Set SELinux labels based on the security context in the kube.yaml

If the kube.yaml specifieds the SELinux type or Level, we need the container
to be launched with the correct label.

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

libpod/util.go

@@ -187,6 +187,9 @@ func programVersion(mountProgram string) (string, error) {
 	return strings.TrimSuffix(output, "\n"), nil
 }
 
+// DefaultSeccompPath returns the path to the default seccomp.json file
+// if it exists, first it checks OverrideSeccomp and then default.
+// If neither exist function returns ""
 func DefaultSeccompPath() (string, error) {
 	_, err := os.Stat(config.SeccompOverridePath)
 	if err == nil {

pkg/adapter/pods.go

@@ -704,6 +704,24 @@ func kubeContainerToCreateConfig(ctx context.Context, containerYAML v1.Container
 			}
 
 		}
+		if seopt := containerYAML.SecurityContext.SELinuxOptions; seopt != nil {
+			if seopt.User != "" {
+				containerConfig.SecurityOpts = append(containerConfig.SecurityOpts, fmt.Sprintf("label=user:%s", seopt.User))
+				containerConfig.LabelOpts = append(containerConfig.LabelOpts, fmt.Sprintf("user:%s", seopt.User))
+			}
+			if seopt.Role != "" {
+				containerConfig.SecurityOpts = append(containerConfig.SecurityOpts, fmt.Sprintf("label=role:%s", seopt.Role))
+				containerConfig.LabelOpts = append(containerConfig.LabelOpts, fmt.Sprintf("role:%s", seopt.Role))
+			}
+			if seopt.Type != "" {
+				containerConfig.SecurityOpts = append(containerConfig.SecurityOpts, fmt.Sprintf("label=type:%s", seopt.Type))
+				containerConfig.LabelOpts = append(containerConfig.LabelOpts, fmt.Sprintf("type:%s", seopt.Type))
+			}
+			if seopt.Level != "" {
+				containerConfig.SecurityOpts = append(containerConfig.SecurityOpts, fmt.Sprintf("label=level:%s", seopt.Level))
+				containerConfig.LabelOpts = append(containerConfig.LabelOpts, fmt.Sprintf("level:%s", seopt.Level))
+			}
+		}
 		if caps := containerYAML.SecurityContext.Capabilities; caps != nil {
 			for _, capability := range caps.Add {
 				containerConfig.CapAdd = append(containerConfig.CapAdd, string(capability))

test/e2e/test.yaml

@@ -0,0 +1,34 @@
+# Save the output of this file and use kubectl create -f to import
+# it into Kubernetes.
+#
+# Created with podman-1.6.2
+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    app: test
+  name: test
+spec:
+  containers:
+  - command:
+    - sleep
+    - "100"
+    env:
+    - name: PATH
+      value: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+    - name: TERM
+      value: xterm
+    - name: container
+      value: podman
+    image: docker.io/library/fedora:latest
+    name: test
+    resources: {}
+    securityContext:
+      allowPrivilegeEscalation: true
+      capabilities: {}
+      privileged: false
+      seLinuxOptions:
+	  level: "s0:c1,c2"
+      readOnlyRootFilesystem: false
+    workingDir: /
+status: {}