Initial release

.github/workflows/docker-publish.yml

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+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+name: Create and publish a Docker image
+
+on:
+  workflow_dispatch:
+  release:
+    types: [published]
+  # push:
+  #   branches: ['release']
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile

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+FROM python:3.8.13-slim-bullseye
+
+RUN mkdir -p /usr/src
+COPY ./ /usr/src/
+
+WORKDIR /usr/src
+
+CMD [ "/main.py"]

docker-compose.prod.yml

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+# docker-compose --build
+version: "3"
+
+services:
+  devops-python-demo:
+    # build: .
+    image: ghcr.io/aditiio/devops-python-demo:latest
+    container_name: devops-python-demo
+    restart: always
+    environment:
+      - ENVIRONMENT=prod
+    ports:
+      - "7070:80"
+    expose:
+      - 80    
+    hostname: devops-python-demo.local
+    networks:
+      default:
+        ipv4_address: 172.19.0.253
+        aliases:
+          - devops-python-demo.local
+
+networks:
+  default:
+    external:
+      name: dw_bridge

main.py

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+print("Hello World, Python")