// cancel cancels any deployment process in progress for config.
func (o DeployOptions) cancel(config *deployapi.DeploymentConfig) error {
if config.Spec.Paused {
return fmt.Errorf("cannot cancel a paused deployment config")
}
deployments, err := o.kubeClient.ReplicationControllers(config.Namespace).List(kapi.ListOptions{LabelSelector: deployutil.ConfigSelector(config.Name)})
if err != nil {
return err
}
if len(deployments.Items) == 0 {
fmt.Fprintf(o.out, "There have been no deployments for %s/%s\n", config.Namespace, config.Name)
return nil
}
sort.Sort(deployutil.ByLatestVersionDesc(deployments.Items))
failedCancellations := []string{}
anyCancelled := false
for _, deployment := range deployments.Items {
status := deployutil.DeploymentStatusFor(&deployment)
switch status {
case deployapi.DeploymentStatusNew,
deployapi.DeploymentStatusPending,
deployapi.DeploymentStatusRunning:
if deployutil.IsDeploymentCancelled(&deployment) {
continue
}
deployment.Annotations[deployapi.DeploymentCancelledAnnotation] = deployapi.DeploymentCancelledAnnotationValue
deployment.Annotations[deployapi.DeploymentStatusReasonAnnotation] = deployapi.DeploymentCancelledByUser
_, err := o.kubeClient.ReplicationControllers(deployment.Namespace).Update(&deployment)
if err == nil {
fmt.Fprintf(o.out, "Cancelled deployment #%d\n", config.Status.LatestVersion)
anyCancelled = true
} else {
fmt.Fprintf(o.out, "Couldn't cancel deployment #%d (status: %s): %v\n", deployutil.DeploymentVersionFor(&deployment), status, err)
failedCancellations = append(failedCancellations, strconv.FormatInt(deployutil.DeploymentVersionFor(&deployment), 10))
}
}
}
if len(failedCancellations) > 0 {
return fmt.Errorf("couldn't cancel deployment %s", strings.Join(failedCancellations, ", "))
}
if !anyCancelled {
latest := &deployments.Items[0]
maybeCancelling := ""
if deployutil.IsDeploymentCancelled(latest) && !deployutil.IsTerminatedDeployment(latest) {
maybeCancelling = " (cancelling)"
}
timeAt := strings.ToLower(units.HumanDuration(time.Now().Sub(latest.CreationTimestamp.Time)))
fmt.Fprintf(o.out, "No deployments are in progress (latest deployment #%d %s%s %s ago)\n",
deployutil.DeploymentVersionFor(latest),
strings.ToLower(string(deployutil.DeploymentStatusFor(latest))),
maybeCancelling,
timeAt)
}
return nil
}
func describeDeploymentStatus(deploy *kapi.ReplicationController, first, test bool) string {
timeAt := strings.ToLower(formatRelativeTime(deploy.CreationTimestamp.Time))
status := deployutil.DeploymentStatusFor(deploy)
version := deployutil.DeploymentVersionFor(deploy)
maybeCancelling := ""
if deployutil.IsDeploymentCancelled(deploy) && !deployutil.IsTerminatedDeployment(deploy) {
maybeCancelling = " (cancelling)"
}
switch status {
case deployapi.DeploymentStatusFailed:
reason := deployutil.DeploymentStatusReasonFor(deploy)
if len(reason) > 0 {
reason = fmt.Sprintf(": %s", reason)
}
// TODO: encode fail time in the rc
return fmt.Sprintf("deployment #%d failed %s ago%s%s", version, timeAt, reason, describePodSummaryInline(deploy, false))
case deployapi.DeploymentStatusComplete:
// TODO: pod status output
if test {
return fmt.Sprintf("test deployment #%d deployed %s ago", version, timeAt)
}
return fmt.Sprintf("deployment #%d deployed %s ago%s", version, timeAt, describePodSummaryInline(deploy, first))
case deployapi.DeploymentStatusRunning:
format := "deployment #%d running%s for %s%s"
if test {
format = "test deployment #%d running%s for %s%s"
}
return fmt.Sprintf(format, version, maybeCancelling, timeAt, describePodSummaryInline(deploy, false))
default:
return fmt.Sprintf("deployment #%d %s%s %s ago%s", version, strings.ToLower(string(status)), maybeCancelling, timeAt, describePodSummaryInline(deploy, false))
}
}
func deploymentRunning(dc *deployapi.DeploymentConfig, rcs []kapi.ReplicationController, pods []kapi.Pod) (bool, error) {
if len(rcs) == 0 {
return false, nil
}
rc := rcs[len(rcs)-1]
version := deployutil.DeploymentVersionFor(&rc)
if version != dc.Status.LatestVersion {
//e2e.Logf("deployment %s is not the latest version on DC: %d", rc.Name, version)
return false, nil
}
status := rc.Annotations[deployapi.DeploymentStatusAnnotation]
switch deployapi.DeploymentStatus(status) {
case deployapi.DeploymentStatusFailed:
if deployutil.IsDeploymentCancelled(&rc) {
return true, nil
}
reason := deployutil.DeploymentStatusReasonFor(&rc)
if reason == "deployer pod no longer exists" {
return true, nil
}
return false, fmt.Errorf("deployment failed: %v", deployutil.DeploymentStatusReasonFor(&rc))
case deployapi.DeploymentStatusRunning, deployapi.DeploymentStatusComplete:
return true, nil
default:
return false, nil
}
}
func (c *DeploymentController) nextStatus(pod *kapi.Pod, deployment *kapi.ReplicationController) deployapi.DeploymentStatus {
switch pod.Status.Phase {
case kapi.PodPending:
return deployapi.DeploymentStatusPending
case kapi.PodRunning:
return deployapi.DeploymentStatusRunning
case kapi.PodSucceeded:
// If the deployment was cancelled just prior to the deployer pod succeeding
// then we need to remove the cancel annotations from the complete deployment
// and emit an event letting users know their cancellation failed.
if deployutil.IsDeploymentCancelled(deployment) {
delete(deployment.Annotations, deployapi.DeploymentCancelledAnnotation)
delete(deployment.Annotations, deployapi.DeploymentStatusReasonAnnotation)
c.emitDeploymentEvent(deployment, kapi.EventTypeWarning, "FailedCancellation", "Succeeded before cancel recorded")
}
// Sync the internal replica annotation with the target so that we can
// distinguish deployer updates from other scaling events.
deployment.Annotations[deployapi.DeploymentReplicasAnnotation] = deployment.Annotations[deployapi.DesiredReplicasAnnotation]
delete(deployment.Annotations, deployapi.DesiredReplicasAnnotation)
return deployapi.DeploymentStatusComplete
case kapi.PodFailed:
return deployapi.DeploymentStatusFailed
}
return deployapi.DeploymentStatusNew
}
// cancel cancels any deployment process in progress for config.
