build and publish docker image

.github/workflows/publish.yml

@@ -0,0 +1,37 @@
+name: Publish a Docker image
+
+on:
+  push:
+    branches: ['main']
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write 
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile

@@ -1,46 +1,28 @@
 # The builder image, used to build the virtual environment
-# from https://stackoverflow.com/questions/72465421/how-to-use-poetry-with-docker
 FROM python:3.11-bookworm AS builder
 
-# Configure Poetry
-ENV POETRY_VERSION=1.7.1
-ENV POETRY_HOME=/opt/poetry
-ENV POETRY_VENV=/opt/poetry-venv
+RUN pip install poetry==1.7.1
 
-# Tell Poetry where to place its cache and virtual environment
-ENV POETRY_CACHE_DIR=/opt/.cache
+ENV POETRY_NO_INTERACTION=1 \
+    POETRY_VIRTUALENVS_IN_PROJECT=1 \
+    POETRY_VIRTUALENVS_CREATE=1 \
+    POETRY_CACHE_DIR=/tmp/poetry_cache
 
-# Create stage for Poetry installation
-FROM builder AS poetry-base
+WORKDIR /api
 
-# Creating a virtual environment just for poetry and install it with pip
-RUN python3 -m venv ${POETRY_VENV} \
-    && ${POETRY_VENV}/bin/pip install -U pip setuptools \
-    && ${POETRY_VENV}/bin/pip install poetry==${POETRY_VERSION}
+COPY pyproject.toml poetry.lock ./
+RUN touch README.md
 
-# Create a new stage from the base python image
-FROM builder AS example-app
+RUN poetry install --without dev --no-root && rm -rf $POETRY_CACHE_DIR
 
-# Copy Poetry to app image
-COPY --from=poetry-base ${POETRY_VENV} ${POETRY_VENV}
+# The runtime image, used to just run the code provided its virtual environment
+FROM python:3.11-slim-bookworm AS runtime
 
-# Add Poetry to PATH
-ENV PATH="${PATH}:${POETRY_VENV}/bin"
+ENV VIRTUAL_ENV=/api/.venv \
+    PATH="/api/.venv/bin:$PATH"
 
-WORKDIR /app
+COPY --from=builder ${VIRTUAL_ENV} ${VIRTUAL_ENV}
 
-# Copy Dependencies
-COPY poetry.lock pyproject.toml ./
+# CMD ["hypercorn", "-b", "0.0.0.0:5000", "api:app"]
 
-# [OPTIONAL] Validate the project is properly configured
-RUN poetry check
-
-# Install Dependencies
-RUN poetry install --no-interaction --no-cache --without dev
-
-# Copy Application
-COPY . /app
-
-# Run Application
-EXPOSE $PORT
-CMD [ "poetry", "run", "python", "-m", "flask", "run", "--host=0.0.0.0" ]
+CMD ["poetry", "run", "start"]

docker-compose.yml

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+services:
+  web:
+    build: .
+    ports:
+      - "5000:5000"