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nginx-flask-mysql: add dev envs support (#272)

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* Add Docker Desktop Development Environments config
* Change port `5000` -> `8000` for Flask to avoid conflicts on
  recent macOS versions
* Improve DB health check (for non-dev envs case) to avoid
  producing a bunch of log spam

Co-authored-by: Guillaume Lours <guillaume@lours.me>
Signed-off-by: Milas Bowman <milas.bowman@docker.com>
This commit is contained in:
Milas Bowman 2022-07-13 08:44:29 -04:00 • committed by GitHub
parent 20089c790b
commit 111c55d56b
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5 changed files with 130 additions and 24 deletions
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39
nginx-flask-mysql/backend/Dockerfile
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@ -1,8 +1,35 @@
FROM python:3.8-alpine
# syntax=docker/dockerfile:1.4
FROM --platform=$BUILDPLATFORM python:3.10-alpine AS builder
WORKDIR /code
COPY requirements.txt /code/
RUN pip install -r requirements.txt --no-cache-dir
COPY . /code/
COPY requirements.txt /code
RUN --mount=type=cache,target=/root/.cache/pip \
pip3 install -r requirements.txt
COPY . .
ENV FLASK_APP hello.py
CMD flask run --host=0.0.0.0
ENV FLASK_ENV development
ENV FLASK_RUN_PORT 8000
ENV FLASK_RUN_HOST 0.0.0.0
EXPOSE 8000
CMD ["flask", "run"]
FROM builder AS dev-envs
RUN <<EOF
apk update
apk add git
EOF
RUN <<EOF
addgroup -S docker
adduser -S --shell /bin/bash --ingroup docker vscode
EOF
# install Docker tools (cli, buildx, compose)
COPY --from=gloursdocker/docker / /
CMD ["flask", "run"]