpod/runtime.go
index 30659a3d4..1f403790f 100644
--- a/libpod/runtime.go
+++ b/libpod/runtime.go
@@ -30,6 +30,7 @@ import (
"github.com/containers/podman/v3/libpod/shutdown"
"github.com/containers/podman/v3/pkg/cgroups"
"github.com/containers/podman/v3/pkg/rootless"
+ "github.com/containers/podman/v3/pkg/systemd"
"github.com/containers/podman/v3/pkg/util"
"github.com/containers/storage"
"github.com/containers/storage/pkg/unshare"
@@ -500,6 +501,15 @@ func makeRuntime(ctx context.Context, runtime *Runtime) (retErr error) {
// no containers running. Create immediately a namespace, as
// we will need to access the storage.
if needsUserns {
+ // warn users if mode is rootless and cgroup manager is systemd
+ // and no valid systemd session is present
+ // warn only whenever new namespace is created
+ if runtime.config.Engine.CgroupManager == config.SystemdCgroupsManager {
+ unified, _ := cgroups.IsCgroup2UnifiedMode()
+ if unified && rootless.IsRootless() && !systemd.IsSystemdSessionValid(rootless.GetRootlessUID()) {
+ logrus.Debug("Invalid systemd user session for current user")
+ }
+ }
aliveLock.Unlock() // Unlock to avoid deadlock as BecomeRootInUserNS will reexec.
pausePid, err := util.GetRootlessPauseProcessPidPathGivenDir(runtime.config.Engine.TmpDir)
if err != nil {