简单的 Dockerfile

Created: November-22, 2018

# Base image
FROM python:2.7-alpine

# Metadata
MAINTAINER John Doe <johndoe@example.com>

# System-level dependencies
RUN apk add --update \
    ca-certificates \
    && update-ca-certificates \
    && rm -rf /var/cache/apk/*

# App dependencies
COPY requirements.txt /requirements.txt
RUN pip install -r /requirements.txt

# App codebase
WORKDIR /app
COPY . ./

# Configs
ENV DEBUG true
EXPOSE 5000
CMD ["python", "app.py"]

MAINTAINER 将在 Docker 1.13 中弃用，应该使用 LABEL 替换。（来源）

示例：LABEL Maintainer =“John Doe johndoe@example.com”