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docker - 部署到多个 OpenShift Container Registry

问题描述

我创建了三个 openshift 容器注册表。例如，我将使用以下地址：

https://openshift-registry-1.com
https://openshift-registry-2.com
https://openshift-registry-3.com

我正在寻找一种方法或工具来将相同的图像推送到所有三个动作中。

标签： dockerkubernetesopenshift

解决方案

我会在我选择的 cicd/orchestration 工具（例如 Jenkins、Ansible Tower 等）中使用skopeo cli。skopeo 是一个命令行实用程序，可对容器映像和映像存储库执行各种操作。

查看官方 OpenShift 博客文章Promoting container images between container registries with skopeo示例用法。

他们在那里发布的示例：

def namespace, appReleaseTag, webReleaseTag, prodCluster, prodProject, prodToken

pipeline {
agent {
label 'skopeo'
}
stages {
stage('Choose Release Version') {
steps {
script {
openshift.withCluster() {
// Login to the production cluster
namespace = openshift.project()
prodCluster = env.PROD_MASTER.replace("https://","insecure://")
withCredentials([usernamePassword(credentialsId: "${namespace}-prod-credentials", usernameVariable: "PROD_USER", passwordVariable: "PROD_TOKEN")]) {
prodToken = env.PROD_TOKEN
}

// Get list of tags in the ImageStream to show the release-manager
def appTags = openshift.selector("istag").objects().collect { it.metadata.name }.findAll { it.startsWith 'app:' }.collect { it.replaceAll(/app:(.*)/, "\$1") }.sort()
timeout(5) {
def inputs = input(
ok: "Deploy",
message: "Enter release version to promote to PROD",
parameters: [
string(defaultValue: "prod", description: 'Name of the PROD project to create', name: 'PROD Project Name'),
choice(choices: appTags.join('\n'), description: '', name: 'Application Release Version'),
]
)
appReleaseTag = inputs['Application Release Version']
prodProject = inputs['PROD Project Name']
}
}
}
}
}
stage('Create PROD') {
steps {
script {
openshift.withCluster(prodCluster, prodToken) {
openshift.newProject(prodProject, "--display-name='CoolStore PROD'")
}
}
}
}
stage('Promote Images to PROD') {
steps {
script {
openshift.withCluster() {
def srcApplicationRef = openshift.selector("istag", "app:${appReleaseTag}").object().image.dockerImageReference
def destApplicationRef = "${env.PROD_REGISTRY}/${prodProject}/app:${appReleaseTag}"
def srcToken = readFile "/run/secrets/kubernetes.io/serviceaccount/token"
sh "skopeo copy docker://${srcApplicationRef} docker://${destApplicationRef} --src-creds openshift:${srcToken} --dest-creds openshift:${prodToken}"
}
}
}
}
stage('Deploy to PROD') {
steps {
script {
openshift.withCluster(prodCluster, prodToken) {
openshift.withProject(prodProject) {
def template = 'https://raw.githubusercontent.com/openshift-labs/myapp/myapp-template.yaml'
openshift.apply(
openshift.process("-f", template, "-p", "APPLICATION_IMAGE_VERSION=${appReleaseTag}", "-p", "IMAGE_NAMESPACE=")
)
}
}
}
}
}
}
}

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