cni: pass in the cgroupPath capability argument

There is a new CNI capability argument, cgroupPath, where runtimes can
pass cgroup paths to CNI plugins.

Implement that.

Signed-off-by: Casey Callendrello <cdc@isovalent.com>

pkg/cri/sbserver/sandbox_run.go

@@ -396,6 +396,10 @@ func cniNamespaceOpts(id string, config *runtime.PodSandboxConfig) ([]cni.Namesp
 		opts = append(opts, cni.WithCapabilityDNS(*dns))
 	}
 
+	if cgroup := config.GetLinux().GetCgroupParent(); cgroup != "" {
+		opts = append(opts, cni.WithCapabilityCgroupPath(cgroup))
+	}
+
 	return opts, nil
 }
 

pkg/cri/server/sandbox_run.go

@@ -597,6 +597,10 @@ func cniNamespaceOpts(id string, config *runtime.PodSandboxConfig) ([]cni.Namesp
 		opts = append(opts, cni.WithCapabilityDNS(*dns))
 	}
 
+	if cgroup := config.GetLinux().GetCgroupParent(); cgroup != "" {
+		opts = append(opts, cni.WithCapabilityCgroupPath(cgroup))
+	}
+
 	return opts, nil
 }