security context initial implementation - squash

pkg/securitycontext/util.go

@@ -0,0 +1,43 @@
+/*
+Copyright 2014 The Kubernetes Authors All rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package securitycontext
+
+import "github.com/GoogleCloudPlatform/kubernetes/pkg/api"
+
+// HasPrivilegedRequest returns the value of SecurityContext.Privileged, taking into account
+// the possibility of nils
+func HasPrivilegedRequest(container *api.Container) bool {
+	if container.SecurityContext == nil {
+		return false
+	}
+	if container.SecurityContext.Privileged == nil {
+		return false
+	}
+	return *container.SecurityContext.Privileged
+}
+
+// HasCapabilitiesRequest returns true if Adds or Drops are defined in the security context
+// capabilities, taking into account nils
+func HasCapabilitiesRequest(container *api.Container) bool {
+	if container.SecurityContext == nil {
+		return false
+	}
+	if container.SecurityContext.Capabilities == nil {
+		return false
+	}
+	return len(container.SecurityContext.Capabilities.Add) > 0 || len(container.SecurityContext.Capabilities.Drop) > 0
+}