func (o *DeployOptions) cancel(config *deployapi.DeploymentConfig, out io.Writer) error {
deployments, err := o.kubeClient.ReplicationControllers(config.Namespace).List(deployutil.ConfigSelector(config.Name))
if err != nil {
return err
}
if len(deployments.Items) == 0 {
fmt.Fprintln(out, "no deployments found to cancel")
return nil
}
failedCancellations := []string{}
anyCancelled := false
for _, deployment := range deployments.Items {
status := deployutil.DeploymentStatusFor(&deployment)
switch status {
case deployapi.DeploymentStatusNew,
deployapi.DeploymentStatusPending,
deployapi.DeploymentStatusRunning:
if deployutil.IsDeploymentCancelled(&deployment) {
continue
}
deployment.Annotations[deployapi.DeploymentCancelledAnnotation] = deployapi.DeploymentCancelledAnnotationValue
deployment.Annotations[deployapi.DeploymentStatusReasonAnnotation] = deployapi.DeploymentCancelledByUser
_, err := o.kubeClient.ReplicationControllers(deployment.Namespace).Update(&deployment)
if err == nil {
fmt.Fprintf(out, "cancelled deployment #%d\n", config.LatestVersion)
anyCancelled = true
} else {
fmt.Fprintf(out, "couldn't cancel deployment #%d (status: %s): %v\n", deployutil.DeploymentVersionFor(&deployment), status, err)
failedCancellations = append(failedCancellations, strconv.Itoa(deployutil.DeploymentVersionFor(&deployment)))
}
}
}
if len(failedCancellations) > 0 {
return fmt.Errorf("couldn't cancel deployment %s", strings.Join(failedCancellations, ", "))
}
if !anyCancelled {
fmt.Fprintln(out, "no active deployments to cancel")
}
return nil
}
// cancel cancels any deployment process in progress for config.
func (c *cancelDeploymentCommand) cancel(config *deployapi.DeploymentConfig, out io.Writer) error {
deployments, err := c.client.ListDeploymentsForConfig(config.Namespace, config.Name)
if err != nil {
return err
}
if len(deployments.Items) == 0 {
fmt.Fprintln(out, "no deployments found to cancel")
return nil
}
failedCancellations := []string{}
for _, deployment := range deployments.Items {
status := deployutil.DeploymentStatusFor(&deployment)
switch status {
case deployapi.DeploymentStatusNew,
deployapi.DeploymentStatusPending,
deployapi.DeploymentStatusRunning:
if deployutil.IsDeploymentCancelled(&deployment) {
continue
}
deployment.Annotations[deployapi.DeploymentCancelledAnnotation] = deployapi.DeploymentCancelledAnnotationValue
deployment.Annotations[deployapi.DeploymentStatusReasonAnnotation] = deployapi.DeploymentCancelledByUser
_, err := c.client.UpdateDeployment(&deployment)
if err == nil {
fmt.Fprintf(out, "cancelled #%d\n", config.LatestVersion)
} else {
fmt.Fprintf(out, "couldn't cancel deployment %d (status: %s): %v\n", deployutil.DeploymentVersionFor(&deployment), status, err)
failedCancellations = append(failedCancellations, strconv.Itoa(deployutil.DeploymentVersionFor(&deployment)))
}
default:
fmt.Fprintln(out, "no active deployments to cancel")
}
}
if len(failedCancellations) == 0 {
return nil
} else {
return fmt.Errorf("couldn't cancel deployment %s", strings.Join(failedCancellations, ", "))
}
}
// Handle processes deployment and either creates a deployer pod or responds
// to a terminal deployment status.
func (c *DeploymentController) Handle(deployment *kapi.ReplicationController) error {
currentStatus := deployutil.DeploymentStatusFor(deployment)
nextStatus := currentStatus
deploymentScaled := false
switch currentStatus {
case deployapi.DeploymentStatusNew:
// If the deployment has been cancelled, don't create a deployer pod, and
// transition to failed immediately.
if deployutil.IsDeploymentCancelled(deployment) {
nextStatus = deployapi.DeploymentStatusFailed
break
}
// Generate a deployer pod spec.
podTemplate, err := c.makeDeployerPod(deployment)
if err != nil {
return fatalError(fmt.Sprintf("couldn't make deployer pod for %s: %v", deployutil.LabelForDeployment(deployment), err))
}
// Create the deployer pod.
deploymentPod, err := c.podClient.createPod(deployment.Namespace, podTemplate)
if err == nil {
deployment.Annotations[deployapi.DeploymentPodAnnotation] = deploymentPod.Name
nextStatus = deployapi.DeploymentStatusPending
glog.V(4).Infof("Created pod %s for deployment %s", deploymentPod.Name, deployutil.LabelForDeployment(deployment))
break
}
// Retry on error.
if !kerrors.IsAlreadyExists(err) {
c.recorder.Eventf(deployment, kapi.EventTypeWarning, "FailedCreate", "Error creating deployer pod for %s: %v", deployutil.LabelForDeployment(deployment), err)
return fmt.Errorf("couldn't create deployer pod for %s: %v", deployutil.LabelForDeployment(deployment), err)
}
// If the pod already exists, it's possible that a previous CreatePod
// succeeded but the deployment state update failed and now we're re-
// entering. Ensure that the pod is the one we created by verifying the
// annotation on it, and throw a retryable error.
existingPod, err := c.podClient.getPod(deployment.Namespace, deployutil.DeployerPodNameForDeployment(deployment.Name))
if err != nil {
c.recorder.Eventf(deployment, kapi.EventTypeWarning, "FailedCreate", "Error getting existing deployer pod for %s: %v", deployutil.LabelForDeployment(deployment), err)
return fmt.Errorf("couldn't fetch existing deployer pod for %s: %v", deployutil.LabelForDeployment(deployment), err)
}
// Do a stronger check to validate that the existing deployer pod is
// actually for this deployment, and if not, fail this deployment.
