// Deploy allows the creation of deploy.Deployments remotely
func (s *SpreadCli) Deploy() *cli.Command {
return &cli.Command{
Name: "deploy",
Usage: "spread deploy [-s] PATH | COMMIT [kubectl context]",
Description: "Deploys objects to a remote Kubernetes cluster.",
ArgsUsage: "-s will deploy only if no other deployment found (otherwise fails)",
Action: func(c *cli.Context) {
ref := c.Args().First()
var dep *deploy.Deployment
proj, err := s.project()
if err == nil {
var docs map[string]*pb.Document
if len(ref) == 0 {
s.printf("Deploying from index...")
docs, err = proj.Index()
if err != nil {
s.fatalf("Error getting index: %v", err)
}
if err = s.promptForArgs(docs, false); err == nil {
dep, err = deploy.DeploymentFromDocMap(docs)
}
} else {
if docs, err = proj.ResolveCommit(ref); err == nil {
if err = s.promptForArgs(docs, false); err == nil {
dep, err = deploy.DeploymentFromDocMap(docs)
}
} else {
dep, err = s.globalDeploy(ref)
}
}
} else {
dep, err = s.globalDeploy(ref)
}
if err != nil {
s.fatalf("Failed to assemble deployment: %v", err)
}
context := c.Args().Get(1)
cluster, err := deploy.NewKubeClusterFromContext(context)
if err != nil {
s.fatalf("Failed to deploy: %v", err)
}
s.printf("Deploying %d objects using the %s.", dep.Len(), displayContext(context))
update := !c.Bool("s")
err = cluster.Deploy(dep, update, false)
if err != nil {
//TODO: make better error messages (one to indicate a deployment already existed; another one if a deployment did not exist but some other error was thrown
s.fatalf("Did not deploy.: %v", err)
}
s.printf("Deployment successful!")
},
}
}
func TestImageDeployment(t *testing.T) {
imageName := "arch"
simple := newDockerImage(t, imageName)
image, err := NewImage(simple, kube.ObjectMeta{}, "test")
assert.NoError(t, err, "valid image")
expectedPod := kube.Pod{
ObjectMeta: kube.ObjectMeta{
GenerateName: imageName,
Namespace: "default",
},
Spec: kube.PodSpec{
Containers: []kube.Container{
{
Name: imageName,
Image: imageName,
ImagePullPolicy: kube.PullAlways,
},
},
RestartPolicy: kube.RestartPolicyAlways,
DNSPolicy: kube.DNSDefault,
},
}
expected := new(deploy.Deployment)
assert.NoError(t, expected.Add(&expectedPod), "should be able to add pod")
actual, err := image.Deployment()
assert.NoError(t, err, "deploy ok")
testDeploymentEqual(t, expected, actual)
}
func TestBaseNew(t *testing.T) {
entityType := Type(rand.Intn(5))
source := randomString(8)
var objects []deploy.KubeObject
base, err := newBase(entityType, kube.ObjectMeta{}, source, objects)
assert.NoError(t, err, "valid entity")
assert.Equal(t, entityType, base.Type(), "type cannot change")
assert.Equal(t, source, base.Source(), "source cannot change")
emptyDeploy := deploy.Deployment{}
assert.True(t, emptyDeploy.Equal(&base.objects))
}
func TestContainerWithImageDeployment(t *testing.T) {
const imageName = "busybox:latest"
kubeContainer := kube.Container{
Name: "simple-container",
Image: imageName,
Command: []string{"/bin/busybox", "ls"},
ImagePullPolicy: kube.PullAlways,
}
ctr, err := NewContainer(kubeContainer, kube.ObjectMeta{}, "simpleTest")
assert.NoError(t, err, "should be able to create container")
assert.NotNil(t, ctr.image, "an image should have been created")
// check images
images := ctr.Images()
assert.Len(t, images, 1, "should have single image")
expectedImage := newDockerImage(t, imageName)
