gitlab-CICD共享runner基本配置

• 使用docker部署runner
• 多个项目使用共享runner
• 部署机器与runner不在同一台服务器上（使用ssh部署）

部署runner

• 部署镜像

docker pull gitlab/gitlab-runner:latest

docker run -d --name gitlab-runner-shared \
    --restart always \
    -v /var/run/docker.sock:/var/run/docker.sock \
    gitlab/gitlab-runner:latest

• 注册runner

docker exec -it gitlab-runner-shared gitlab-runner \
    register -n \
    --tag-list "gitlab-runner-shared" \
    --description "描述" \
    --url <私有gitlab地址> \
    --registration-token <项目/共享token> \
    --executor docker \
    --docker-privileged \
    --docker-image "alpine:latest" \
    --docker-pull-policy "if-not-present" \
    --docker-volumes "/var/run/docker.sock:/var/run/docker.sock"

SSH相关配置

• 在linux服务器使用ssh-keygen创建一个ssh key

ssh-keygen -t rsa -P "" ~/.ssh/id_rsa

• 推送到部署服务器上

ssh-copy-id -i ~/.ssh/id_rsa.pub <远程服务器ip>

• 测试登录

ssh <远程服务器登录名>@<远程服务器ip>
# 按提示输入密码

• 将私钥复制下来

cat ~/.ssh/id_rsa

• 将私钥设置到Gitlab的变量中（例如：SSH_PRIVATE_KEY）

• 远程部署（编写ci文件）

image_build:
  stage: build
  image: alpine:latest
  before_script:
    - sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories # 设置国内镜像源
    - 'which ssh-agent || ( apk update && apk add openssh-client )' # 安装ssh
    - eval $(ssh-agent -s)
    - echo "$SSH_PRIVATE_KEY" > deploy.key # 设置ssh私钥
    - chmod 0600 deploy.key # 设置私钥权限
    - ssh-add deploy.key # 添加到缓存中
    - mkdir -p ~/.ssh
    - '[[ -f /.dockerenv ]] && echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config' # 第一次登录不需要询问
  script:
    - ssh <用户名>@<服务器ip> "ls && exit" # 远程执行语句

使用docker打包

image-build:
  stage: build
  image: docker:18.09.7
  services:
    - docker:18.09.7-dind
  script:
    - docker build --no-cache -t <镜像>:<镜像tag> . # 生成镜像
    - docker login -u <docker用户名> -p <docker密码> <docker库地址> # 登录云端
    - docker push <镜像>:<镜像tag> # 镜像推送到云端
  after_script:
    - docker rmi -f <镜像>:<镜像tag> # 已上传云端，清理本地镜像，减少占用内存
  retry:
    max: 2
    when: always

通知（curl）

build-job-failure:
  stage: build-notify
  when: on_failure  # 失败时通知
  image: alpine:latest
  before_script:
    - sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories # 设置国内镜像源
    - apk update && apk add curl # 安装curl
  script:
    - if [ "$CI_COMMIT_REF_NAME" == "dev" ]; then env_name="dev"; else env_name="prod"; fi
    - echo '{"content":"@'$GITLAB_USER_LOGIN' '${CI_COMMIT_TITLE}'\n'$CI_PROJECT_NAME' 构建'$env_name'环境 [ 失败 ]"}' > content.json # 避免提交文字中有空格导致报错，使用json的方式
    - curl -X POST -H "Content-Type:application/json" -d @content.json "$NOTIFY_URL"

完整.gitlab-ci.yml

default:
    tags:
      - gitlab-runner-shared
 
variables:
  NOTIFY_URL: "通知地址"
  IMAGE_REPOSITORIES: "docker地址"
  IMAGE_NAME: "docker镜像名"
  SSH_USERNAME: "SSH用户名"
  SSH_IP: "部署服务端IP"

workflow:
  rules:
    - if: $CI_COMMIT_TITLE =~ /^[skip ci]/
      when: never
    - when: always

stages:
  - build
  - deploy
  - notify

# 使用docker构建镜像
image-build:
  stage: build
  image: docker:18.09.7
  services:
    - docker:18.09.7-dind
  script:
    - docker build --no-cache -t $IMAGE_NAME:$CI_COMMIT_REF_NAME .
    - docker login -u $IMAGE_REPOSITORY_USER -p $IMAGE_REPOSITORY_PASSWORD $IMAGE_REPOSITORIES
    - docker push $IMAGE_NAME:$CI_COMMIT_REF_NAME
  after_script:
    - docker rmi -f $IMAGE_NAME:$CI_COMMIT_REF_NAME
  retry:
    max: 2
    when: always

# 部署镜像
image-deploy:
  stage: deploy
  image: alpine:latest
  rules:
    - if: $CI_COMMIT_REF_NAME == "dev"
      variables:
        PORT: "8180"
    - if: $CI_COMMIT_REF_NAME == "master"
      variables:
        PORT: "8181"
  before_script:
    - sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
    - 'which ssh-agent || ( apk update && apk add openssh-client )'
    - eval $(ssh-agent -s)
    - echo "$SSH_PRIVATE_KEY" > deploy.key
    - chmod 0600 deploy.key
    - ssh-add deploy.key
    - mkdir -p ~/.ssh
    - '[[ -f /.dockerenv ]] && echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config'
  script:
    - ssh $SSH_USERNAME@$SSH_IP "docker rm -f frontend-$CI_COMMIT_REF_NAME && docker run -itd --restart=always --name frontend-$CI_COMMIT_REF_NAME -p $PORT:80 $IMAGE_NAME:$CI_COMMIT_REF_NAME && exit"
  retry:
    max: 2
    when: always

success:
  stage: notify
  when: on_success
  image: alpine:latest
  before_script:
    - sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
    - apk update && apk add curl
  script:
    - if [ "$CI_COMMIT_REF_NAME" == "dev" ]; then env_name="dev"; else env_name="prod"; fi
    - echo '{"content":"@'$GITLAB_USER_NAME'\n'$CI_PROJECT_NAME' 部署'$env_name'环境 [ 成功 ]\n'${CI_COMMIT_TITLE}'"}' > content.json
    - curl -X POST -H "Content-Type:application/json" -d @content.json "$NOTIFY_URL"
  retry:
    max: 2
    when: always

failure:
  stage: notify
  when: on_failure
  image: alpine:latest
  before_script:
    - sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
    - apk update && apk add curl
  script:
    - if [ "$CI_COMMIT_REF_NAME" == "dev" ]; then env_name="dev"; else env_name="prod"; fi
    - echo '{"content":"@'$GITLAB_USER_NAME'\n'$CI_PROJECT_NAME' 部署'$env_name'环境 [ 失败 ]\n'${CI_COMMIT_TITLE}'\n'$CI_PIPELINE_URL'"}' > content.json
    - curl -X POST -H "Content-Type:application/json" -d @content.json "$NOTIFY_URL"
  retry:
    max: 2
    when: always

参考文章：

gitlab ssh ci文件

apline ssh 免密登录