mirror of
https://github.com/arangodb/kube-arangodb.git
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101 lines
2.6 KiB
Go
101 lines
2.6 KiB
Go
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//
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// DISCLAIMER
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//
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// Copyright 2018 ArangoDB GmbH, Cologne, Germany
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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// Copyright holder is ArangoDB GmbH, Cologne, Germany
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//
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// Author Ewout Prangsma
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//
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package tests
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import (
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"crypto/sha1"
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"fmt"
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"strings"
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"time"
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"github.com/dchest/uniuri"
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appsv1 "k8s.io/api/apps/v1"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/client-go/kubernetes"
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"github.com/arangodb/kube-arangodb/pkg/util/retry"
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)
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// prepullImage runs a daemonset that pulls a given ArangoDB image on all nodes.
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func prepullArangoImage(cli kubernetes.Interface, image, namespace string) error {
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name := "prepuller-" + strings.ToLower(uniuri.NewLen(4))
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dsLabels := map[string]string{
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"app": "prepuller",
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"image-hash": fmt.Sprintf("%0x", sha1.Sum([]byte(image)))[:10],
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}
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ds := &appsv1.DaemonSet{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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Labels: dsLabels,
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},
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Spec: appsv1.DaemonSetSpec{
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Selector: &metav1.LabelSelector{
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MatchLabels: dsLabels,
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},
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Template: corev1.PodTemplateSpec{
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ObjectMeta: metav1.ObjectMeta{
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Labels: dsLabels,
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},
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Spec: corev1.PodSpec{
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Containers: []corev1.Container{
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corev1.Container{
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Name: "arango",
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Image: image,
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Env: []corev1.EnvVar{
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corev1.EnvVar{
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Name: "ARANGO_NO_AUTH",
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Value: "1",
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},
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},
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},
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},
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},
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},
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},
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}
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// Create DS
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if _, err := cli.AppsV1().DaemonSets(namespace).Create(ds); err != nil {
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return maskAny(err)
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}
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// Cleanup on exit
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defer func() {
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cli.AppsV1().DaemonSets(namespace).Delete(name, &metav1.DeleteOptions{})
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}()
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// Now wait for it to be ready
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op := func() error {
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current, err := cli.AppsV1().DaemonSets(namespace).Get(name, metav1.GetOptions{})
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if err != nil {
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return maskAny(err)
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}
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if current.Status.DesiredNumberScheduled > current.Status.NumberReady {
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return maskAny(fmt.Errorf("Expected %d pods to be ready, got %d", current.Status.DesiredNumberScheduled, current.Status.NumberReady))
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}
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return nil
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}
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if err := retry.Retry(op, time.Hour); err != nil {
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return maskAny(err)
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}
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return nil
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}
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