Question

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一次将同一张图片推送到所有三个图片。

Answer 1

将图像从一个注册表移到另一个花药的官方方法是oc image mirror

例如，要将映像从 Docker Hub 复制到集成注册表，请使用以下命令：

$ oc image mirror docker.io/library/busybox:latest 172.30.0.0/16/myproject/toybox:latest

Answer 2

我会在自己选择的cicd /编排工具（例如Jenkins，Ansible Tower等）内部使用skopeo cli。 skopeo是一种命令行实用程序，可对容器图像和图像存储库执行各种操作。

请查看OpenShift官方博客帖子Promoting container images between container registries with skopeo中的示例用法。

他们在此处张贴的示例：

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=")
)
}
}
}
}
}
}
}

部署到多个OpenShift容器注册表

2 个答案: