Leverage Matrices for DRY Workflow Management⌗

😓 Tired of repeating similar job definitions for different scenarios in your Github Workflow?

💡 Matrices offer a DRY (Don’t Repeat Yourself) approach to automation on GitHub.

📖 By defining variables and their combinations within a single job, you can automatically trigger multiple runs with specific configurations. Imagine building and pushing Docker images for various versions and registries effortlessly!

Benefits:

👨‍💻 Maintainable: Reduces code duplication and simplifies maintenance.

Scalable: Supports testing across diverse environments with ease.

Flexible: Adapts to evolving needs without requiring major code changes.

👩‍🔬 Example:

Suppose you need to build Docker images from multiple Dockerfile templates and push them to different container registries. Matrices can automate this process, saving you time and effort.

yaml Github Workflow


name: AWESOME SAMPLE MATRIX

on:
  push:
    branches:
      - main
jobs:
  braised-meat:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        foo:
          - original_foo
        bar:
          - value_1
          - value_2
        include:
          - bar: value_1
            buzz: buzz_1 # additional matrix
            foo: additional_foo # Additional element to array
          - bar: value_2
            buzz: buzz_2 # additional matrix
    steps:
      - name: Show matrix
        run: |
          echo "${{ matrix.foo }}"
          echo "${{ matrix.bar }}"
          echo "${{ matrix.buzz }}"