build and publish an image for use on planetpython.org

.github/workflows/publish-docker.yml

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+name: Publish
+on:
+  push:
+    branches:
+      - 'main'
+permissions:
+  contents: write
+  packages: write
+jobs:
+  release-to-ghcr:
+    concurrency:
+      group: release-to-ghcr
+      cancel-in-progress: false
+    runs-on: ${{ matrix.config.os }}
+    strategy:
+      matrix:
+        config:
+          - { os: ubuntu-24.04, arch: amd64 }
+          - { os: ubuntu-24.04-arm, arch: arm64 }
+    steps:
+      # Checkout push-to-registry action github repository
+      - name: Checkout Push to Registry action
+        uses: actions/checkout@v4
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Login To GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: Dockerfile.deploy
+          push: true
+          tags: |
+            ghcr.io/python/planetpython:${{ github.sha }}-${{ matrix.config.arch }}
+            ghcr.io/python/planetpython:latest-${{ matrix.config.arch }}
+
+  create-manifests:
+    runs-on: ubuntu-24.04-arm
+    needs: [release-to-ghcr]
+
+    steps:
+    - name: Checkout Push to Registry action
+      uses: actions/checkout@v4
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+    - name: Login To GHCR
+      uses: docker/login-action@v3
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+    - name: Create SHA image and push
+      run: |
+        docker buildx imagetools create \
+          --tag ghcr.io/python/planetpython:${{ github.sha }} \
+          ghcr.io/python/planetpython:${{ github.sha }}-amd64 \
+          ghcr.io/python/planetpython:${{ github.sha }}-arm64
+
+    - name: Create latest manifest and push
+      run: |
+        docker buildx imagetools create \
+          --tag ghcr.io/python/planetpython:latest \
+          ghcr.io/python/planetpython:latest-amd64 \
+          ghcr.io/python/planetpython:latest-arm64

Dockerfile.deploy

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+FROM python:2.7.18
+
+ENV PYTHONUNBUFFERED=1
+ENV PYTHONDONTWRITEBYTECODE=1
+
+RUN mkdir /planet
+WORKDIR /planet
+
+COPY code /planet/code
+COPY config /planet/config
+COPY static /planet/static
+
+