docker-base-image.yml

name: Check docker image

on:
  schedule:
    - cron:  '20 4 * * *' # every day at 420 am
  workflow_dispatch:

env:
    IMAGE_NAME: gnzsnz/jupyter-quant
    BASE_IMAGE: python
    PLATFORMS: linux/amd64,linux/arm64

jobs:
    check_base:
        runs-on: ubuntu-latest
        outputs:
          needs-updating: ${{ steps.check.outputs.needs-updating }}
        steps:

          - name: Checkout
            uses: actions/checkout@v4

          - name: Get enviroment variables
            run: |
              grep -v '#' .env-dist | grep '=' > .env
              while IFS= read -r line; do
                  echo $line >> $GITHUB_ENV ;
              done < .env

          - name: Check if update available
            id: check
            uses: lucacome/docker-image-update-checker@v1
            with:
              base-image: ${{ env.BASE_IMAGE }}:${{ env.PYTHON_VERSION }}-slim
              image: ${{ env.IMAGE_NAME}}:${{ env.IMAGE_VERSION }}
              platforms: ${{ env.PLATFORMS }}

          - name: Set up QEMU
            uses: docker/setup-qemu-action@v3
            with:
              platforms: ${{ env.PLATFORMS }}

          - name: Set up Docker Buildx
            uses: docker/setup-buildx-action@v3

          - name: Docker metadata
            id: meta
            uses: docker/metadata-action@v5
            with:
              images: |
                ${{ env.IMAGE_NAME }}
                ghcr.io/${{ env.IMAGE_NAME }}
              flavor: |
                latest=true

          - name: Build Docker image
            uses: docker/build-push-action@v5
            with:
              push: false
              load: false
              cache-from: type=gha
              cache-to: type=gha,mode=max
              context: .
              build-args: |
                  USER=${{ env.USER }}
                  USER_ID=${{ env.USER_ID }}
                  USER_GID=${{ env.USER_GID }}
                  PYTHON_VERSION=${{ env.PYTHON_VERSION}}
              tags: ${{ env.IMAGE_NAME }}:${{ env.IMAGE_VERSION }}
              labels: ${{ steps.meta.outputs.labels }}

    build:
        runs-on: ubuntu-latest
        needs: check_base
        if: needs.check_base.outputs.needs-updating == 'true'
        steps:

          - name: Checkout
            uses: actions/checkout@v4

          - name: Get enviroment variables
            run: |
              grep -v '#' .env-dist | grep '=' > .env
              while IFS= read -r line; do
                  echo $line >> $GITHUB_ENV ;
              done < .env

          - name: Create issue
            id: create_issue
            env:
              GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
            run: |
              title="Base images updates found for ${{ env.IMAGE_NAME }}:${{ env.IMAGE_VERSION }}"
              body="A new build&publish might be needed."

              exists=$(gh issue list -S "is:issue state:open in:title $title" | wc -l)

              if [ -n "$exists" ] && [ "$exists" -gt 0 ]; then
                echo "dup_issue=yes" >> $GITHUB_OUTPUT
              else
                gh issue create -t "$title" -b "$body"
                echo "dup_issue=no" >> $GITHUB_OUTPUT
              fi

          - name: Set up QEMU
            uses: docker/setup-qemu-action@v3
            if: ${{ steps.create_issue.outputs.dup_issue == 'no' }}
            with:
              platforms: ${{ env.PLATFORMS }}

          - name: Set up Docker Buildx
            uses: docker/setup-buildx-action@v3
            if: ${{ steps.create_issue.outputs.dup_issue == 'no' }}

          - name: Docker metadata
            id: meta
            if: ${{ steps.create_issue.outputs.dup_issue == 'no' }}
            uses: docker/metadata-action@v5
            with:
              images: |
                ${{ env.IMAGE_NAME }}
                ghcr.io/${{ env.IMAGE_NAME }}
              flavor: |
                latest=true

          - name: Build Docker image
            uses: docker/build-push-action@v5
            if: ${{ steps.create_issue.outputs.dup_issue == 'no' }}
            with:
              push: false
              load: false
              cache-from: type=gha
              cache-to: type=gha,mode=max
              context: .
              build-args: |
                  USER=${{ env.USER }}
                  USER_ID=${{ env.USER_ID }}
                  USER_GID=${{ env.USER_GID }}
                  PYTHON_VERSION=${{ env.PYTHON_VERSION}}
              tags: ${{ env.IMAGE_NAME }}:${{ env.IMAGE_VERSION }}
              labels: ${{ steps.meta.outputs.labels }}