vendor files

vendor/k8s.io/kubernetes/pkg/kubectl/rollout_status.go

@@ -0,0 +1,153 @@
+/*
+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 kubectl
+
+import (
+	"fmt"
+
+	extensionsv1beta1 "k8s.io/api/extensions/v1beta1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/client-go/kubernetes"
+	clientappsv1beta1 "k8s.io/client-go/kubernetes/typed/apps/v1beta1"
+	clientextensionsv1beta1 "k8s.io/client-go/kubernetes/typed/extensions/v1beta1"
+	"k8s.io/kubernetes/pkg/apis/apps"
+	"k8s.io/kubernetes/pkg/controller/deployment/util"
+)
+
+// StatusViewer provides an interface for resources that have rollout status.
+type StatusViewer interface {
+	Status(namespace, name string, revision int64) (string, bool, error)
+}
+
+// StatusViewerFor returns a StatusViewer for the resource specified by kind.
+func StatusViewerFor(kind schema.GroupKind, c kubernetes.Interface) (StatusViewer, error) {
+	switch kind {
+	case extensionsv1beta1.SchemeGroupVersion.WithKind("Deployment").GroupKind(), apps.Kind("Deployment"):
+		return &DeploymentStatusViewer{c.Extensions()}, nil
+	case extensionsv1beta1.SchemeGroupVersion.WithKind("DaemonSet").GroupKind(), apps.Kind("DaemonSet"):
+		return &DaemonSetStatusViewer{c.Extensions()}, nil
+	case apps.Kind("StatefulSet"):
+		return &StatefulSetStatusViewer{c.AppsV1beta1()}, nil
+	}
+	return nil, fmt.Errorf("no status viewer has been implemented for %v", kind)
+}
+
+// DeploymentStatusViewer implements the StatusViewer interface.
+type DeploymentStatusViewer struct {
+	c clientextensionsv1beta1.DeploymentsGetter
+}
+
+// DaemonSetStatusViewer implements the StatusViewer interface.
+type DaemonSetStatusViewer struct {
+	c clientextensionsv1beta1.DaemonSetsGetter
+}
+
+// StatefulSetStatusViewer implements the StatusViewer interface.
+type StatefulSetStatusViewer struct {
+	c clientappsv1beta1.StatefulSetsGetter
+}
+
+// Status returns a message describing deployment status, and a bool value indicating if the status is considered done.
+func (s *DeploymentStatusViewer) Status(namespace, name string, revision int64) (string, bool, error) {
+	deployment, err := s.c.Deployments(namespace).Get(name, metav1.GetOptions{})
+	if err != nil {
+		return "", false, err
+	}
+	if revision > 0 {
+		deploymentRev, err := util.Revision(deployment)
+		if err != nil {
+			return "", false, fmt.Errorf("cannot get the revision of deployment %q: %v", deployment.Name, err)
+		}
+		if revision != deploymentRev {
+			return "", false, fmt.Errorf("desired revision (%d) is different from the running revision (%d)", revision, deploymentRev)
+		}
+	}
+	if deployment.Generation <= deployment.Status.ObservedGeneration {
+		cond := util.GetDeploymentCondition(deployment.Status, extensionsv1beta1.DeploymentProgressing)
+		if cond != nil && cond.Reason == util.TimedOutReason {
+			return "", false, fmt.Errorf("deployment %q exceeded its progress deadline", name)
+		}
+		if deployment.Spec.Replicas != nil && deployment.Status.UpdatedReplicas < *deployment.Spec.Replicas {
+			return fmt.Sprintf("Waiting for rollout to finish: %d out of %d new replicas have been updated...\n", deployment.Status.UpdatedReplicas, *deployment.Spec.Replicas), false, nil
+		}
+		if deployment.Status.Replicas > deployment.Status.UpdatedReplicas {
+			return fmt.Sprintf("Waiting for rollout to finish: %d old replicas are pending termination...\n", deployment.Status.Replicas-deployment.Status.UpdatedReplicas), false, nil
+		}
+		if deployment.Status.AvailableReplicas < deployment.Status.UpdatedReplicas {
+			return fmt.Sprintf("Waiting for rollout to finish: %d of %d updated replicas are available...\n", deployment.Status.AvailableReplicas, deployment.Status.UpdatedReplicas), false, nil
+		}
+		return fmt.Sprintf("deployment %q successfully rolled out\n", name), true, nil
+	}
+	return fmt.Sprintf("Waiting for deployment spec update to be observed...\n"), false, nil
+}
+
+// Status returns a message describing daemon set status, and a bool value indicating if the status is considered done.
