vendor files

vendor/k8s.io/kubernetes/test/e2e/common/expansion.go

@@ -0,0 +1,147 @@
+/*
+Copyright 2016 The Kubernetes Authors.
+
+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 common
+
+import (
+	"k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/util/uuid"
+	"k8s.io/kubernetes/test/e2e/framework"
+)
+
+// These tests exercise the Kubernetes expansion syntax $(VAR).
+// For more information, see:
+// https://github.com/kubernetes/community/blob/master/contributors/design-proposals/node/expansion.md
+var _ = framework.KubeDescribe("Variable Expansion", func() {
+	f := framework.NewDefaultFramework("var-expansion")
+
+	/*
+		    Testname: var-expansion-env
+		    Description: Make sure environment variables can be set using an
+			expansion of previously defined environment variables
+	*/
+	framework.ConformanceIt("should allow composing env vars into new env vars ", func() {
+		podName := "var-expansion-" + string(uuid.NewUUID())
+		pod := &v1.Pod{
+			ObjectMeta: metav1.ObjectMeta{
+				Name:   podName,
+				Labels: map[string]string{"name": podName},
+			},
+			Spec: v1.PodSpec{
+				Containers: []v1.Container{
+					{
+						Name:    "dapi-container",
+						Image:   busyboxImage,
+						Command: []string{"sh", "-c", "env"},
+						Env: []v1.EnvVar{
+							{
+								Name:  "FOO",
+								Value: "foo-value",
+							},
+							{
+								Name:  "BAR",
+								Value: "bar-value",
+							},
+							{
+								Name:  "FOOBAR",
+								Value: "$(FOO);;$(BAR)",
+							},
+						},
+					},
+				},
+				RestartPolicy: v1.RestartPolicyNever,
+			},
+		}
+
+		f.TestContainerOutput("env composition", pod, 0, []string{
+			"FOO=foo-value",
+			"BAR=bar-value",
+			"FOOBAR=foo-value;;bar-value",
+		})
+	})
+
+	/*
+		    Testname: var-expansion-command
+		    Description: Make sure a container's commands can be set using an
+			expansion of environment variables.
+	*/
+	framework.ConformanceIt("should allow substituting values in a container's command ", func() {
+		podName := "var-expansion-" + string(uuid.NewUUID())
+		pod := &v1.Pod{
+			ObjectMeta: metav1.ObjectMeta{
+				Name:   podName,
+				Labels: map[string]string{"name": podName},
+			},
+			Spec: v1.PodSpec{
+				Containers: []v1.Container{
+					{
+						Name:    "dapi-container",
+						Image:   busyboxImage,
+						Command: []string{"sh", "-c", "TEST_VAR=wrong echo \"$(TEST_VAR)\""},
+						Env: []v1.EnvVar{
+							{
+								Name:  "TEST_VAR",
+								Value: "test-value",
+							},
+						},
+					},
+				},
+				RestartPolicy: v1.RestartPolicyNever,
+			},
+		}
+
+		f.TestContainerOutput("substitution in container's command", pod, 0, []string{
+			"test-value",
+		})
+	})
+
+	/*
+		    Testname: var-expansion-arg
+		    Description: Make sure a container's args can be set using an
+			expansion of environment variables.
+	*/
+	framework.ConformanceIt("should allow substituting values in a container's args ", func() {
+		podName := "var-expansion-" + string(uuid.NewUUID())
+		pod := &v1.Pod{
+			ObjectMeta: metav1.ObjectMeta{
+				Name:   podName,
+				Labels: map[string]string{"name": podName},
+			},
+			Spec: v1.PodSpec{
+				Containers: []v1.Container{
+					{
+						Name:    "dapi-container",
+						Image:   busyboxImage,
+						Command: []string{"sh", "-c"},
+						Args:    []string{"TEST_VAR=wrong echo \"$(TEST_VAR)\""},
+						Env: []v1.EnvVar{
+							{
+								Name:  "TEST_VAR",
+								Value: "test-value",
+							},
+						},
+					},
+				},
+				RestartPolicy: v1.RestartPolicyNever,
+			},
+		}
+
+		f.TestContainerOutput("substitution in container's args", pod, 0, []string{
+			"test-value",
+		})
+	})
+})