flask: dev envs support & misc improvements (#263)
* Docker Desktop Development Environments config * Use cache volumes for pip * Upgrade from Python 3.7 -> Python 3.10 * Use port `8000` to avoid conflicts with Airplay on macOS for default Flask port `5000` * Use `SIGINT` to gracefully stop Flask Signed-off-by: Milas Bowman <milas.bowman@docker.com>pull/55/merge
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services: |
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web: |
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build: |
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context: app |
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target: dev-envs |
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stop_signal: SIGINT |
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ports: |
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- '8000:8000' |
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volumes: |
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- /var/run/docker.sock:/var/run/docker.sock |
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FROM python:3.7-alpine |
# syntax=docker/dockerfile:1.4 |
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WORKDIR /app |
FROM --platform=$BUILDPLATFORM python:3.10-alpine AS builder |
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WORKDIR /app |
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COPY requirements.txt /app |
COPY requirements.txt /app |
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RUN pip3 install -r requirements.txt --no-cache-dir |
RUN --mount=type=cache,target=/root/.cache/pip \ |
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COPY . /app |
pip3 install -r requirements.txt |
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ENTRYPOINT ["python3"] |
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COPY . /app |
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ENTRYPOINT ["python3"] |
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CMD ["app.py"] |
CMD ["app.py"] |
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FROM builder as dev-envs |
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RUN <<EOF |
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apk update |
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apk add git |
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EOF |
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RUN <<EOF |
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addgroup -S docker |
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adduser -S --shell /bin/bash --ingroup docker vscode |
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EOF |
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# install Docker tools (cli, buildx, compose) |
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COPY --from=gloursdocker/docker / / |
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services: |
services: |
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web: |
web: |
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build: app |
build: |
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ports: |
context: app |
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- '5000:5000' |
target: builder |
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# flask requires SIGINT to stop gracefully |
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# (default stop signal from Compose is SIGTERM) |
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stop_signal: SIGINT |
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ports: |
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- '8000:8000' |
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