python:3.7-alpine + chrome:3.11-alpine

Dockerfile

FROM python:3.7-alpine

# install dependencies
USER root
COPY requirements.txt requirements.txt
RUN pip3 install --no-cache-dir -r requirements.txt

# Installs latest Chromium package.
RUN echo @edge http://mirrors.aliyun.com/alpine/v3.11/community > /etc/apk/repositories \
    && echo @edge http://mirrors.aliyun.com/alpine/v3.11/main >> /etc/apk/repositories \
    && apk add --no-cache \
    libstdc++@edge \
    chromium@edge \
    harfbuzz@edge \
    nss@edge \
    freetype@edge \
    ttf-freefont@edge \
    && rm -rf /var/cache/* \
    && mkdir /var/cache/apk

# Add Chrome as a user
RUN mkdir -p /usr/src/app \
    && adduser -D chrome \
    && chown -R chrome:chrome /usr/src/app
# Run Chrome as non-privileged
USER chrome
WORKDIR /usr/src/app

ENV CHROME_BIN=/usr/bin/chromium-browser \
    CHROME_PATH=/usr/lib/chromium/