Added GitHub actions to build images; cleaned up dir structure for parameterized build

Author: kkrick-sdsu

.github/workflows/build.yml

@@ -0,0 +1,70 @@
+# .github/workflows/build.yml
+name: Build Jupyter Coder Images
+
+on:
+  workflow_dispatch:
+  push:
+    branches: [ main ]
+    paths:
+      - "images/**"
+      - ".github/workflows/build.yml"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    strategy:
+      fail-fast: false
+      matrix:
+        base:
+          - jupyter/minimal-notebook:latest
+          - jupyter/scipy-notebook:latest
+          # - jupyter/datascience-notebook:latest
+          # - jupyter/tensorflow-notebook:latest
+          # - jupyter/pytorch-notebook:latest
+          # - jupyter/r-notebook:latest
+          # - jupyter/all-spark-notebook:latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Derive image names
+        id: names
+        run: |
+          BASE="${{ matrix.base }}"
+          # e.g., jupyter/scipy-notebook:latest -> scipy-notebook
+          NAME="$(echo "$BASE" | awk -F'[/:]' '{print $(NF-1)}')"
+          echo "name=$NAME" >> $GITHUB_OUTPUT
+          # Tag scheme: ghcr.io/org/repo/<stack>:<upstream-tag>-coder
+          OWNER="$(echo '${{ github.repository_owner }}' | tr '[:upper:]' '[:lower:]')"
+          REPO="$(echo '${{ github.repository }}' | cut -d/ -f2 | tr '[:upper:]' '[:lower:]')"
+          echo "image=ghcr.io/$OWNER/$REPO/$NAME" >> $GITHUB_OUTPUT
+
+      - name: Build & Push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: images/jupyter/Dockerfile
+          build-args: |
+            BASE_IMAGE=${{ matrix.base }}
+          platforms: linux/amd64
+          push: true
+          tags: |
+            ${{ steps.names.outputs.image }}:latest
+            # Optional: mirror upstream tag (e.g., 2024-09-01), if you parse it.
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

images/jupyter/minimal/Dockerfile images/jupyter/Dockerfileimages/jupyter/minimal/Dockerfile renamed to images/jupyter/Dockerfile

@@ -14,7 +14,7 @@ RUN apt-get update && \
     locales \
     sudo \
     rclone \
-    && rm -rf /var/lib/apt/lists/*
+ && rm -rf /var/lib/apt/lists/*
 
 # Generate the desired locale (en_US.UTF-8)
 RUN locale-gen en_US.UTF-8