GitLab CI/CD 之 environment

前言

上次我們做了一次使用 Docker、Docker Compose 與 Gitlab CI/CD 做一次自動化佈署上線，今天我們要來再來教一個 Gitlab CI/CD 中的 environment 這個 script 怎麼使用

environment 作用

environment 定義

deploy-to-development:
    stage: deploy
    environment:
        name: example service name
        url: https://www.example.com.tw

練習時間

接下來我們來開始撰寫 CI/CD，讓我們的環境可以自動定義好，不須再而外改來改去，我們使用上次的腳本稍微加個東西

在這裡我們在 .deploy 這個繼承工作，加了一個 SERVICE_NAME 這個 variables，用來準備定義環境名稱，並且加上 environment 這個 script，用來準備定義每個環境，每個 deploy 類的工作也跟著使用 SERVICE_NAME 這個變數定義環境名稱

image: mcr.microsoft.com/dotnet/sdk:6.0

stages:
    - deploy

.deploy:
    tags:
        - shell
    variables:
        SERVER_NAME: ""
        SERVER_PRIVATE_KEY: ""
        SERVER_USER_NAME: ""
        SERVER_URL: ""
        SERVER_PORT: ""
        SERVER_ENV: ""
    before_script:
        - eval $(ssh-agent -s)
        - ssh-add <(echo "$SERVER_PRIVATE_KEY")
        - echo $DOCKER_REGISTRY_PASSWORD | docker login -u $DOCKER_REGISTRY_USERNAME --password-stdin
    script:
        - ssh -o StrictHostKeyChecking=no $SERVER_USER_NAME@$SERVER_URL "
            mkdir -p ~/DotNetCoreWebApiCiAndCdCourse"
        - scp -o StrictHostKeyChecking=no ./docker-compose.yml $SERVER_USER_NAME@$SERVER_URL:~/DotNetCoreWebApiCiAndCdCourse
        - ssh -o StrictHostKeyChecking=no $SERVER_USER_NAME@$SERVER_URL "
            export COMPOSE_PROJECT_NAME=$SERVER_ENV
            export SERVER_ENV=$SERVER_ENV
            export SERVER_PORT=$SERVER_PORT

            cd ~/DotNetCoreWebApiCiAndCdCourse &&
            docker compose up --build -d"
    environment:
        name: $SERVER_NAME
        url: http://$SERVER_URL:$SERVER_PORT

deploy-to-development:
    stage: deploy
    tags:
        - shell
    variables:
        SERVER_NAME: DotNetCoreWebApiCiAndCdCourse development environment
        SERVER_PRIVATE_KEY: $DEV_SERVER_PRIVATE_KEY
        SERVER_USER_NAME: $DEV_SERVER_USER_NAME
        SERVER_URL: $DEV_SERVER_URL
        SERVER_PORT: 8080
        SERVER_ENV: development
    extends: .deploy

deploy-to-staging:
    stage: deploy
    tags:
        - shell
    variables:
        SERVER_NAME: DotNetCoreWebApiCiAndCdCourse staging environment
        SERVER_PRIVATE_KEY: $DEV_SERVER_PRIVATE_KEY
        SERVER_USER_NAME: $DEV_SERVER_USER_NAME
        SERVER_URL: $DEV_SERVER_URL
        SERVER_PORT: 8081
        SERVER_ENV: staging
    extends: .deploy
    needs:
        - deploy-to-development

deploy-to-production:
    stage: deploy
    tags:
        - shell
    variables:
        SERVER_NAME: DotNetCoreWebApiCiAndCdCourse production environment
        SERVER_PRIVATE_KEY: $DEV_SERVER_PRIVATE_KEY
        SERVER_USER_NAME: $DEV_SERVER_USER_NAME
        SERVER_URL: $DEV_SERVER_URL
        SERVER_PORT: 80
        SERVER_ENV: production
    extends: .deploy
    needs:
        - deploy-to-staging

接下來我們將這 CI/CD 工作上傳上去，可以看到以下工作都成功完成

回到我們環境，這裡可以看到我們的所有環境的連結都自動新增上去，每個環境都可以點 Open 按鈕，即可開啟我們目標主機連結