//
// TODO: Investigate checking the container image of the running pod and
// comparing with the intended deployer pod image. If we do so, we'll need
// to ensure that changes to 'unrelated' pods don't result in updates to
// the deployment. So, the image check will have to be done in other areas
// of the code as well.
if deployutil.DeploymentNameFor(existingPod) != deployment.Name {
nextStatus = deployapi.DeploymentStatusFailed
deployment.Annotations[deployapi.DeploymentStatusReasonAnnotation] = deployapi.DeploymentFailedUnrelatedDeploymentExists
c.recorder.Eventf(deployment, kapi.EventTypeWarning, "FailedCreate", "Error creating deployer pod for %s since another pod with the same name (%q) exists", deployutil.LabelForDeployment(deployment), existingPod.Name)
glog.V(2).Infof("Couldn't create deployer pod for %s since an unrelated pod with the same name (%q) exists", deployutil.LabelForDeployment(deployment), existingPod.Name)
break
}
// Update to pending relative to the existing validated deployer pod.
deployment.Annotations[deployapi.DeploymentPodAnnotation] = existingPod.Name
nextStatus = deployapi.DeploymentStatusPending
glog.V(4).Infof("Detected existing deployer pod %s for deployment %s", existingPod.Name, deployutil.LabelForDeployment(deployment))
case deployapi.DeploymentStatusPending, deployapi.DeploymentStatusRunning:
// If the deployer pod has vanished, consider the deployment a failure.
deployerPodName := deployutil.DeployerPodNameForDeployment(deployment.Name)
if _, err := c.podClient.getPod(deployment.Namespace, deployerPodName); err != nil {
if kerrors.IsNotFound(err) {
nextStatus = deployapi.DeploymentStatusFailed
deployment.Annotations[deployapi.DeploymentStatusAnnotation] = string(nextStatus)
deployment.Annotations[deployapi.DeploymentStatusReasonAnnotation] = deployapi.DeploymentFailedDeployerPodNoLongerExists
c.recorder.Eventf(deployment, kapi.EventTypeWarning, "failed", "Deployer pod %q has gone missing", deployerPodName)
glog.V(4).Infof("Failing deployment %q because its deployer pod %q disappeared", deployutil.LabelForDeployment(deployment), deployerPodName)
break
} else {
// We'll try again later on resync. Continue to process cancellations.
glog.V(2).Infof("Error getting deployer pod %s for deployment %s: %#v", deployerPodName, deployutil.LabelForDeployment(deployment), err)
}
}
// If the deployment is cancelled, terminate any deployer/hook pods.
// NOTE: Do not mark the deployment as Failed just yet.
// The deployment will be marked as Failed by the deployer pod controller
// when the deployer pod failure state is picked up
// Also, it will scale down the failed deployment and scale back up
// the last successful completed deployment
if deployutil.IsDeploymentCancelled(deployment) {
deployerPods, err := c.podClient.getDeployerPodsFor(deployment.Namespace, deployment.Name)
if err != nil {
return fmt.Errorf("couldn't fetch deployer pods for %s while trying to cancel deployment: %v", deployutil.LabelForDeployment(deployment), err)
}
glog.V(4).Infof("Cancelling %d deployer pods for deployment %s", len(deployerPods), deployutil.LabelForDeployment(deployment))
zeroDelay := int64(1)
for _, deployerPod := range deployerPods {
// Set the ActiveDeadlineSeconds on the pod so it's terminated very soon.
if deployerPod.Spec.ActiveDeadlineSeconds == nil || *deployerPod.Spec.ActiveDeadlineSeconds != zeroDelay {
deployerPod.Spec.ActiveDeadlineSeconds = &zeroDelay
if _, err := c.podClient.updatePod(deployerPod.Namespace, &deployerPod); err != nil {
c.recorder.Eventf(deployment, kapi.EventTypeWarning, "failedCancellation", "Error cancelling deployer pod %s for deployment %s: %v", deployerPod.Name, deployutil.LabelForDeployment(deployment), err)
return fmt.Errorf("couldn't cancel deployer pod %s for deployment %s: %v", deployerPod.Name, deployutil.LabelForDeployment(deployment), err)
}
glog.V(4).Infof("Cancelled deployer pod %s for deployment %s", deployerPod.Name, deployutil.LabelForDeployment(deployment))
}
}
c.recorder.Eventf(deployment, kapi.EventTypeNormal, "Cancelled", "Cancelled deployment")
}
case deployapi.DeploymentStatusFailed:
// Check for test deployment and ensure the deployment scale matches
if config, err := c.decodeConfig(deployment); err == nil && config.Spec.Test {
deploymentScaled = deployment.Spec.Replicas != 0
deployment.Spec.Replicas = 0
}
case deployapi.DeploymentStatusComplete:
// Check for test deployment and ensure the deployment scale matches
if config, err := c.decodeConfig(deployment); err == nil && config.Spec.Test {
deploymentScaled = deployment.Spec.Replicas != 0
deployment.Spec.Replicas = 0
}
// now list any pods in the namespace that have the specified label
deployerPods, err := c.podClient.getDeployerPodsFor(deployment.Namespace, deployment.Name)
if err != nil {
return fmt.Errorf("couldn't fetch deployer pods for %s after successful completion: %v", deployutil.LabelForDeployment(deployment), err)
}
if len(deployerPods) > 0 {
glog.V(4).Infof("Deleting %d deployer pods for deployment %s", len(deployerPods), deployutil.LabelForDeployment(deployment))
}
cleanedAll := true
for _, deployerPod := range deployerPods {
if err := c.podClient.deletePod(deployerPod.Namespace, deployerPod.Name); err != nil {
if !kerrors.IsNotFound(err) {
// if the pod deletion failed, then log the error and continue
// we will try to delete any remaining deployer pods and return an error later
utilruntime.HandleError(fmt.Errorf("couldn't delete completed deployer pod %s/%s for deployment %s: %v", deployment.Namespace, deployerPod.Name, deployutil.LabelForDeployment(deployment), err))
cleanedAll = false
}
// Already deleted
} else {
glog.V(4).Infof("Deleted completed deployer pod %s/%s for deployment %s", deployment.Namespace, deployerPod.Name, deployutil.LabelForDeployment(deployment))
}
}
if !cleanedAll {
return fmt.Errorf("couldn't clean up all deployer pods for %s", deployutil.LabelForDeployment(deployment))
}
}
if currentStatus != nextStatus || deploymentScaled {
deployment.Annotations[deployapi.DeploymentStatusAnnotation] = string(nextStatus)
if _, err := c.deploymentClient.updateDeployment(deployment.Namespace, deployment); err != nil {
c.recorder.Eventf(deployment, kapi.EventTypeWarning, "FailedUpdate", "Error updating deployment %s status to %s", deployutil.LabelForDeployment(deployment), nextStatus)
return fmt.Errorf("couldn't update deployment %s to status %s: %v", deployutil.LabelForDeployment(deployment), nextStatus, err)
}
glog.V(4).Infof("Updated deployment %s status from %s to %s (scale: %d)", deployutil.LabelForDeployment(deployment), currentStatus, nextStatus, deployment.Spec.Replicas)
}
return nil
}
func (c *DeploymentConfigController) Handle(config *deployapi.DeploymentConfig) error {
// There's nothing to reconcile until the version is nonzero.
if config.Status.LatestVersion == 0 {
glog.V(5).Infof("Waiting for first version of %q", deployutil.LabelForDeploymentConfig(config))
return c.updateStatus(config)
}
// Find all deployments owned by the deploymentConfig.
