workflow-tester86.yml

name: Test 86 # Related to https://stackoverflow.com/questions/77043578/using-array-from-a-job-as-matrix-in-another-job?noredirect=1#comment135819303_77043578

on:
  push:
  workflow_dispatch:

jobs:
  identify-changes:
    runs-on: ubuntu-latest
    outputs: 
      matrix: ${{ steps.extract.outputs.matrix }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Extract Dockerfile paths
        id: extract
        run: |
          json_array_str="['directory1/Dockerfile','directory2/Dockerfile']"

          # Save JSON array to output
          echo "matrix=$json_array_str" >> $GITHUB_OUTPUT
          echo $json_array_str

  build:
    runs-on: ubuntu-latest
    needs: identify-changes
    continue-on-error : true

    strategy:
      matrix:
        dockerfile: ${{ fromJSON(needs.identify-changes.outputs.matrix) }}

    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Echo Docker images
        run: |
          echo ${{ matrix.dockerfile }}