actualImage := images[0]
assert.Equal(t, expectedImage.KubeImage(), actualImage.KubeImage(), "image should not have changed")
// check kube
kubectr, objects, err := ctr.data()
assert.NoError(t, err, "should be able to produce kube")
assert.True(t, kube.Semantic.DeepEqual(&kubectr, &kubeContainer), "kube should be same as container")
assert.Equal(t, objects.Len(), 0, "no objects should have been added")
pod := kube.Pod{
ObjectMeta: kube.ObjectMeta{
GenerateName: kubeContainer.Name,
Namespace: kube.NamespaceDefault,
},
Spec: kube.PodSpec{
Containers: []kube.Container{
kubeContainer,
},
RestartPolicy: kube.RestartPolicyAlways,
DNSPolicy: kube.DNSDefault,
},
}
expected := new(deploy.Deployment)
assert.NoError(t, expected.Add(&pod), "valid pod")
actual, err := ctr.Deployment()
assert.NoError(t, err, "deploy ok")
testDeploymentEqual(t, expected, actual)
}
func TestPodWithContainersDeployment(t *testing.T) {
kubePod := testCreateKubePodSourcegraph("deploy")
pod, err := NewPod(kubePod, kube.ObjectMeta{}, "containers-deploy")
assert.NoError(t, err, "valid pod")
kubePod.Namespace = kube.NamespaceDefault
expected := new(deploy.Deployment)
err = expected.Add(kubePod)
assert.NoError(t, err, "valid pod")
actual, err := pod.Deployment()
assert.NoError(t, err, "deployment should be valid")
testDeploymentEqual(t, expected, actual)
}
func objectOnlyDeploy(input *dir.FileInput) (*deploy.Deployment, error) {
objects, err := input.Objects()
if err != nil {
return nil, err
} else if len(objects) == 0 {
return nil, ErrNothingDeployable
}
deployment := new(deploy.Deployment)
for _, obj := range objects {
err = deployment.Add(obj)
if err != nil {
return nil, err
}
}
return deployment, nil
}
// Deployment is created using Deployments of child Entities
func (c *App) Deployment() (*deploy.Deployment, error) {
d := new(deploy.Deployment)
err := d.AddDeployment(c.objects)
if err != nil {
return nil, err
}
for _, entity := range c.children() {
deploy, err := entity.Deployment()
if err != nil {
return nil, err
}
err = d.AddDeployment(*deploy)
if err != nil {
return nil, err
}
}
return d, nil
}
func TestContainerAttach(t *testing.T) {
imageName := "to-be-attached"
image := testNewImage(t, imageName, kube.ObjectMeta{}, "test", []deploy.KubeObject{})
kubeContainer := testNewKubeContainer("test-container", "") // no image
container, err := NewContainer(kubeContainer, kube.ObjectMeta{}, "attach")
assert.NoError(t, err, "valid container")
_, err = container.Deployment()
assert.Error(t, err, "cannot be deployed without image")
err = container.Attach(image)
assert.NoError(t, err, "attach should be allowed")
children := container.children()
assert.Contains(t, children, image, "should have image as child")
images := container.Images()
assert.Len(t, images, 1, "only one image should exist")
kubeContainer.Image = imageName
pod := kube.Pod{
ObjectMeta: kube.ObjectMeta{
GenerateName: kubeContainer.Name,
Namespace: kube.NamespaceDefault,
},
Spec: kube.PodSpec{
Containers: []kube.Container{
kubeContainer,
},
RestartPolicy: kube.RestartPolicyAlways,
DNSPolicy: kube.DNSDefault,
},
}
expected := new(deploy.Deployment)
assert.NoError(t, expected.Add(&pod), "valid pod")
actual, err := container.Deployment()
assert.NoError(t, err, "deploy ok")
testDeploymentEqual(t, expected, actual)
}
func TestRCValidPodDeployment(t *testing.T) {