+func (s *DaemonSetStatusViewer) Status(namespace, name string, revision int64) (string, bool, error) {
+	//ignoring revision as DaemonSets does not have history yet
+
+	daemon, err := s.c.DaemonSets(namespace).Get(name, metav1.GetOptions{})
+	if err != nil {
+		return "", false, err
+	}
+	if daemon.Spec.UpdateStrategy.Type != extensionsv1beta1.RollingUpdateDaemonSetStrategyType {
+		return "", true, fmt.Errorf("Status is available only for RollingUpdate strategy type")
+	}
+	if daemon.Generation <= daemon.Status.ObservedGeneration {
+		if daemon.Status.UpdatedNumberScheduled < daemon.Status.DesiredNumberScheduled {
+			return fmt.Sprintf("Waiting for rollout to finish: %d out of %d new pods have been updated...\n", daemon.Status.UpdatedNumberScheduled, daemon.Status.DesiredNumberScheduled), false, nil
+		}
+		if daemon.Status.NumberAvailable < daemon.Status.DesiredNumberScheduled {
+			return fmt.Sprintf("Waiting for rollout to finish: %d of %d updated pods are available...\n", daemon.Status.NumberAvailable, daemon.Status.DesiredNumberScheduled), false, nil
+		}
+		return fmt.Sprintf("daemon set %q successfully rolled out\n", name), true, nil
+	}
+	return fmt.Sprintf("Waiting for daemon set spec update to be observed...\n"), false, nil
+}
+
+// Status returns a message describing statefulset status, and a bool value indicating if the status is considered done.
+func (s *StatefulSetStatusViewer) Status(namespace, name string, revision int64) (string, bool, error) {
+	sts, err := s.c.StatefulSets(namespace).Get(name, metav1.GetOptions{})
+	if err != nil {
+		return "", false, err
+	}
+	if sts.Spec.UpdateStrategy.Type == apps.OnDeleteStatefulSetStrategyType {
+		return "", true, fmt.Errorf("%s updateStrategy does not have a Status`", apps.OnDeleteStatefulSetStrategyType)
+	}
+	if sts.Status.ObservedGeneration == nil || sts.Generation > *sts.Status.ObservedGeneration {
+		return "Waiting for statefulset spec update to be observed...\n", false, nil
+	}
+	if sts.Spec.Replicas != nil && sts.Status.ReadyReplicas < *sts.Spec.Replicas {
+		return fmt.Sprintf("Waiting for %d pods to be ready...\n", *sts.Spec.Replicas-sts.Status.ReadyReplicas), false, nil
+	}
+	if sts.Spec.UpdateStrategy.Type == apps.RollingUpdateStatefulSetStrategyType && sts.Spec.UpdateStrategy.RollingUpdate != nil {
+		if sts.Spec.Replicas != nil && sts.Spec.UpdateStrategy.RollingUpdate.Partition != nil {
+			if sts.Status.UpdatedReplicas < (*sts.Spec.Replicas - *sts.Spec.UpdateStrategy.RollingUpdate.Partition) {
+				return fmt.Sprintf("Waiting for partitioned roll out to finish: %d out of %d new pods have been updated...\n",
+					sts.Status.UpdatedReplicas, (*sts.Spec.Replicas - *sts.Spec.UpdateStrategy.RollingUpdate.Partition)), false, nil
+			}
+		}
+		return fmt.Sprintf("partitioned roll out complete: %d new pods have been updated...\n",
+			sts.Status.UpdatedReplicas), true, nil
+	}
+	if sts.Status.UpdateRevision != sts.Status.CurrentRevision {
+		return fmt.Sprintf("waiting for statefulset rolling update to complete %d pods at revision %s...\n",
+			sts.Status.UpdatedReplicas, sts.Status.UpdateRevision), false, nil
+	}
+	return fmt.Sprintf("statefulset rolling update complete %d pods at revision %s...\n", sts.Status.CurrentReplicas, sts.Status.CurrentRevision), true, nil
+
+}