Dockerfile for Python Playwright (Ubuntu 20.04LTS). You can choose the browser to install. Custom user UID:GID when you build the image, useful for Synology Docker.

build_docker.sh

#!/usr/bin/env bash

docker image build --build-arg BROWSER=chromium --build-arg TZ='Europe/Rome' --build-arg GROUP_ID=65542 --build-arg USER_ID=1026 -t ubuntu:python-playwright -f Dockerfile .

save_docker.sh

#!/usr/bin/env bash

docker image save ubuntu:python-playwright | gzip > ubuntu-python-playwright.tar.gz

ubuntu.python.playwright.Dockerfile

#
# Compile examples:
#		- Generic build (larger)
# 		docker image build -t ubuntu:python-playwright -f Dockerfile .
#       
#		- Install only chromium browser, with my Synology docker user's GROUP_ID/USER_ID (lighter)
#		docker image build --build-arg BROWSER=chromium --build-arg TZ='Europe/Rome' \
#		--build-arg GROUP_ID=65542 --build-arg USER_ID=1026 -t ubuntu:python-playwright -f Dockerfile .
#
# Run example:
#		docker run --rm --mount type=bind,source="$(pwd)",target=/home/play/work ubuntu:python-playwright python work/windtre.py
#

FROM ubuntu:focal

# Optional Timezone set by default at build time..
ARG TZ
ENV TZ=$TZ
# Optional arg, select which browser install, if undefined install all
ARG BROWSER
# Optional arg, docker user UID:GID
ARG USER_ID
ARG GROUP_ID
# 
ARG USER=play
ARG HOME_DIR=/home/${USER}
ARG DEBIAN_FRONTEND=noninteractive 
# LABEL about the custom image
LABEL maintainer="Francesco Guarnieri"
LABEL version="0.2"
LABEL description="Ubuntu 20.04LTS docker image for Python and Playwright"

# Install WebKit dependencies
RUN apt-get update && \
	apt-get install -y --no-install-recommends \
	libwoff1 \
	libopus0 \
	libwebp6 \
	libwebpdemux2 \
	libenchant1c2a \
	libgudev-1.0-0 \
	libsecret-1-0 \
	libhyphen0 \
	libgdk-pixbuf2.0-0 \
	libegl1 \
	libnotify4 \
	libxslt1.1 \
	libevent-2.1-7 \
	libgles2 \
	libxcomposite1 \
	libatk1.0-0 \
	libatk-bridge2.0-0 \
	libepoxy0 \
	libgtk-3-0 \
	libharfbuzz-icu0 \
	# Install latest Python
	python3 \ 
	python3-pip && \
	if test -z "${BROWSER}" -o "${BROWSER}" = "webkit" ; then \
	apt-get install -y --no-install-recommends \
	libgl1 \
	libvpx6 \
	gstreamer1.0-plugins-base \
	libgstreamer1.0-0 \
	libgstreamer-gl1.0-0 \
	gstreamer1.0-plugins-bad \
	libopenjp2-7 \
	gstreamer1.0-libav \
	; fi && \
	if test -z "${BROWSER}" -o "${BROWSER}" = "chromium" ; then \
	apt-get install -y --no-install-recommends \
	libnss3 \
	libnspr4 \
	libasound2 \
	; fi && \
	if test -z "${BROWSER}" -o "${BROWSER}" = "firefox" ; then \
	apt-get install -y --no-install-recommends \
	libdbus-glib-1-2 \
	libxt6 \
	; fi && \
# (Optional) Install XVFB if there's a need to run browsers in headful mode
#	xvfb  \    
# Clean
	apt-get -y autoclean && \
	apt-get -y autoremove && \
	rm -rf /var/lib/apt/lists/* && \
# Alternatives
	update-alternatives --quiet --install /usr/bin/pip pip /usr/bin/pip3 1 && \
	update-alternatives --quiet --install /usr/bin/python python /usr/bin/python3 1 && \
# Use GID and UID arg, if none passed are used default values
	if getent group ${GROUP_ID}>/dev/null; then groupadd ${USER}; \
	else groupadd -g ${GROUP_ID} ${USER}; fi && \
	if getent passwd ${USER_ID}>/dev/null; then useradd -g ${USER} -G audio,video ${USER}; \
	else useradd -g ${USER} -u ${USER_ID} -G audio,video ${USER}; fi && \
	mkdir -p ${HOME_DIR}/work && \
	chown -R ${USER}:${USER} ${HOME_DIR}

WORKDIR ${HOME_DIR}

# Run everything after as non-privileged user
USER ${USER}
ENV PATH="${HOME_DIR}/.local/bin:${PATH}"

RUN	pip install --no-cache-dir playwright && \
    playwright install ${BROWSER}