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Add GitHub Actions workflow to build grade-python images
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‎.github/workflows/build.yml‎

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name: Build and push Docker image
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on:
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push:
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branches:
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- '*'
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jobs:
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prepare:
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name: Determine base tag and full tag
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runs-on: ubuntu-24.04
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outputs:
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base_tag: ${{ steps.tags.outputs.base_tag }}
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full_tag: ${{ steps.tags.outputs.full_tag }}
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steps:
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- name: Determine base tag and full tag
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id: tags
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run: |
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if [ "${GITHUB_REF_NAME#*-}" = "${GITHUB_REF_NAME}" ]; then
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if [ "${GITHUB_REF_NAME}" = "master" ]; then
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base=latest
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full=$base
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else
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base=${GITHUB_REF_NAME}
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full=$base
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fi
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echo "base_tag=$base" >> "$GITHUB_OUTPUT"
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echo "full_tag=$full" >> "$GITHUB_OUTPUT"
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else
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main=${GITHUB_REF_NAME%-*}
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base=${GITHUB_REF_NAME##*-}
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full=$main-$base
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if [ "${base#*u}" ]; then
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base=${base%%u*}
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fi
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echo "base_tag=$base" >> "$GITHUB_OUTPUT"
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echo "full_tag=$full" >> "$GITHUB_OUTPUT"
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fi
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build-base:
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name: Build base image (${{ matrix.platform }})
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runs-on: ${{ matrix.runner }}
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needs: prepare
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strategy:
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fail-fast: false
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matrix:
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include:
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- platform: linux/amd64
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runner: ubuntu-24.04
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- platform: linux/arm64
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runner: ubuntu-24.04-arm
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steps:
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- uses: actions/checkout@v4
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- name: Log in to Docker Hub
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uses: docker/login-action@v3
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with:
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username: ${{ secrets.DOCKERHUB_USERNAME }}
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password: ${{ secrets.DOCKERHUB_TOKEN }}
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- name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v3
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# Build and push platform-specific digest (no manifest tag yet)
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- name: Build and push by digest
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id: build
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uses: docker/build-push-action@v6
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with:
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context: .
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file: Dockerfile
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platforms: ${{ matrix.platform }}
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push: true
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build-args: |
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BASE_TAG=${{ needs.prepare.outputs.base_tag }}
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outputs: type=image,name=apluslms/grade-python,push-by-digest=true,name-canonical=true
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# Save the digest so the merge job can find it
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- name: Export digest
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run: |
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mkdir -p /tmp/digests
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digest="${{ steps.build.outputs.digest }}"
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touch "/tmp/digests/${digest#sha256:}"
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- name: Upload digest artifact
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uses: actions/upload-artifact@v4
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with:
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name: digest-base-${{ matrix.platform == 'linux/amd64' && 'amd64' || 'arm64' }}
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path: /tmp/digests/*
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retention-days: 1
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merge-base:
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name: Merge base manifests
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runs-on: ubuntu-24.04
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needs: build-base
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steps:
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- name: Download digests
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uses: actions/download-artifact@v4
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with:
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path: /tmp/digests
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pattern: digest-base-*
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merge-multiple: true
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- name: Log in to Docker Hub
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uses: docker/login-action@v3
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with:
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username: ${{ secrets.DOCKERHUB_USERNAME }}
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password: ${{ secrets.DOCKERHUB_TOKEN }}
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- name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v3
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- name: Determine tags
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id: meta
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uses: docker/metadata-action@v5
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with:
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images: apluslms/grade-python
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flavor: |
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latest=false
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tags: |
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type=raw,enable=${{ github.ref == 'refs/heads/master' }},value=latest
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type=ref,enable=${{ github.ref != 'refs/heads/master' }},event=branch
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- name: Create and push multi-arch manifest
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working-directory: /tmp/digests
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run: |
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docker buildx imagetools create \
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$(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
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$(printf 'apluslms/grade-python@sha256:%s ' *)
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build-math:
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name: Build math image (${{ matrix.platform }})
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runs-on: ${{ matrix.runner }}
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needs:
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- prepare
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- merge-base
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strategy:
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fail-fast: false
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matrix:
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include:
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- platform: linux/amd64
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runner: ubuntu-24.04
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- platform: linux/arm64
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runner: ubuntu-24.04-arm
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steps:
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- uses: actions/checkout@v4
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- name: Log in to Docker Hub
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uses: docker/login-action@v3
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with:
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username: ${{ secrets.DOCKERHUB_USERNAME }}
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password: ${{ secrets.DOCKERHUB_TOKEN }}
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- name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v3
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# Build and push platform-specific digest (no manifest tag yet)
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- name: Build and push by digest
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id: build
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uses: docker/build-push-action@v6
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with:
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context: .
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file: Dockerfile.math
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platforms: ${{ matrix.platform }}
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push: true
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build-args: |
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FULL_TAG=${{ needs.prepare.outputs.full_tag }}
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outputs: type=image,name=apluslms/grade-python,push-by-digest=true,name-canonical=true
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# Save the digest so the merge job can find it
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- name: Export digest
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run: |
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mkdir -p /tmp/digests
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digest="${{ steps.build.outputs.digest }}"
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touch "/tmp/digests/${digest#sha256:}"
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- name: Upload digest artifact
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uses: actions/upload-artifact@v4
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with:
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name: digest-math-${{ matrix.platform == 'linux/amd64' && 'amd64' || 'arm64' }}
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path: /tmp/digests/*
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retention-days: 1
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merge-math:
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name: Merge math manifests
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runs-on: ubuntu-24.04
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needs:
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- prepare
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- build-math
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steps:
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- name: Download digests
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uses: actions/download-artifact@v4
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with:
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path: /tmp/digests
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pattern: digest-math-*
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merge-multiple: true
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- name: Log in to Docker Hub
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uses: docker/login-action@v3
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with:
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username: ${{ secrets.DOCKERHUB_USERNAME }}
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password: ${{ secrets.DOCKERHUB_TOKEN }}
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- name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v3
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- name: Determine tags
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id: meta
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uses: docker/metadata-action@v5
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with:
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images: apluslms/grade-python
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flavor: |
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latest=false
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tags: |
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type=raw,enable=${{ github.ref == 'refs/heads/master' }},value=math-latest
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type=raw,enable=${{ github.ref != 'refs/heads/master' }},value=math-${{ needs.prepare.outputs.full_tag }}
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- name: Create and push multi-arch manifest
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working-directory: /tmp/digests
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run: |
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docker buildx imagetools create \
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$(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
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$(printf 'apluslms/grade-python@sha256:%s ' *)