sel := deployutil.ConfigSelector(config.Name)
existingDeployments, err := c.kubeClient.ReplicationControllers(config.Namespace).List(kapi.ListOptions{LabelSelector: sel})
if err != nil {
return err
}
latestIsDeployed, latestDeployment := deployutil.LatestDeploymentInfo(config, existingDeployments)
// If the latest deployment doesn't exist yet, cancel any running
// deployments to allow them to be superceded by the new config version.
awaitingCancellations := false
if !latestIsDeployed {
for _, deployment := range existingDeployments.Items {
// Skip deployments with an outcome.
if deployutil.IsTerminatedDeployment(&deployment) {
continue
}
// Cancel running deployments.
awaitingCancellations = true
if !deployutil.IsDeploymentCancelled(&deployment) {
deployment.Annotations[deployapi.DeploymentCancelledAnnotation] = deployapi.DeploymentCancelledAnnotationValue
deployment.Annotations[deployapi.DeploymentStatusReasonAnnotation] = deployapi.DeploymentCancelledNewerDeploymentExists
_, err := c.kubeClient.ReplicationControllers(deployment.Namespace).Update(&deployment)
if err != nil {
c.recorder.Eventf(config, kapi.EventTypeWarning, "DeploymentCancellationFailed", "Failed to cancel deployment %q superceded by version %d: %s", deployment.Name, config.Status.LatestVersion, err)
} else {
c.recorder.Eventf(config, kapi.EventTypeNormal, "DeploymentCancelled", "Cancelled deployment %q superceded by version %d", deployment.Name, config.Status.LatestVersion)
}
}
}
}
// Wait for deployment cancellations before reconciling or creating a new
// deployment to avoid competing with existing deployment processes.
if awaitingCancellations {
c.recorder.Eventf(config, kapi.EventTypeNormal, "DeploymentAwaitingCancellation", "Deployment of version %d awaiting cancellation of older running deployments", config.Status.LatestVersion)
// raise a transientError so that the deployment config can be re-queued
return transientError(fmt.Sprintf("found previous inflight deployment for %s - requeuing", deployutil.LabelForDeploymentConfig(config)))
}
// If the latest deployment already exists, reconcile existing deployments
// and return early.
if latestIsDeployed {
// If the latest deployment is still running, try again later. We don't
// want to compete with the deployer.
if !deployutil.IsTerminatedDeployment(latestDeployment) {
return c.updateStatus(config)
}
return c.reconcileDeployments(existingDeployments, config)
}
// No deployments are running and the latest deployment doesn't exist, so
// create the new deployment.
deployment, err := deployutil.MakeDeployment(config, c.codec)
if err != nil {
return fatalError(fmt.Sprintf("couldn't make deployment from (potentially invalid) deployment config %s: %v", deployutil.LabelForDeploymentConfig(config), err))
}
created, err := c.kubeClient.ReplicationControllers(config.Namespace).Create(deployment)
if err != nil {
// If the deployment was already created, just move on. The cache could be
// stale, or another process could have already handled this update.
if errors.IsAlreadyExists(err) {
return c.updateStatus(config)
}
c.recorder.Eventf(config, kapi.EventTypeWarning, "DeploymentCreationFailed", "Couldn't deploy version %d: %s", config.Status.LatestVersion, err)
return fmt.Errorf("couldn't create deployment for deployment config %s: %v", deployutil.LabelForDeploymentConfig(config), err)
}
c.recorder.Eventf(config, kapi.EventTypeNormal, "DeploymentCreated", "Created new deployment %q for version %d", created.Name, config.Status.LatestVersion)
return c.updateStatus(config)
}
// Handle processes deployment and either creates a deployer pod or responds
// to a terminal deployment status. Since this controller started using caches,
// the provided rc MUST be deep-copied beforehand (see work() in factory.go).
func (c *DeploymentController) Handle(deployment *kapi.ReplicationController) error {
currentStatus := deployutil.DeploymentStatusFor(deployment)
nextStatus := currentStatus
deploymentScaled := false
deployerPodName := deployutil.DeployerPodNameForDeployment(deployment.Name)
deployer, deployerErr := c.getPod(deployment.Namespace, deployerPodName)
switch currentStatus {
case deployapi.DeploymentStatusNew:
// If the deployment has been cancelled, don't create a deployer pod.
// Instead try to delete any deployer pods found and transition the
// deployment to Pending so that the deployment config controller
// continues to see the deployment as in-flight. Eventually the deletion
// of the deployer pod should cause a requeue of this deployment and
// then it can be transitioned to Failed by this controller.
if deployutil.IsDeploymentCancelled(deployment) {
nextStatus = deployapi.DeploymentStatusPending
if err := c.cleanupDeployerPods(deployment); err != nil {
return err
}
break
}
// If the pod already exists, it's possible that a previous CreatePod
// succeeded but the deployment state update failed and now we're re-
// entering. Ensure that the pod is the one we created by verifying the
// annotation on it, and throw a retryable error.
if deployerErr != nil && !kerrors.IsNotFound(deployerErr) {
return fmt.Errorf("couldn't fetch existing deployer pod for %s: %v", deployutil.LabelForDeployment(deployment), deployerErr)
}
if deployerErr == nil && deployer != nil {
// Do a stronger check to validate that the existing deployer pod is
// actually for this deployment, and if not, fail this deployment.
//
// TODO: Investigate checking the container image of the running pod and
// comparing with the intended deployer pod image. If we do so, we'll need
// to ensure that changes to 'unrelated' pods don't result in updates to
// the deployment. So, the image check will have to be done in other areas
// of the code as well.
if deployutil.DeploymentNameFor(deployer) != deployment.Name {
nextStatus = deployapi.DeploymentStatusFailed
deployment.Annotations[deployapi.DeploymentStatusReasonAnnotation] = deployapi.DeploymentFailedUnrelatedDeploymentExists
c.emitDeploymentEvent(deployment, kapi.EventTypeWarning, "FailedCreate", fmt.Sprintf("Error creating deployer pod since another pod with the same name (%q) exists", deployer.Name))
glog.V(2).Infof("Couldn't create deployer pod for %s since an unrelated pod with the same name (%q) exists", deployutil.LabelForDeployment(deployment), deployer.Name)
} else {
// Update to pending relative to the existing validated deployer pod.
deployment.Annotations[deployapi.DeploymentPodAnnotation] = deployer.Name
nextStatus = deployapi.DeploymentStatusPending
glog.V(4).Infof("Detected existing deployer pod %s for deployment %s", deployer.Name, deployutil.LabelForDeployment(deployment))
}
// Don't try and re-create the deployer pod.
