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deployment.go
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deployment.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"
"fmt"
"time"
"github.com/pkg/errors"
appsv1 "k8s.io/api/apps/v1"
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/util/wait"
"k8s.io/apimachinery/pkg/util/yaml"
"k8s.io/client-go/kubernetes"
)
func MakeDeployment(pathToYaml string) (*appsv1.Deployment, error) {
manifest, err := PathToOSFile(pathToYaml)
if err != nil {
return nil, err
}
deployment := appsv1.Deployment{}
if err := yaml.NewYAMLOrJSONDecoder(manifest, 100).Decode(&deployment); err != nil {
return nil, errors.Wrap(err, fmt.Sprintf("failed to decode file %s", pathToYaml))
}
return &deployment, nil
}
func MakeOperatorDeployment() *appsv1.Deployment {
name := "submarine-operator-demo"
var replicas int32 = 1
image := "apache/submarine:operator-0.8.0-SNAPSHOT"
return &appsv1.Deployment{
ObjectMeta: metav1.ObjectMeta{
Name: name,
Labels: map[string]string{
"app": name,
},
},
Spec: appsv1.DeploymentSpec{
Replicas: &replicas,
Selector: &metav1.LabelSelector{
MatchLabels: map[string]string{
"app": name,
},
},
Template: corev1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
Labels: map[string]string{
"app": name,
},
},
Spec: corev1.PodSpec{
ServiceAccountName: "submarine-operator",
Containers: []corev1.Container{
{
Name: name,
Image: image,
ImagePullPolicy: "IfNotPresent",
},
},
},
},
},
}
}
func CreateDeployment(kubeClient kubernetes.Interface, namespace string, d *appsv1.Deployment) error {
_, err := kubeClient.AppsV1().Deployments(namespace).Create(context.TODO(), d, metav1.CreateOptions{})
if err != nil {
return errors.Wrap(err, fmt.Sprintf("failed to create deployment %s", d.Name))
}
return nil
}
func DeleteDeployment(kubeClient kubernetes.Interface, namespace, name string) error {
d, err := kubeClient.AppsV1().Deployments(namespace).Get(context.TODO(), name, metav1.GetOptions{})
if err != nil {
return err
}
zero := int32(0)
d.Spec.Replicas = &zero
d, err = kubeClient.AppsV1().Deployments(namespace).Update(context.TODO(), d, metav1.UpdateOptions{})
if err != nil {
return err
}
return kubeClient.AppsV1().Deployments(namespace).Delete(context.TODO(), d.Name, metav1.DeleteOptions{})
}
func WaitUntilDeploymentGone(kubeClient kubernetes.Interface, namespace, name string, timeout time.Duration) error {
return wait.Poll(time.Second, timeout, func() (bool, error) {
_, err := kubeClient.
AppsV1().Deployments(namespace).
Get(context.TODO(), name, metav1.GetOptions{})
if err != nil {
if apierrors.IsNotFound(err) {
return true, nil
}
return false, err
}
return false, nil
})
}