This approach will deploy a spring boot MVC application to Tomcat in EC2 location. We will use two built-in mechanisms of Github

1. Action: For CI Part (Build Test etc)

and

2. Runner: For CD Part (Deployment )

<aside> 💡 Disclaimer: This approach is not an ideal approach for the production environment as CI and production server are in the same location here. This is why the tomcat server is stopped before the maven builds start, to avoid low configuration EC2 freeze conditions. Use it only for personal projects.

</aside>

Technology Used:

• Spring Boot MVC
• Tomcat 9
• AWS EC2
• Maven

Steps:

Step 1:Configure Workflow/Action for CI

• Go to your ‘X’ repository
• Open the “Action” Menu
• Choose Java with Maven as workflow
• Edit maven.yml as below or based on your need
• be careful about your app’s pom location
• commit and push a simple change
• Watch your first successful build
• Rectify if any problem occurs in your maven.yml

Step 2: Configure Runner for CD

• Go to Settings→Action→ Runner
• Choose a New Self-Hosted Runner (Linux or as per your requirement)
• Follow all Instruction
• Append 3 steps as shown below

For Step 1

Sample maven.yml

# This workflow will build a Java project with Maven, and cache/restore any dependencies to improve the workflow execution time
# For more information see: <https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven>

name: Java CI with Maven

on:
  push:
    branches: [ "main" ]
jobs:
  build:

    runs-on: self-hosted

    steps:
      - uses: actions/checkout@v3
      - name: Set up JDK 11
        uses: actions/setup-java@v3
        with:
          java-version: '11'
          distribution: 'temurin'
          cache: maven
      - name: stop tomcat
        run: sudo systemctl stop tomcat & rm -rf _work/prod-mnhmilu-server.com/prod-mnhmilu-server.com/demo/target/myblog.war
      - name: Build with Maven
        run: mvn -B package --file demo/pom.xml
      - name: Remove old myblog
        run: sudo rm -r /opt/tomcat/webapps/myblog
      - name: Copy to tomcat folder and start tomcat
        run: sudo cp -rf /home/ubuntu/actions-runner/_work/prod-mnhmilu-server.com/prod-mnhmilu-server.com/demo/target/myblog.war /opt/tomcat/webapps & sudo systemctl start tomcat