break
}
if _, ok := deployment.Annotations[deployapi.DeploymentIgnorePodAnnotation]; ok {
return nil
}
// Generate a deployer pod spec.
deployerPod, err := c.makeDeployerPod(deployment)
if err != nil {
return fatalError(fmt.Sprintf("couldn't make deployer pod for %s: %v", deployutil.LabelForDeployment(deployment), err))
}
// Create the deployer pod.
deploymentPod, err := c.pn.Pods(deployment.Namespace).Create(deployerPod)
// Retry on error.
if err != nil {
return actionableError(fmt.Sprintf("couldn't create deployer pod for %s: %v", deployutil.LabelForDeployment(deployment), err))
}
deployment.Annotations[deployapi.DeploymentPodAnnotation] = deploymentPod.Name
nextStatus = deployapi.DeploymentStatusPending
glog.V(4).Infof("Created deployer pod %s for deployment %s", deploymentPod.Name, deployutil.LabelForDeployment(deployment))
case deployapi.DeploymentStatusPending, deployapi.DeploymentStatusRunning:
switch {
case kerrors.IsNotFound(deployerErr):
nextStatus = deployapi.DeploymentStatusFailed
// If the deployment is cancelled here then we deleted the deployer in a previous
// resync of the deployment.
if !deployutil.IsDeploymentCancelled(deployment) {
deployment.Annotations[deployapi.DeploymentStatusAnnotation] = string(nextStatus)
deployment.Annotations[deployapi.DeploymentStatusReasonAnnotation] = deployapi.DeploymentFailedDeployerPodNoLongerExists
c.emitDeploymentEvent(deployment, kapi.EventTypeWarning, "Failed", fmt.Sprintf("Deployer pod %q has gone missing", deployerPodName))
glog.V(4).Infof("Failing deployment %q because its deployer pod %q disappeared", deployutil.LabelForDeployment(deployment), deployerPodName)
}
case deployerErr != nil:
// We'll try again later on resync. Continue to process cancellations.
glog.V(4).Infof("Error getting deployer pod %s for deployment %s: %v", deployerPodName, deployutil.LabelForDeployment(deployment), deployerErr)
default: /* err == nil */
// If the deployment has been cancelled, delete any deployer pods
// found and transition the deployment to Pending so that the
// deployment config controller continues to see the deployment
// as in-flight. Eventually the deletion of the deployer pod should
// cause a requeue of this deployment and then it can be transitioned
// to Failed by this controller.
if deployutil.IsDeploymentCancelled(deployment) {
if err := c.cleanupDeployerPods(deployment); err != nil {
return err
}
}
}
case deployapi.DeploymentStatusFailed:
// Check for test deployment and ensure the deployment scale matches
if config, err := deployutil.DecodeDeploymentConfig(deployment, c.codec); err == nil && config.Spec.Test {
deploymentScaled = deployment.Spec.Replicas != 0
deployment.Spec.Replicas = 0
}
// Try to cleanup once more a cancelled deployment in case hook pods
// were created just after we issued the first cleanup request.
if deployutil.IsDeploymentCancelled(deployment) {
if err := c.cleanupDeployerPods(deployment); err != nil {
return err
}
}
case deployapi.DeploymentStatusComplete:
// Check for test deployment and ensure the deployment scale matches
if config, err := deployutil.DecodeDeploymentConfig(deployment, c.codec); err == nil && config.Spec.Test {
deploymentScaled = deployment.Spec.Replicas != 0
deployment.Spec.Replicas = 0
}
if err := c.cleanupDeployerPods(deployment); err != nil {
return err
}
}
if deployutil.CanTransitionPhase(currentStatus, nextStatus) || deploymentScaled {
deployment.Annotations[deployapi.DeploymentStatusAnnotation] = string(nextStatus)
if _, err := c.rn.ReplicationControllers(deployment.Namespace).Update(deployment); err != nil {
return fmt.Errorf("couldn't update deployment %s to status %s: %v", deployutil.LabelForDeployment(deployment), nextStatus, err)
}
glog.V(4).Infof("Updated deployment %s status from %s to %s (scale: %d)", deployutil.LabelForDeployment(deployment), currentStatus, nextStatus, deployment.Spec.Replicas)
}
return nil
}
// Handle implements the loop that processes deployment configs. Since this controller started
// using caches, the provided config MUST be deep-copied beforehand (see work() in factory.go).
func (c *DeploymentConfigController) Handle(config *deployapi.DeploymentConfig) error {
// There's nothing to reconcile until the version is nonzero.
if config.Status.LatestVersion == 0 {
return c.updateStatus(config, []kapi.ReplicationController{})
}
// Find all deployments owned by the deployment config.
selector := deployutil.ConfigSelector(config.Name)
existingDeployments, err := c.rcStore.ReplicationControllers(config.Namespace).List(selector)
if err != nil {
return err
}
// In case the deployment config has been marked for deletion, merely update its status with
// the latest available information. Some deletions make take some time to complete so there
// is value in doing this.
if config.DeletionTimestamp != nil {
return c.updateStatus(config, existingDeployments)
}
latestIsDeployed, latestDeployment := deployutil.LatestDeploymentInfo(config, existingDeployments)
// If the latest deployment doesn't exist yet, cancel any running
// deployments to allow them to be superceded by the new config version.
awaitingCancellations := false
if !latestIsDeployed {
for i := range existingDeployments {
deployment := existingDeployments[i]
// Skip deployments with an outcome.
if deployutil.IsTerminatedDeployment(&deployment) {
continue
}
// Cancel running deployments.
awaitingCancellations = true
if !deployutil.IsDeploymentCancelled(&deployment) {
// Retry faster on conflicts
var updatedDeployment *kapi.ReplicationController
if err := kclient.RetryOnConflict(kclient.DefaultBackoff, func() error {
rc, err := c.rcStore.ReplicationControllers(deployment.Namespace).Get(deployment.Name)
if kapierrors.IsNotFound(err) {
return nil
}
if err != nil {
return err
}
copied, err := deployutil.DeploymentDeepCopy(rc)
if err != nil {
return err
}
copied.Annotations[deployapi.DeploymentCancelledAnnotation] = deployapi.DeploymentCancelledAnnotationValue
copied.Annotations[deployapi.DeploymentStatusReasonAnnotation] = deployapi.DeploymentCancelledNewerDeploymentExists
updatedDeployment, err = c.rn.ReplicationControllers(copied.Namespace).Update(copied)
return err
}); err != nil {
c.recorder.Eventf(config, kapi.EventTypeWarning, "DeploymentCancellationFailed", "Failed to cancel deployment %q superceded by version %d: %s", deployment.Name, config.Status.LatestVersion, err)
} else {
if updatedDeployment != nil {
// replace the current deployment with the updated copy so that a future update has a chance at working
existingDeployments[i] = *updatedDeployment
c.recorder.Eventf(config, kapi.EventTypeNormal, "DeploymentCancelled", "Cancelled deployment %q superceded by version %d", deployment.Name, config.Status.LatestVersion)
}
}
}
}
}
// Wait for deployment cancellations before reconciling or creating a new
// deployment to avoid competing with existing deployment processes.
