Jenkins Pipeline 推送 Docker 镜像

Question

我试图在构建源代码后推送我的 docker 镜像，当 jenkins 将镜像推送到 docker Hub Registry 时，我遇到了以下错误。

流水线脚本

stage('Build Docker Image') {
        container('docker') {
            echo 'docker'
            sh "docker build -t ${image_name} ."
            sh "docker tag ${image_name} ${image_name}:${image_tag}"          
        }
      } 

    stage('Push Docker Image') {
        container('docker') {
        withCredentials([string(credentialsId: 'DOCKER_HUB_CREDENTIALS', variable: 'DOCKER_HUB_CREDENTIALS')]) {
        sh "docker login -u user-name -p ${DOCKER_HUB_CREDENTIALS}"
          }
          sh "docker push ${image_name}:${image_tag}"
       }
    }

詹金斯日志

[Pipeline] // container
[Pipeline] }
[Pipeline] // stage
[Pipeline] stage
[Pipeline] { (Push Docker Image)
[Pipeline] container
[Pipeline] {
[Pipeline] withCredentials
Masking supported pattern matches of $DOCKER_HUB_CREDENTIALS
[Pipeline] {
[Pipeline] sh
+ docker login -u user-name -p ****
Login Succeeded
[Pipeline] }
[Pipeline] // withCredentials
[Pipeline] sh
+ docker push devopsimage.azure/frontend:bug-fix-2cbb925d
The push refers to repository [devopsimage.azure/frontend]
Get https://devopsimage.azure/v2/: dial tcp: lookup devopsimage.azure.io: Temporary failure in name resolution
[Pipeline] }
[Pipeline] // container
[Pipeline] }
[Pipeline] // stage
[Pipeline] }
[Pipeline] // node
[Pipeline] }
[Pipeline] // podTemplate
[Pipeline] End of Pipeline
ERROR: script returned exit code 1
Finished: FAILURE

你能请任何人帮助我吗？

Answer 1

如果您的镜像名称中有 dot(.) 在斜杠之前，docker 会将其视为注册表名称。 所以devopsimage.azure push 试图推送到名为devopsimage.azure注册表。 如果您确实想推送到 Docker Hub，请从映像名称中删除点。 如果您想推送到名为devopsimage.azure注册表，则在从构建机器解析此注册表时存在 DNS 问题。