[ci/cd] github를 이용한 ci/cd 구축 - 1

1. github 접속

2. repo 메뉴 중 Actions

3. New workflow 생성

 

Docker image를 빌드 하기 위해 Docker image 선택

 

build code는 본인의 설정에 따라 맞추면 된다.

# https://docs.docker.com/build/ci/github-actions/#step-three-define-the-workflow-steps

# workflow 이름
name: Docker hub image build
# workflow에서 작업이 실행되는 조건 (push, pull, ...)
on:
  push:
    branches:
      - 'main'
    tags:
      - 'v*'

#작업에 대한 정의
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      ### repository check
      -
        name: Checkout
        uses: actions/checkout@v3
      ### image tag number
      -
        name: Set env
        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/v}" >> $GITHUB_ENV
      ### docker hub login
      -
        name: Login to DockerHub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      ### setup docker buildx
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
      ### meta https://github.com/docker/metadata-action
      -
        name: Docker meta
        id: docker_meta
          #uses: crazy-max/ghaction-docker-meta@v1
        uses: docker/metadata-action@v4
        with:
          images: junisduck/image_test
          tags: |
            ${{ github.repository_owner }}:latest
            ${{ github.repository_owner }}:${{ env.RELEASE_VERSION }}
      ### build and push docker image
      -
        name: Build and push
        uses: docker/build-push-action@v4
        with:
          context: .
          files: |
            ./Dockerfile
            ${{ steps.meta.outputs.bake-file }}
          platforms: linux/amd64
          push: true
          tags: ${{ steps.docker_meta.outputs.tags }}
          labels: ${{ steps.docker_meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

 

변수를 활용하기 위해 github repo의 Settings -> Secrets and variables -> Actions을 찾아가 변수를 지정해주면 된다.

slack 알림을 추가할거면 코드 마지막에 아래 내용을 추가

      ### slack notification
      -
        name: Slack Notification Demo
        uses: rtCamp/action-slack-notify@v2
        with:
          status: ${{ job.status }}
          author_name: dev(?)
          fields: repo,commit,message,author
          mention: here
          if_mention: failure,cancelled
        env:
          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
        if: always()

 

 

Docker Token 발급 방법

https://hub.docker.com/

Docker Hub Container Image Library | App Containerization

 

로그인 -> Account Settings -> Security -> New Access Token 생성 후 나오는 토큰 값 저장 -> 위에 변수 값 지정

 

Slack API Token 발급 방법

https://api.slack.com/apps

Slack API: Applications | Slack

로그인 -> Your apps -> Generate Token -> Workspace 선택 -> Grenerate

# curl -X POST -H 'Content-type: application/json' --data '{"text":"Hello, World!"}' https://hooks.slack.com/services/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

 

 

수정된 코드를 tag를 달아서 github에 push를 하게 되면 github와 docker hub에 tag 버전이 생성됨

git add .
git tag v1.0.22
git push origin v1.0.22

 

참고 사이트

https://docs.docker.com/build/ci/github-actions/

https://github.com/marketplace/actions/build-and-push-docker-images

https://api.slack.com/