if awaitingCancellations {
c.recorder.Eventf(config, kapi.EventTypeNormal, "DeploymentAwaitingCancellation", "Deployment of version %d awaiting cancellation of older running deployments", config.Status.LatestVersion)
return fmt.Errorf("found previous inflight deployment for %s - requeuing", deployutil.LabelForDeploymentConfig(config))
}
// If the latest deployment already exists, reconcile existing deployments
// and return early.
if latestIsDeployed {
// If the latest deployment is still running, try again later. We don't
// want to compete with the deployer.
if !deployutil.IsTerminatedDeployment(latestDeployment) {
return c.updateStatus(config, existingDeployments)
}
return c.reconcileDeployments(existingDeployments, config)
}
// If the config is paused we shouldn't create new deployments for it.
if config.Spec.Paused {
// in order for revision history limit cleanup to work for paused
// deployments, we need to trigger it here
if err := c.cleanupOldDeployments(existingDeployments, config); err != nil {
c.recorder.Eventf(config, kapi.EventTypeWarning, "DeploymentCleanupFailed", "Couldn't clean up deployments: %v", err)
}
return c.updateStatus(config, existingDeployments)
}
// No deployments are running and the latest deployment doesn't exist, so
// create the new deployment.
deployment, err := deployutil.MakeDeployment(config, c.codec)
if err != nil {
return fatalError(fmt.Sprintf("couldn't make deployment from (potentially invalid) deployment config %s: %v", deployutil.LabelForDeploymentConfig(config), err))
}
created, err := c.rn.ReplicationControllers(config.Namespace).Create(deployment)
if err != nil {
// If the deployment was already created, just move on. The cache could be
// stale, or another process could have already handled this update.
if kapierrors.IsAlreadyExists(err) {
return c.updateStatus(config, existingDeployments)
}
c.recorder.Eventf(config, kapi.EventTypeWarning, "DeploymentCreationFailed", "Couldn't deploy version %d: %s", config.Status.LatestVersion, err)
return fmt.Errorf("couldn't create deployment for deployment config %s: %v", deployutil.LabelForDeploymentConfig(config), err)
}
c.recorder.Eventf(config, kapi.EventTypeNormal, "DeploymentCreated", "Created new deployment %q for version %d", created.Name, config.Status.LatestVersion)
// As we've just created a new deployment, we need to make sure to clean
// up old deployments if we have reached our deployment history quota
existingDeployments = append(existingDeployments, *created)
if err := c.cleanupOldDeployments(existingDeployments, config); err != nil {
c.recorder.Eventf(config, kapi.EventTypeWarning, "DeploymentCleanupFailed", "Couldn't clean up deployments: %v", err)
}
return c.updateStatus(config, existingDeployments)
}
// TestCmdDeploy_retryOk ensures that a failed deployment can be retried.
func TestCmdDeploy_retryOk(t *testing.T) {
deletedPods := []string{}
config := deploytest.OkDeploymentConfig(1)
var updatedDeployment *kapi.ReplicationController
existingDeployment := deploymentFor(config, deployapi.DeploymentStatusFailed)
existingDeployment.Annotations[deployapi.DeploymentCancelledAnnotation] = deployapi.DeploymentCancelledAnnotationValue
existingDeployment.Annotations[deployapi.DeploymentStatusReasonAnnotation] = deployapi.DeploymentCancelledByUser
mkpod := func(name string) kapi.Pod {
return kapi.Pod{
ObjectMeta: kapi.ObjectMeta{
Name: name,
Labels: map[string]string{
deployapi.DeployerPodForDeploymentLabel: existingDeployment.Name,
},
},
}
}
existingDeployerPods := []kapi.Pod{
mkpod("prehook"), mkpod("posthook"), mkpod("deployerpod"),
}
kubeClient := &ktc.Fake{}
kubeClient.AddReactor("get", "replicationcontrollers", func(action ktc.Action) (handled bool, ret runtime.Object, err error) {
return true, existingDeployment, nil
})
kubeClient.AddReactor("update", "replicationcontrollers", func(action ktc.Action) (handled bool, ret runtime.Object, err error) {
updatedDeployment = action.(ktc.UpdateAction).GetObject().(*kapi.ReplicationController)
return true, updatedDeployment, nil
})
kubeClient.AddReactor("list", "pods", func(action ktc.Action) (handled bool, ret runtime.Object, err error) {
return true, &kapi.PodList{Items: existingDeployerPods}, nil
})
kubeClient.AddReactor("delete", "pods", func(action ktc.Action) (handled bool, ret runtime.Object, err error) {
deletedPods = append(deletedPods, action.(ktc.DeleteAction).GetName())
return true, nil, nil
})
o := &DeployOptions{kubeClient: kubeClient}
err := o.retry(config, ioutil.Discard)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if updatedDeployment == nil {
t.Fatalf("expected updated config")
}
if deployutil.IsDeploymentCancelled(updatedDeployment) {
t.Fatalf("deployment should not have the cancelled flag set anymore")
}
if deployutil.DeploymentStatusReasonFor(updatedDeployment) != "" {
t.Fatalf("deployment status reason should be empty")
}
sort.Strings(deletedPods)
expectedDeletions := []string{"deployerpod", "posthook", "prehook"}
if e, a := expectedDeletions, deletedPods; !reflect.DeepEqual(e, a) {
t.Fatalf("Not all deployer pods for the failed deployment were deleted.\nEXPECTED: %v\nACTUAL: %v", e, a)
}
if e, a := deployapi.DeploymentStatusNew, deployutil.DeploymentStatusFor(updatedDeployment); e != a {
t.Fatalf("expected deployment status %s, got %s", e, a)
}
}
// TestCmdDeploy_retryOk ensures that a failed deployment can be retried.
func TestCmdDeploy_retryOk(t *testing.T) {
deletedPods := []string{}
config := deploytest.OkDeploymentConfig(1)
var updatedDeployment *kapi.ReplicationController
existingDeployment := deploymentFor(config, deployapi.DeploymentStatusFailed)
existingDeployment.Annotations[deployapi.DeploymentCancelledAnnotation] = deployapi.DeploymentCancelledAnnotationValue
existingDeployment.Annotations[deployapi.DeploymentStatusReasonAnnotation] = deployapi.DeploymentCancelledByUser
existingDeployerPods := []kapi.Pod{
{ObjectMeta: kapi.ObjectMeta{Name: "prehook"}},
{ObjectMeta: kapi.ObjectMeta{Name: "posthook"}},
{ObjectMeta: kapi.ObjectMeta{Name: "deployerpod"}},
}
kubeClient := &ktc.Fake{}
kubeClient.ReactFn = func(action ktc.Action) (runtime.Object, error) {
switch a := action.(type) {
case ktc.GetActionImpl:
return existingDeployment, nil
case ktc.UpdateActionImpl:
updatedDeployment = a.GetObject().(*kapi.ReplicationController)
return updatedDeployment, nil
case ktc.ListActionImpl:
return &kapi.PodList{Items: existingDeployerPods}, nil
case ktc.DeleteActionImpl:
deletedPods = append(deletedPods, a.GetName())
return nil, nil
}
t.Fatalf("unexpected action: %+v", action)
return nil, nil
}
o := &DeployOptions{kubeClient: kubeClient}
err := o.retry(config, ioutil.Discard)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if updatedDeployment == nil {
t.Fatalf("expected updated config")
}
if deployutil.IsDeploymentCancelled(updatedDeployment) {
t.Fatalf("deployment should not have the cancelled flag set anymore")
}
if deployutil.DeploymentStatusReasonFor(updatedDeployment) != "" {
t.Fatalf("deployment status reason should be empty")
}
sort.Strings(deletedPods)
expectedDeletions := []string{"deployerpod", "posthook", "prehook"}
if e, a := expectedDeletions, deletedPods; !reflect.DeepEqual(e, a) {
t.Fatalf("Not all deployer pods for the failed deployment were deleted.\nEXPECTED: %v\nACTUAL: %v", e, a)
}
if e, a := deployapi.DeploymentStatusNew, deployutil.DeploymentStatusFor(updatedDeployment); e != a {
t.Fatalf("expected deployment status %s, got %s", e, a)
}
}
// Handle syncs pod's status with any associated deployment.
func (c *DeployerPodController) Handle(pod *kapi.Pod) error {
// Find the deployment associated with the deployer pod.
deploymentName := deployutil.DeploymentNameFor(pod)
if len(deploymentName) == 0 {
return nil
}
// Reject updates to anything but the main deployer pod
// TODO: Find a way to filter this on the watch side.
if pod.Name != deployutil.DeployerPodNameForDeployment(deploymentName) {
return nil
}
deployment := &kapi.ReplicationController{ObjectMeta: kapi.ObjectMeta{Namespace: pod.Namespace, Name: deploymentName}}
cached, exists, err := c.store.Get(deployment)
if err == nil && exists {
// Try to use the cache first. Trust hits and return them.
deployment = cached.(*kapi.ReplicationController)
} else {
// Double-check with the master for cache misses/errors, since those
// are rare and API calls are expensive but more reliable.
deployment, err = c.kClient.ReplicationControllers(pod.Namespace).Get(deploymentName)
}
// If the deployment for this pod has disappeared, we should clean up this
// and any other deployer pods, then bail out.
if err != nil {
// Some retrieval error occurred. Retry.
if !kerrors.IsNotFound(err) {
return fmt.Errorf("couldn't get deployment %s/%s which owns deployer pod %s/%s", pod.Namespace, deploymentName, pod.Name, pod.Namespace)
}
// Find all the deployer pods for the deployment (including this one).
opts := kapi.ListOptions{LabelSelector: deployutil.DeployerPodSelector(deploymentName)}
deployers, err := c.kClient.Pods(pod.Namespace).List(opts)
if err != nil {
// Retry.
return fmt.Errorf("couldn't get deployer pods for %s: %v", deployutil.LabelForDeployment(deployment), err)
}
// Delete all deployers.
for _, deployer := range deployers.Items {
err := c.kClient.Pods(deployer.Namespace).Delete(deployer.Name, kapi.NewDeleteOptions(0))
if err != nil {
if !kerrors.IsNotFound(err) {
// TODO: Should this fire an event?
glog.V(2).Infof("Couldn't delete orphaned deployer pod %s/%s: %v", deployer.Namespace, deployer.Name, err)
}
} else {
// TODO: Should this fire an event?
glog.V(2).Infof("Deleted orphaned deployer pod %s/%s", deployer.Namespace, deployer.Name)
}
}
return nil
}
currentStatus := deployutil.DeploymentStatusFor(deployment)
nextStatus := currentStatus
switch pod.Status.Phase {
case kapi.PodRunning:
nextStatus = deployapi.DeploymentStatusRunning
case kapi.PodSucceeded:
nextStatus = deployapi.DeploymentStatusComplete
config, decodeErr := c.decodeConfig(deployment)
// If the deployment was cancelled just prior to the deployer pod succeeding
// then we need to remove the cancel annotations from the complete deployment
// and emit an event letting users know their cancellation failed.
if deployutil.IsDeploymentCancelled(deployment) {
delete(deployment.Annotations, deployapi.DeploymentCancelledAnnotation)
delete(deployment.Annotations, deployapi.DeploymentStatusReasonAnnotation)
if decodeErr == nil {
c.recorder.Eventf(config, kapi.EventTypeWarning, "FailedCancellation", "Deployment %q succeeded before cancel recorded", deployutil.LabelForDeployment(deployment))
} else {
c.recorder.Event(deployment, kapi.EventTypeWarning, "FailedCancellation", "Succeeded before cancel recorded")
}
}
// Sync the internal replica annotation with the target so that we can
// distinguish deployer updates from other scaling events.
deployment.Annotations[deployapi.DeploymentReplicasAnnotation] = deployment.Annotations[deployapi.DesiredReplicasAnnotation]
if nextStatus == deployapi.DeploymentStatusComplete {
delete(deployment.Annotations, deployapi.DesiredReplicasAnnotation)
}
// reset the size of any test container, since we are the ones updating the RC
if decodeErr == nil && config.Spec.Test {
deployment.Spec.Replicas = 0
}
case kapi.PodFailed:
nextStatus = deployapi.DeploymentStatusFailed
// reset the size of any test container, since we are the ones updating the RC
if config, err := c.decodeConfig(deployment); err == nil && config.Spec.Test {
deployment.Spec.Replicas = 0
}
}
if deployutil.CanTransitionPhase(currentStatus, nextStatus) {
deployment.Annotations[deployapi.DeploymentStatusAnnotation] = string(nextStatus)
if _, err := c.kClient.ReplicationControllers(deployment.Namespace).Update(deployment); err != nil {
if kerrors.IsNotFound(err) {
return nil
}
return fmt.Errorf("couldn't update Deployment %s to status %s: %v", deployutil.LabelForDeployment(deployment), nextStatus, err)
}
glog.V(4).Infof("Updated deployment %s status from %s to %s (scale: %d)", deployutil.LabelForDeployment(deployment), currentStatus, nextStatus, deployment.Spec.Replicas)
// If the deployment was canceled, trigger a reconcilation of its deployment config
// so that the latest complete deployment can immediately rollback in place of the
// canceled deployment.
if nextStatus == deployapi.DeploymentStatusFailed && deployutil.IsDeploymentCancelled(deployment) {
// If we are unable to get the deployment config, then the deploymentconfig controller will
// perform its duties once the resync interval forces the deploymentconfig to be reconciled.
name := deployutil.DeploymentConfigNameFor(deployment)
kclient.RetryOnConflict(kclient.DefaultRetry, func() error {
config, err := c.client.DeploymentConfigs(deployment.Namespace).Get(name)
if err != nil {
return err
}
if config.Annotations == nil {
config.Annotations = make(map[string]string)
}
config.Annotations[deployapi.DeploymentCancelledAnnotation] = strconv.Itoa(config.Status.LatestVersion)
_, err = c.client.DeploymentConfigs(config.Namespace).Update(config)
return err
})
}
}
return nil
}
// TestCmdDeploy_retryOk ensures that a failed deployment can be retried.
func TestCmdDeploy_retryOk(t *testing.T) {
deletedPods := []string{}
config := deploytest.OkDeploymentConfig(1)
existingDeployment := deploymentFor(config, deployapi.DeploymentStatusFailed)
existingDeployment.Annotations[deployapi.DeploymentCancelledAnnotation] = deployapi.DeploymentCancelledAnnotationValue
existingDeployment.Annotations[deployapi.DeploymentStatusReasonAnnotation] = deployapi.DeploymentCancelledByUser
existingDeployerPods := []kapi.Pod{
{ObjectMeta: kapi.ObjectMeta{Name: "prehook"}},
{ObjectMeta: kapi.ObjectMeta{Name: "posthook"}},
{ObjectMeta: kapi.ObjectMeta{Name: "deployerpod"}},
}
var updatedDeployment *kapi.ReplicationController
commandClient := &deployCommandClientImpl{
GetDeploymentFn: func(namespace, name string) (*kapi.ReplicationController, error) {
return existingDeployment, nil
},
UpdateDeploymentConfigFn: func(config *deployapi.DeploymentConfig) (*deployapi.DeploymentConfig, error) {
t.Fatalf("unexpected call to UpdateDeploymentConfig")
return nil, nil
},
UpdateDeploymentFn: func(deployment *kapi.ReplicationController) (*kapi.ReplicationController, error) {
updatedDeployment = deployment
return deployment, nil
},
ListDeployerPodsForFn: func(namespace, name string) (*kapi.PodList, error) {
return &kapi.PodList{Items: existingDeployerPods}, nil
},
DeletePodFn: func(pod *kapi.Pod) error {
deletedPods = append(deletedPods, pod.Name)
return nil
},
}
c := &retryDeploymentCommand{client: commandClient}
err := c.retry(config, ioutil.Discard)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if updatedDeployment == nil {
t.Fatalf("expected updated config")
}
if deployutil.IsDeploymentCancelled(updatedDeployment) {
t.Fatalf("deployment should not have the cancelled flag set anymore")
}
if deployutil.DeploymentStatusReasonFor(updatedDeployment) != "" {
t.Fatalf("deployment status reason should be empty")
}
sort.Strings(deletedPods)
if !reflect.DeepEqual(deletedPods, []string{"deployerpod", "posthook", "prehook"}) {
t.Fatalf("Not all deployer pods for the failed deployment were deleted")
}
if e, a := deployapi.DeploymentStatusNew, deployutil.DeploymentStatusFor(updatedDeployment); e != a {
t.Fatalf("expected deployment status %s, got %s", e, a)
}
}
func (o CancelOptions) Run() error {
allErrs := []error{}
for _, info := range o.Infos {
config, ok := info.Object.(*deployapi.DeploymentConfig)
if !ok {
allErrs = append(allErrs, kcmdutil.AddSourceToErr("cancelling", info.Source, fmt.Errorf("expected deployment configuration, got %T", info.Object)))
}
if config.Spec.Paused {
allErrs = append(allErrs, kcmdutil.AddSourceToErr("cancelling", info.Source, fmt.Errorf("unable to cancel paused deployment %s/%s", config.Namespace, config.Name)))
}
mapping, err := o.Mapper.RESTMapping(kapi.Kind("ReplicationController"))
if err != nil {
return err
}
mutateFn := func(rc *kapi.ReplicationController) bool {
if deployutil.IsDeploymentCancelled(rc) {
kcmdutil.PrintSuccess(o.Mapper, false, o.Out, info.Mapping.Resource, info.Name, false, "already cancelled")
return false
}
patches := set.CalculatePatches([]*resource.Info{{Object: rc, Mapping: mapping}}, o.Encoder, func(*resource.Info) (bool, error) {
rc.Annotations[deployapi.DeploymentCancelledAnnotation] = deployapi.DeploymentCancelledAnnotationValue
rc.Annotations[deployapi.DeploymentStatusReasonAnnotation] = deployapi.DeploymentCancelledByUser
return true, nil
})
if len(patches) == 0 {
kcmdutil.PrintSuccess(o.Mapper, false, o.Out, info.Mapping.Resource, info.Name, false, "already cancelled")
return false
}
_, err := o.Clientset.ReplicationControllers(rc.Namespace).Patch(rc.Name, kapi.StrategicMergePatchType, patches[0].Patch)
if err != nil {
allErrs = append(allErrs, kcmdutil.AddSourceToErr("cancelling", info.Source, err))
return false
}
kcmdutil.PrintSuccess(o.Mapper, false, o.Out, info.Mapping.Resource, info.Name, false, "cancelling")
return true
}
deployments, cancelled, err := o.forEachControllerInConfig(config.Namespace, config.Name, mutateFn)
if err != nil {
allErrs = append(allErrs, kcmdutil.AddSourceToErr("cancelling", info.Source, err))
continue
}
if !cancelled {
latest := &deployments[0]
maybeCancelling := ""
if deployutil.IsDeploymentCancelled(latest) && !deployutil.IsTerminatedDeployment(latest) {
maybeCancelling = " (cancelling)"
}
timeAt := strings.ToLower(units.HumanDuration(time.Now().Sub(latest.CreationTimestamp.Time)))
fmt.Fprintf(o.Out, "No rollout is in progress (latest rollout #%d %s%s %s ago)\n",
deployutil.DeploymentVersionFor(latest),
strings.ToLower(string(deployutil.DeploymentStatusFor(latest))),
maybeCancelling,
timeAt)
}
}
return utilerrors.NewAggregate(allErrs)
}