update-base.yaml

name: Update docker base image

## Update the base image every day
on:
  workflow_dispatch:
  schedule:
  ## In UTC
  - cron: '0 0 * * *'

## Build base images to be used by other github workflows
jobs:

  build:
    name: Update base Erlang/OTP build images
    if: github.repository == 'erlang/otp'
    runs-on: ubuntu-latest

    permissions:
      contents: read
      packages: write

    strategy:
      matrix:
        type: [debian-base,ubuntu-base,i386-debian-base]
        branch: [master, maint, maint-26]
      fail-fast: false

    steps:
      - uses: actions/checkout@v4.1.1
        with:
          ref: ${{ matrix.branch }}
      - name: Docker login
        uses: docker/login-action@v3.0.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Build base image
        id: base
        run: >-
            BASE_TAG=ghcr.io/${{ github.repository_owner }}/otp/${{ matrix.type }}
            BASE_USE_CACHE=false
            .github/scripts/build-base-image.sh "${{ matrix.branch }}"
      - name: Push master image
        if: matrix.branch == 'master'
        run: docker push ${{ steps.base.outputs.BASE_TAG }}:latest
      - name: Tag and push base image
        run: |
            docker tag ${{ steps.base.outputs.BASE_TAG }}:latest \
              ${{ steps.base.outputs.BASE_TAG }}:${{ matrix.branch }}
            docker push ${{ steps.base.outputs.BASE_TAG }}:${{ matrix.branch }}