4969a05327
This a refactoring of framework/utils.go into framework/pod. Signed-off-by: Jorge Alarcon Ochoa <alarcj137@gmail.com>
125 lines
4.2 KiB
Go
125 lines
4.2 KiB
Go
/*
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Copyright 2019 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package pod
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import (
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"fmt"
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apps "k8s.io/api/apps/v1"
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batch "k8s.io/api/batch/v1"
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v1 "k8s.io/api/core/v1"
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extensions "k8s.io/api/extensions/v1beta1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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clientset "k8s.io/client-go/kubernetes"
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appsinternal "k8s.io/kubernetes/pkg/apis/apps"
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batchinternal "k8s.io/kubernetes/pkg/apis/batch"
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api "k8s.io/kubernetes/pkg/apis/core"
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extensionsinternal "k8s.io/kubernetes/pkg/apis/extensions"
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)
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// TODO: This function is generic enough and used enough that it should be
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// moved to its own subpkg.
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func getRuntimeObjectForKind(c clientset.Interface, kind schema.GroupKind, ns, name string) (runtime.Object, error) {
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switch kind {
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case api.Kind("ReplicationController"):
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return c.CoreV1().ReplicationControllers(ns).Get(name, metav1.GetOptions{})
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case extensionsinternal.Kind("ReplicaSet"), appsinternal.Kind("ReplicaSet"):
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return c.AppsV1().ReplicaSets(ns).Get(name, metav1.GetOptions{})
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case extensionsinternal.Kind("Deployment"), appsinternal.Kind("Deployment"):
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return c.AppsV1().Deployments(ns).Get(name, metav1.GetOptions{})
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case extensionsinternal.Kind("DaemonSet"):
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return c.AppsV1().DaemonSets(ns).Get(name, metav1.GetOptions{})
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case batchinternal.Kind("Job"):
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return c.BatchV1().Jobs(ns).Get(name, metav1.GetOptions{})
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default:
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return nil, fmt.Errorf("Unsupported kind when getting runtime object: %v", kind)
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}
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}
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// TODO: This function is generic enough and used enough that it should be
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// moved to its own subpkg.
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func getSelectorFromRuntimeObject(obj runtime.Object) (labels.Selector, error) {
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switch typed := obj.(type) {
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case *v1.ReplicationController:
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return labels.SelectorFromSet(typed.Spec.Selector), nil
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case *extensions.ReplicaSet:
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return metav1.LabelSelectorAsSelector(typed.Spec.Selector)
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case *apps.ReplicaSet:
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return metav1.LabelSelectorAsSelector(typed.Spec.Selector)
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case *extensions.Deployment:
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return metav1.LabelSelectorAsSelector(typed.Spec.Selector)
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case *apps.Deployment:
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return metav1.LabelSelectorAsSelector(typed.Spec.Selector)
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case *extensions.DaemonSet:
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return metav1.LabelSelectorAsSelector(typed.Spec.Selector)
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case *apps.DaemonSet:
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return metav1.LabelSelectorAsSelector(typed.Spec.Selector)
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case *batch.Job:
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return metav1.LabelSelectorAsSelector(typed.Spec.Selector)
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default:
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return nil, fmt.Errorf("Unsupported kind when getting selector: %v", obj)
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}
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}
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// TODO: This function is generic enough and used enough that it should be
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// moved to its own subpkg.
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func getReplicasFromRuntimeObject(obj runtime.Object) (int32, error) {
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switch typed := obj.(type) {
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case *v1.ReplicationController:
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if typed.Spec.Replicas != nil {
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return *typed.Spec.Replicas, nil
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}
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return 0, nil
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case *extensions.ReplicaSet:
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if typed.Spec.Replicas != nil {
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return *typed.Spec.Replicas, nil
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}
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return 0, nil
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case *apps.ReplicaSet:
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if typed.Spec.Replicas != nil {
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return *typed.Spec.Replicas, nil
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}
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return 0, nil
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case *extensions.Deployment:
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if typed.Spec.Replicas != nil {
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return *typed.Spec.Replicas, nil
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}
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return 0, nil
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case *apps.Deployment:
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if typed.Spec.Replicas != nil {
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return *typed.Spec.Replicas, nil
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}
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return 0, nil
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case *extensions.DaemonSet:
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return 0, nil
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case *apps.DaemonSet:
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return 0, nil
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case *batch.Job:
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// TODO: currently we use pause pods so that's OK. When we'll want to switch to Pods
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// that actually finish we need a better way to do this.
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if typed.Spec.Parallelism != nil {
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return *typed.Spec.Parallelism, nil
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}
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return 0, nil
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default:
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return -1, fmt.Errorf("Unsupported kind when getting number of replicas: %v", obj)
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}
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}
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