Merge pull request #7372 from giuseppe/add-unified-configuration

podman: add option --cgroup-conf

3 files changed, 21 insertions, 1 deletions

diff --git a/cmd/podman/common/create.go b/cmd/podman/common/create.go
index 403a1065b..d0bc8d466 100644
--- a/cmd/podman/common/create.go
+++ b/cmd/podman/common/create.go
@@ -516,5 +516,10 @@ func GetCreateFlags(cf *ContainerCLIOpts) *pflag.FlagSet {
 		"seccomp-policy", "default",
 		"Policy for selecting a seccomp profile (experimental)",
 	)
+	createFlags.StringSliceVar(
+		&cf.CgroupConf,
+		"cgroup-conf", []string{},
+		"Configure cgroup v2 (key=value)",
+	)
 	return &createFlags
 }
diff --git a/cmd/podman/common/create_opts.go b/cmd/podman/common/create_opts.go
index f9e4d7ca5..16d41988f 100644
--- a/cmd/podman/common/create_opts.go
+++ b/cmd/podman/common/create_opts.go
@@ -106,4 +106,6 @@ type ContainerCLIOpts struct {
 	SeccompPolicy     string
 
 	Net *entities.NetOptions
+
+	CgroupConf []string
 }
diff --git a/cmd/podman/common/specgen.go b/cmd/podman/common/specgen.go
index bf50bb56b..4de622916 100644
--- a/cmd/podman/common/specgen.go
+++ b/cmd/podman/common/specgen.go
@@ -450,7 +450,20 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *ContainerCLIOpts, args []string
 		s.ResourceLimits.Pids = &pids
 	}
 	s.ResourceLimits.CPU = getCPULimits(c)
-	if s.ResourceLimits.CPU == nil && s.ResourceLimits.Pids == nil && s.ResourceLimits.BlockIO == nil && s.ResourceLimits.Memory == nil {
+
+	unifieds := make(map[string]string)
+	for _, unified := range c.CgroupConf {
+		splitUnified := strings.SplitN(unified, "=", 2)
+		if len(splitUnified) < 2 {
+			return errors.Errorf("--cgroup-conf must be formatted KEY=VALUE")
+		}
+		unifieds[splitUnified[0]] = splitUnified[1]
+	}
+	if len(unifieds) > 0 {
+		s.ResourceLimits.Unified = unifieds
+	}
+
+	if s.ResourceLimits.CPU == nil && s.ResourceLimits.Pids == nil && s.ResourceLimits.BlockIO == nil && s.ResourceLimits.Memory == nil && s.ResourceLimits.Unified == nil {
 		s.ResourceLimits = nil
 	}