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framework.go
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framework.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 framework
import (
"context"
"time"
clientset "github.com/apache/submarine/submarine-cloud-v2/pkg/client/clientset/versioned"
"github.com/pkg/errors"
corev1 "k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/tools/clientcmd"
)
type Framework struct {
KubeClient kubernetes.Interface
SubmarineClient clientset.Interface
Namespace *corev1.Namespace
OperatorPod *corev1.Pod
MasterHost string
DefaultTimeout time.Duration
}
func New(ns, kubeconfig, opImage, opImagePullPolicy string) (*Framework, error) {
cfg, err := clientcmd.BuildConfigFromFlags("", kubeconfig)
if err != nil {
return nil, errors.Wrap(err, "build config failed")
}
kubeClient, err := kubernetes.NewForConfig(cfg)
if err != nil {
return nil, errors.Wrap(err, "creating new kube-client fail")
}
// create submarine-operator namespace
namespace, err := kubeClient.CoreV1().Namespaces().Create(context.TODO(), &corev1.Namespace{
ObjectMeta: metav1.ObjectMeta{
Name: ns,
},
},
metav1.CreateOptions{})
if apierrors.IsAlreadyExists(err) {
namespace, err = kubeClient.CoreV1().Namespaces().Get(context.TODO(), ns, metav1.GetOptions{})
} else {
return nil, errors.Wrap(err, "create submarine operator namespace fail")
}
submarineClient, err := clientset.NewForConfig(cfg)
if err != nil {
return nil, errors.Wrap(err, "creating new submarine-client fail")
}
f := &Framework{
MasterHost: cfg.Host,
KubeClient: kubeClient,
SubmarineClient: submarineClient,
Namespace: namespace,
DefaultTimeout: time.Minute,
}
err = f.Setup(opImage, opImagePullPolicy)
if err != nil {
return nil, errors.Wrap(err, "setup test environment failed")
}
return f, nil
}
func (f *Framework) Setup(opImage, opImagePullPolicy string) error {
if err := f.setupOperator(opImage, opImagePullPolicy); err != nil {
return errors.Wrap(err, "setup operator failed")
}
return nil
}
func (f *Framework) setupOperator(opImage, opImagePullPolicy string) error {
// Deploy a submarine-operator
deploy := MakeOperatorDeployment()
if opImage != "" {
// Override operator image used, if specified when running tests.
deploy.Spec.Template.Spec.Containers[0].Image = opImage
}
for _, container := range deploy.Spec.Template.Spec.Containers {
container.ImagePullPolicy = corev1.PullPolicy(opImagePullPolicy)
}
err := CreateDeployment(f.KubeClient, f.Namespace.Name, deploy)
if err != nil {
return err
}
opts := metav1.ListOptions{LabelSelector: fields.SelectorFromSet(fields.Set(deploy.Spec.Template.ObjectMeta.Labels)).String()}
err = WaitForPodsReady(f.KubeClient, f.Namespace.Name, f.DefaultTimeout, 1, opts)
if err != nil {
return errors.Wrap(err, "failed to wait for operator to become ready")
}
pl, err := f.KubeClient.CoreV1().Pods(f.Namespace.Name).List(context.TODO(), opts)
if err != nil {
return err
}
f.OperatorPod = &pl.Items[0]
return nil
}
// Teardown ters down a previously initialized test environment
func (f *Framework) Teardown() error {
if err := f.KubeClient.AppsV1().Deployments(f.Namespace.Name).Delete(context.TODO(), "submarine-operator-demo", metav1.DeleteOptions{}); err != nil {
return errors.Wrap(err, "failed to delete deployment submarine-operator-demo")
}
if err := DeleteNamespace(f.KubeClient, f.Namespace.Name); err != nil && !apierrors.IsForbidden(err) {
return errors.Wrap(err, "failed to delete namespace")
}
return nil
}