selector := map[string]string{
"service": "postgres",
}
kubePod := testCreateKubePodSourcegraph("sourcegraph")
kubePod.Labels = selector
kubeRC := testNewKubeRC(kube.ObjectMeta{Name: "sourcegraph-rc", Namespace: kube.NamespaceDefault}, selector, kubePod)
rc, err := NewReplicationController(kubeRC, kube.ObjectMeta{}, "")
assert.NoError(t, err)
assert.NotNil(t, rc.pod, "a pod should have be created")
assert.Len(t, rc.pod.containers, 2, "two containers should have been created")
expected := new(deploy.Deployment)
err = expected.Add(kubeRC)
assert.NoError(t, err, "should be valid RC")
actual, err := rc.Deployment()
assert.NoError(t, err)
testDeploymentEqual(t, expected, actual)
}
func newBase(t Type, defaults kube.ObjectMeta, source string, objects []deploy.KubeObject) (base base, err error) {
base.defaults = defaults
deployment := deploy.Deployment{}
for _, obj := range objects {
if obj == nil {
err = ErrorNilObject
return
}
base.setDefaults(obj)
err = deployment.Add(obj)
if err != nil {
err = fmt.Errorf("error adding '%s': %v", source, err)
return
}
}
base.source = source
base.entityType = t
base.objects = deployment
return
}
// Deployment is created containing Pod with attached Containers.
func (c *Pod) Deployment() (*deploy.Deployment, error) {
deployment := deploy.Deployment{}
// create Pod from tree of Entities
kubePod, childObj, err := c.data()
if err != nil {
return nil, err
}
// add Pod to deployment
err = deployment.Add(kubePod)
if err != nil {
return nil, err
}
// add child objects
err = deployment.AddDeployment(childObj)
if err != nil {
return nil, err
}
return &deployment, nil
}
func TestPodAttachImage(t *testing.T) {
podObjects := testRandomObjects(3)
kubePod := testNewKubePod("containerless")
pod, err := NewPod(kubePod, kube.ObjectMeta{}, "pod", podObjects...)
assert.NoError(t, err, "valid")
imageObjects := testRandomObjects(3)
kubeImage, err := image.FromString("bprashanth/nginxhttps:1.0")
assert.NoError(t, err, "image should be valid")
image, err := NewImage(kubeImage, kube.ObjectMeta{}, "image", imageObjects...)
assert.NoError(t, err, "valid")
err = pod.Attach(image)
assert.NoError(t, err, "should be attachable")
kubePod.Namespace = kube.NamespaceDefault
kubePod.Spec.Containers = []kube.Container{
{
Name: "nginxhttps",
Image: "bprashanth/nginxhttps:1.0",
ImagePullPolicy: kube.PullAlways,
},
}
objects := append(podObjects, imageObjects...)
expected := new(deploy.Deployment)
err = expected.Add(kubePod)
assert.NoError(t, err, "valid")
for _, obj := range objects {
assert.NoError(t, expected.Add(obj))
}
actual, err := pod.Deployment()
assert.NoError(t, err, "deployment should be ok")
testDeploymentEqual(t, expected, actual)
}
// Deployment is created for RC attached with it's Pod.
func (c *ReplicationController) Deployment() (*deploy.Deployment, error) {
deployment := new(deploy.Deployment)
// create RC
kubeRC, childObj, err := c.data()
if err != nil {
return nil, err
}
// add RC to deployment
err = deployment.Add(kubeRC)
if err != nil {
return nil, err
}
// add child objects
err = deployment.AddDeployment(childObj)
if err != nil {
return nil, err
}
return deployment, nil
}
func TestPodAttachContainer(t *testing.T) {
podObjects := testRandomObjects(60)
kubePod := testNewKubePod("containerless")
pod, err := NewPod(kubePod, kube.ObjectMeta{}, "pod", podObjects...)
