build_build_image.yaml

name: Build FAST build docker image

on:
  push:
  workflow_dispatch:
    inputs:
      deploy:
        description: Deploy to packages
        type: boolean
        required: true
        default: false

permissions:
  contents: read
  packages: write

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v5

      - name: Set variables
        run: |
          FAST_VERSION=$(python3 get_latest_fast_version.py)
          echo "FAST_VERSION=$FAST_VERSION" >> "$GITHUB_ENV"
          IMAGE_NAME=ghcr.io/fast-imaging/fast-build:${FAST_VERSION}
          IMAGE_FILENAME=fast-build-${FAST_VERSION}.tar
          echo "IMAGE_NAME=$IMAGE_NAME" >> "$GITHUB_ENV"
          echo "IMAGE_FILENAME=$IMAGE_FILENAME" >> "$GITHUB_ENV"

      - name: Build
        run: |
          docker build . -f build.Dockerfile -t $IMAGE_NAME

      - name: Save docker image to file
        run: |
          docker save -o $IMAGE_FILENAME $IMAGE_NAME

      - name: Upload docker image file as artifact
        uses: actions/upload-artifact@v4
        with:
          name: ${{ env.IMAGE_FILENAME }}
          path: ${{ env.IMAGE_FILENAME }}
          if-no-files-found: error
          retention-days: 3

      - name: Test image
        run: |
          docker run --rm $IMAGE_NAME

      - name: Login to GitHub Container Registry
        if: ${{ inputs.deploy }}
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Push container
        if: ${{ inputs.deploy }}
        run: |
          docker push $IMAGE_NAME