Start building a base image for analysis containers

.github/workflows/release-base-build+deploy.yaml

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+on:
+  push:
+    branches:
+      - 'master'
+    paths:
+      - 'release-base/**'
+  pull_request:
+    branches:
+      - 'master'
+    paths:
+      - 'release-base/**'
+
+jobs:
+  build:
+    name: Build & deploy ``release-base`` images
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - { platform: linux/amd64, arch: x86_64,  runner: ubuntu-24.04     }
+          - { platform: linux/arm64, arch: aarch64, runner: ubuntu-24.04-arm }
+    runs-on: ${{ matrix.runner }}
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v7
+      -
+        name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v6
+        with:
+          images: eoshep/release-base
+          tags: |
+            type=raw,value={{date 'YYYY-MM-DD'}}-{{sha}}
+            type=raw,value=latest
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v4
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v4
+      -
+        name: Login to DockerHub
+        uses: docker/login-action@v4
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      -
+        name: Build and push
+        id: build
+        uses: docker/build-push-action@v7
+        with:
+          push: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
+          context: release-base/${{ matrix.arch }}
+          platforms: ${{ matrix.platform }}
+          labels: ${{ steps.meta.outputs.labels }}
+          outputs: type=image,name=eoshep/release-base,push-by-digest=true,name-canonical=true,push=true
+      -
+        name: Export digest
+        run: |
+          mkdir -p /tmp/digests
+          digest="${{ steps.build.outputs.digest }}"
+          touch "/tmp/digests/${digest#sha256:}"
+      -
+        name: Upload digest
+        uses: actions/upload-artifact@v7
+        with:
+          name: digest-${{ matrix.arch }}
+          path: /tmp/digests/*
+          if-no-files-found: error
+          retention-days: 1
+
+  merge:
+    runs-on: ubuntu-latest
+    needs:
+      - build
+    steps:
+      -
+        name: Download digests
+        uses: actions/download-artifact@v8
+        with:
+          pattern: digest-*
+          path: /tmp/digests
+          merge-multiple: true
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v4
+      -
+        name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v6
+        with:
+          images: eoshep/release-base
+          tags: |
+            type=raw,value={{date 'YYYY-MM-DD'}}-{{sha}}
+            type=raw,value=latest
+      -
+        name: Login to Docker Hub
+        uses: docker/login-action@v4
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      -
+        name: Create manifest list and push
+        working-directory: /tmp/digests
+        run: |
+          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
+          $(printf 'eoshep/release-base@sha256:%s ' *)
+      -
+        name: Inspect image
+        run: |
+          docker buildx imagetools inspect eoshep/release-base:${{ steps.meta.outputs.version }}

release-base/aarch64/Dockerfile

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+FROM arm64v8/ubuntu:resolute-20260912
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get -qq update
+RUN apt-get install -y python3 python3-venv \
+    texlive-latex-base \
+    texlive-latex-extra cm-super dvipng
+
+# switch to ubuntu user and setup python virtual environment
+USER ubuntu
+ENV VIRTUAL_ENV=/home/ubuntu/.venv
+RUN python3 -m venv $VIRTUAL_ENV
+ENV PATH="$VIRTUAL_ENV/bin:$PATH"
+# install / upgrade pip and wheel
+RUN pip3 install --upgrade pip wheel

release-base/x86_64/Dockerfile

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+FROM amd64/ubuntu:resolute-20260912
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get -qq update
+RUN apt-get install -y python3 python3-venv \
+    texlive-latex-base \
+    texlive-latex-extra cm-super dvipng
+
+# switch to ubuntu user and setup python virtual environment
+USER ubuntu
+ENV VIRTUAL_ENV=/home/ubuntu/.venv
+RUN python3 -m venv $VIRTUAL_ENV
+ENV PATH="$VIRTUAL_ENV/bin:$PATH"
+# install / upgrade pip and wheel
+RUN pip3 install --upgrade pip wheel