assert.NoError(t, err, "valid")
containerObjects := testRandomObjects(20)
kubeContainer := testNewKubeContainer("container", "busybox:latest")
container, err := NewContainer(kubeContainer, kube.ObjectMeta{}, "container", containerObjects...)
assert.NoError(t, err)
err = pod.Attach(container)
assert.NoError(t, err)
children := pod.children()
assert.Contains(t, children, container, "should have container as child")
kubePod.Namespace = kube.NamespaceDefault
kubePod.Spec.Containers = []kube.Container{
kubeContainer,
}
expected := new(deploy.Deployment)
err = expected.Add(kubePod)
assert.NoError(t, err)
actual, err := pod.Deployment()
assert.NoError(t, err)
objects := append(podObjects, containerObjects...)
for _, obj := range objects {
assert.NoError(t, expected.Add(obj))
}
testDeploymentEqual(t, expected, actual)
}
func testDeploymentEqual(t *testing.T, expected, actual *deploy.Deployment) bool {
equal := expected.Equal(actual)
return assert.True(t, equal, "expected: %s,\n actual: %s,\n diff:\n%s", expected, actual, expected.Diff(actual))
}
func TestRCAttachPod(t *testing.T) {
kubeContainer := kube.Container{
Name: "redis",
Image: "redis",
ImagePullPolicy: kube.PullAlways,
}
selector := map[string]string{
"app": "db",
}
// create ReplicationController
rcObjects := testRandomObjects(10)
rc := testNewRC(t, "container-test", selector, rcObjects)
// create kube.Pod
// create Pod from created pod
kubePod := &kube.Pod{
ObjectMeta: kube.ObjectMeta{Name: "attached"},
Spec: kube.PodSpec{
Containers: []kube.Container{
kubeContainer,
},
RestartPolicy: kube.RestartPolicyAlways,
DNSPolicy: kube.DNSDefault,
},
}
podObjects := testRandomObjects(10)
pod, err := NewPod(kubePod, kube.ObjectMeta{}, "", podObjects...)
assert.NoError(t, err, "should be valid pod")
// Attach pod to RC
// Should assume defaults up tree creating necessary components
err = rc.Attach(pod)
assert.NoError(t, err, "pod should be able to attach to ")
children := rc.children()
assert.Contains(t, children, pod, "should have image as child")
// Compare internal elements
assert.NotNil(t, rc.pod, "should of created pod")
assert.Len(t, rc.pod.containers, 1)
// Create struct representation for expected
// Insert into Deployment
// Create Deployment from RC
rcMeta := rc.rc.ObjectMeta
rcMeta.Namespace = kube.NamespaceDefault
podMeta := pod.pod.ObjectMeta
podMeta.Labels = selector
expectedRC := &kube.ReplicationController{
ObjectMeta: rcMeta,
Spec: kube.ReplicationControllerSpec{
Selector: selector,
Template: &kube.PodTemplateSpec{
ObjectMeta: kube.ObjectMeta{
Namespace: kube.NamespaceDefault,
Labels: selector,
},
Spec: kubePod.Spec,
},
},
}
// Insert into Deployment
expected := new(deploy.Deployment)
err = expected.Add(expectedRC)
assert.NoError(t, err, "should be valid RC")
// add objects to deployment
expected.AddDeployment(pod.objects)
expected.AddDeployment(rc.objects)
// Create Deployment from RC
actual, err := rc.Deployment()
assert.NoError(t, err, "should produce valid deployment")
// Compare deployments
testDeploymentEqual(t, expected, actual)
// check images
images := rc.Images()
assert.Len(t, images, 1)
}
func TestRCAttachImage(t *testing.T) {
imageName := "rc-attach-image"
rcName := "image-test"
selector := map[string]string{
"app": "cache",
}
// create ReplicationController
rcObjects := testRandomObjects(10)
rc := testNewRC(t, rcName, selector, rcObjects)
// create Image
imageObjects := testRandomObjects(10)
