add: dockerfile & actions

.github/workflows/main.yaml

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+name: Container Build for certificate-manager
+
+on:
+  push:
+    branches:
+      - "master"
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    environment:
+        name: prod
+    steps:
+      - uses: actions/checkout@v3
+      -
+        name: Checkout
+        uses: actions/checkout@v3
+      -
+        name: Login to Docker Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ secrets.REGISTRY }}
+          username: ${{ secrets.REGISTRY_USER }}
+          password: ${{ secrets.REGISTRY_PASS }}
+      -
+        name: certificate-manager
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          platforms: linux/amd64
+          push: true
+          tags: "${{ secrets.REGISTRY }}/tmnf-replay-server:latest"

Dockerfile

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+FROM python:3.9-slim-buster
+
+RUN apt update
+RUN apt install python3-pip -y
+RUN python3 -m pip install --upgrade pip
+RUN apt install curl -y
+RUN apt autoremove -y
+RUN apt clean
+
+WORKDIR /app
+COPY ./ .
+
+RUN python3 -m pip install waitress
+
+COPY req.txt .
+RUN python3 -m pip install --no-cache-dir -r req.txt
+
+EXPOSE 5000/tcp
+
+ENTRYPOINT ["waitress-serve"] 
+CMD ["--host", "0.0.0.0", "--port", "5000", "--call", "app:createApp"]

req.txt

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+flask
+flask-sqlalchemy
+pygbx
+werkzeug