‎Dockerfile‎

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ARG BASE_TAG=latest
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FROM --platform=$TARGETPLATFORM apluslms/grading-base:$BASE_TAG
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FROM apluslms/grading-base:$BASE_TAG
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COPY rootfs /
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‎Dockerfile.comp‎

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ARG FULL_TAG=latest
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FROM --platform=$TARGETPLATFORM apluslms/grade-python:$FULL_TAG
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FROM apluslms/grade-python:$FULL_TAG
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RUN pip_install \
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beautifulsoup4 \

‎Dockerfile.jupyter‎

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ARG FULL_TAG=latest
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FROM --platform=$TARGETPLATFORM apluslms/grade-python:ml-$FULL_TAG
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FROM apluslms/grade-python:ml-$FULL_TAG
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RUN pip_install \
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nbconvert~=7.2.9 \

‎Dockerfile.math‎

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ARG FULL_TAG=latest
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FROM --platform=$TARGETPLATFORM apluslms/grade-python:$FULL_TAG
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FROM apluslms/grade-python:$FULL_TAG
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RUN apt_install \
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bc \

‎Dockerfile.mec‎

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ARG FULL_TAG=latest
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FROM --platform=$TARGETPLATFORM apluslms/grade-python:math-$FULL_TAG
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FROM apluslms/grade-python:math-$FULL_TAG
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RUN pip_install \

‎Dockerfile.ml‎

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ARG FULL_TAG=latest
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FROM --platform=$TARGETPLATFORM apluslms/grade-python:math-$FULL_TAG
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FROM apluslms/grade-python:math-$FULL_TAG
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RUN pip_install \
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networkx==3.2.1 \

‎Dockerfile.ply‎

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ARG FULL_TAG=latest
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FROM --platform=$TARGETPLATFORM apluslms/grade-python:$FULL_TAG
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FROM apluslms/grade-python:$FULL_TAG
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# PLY is yet another implementation of lex and yacc for Python,
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# in other words, a parser and lexer generator.

‎Dockerfile.psql‎

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ARG FULL_TAG=latest
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FROM --platform=$TARGETPLATFORM apluslms/grade-python:$FULL_TAG
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FROM apluslms/grade-python:$FULL_TAG
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RUN apt_install \
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postgresql \

‎Dockerfile.rdf‎

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ARG FULL_TAG=latest
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FROM --platform=$TARGETPLATFORM apluslms/grade-python:$FULL_TAG
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FROM apluslms/grade-python:$FULL_TAG
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RUN apt_install \
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python3-rdflib \

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