secrets.go

/*
Copyright 2014 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 (
	"fmt"

	"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"

	. "github.com/onsi/ginkgo"
)

var _ = Describe("[sig-api-machinery] Secrets", func() {
	f := framework.NewDefaultFramework("secrets")

	/*
		    Testname: secret-env-vars
		    Description: Ensure that secret can be consumed via environment
			variables.
	*/
	framework.ConformanceIt("should be consumable from pods in env vars ", func() {
		name := "secret-test-" + string(uuid.NewUUID())
		secret := secretForTest(f.Namespace.Name, name)

		By(fmt.Sprintf("Creating secret with name %s", secret.Name))
		var err error
		if secret, err = f.ClientSet.CoreV1().Secrets(f.Namespace.Name).Create(secret); err != nil {
			framework.Failf("unable to create test secret %s: %v", secret.Name, err)
		}

		pod := &v1.Pod{
			ObjectMeta: metav1.ObjectMeta{
				Name: "pod-secrets-" + string(uuid.NewUUID()),
			},
			Spec: v1.PodSpec{
				Containers: []v1.Container{
					{
						Name:    "secret-env-test",
						Image:   busyboxImage,
						Command: []string{"sh", "-c", "env"},
						Env: []v1.EnvVar{
							{
								Name: "SECRET_DATA",
								ValueFrom: &v1.EnvVarSource{
									SecretKeyRef: &v1.SecretKeySelector{
										LocalObjectReference: v1.LocalObjectReference{
											Name: name,
										},
										Key: "data-1",
									},
								},
							},
						},
					},
				},
				RestartPolicy: v1.RestartPolicyNever,
			},
		}

		f.TestContainerOutput("consume secrets", pod, 0, []string{
			"SECRET_DATA=value-1",
		})
	})

	/*
		    Testname: secret-configmaps-source
		    Description: Ensure that secret can be consumed via source of a set
			of ConfigMaps.
	*/
	framework.ConformanceIt("should be consumable via the environment ", func() {
		name := "secret-test-" + string(uuid.NewUUID())
		secret := newEnvFromSecret(f.Namespace.Name, name)
		By(fmt.Sprintf("creating secret %v/%v", f.Namespace.Name, secret.Name))
		var err error
		if secret, err = f.ClientSet.CoreV1().Secrets(f.Namespace.Name).Create(secret); err != nil {
			framework.Failf("unable to create test secret %s: %v", secret.Name, err)
		}

		pod := &v1.Pod{
			ObjectMeta: metav1.ObjectMeta{
				Name: "pod-configmaps-" + string(uuid.NewUUID()),
			},
			Spec: v1.PodSpec{
				Containers: []v1.Container{
					{
						Name:    "env-test",
						Image:   busyboxImage,
						Command: []string{"sh", "-c", "env"},
						EnvFrom: []v1.EnvFromSource{
							{
								SecretRef: &v1.SecretEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: name}},
							},
							{
								Prefix:    "p_",
								SecretRef: &v1.SecretEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: name}},
							},
						},
					},
				},
				RestartPolicy: v1.RestartPolicyNever,
			},
		}

		f.TestContainerOutput("consume secrets", pod, 0, []string{
			"data_1=value-1", "data_2=value-2", "data_3=value-3",
			"p_data_1=value-1", "p_data_2=value-2", "p_data_3=value-3",
		})
	})
})

func newEnvFromSecret(namespace, name string) *v1.Secret {
	return &v1.Secret{
		ObjectMeta: metav1.ObjectMeta{
			Namespace: namespace,
			Name:      name,
		},
		Data: map[string][]byte{
			"data_1": []byte("value-1\n"),
			"data_2": []byte("value-2\n"),
			"data_3": []byte("value-3\n"),
		},
	}
}