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2. Building Jar And Docker Image

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Instead of building manually on our local machine, we will utilize GitHub Actions to automatically compile our JAR file and build our Docker Image on every push!

Automated Pipeline Workflow​

sequenceDiagram
    participant Dev as Developer
    participant GH as GitHub Repo
    participant Actions as GitHub Actions
    participant Docker as DockerHub

    Dev->>GH: git push
    GH->>Actions: Trigger Workflow
    Actions->>Actions: Build JAR (Maven)
    Actions->>Actions: Build Docker Image
    Actions->>Docker: Authenticate & Push

Setting up GitHub Actions​

1. Build JAR Pipeline​

Set up a CI/CD pipeline to compile the JAR file automatically. You can copy the template here: GitHub Template: buildjar.yml

2. Build Docker Image Pipeline​

Set up a CI/CD pipeline to build the Docker image from the compiled JAR file. You can copy the template here: GitHub Template: buildDockerImage.yml

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But we have not connected our DockerHub to GitHub yet! The pipeline will fail without proper authentication. We need to do that by making a Docker account and injecting secure tokens.

If you haven't created an account yet, follow the steps here: Creating DockerHub Account.