Python-Poetry & Docker-Alpine

README.md

Overview

Our goal to manage python packages via poetry.

Poetry is a modern package manager inspired but tools such javascript npm. If you don't familiar with this tool check my another gist

Quickstart

Init project via poetry and install python-black

poetry new demo-po-alpine && cd demo-po-alpine
poetry add black

Inside the project folder we should create Dockerfile, docker-compose.yml. Also, it's good practise to specify all things that you don't need in runtime in .dockerignore.

So desired result should looks like this:

❯ tree
.
├── Dockerfile
├── README.rst
├── demo_po_alpine
│   └── __init__.py
├── docker-compose.yml
├── poetry.lock
├── pyproject.toml
└── tests
    ├── __init__.py
    └── test_demo_po_alpine.py

2 directories, 8 files

Build the image and check black version:

docker compose up        
[+] Running 1/1
 ⠿ Container demo-po-alpine  Started                                                                                                                                                                                                                                  0.6s
Attaching to demo-po-alpine
demo-po-alpine  | black, 21.12b0 (compiled: no)
demo-po-alpine exited with code 0

docker-compose.yml

---
version: '3.8'

services:
  demo-po-alpine:
    container_name: demo-po-alpine
    image: demo-po-alpine
    build:
      context: ./
      args:
        - POETRY_VERSION=1.1.12
    command: black --version
    volumes:
      - ./:/tmp

Dockerfile

# pull official base image
FROM python:3.10.1-alpine3.14

# set desired poetry version via build-arg
ARG POETRY_VERSION=1.1.12

# setup poetry
RUN apk add --no-cache --virtual .build-deps \
    curl~=7.79 \
    gcc~=10.3.1 \
    libressl-dev~=3.3.3 \
    libffi-dev~=3.3 \
    musl-dev~=1.2.2 \
  && pip install --no-cache-dir poetry==${POETRY_VERSION} \
  && apk del .build-deps

# ignore everything what you dont't need in runtime in the file .dockerignore
COPY ./ ./

# our goal is install packages inside the container globally
RUN poetry config virtualenvs.create false \
  && poetry install