imageEntity := testNewImage(t, imageName, kube.ObjectMeta{}, "", imageObjects)
// Attach image to RC
// Should assume defaults up tree creating necessary components
err := rc.Attach(imageEntity)
assert.NoError(t, err, "attachment should be allowed")
// Compare internal elements
assert.NotNil(t, rc.pod, "should of created template")
// Create struct representation for expected
expectedRC := &kube.ReplicationController{
ObjectMeta: kube.ObjectMeta{
Name: rcName,
Namespace: kube.NamespaceDefault,
},
Spec: kube.ReplicationControllerSpec{
Selector: selector,
Template: &kube.PodTemplateSpec{
ObjectMeta: kube.ObjectMeta{
Namespace: kube.NamespaceDefault,
Labels: selector,
},
Spec: kube.PodSpec{
Containers: []kube.Container{
{
Name: imageName,
Image: imageName,
ImagePullPolicy: kube.PullAlways,
},
},
RestartPolicy: kube.RestartPolicyAlways,
DNSPolicy: kube.DNSDefault,
},
},
},
}
// Insert into Deployment
expected := new(deploy.Deployment)
err = expected.Add(expectedRC)
assert.NoError(t, err, "should be valid RC")
// add objects to deployment
expected.AddDeployment(imageEntity.objects)
expected.AddDeployment(rc.objects)
// Create Deployment from RC
actual, err := rc.Deployment()
assert.NoError(t, err, "should produce valid deployment")
// Compare deployments
testDeploymentEqual(t, expected, actual)
// check images
images := rc.Images()
expectedImage, _ := image.FromString(imageName)
assert.Len(t, images, 1)
for _, v := range images {
assert.EqualValues(t, expectedImage, v, "should match original image")
}
}
func TestRCAttachContainer(t *testing.T) {
containerName := "attached"
imageName := "embedded-image"
selector := map[string]string{
"app": "db",
}
// create ReplicationController
rcObjects := testRandomObjects(10)
rc := testNewRC(t, "container-test", selector, rcObjects)
// create kube.Container
// create Container from created container
containerObjects := testRandomObjects(20)
kubeContainer := testNewKubeContainer(containerName, imageName)
container, err := NewContainer(kubeContainer, kube.ObjectMeta{}, "", containerObjects...)
assert.NoError(t, err, "should be valid container")
// Attach container to RC
// Should assume defaults up tree creating necessary components
err = rc.Attach(container)
assert.NoError(t, err, "container should be able to attach to rc")
// Compare internal elements
assert.NotNil(t, rc.pod, "should of created pod")
// assert.Len(t, rc.pod.containers, 1)
// Create struct representation for expected
// Insert into Deployment
// Create Deployment from RC
rcMeta := rc.rc.ObjectMeta
rcMeta.Namespace = kube.NamespaceDefault
expectedRC := &kube.ReplicationController{
ObjectMeta: rcMeta,
Spec: kube.ReplicationControllerSpec{
Selector: selector,
Template: &kube.PodTemplateSpec{
ObjectMeta: kube.ObjectMeta{
Labels: selector,
Namespace: kube.NamespaceDefault,
},
Spec: kube.PodSpec{
Containers: []kube.Container{
kubeContainer,
},
RestartPolicy: kube.RestartPolicyAlways,
DNSPolicy: kube.DNSDefault,
},
},
},
}
// Insert into Deployment
expected := new(deploy.Deployment)
err = expected.Add(expectedRC)
assert.NoError(t, err, "should be valid RC")
// add objects to deployment
expected.AddDeployment(container.objects)
expected.AddDeployment(rc.objects)
// Create Deployment from RC
actual, err := rc.Deployment()
assert.NoError(t, err, "should produce valid deployment")
// Compare deployments
testDeploymentEqual(t, expected, actual)
// check images
images := rc.Images()
assert.Len(t, images, 1)
}