constructa-starter/.github/workflows/build.yml at main · instructa/constructa-starter · GitHub

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name: build-image

on:
  push:
    branches: [main]
  workflow_dispatch: {}

permissions:
  contents: read
  packages: write

jobs:
  build:
    runs-on: ubuntu-latest
    outputs:
      image: ${{ steps.meta.outputs.image }}
      tag: ${{ steps.meta.outputs.tag }}
    steps:
      - uses: actions/checkout@v4

      - name: Compute image metadata
        id: meta
        run: |
          IMAGE="ghcr.io/${GITHUB_REPOSITORY}/app"
          TAG="${GITHUB_SHA}"
          echo "image=${IMAGE}" >> "$GITHUB_OUTPUT"
          echo "tag=${TAG}" >> "$GITHUB_OUTPUT"

      - name: Log in to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build & push
        uses: docker/build-push-action@v6
        with:
          context: .
          push: true
          tags: |
            ${{ steps.meta.outputs.image }}:${{ steps.meta.outputs.tag }}
            ${{ steps.meta.outputs.image }}:latest