Add GitHub Action to build Cloud Framework containers

.github/workflows/cf-containers.yml

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+name: Cloud Framework Containers
+
+on: workflow_dispatch
+
+jobs:
+  pubsub-container:
+    name: "Build Pub/Sub Container"
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+    - name: Build Container
+      run: |
+        cd build
+        docker build . -f UET/Lib/Container/pubsub.Dockerfile --tag ghcr.io/redpointgames/uet/pubsub-emulator:latest
+    - name: Log in to the Container registry
+      uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
+      if: github.ref == 'refs/heads/main'
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+    - name: Push Container
+      if: github.ref == 'refs/heads/main'
+      run: |
+        docker push ghcr.io/redpointgames/uet/pubsub-emulator:latest
+  datastore-container:
+    name: "Build Datastore Container"
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+    - name: Build Container
+      run: |
+        cd build
+        docker build . -f UET/Lib/Container/datastore.Dockerfile --tag ghcr.io/redpointgames/uet/datastore-emulator:latest
+    - name: Log in to the Container registry
+      uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
+      if: github.ref == 'refs/heads/main'
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+    - name: Push Container
+      if: github.ref == 'refs/heads/main'
+      run: |
+        docker push ghcr.io/redpointgames/uet/datastore-emulator:latest

UET/Lib/Container/datastore.Dockerfile

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+FROM gcr.io/google.com/cloudsdktool/cloud-sdk:latest
+
+EXPOSE 9001
+ENV CLOUDSDK_CORE_PROJECT local-dev
+
+# DO NOT UNDER ANY CIRCUMSTANCES ADD THE --use-firestore-in-datastore-mode FLAG
+#
+# This flag does not properly emulate "Firestore in Datastore mode" and *actively* breaks
+# transaction integrity in the emulator, leading to transaction commits going through
+# when they should fail with contention errors.
+#
+ENTRYPOINT [ "gcloud", "beta", "emulators", "datastore", "start", "--host-port=0.0.0.0:9001", "--no-store-on-disk", "--consistency=1.0" ]

UET/Lib/Container/pubsub.Dockerfile

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+FROM gcr.io/google.com/cloudsdktool/cloud-sdk:latest
+
+EXPOSE 9000
+ENV CLOUDSDK_CORE_PROJECT local-dev
+
+ENTRYPOINT [ "gcloud", "beta", "emulators", "pubsub", "start", "--host-port=0.0.0.0:9000" ]