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Github Action ​

  • 소프트웨어 workflow 자동화 도구
  1. Workflow : 여러개의 Job로 구성되는 프로세스
  2. Event : Workflow를 실행하는 규칙 (특정시간 반복)
  3. Job : 여러 Step을 구성해서 실행
  4. Step : action을 실행 (ssh-action, scp-action 등)

Repository에 Github Action 추가 ​

  1. Github Repository > Actions > Java With Gradle > Configure
  2. root 폴더에서 /.github/workflows/gradle.yml 생성 > Start commit (기본 생성은 build까지 됨)
  3. GitAction Flow:

  • JDK Setup > Build > Upload Jar(upload-artifact) > Kill Service(ssh-action) > Download Jar(download-artifact) > Upload File to Server (scp-action) > Run Jar (ssh-action)

  • JDK Setup

    - uses: actions/checkout@v2
    - name: Set up JDK 11
      uses: actions/setup-java@v2
      with:
        java-version: '11'
        distribution: 'adopt'
  • Build
    - name: Build with Gradle
      uses: gradle/gradle-build-action@4137be6a8bf7d7133955359dbd952c0ca73b1021
      with:
        arguments: build
  • Upload Jar(upload-artifact)
    - name: Upload Jar
      uses: actions/upload-artifact@v2
      with:
        name: spring-boot
        path: build/libs/spring-0.0.1-SNAPSHOT.jar
        retention-days: 1
    - run: |
        rm -f ~/.gradle/caches/modules-2/modules-2.lock
        rm -f ~/.gradle/caches/modules-2/gc.properties
      name: Cleanup Gradle Cache
  • Kill Service(ssh-action)
    - uses: appleboy/ssh-action@v0.1.4
      name: Kill Spring Boot Application
      with:
        host: ${{ secrets.SERV_HOST }}
        username: ${{ secrets.SERV_USERNAME }}
        password: ${{ secrets.SERV_KEY }}
        script: |
          if [ -e "pid.file" ]; then
            kill $(cat ./pid.file)
          fi
  • Download Jar(download-artifact)
      - name: Download Jar
        uses: actions/download-artifact@v2
        with:
          name: spring-boot
  • Upload File to Server (scp-action)
      - name: SCP Files
        uses: appleboy/scp-action@master
        with:
          host: ${{ secrets.SERV_HOST }}
          username: ${{ secrets.SERV_USERNAME }}
          password: ${{ secrets.SERV_KEY }}
          source: "spring-0.0.1-SNAPSHOT.jar"
          target: "build"
          rm: true
  • Run Jar (ssh-action)
      - uses: appleboy/ssh-action@v0.1.4
        name: Run the application
        with:
          host: ${{ secrets.SERV_HOST }}
          username: ${{ secrets.SERV_USERNAME }}
          password: ${{ secrets.SERV_KEY }}
          script: |
            nohup java -jar build/spring-0.0.1-SNAPSHOT.jar > app.out 2> app.err < /dev/null &
            nohup echo $! > ./pid.file &

  1. secrets.SERV_HOST 등의 설정은 Github Repository > Settings > Secrets에서 추가 (workflow내에 설정이 가능하지만 보안문제가 있을 수 있음)

  2. Github Repository > Settings > Actions > 액션관련 설정 (Artifact and log retention을 7 days 정도로 설정하는 등 )

Server (Ubuntu) 설정 ​

  1. jdk 설치
bash
sudo apt install openjdk-11-jdk
java -version
  1. mysql 설치
bash
sudo apt-get install mysql-server
  1. 외부접속 기능 설정 (3306 port open)
bash
sudo ufw allow mysql
  1. mysql 실행
bash
sudo systemctl start mysql
  1. 서버 재시작시 자동 실행
bash
sudo systemctl enable mysql
  1. mysql 접속
bash
sudo /usr/bin/mysql -u root -p
  1. 비밀번호 설정
bash
SET PASSWORD FOR 'root'@'localhost' = PASSWORD('1234');
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '1234';
  1. mysql schema 추가
CREATE DATABASE testdb;

  1. 서버에 인바운드 포트 활성화

  2. mysql 외부접속 안될 때

bash
netstat -ntlp | grep mysqld
sudo /usr/bin/mysql -u root -p
mysql> show variables like '%bind%';
exit
cd /etc/mysql/mysql.conf.d
sudo vi mysqld.cnf
bind-address 변경 127.0.0.1 -> 0.0.0.0
systemctl restart mysql
systemctl status mysql
  1. mysql 제거
bash
sudo apt-get remove --purge mysql
sudo apt-get remove --purge mysql*
dpkg -l | grep mysql

sudo apt-get remove --purge mysql-apt-config

sudo rm -rf /etc/mysql /var/lib/mysql
sudo apt-get autoremove
sudo apt-get autoclean