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playwright/docs/docker/README.md
Andrey Lushnikov 7d2078ef6f
devops: bake browsers into Docker image (#2990) 
This patch bakes browsers into docker image.

Important observations:
- We now re-build docker image everytime we roll browsers.
- Docker image size almost doubles: from `225MB` to `496MB`.

References #2926
2020-07-17 16:51:39 -07:00

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Running Playwright in Docker

Dockerfile.bionic is a playwright-ready image of playwright. This image includes all the dependencies needed to run browsers in a Docker container, including browsers.

Usage

docker hub

This image is published on Docker Hub.

Pull the image

$ docker pull mcr.microsoft.com/playwright:bionic

Run the image

$ docker container run -it --rm --ipc=host --security-opt seccomp=chrome.json mcr.microsoft.com/playwright:bionic /bin/bash

Note that:

  • The seccomp profile is required to run Chrome without sandbox. Thanks to Jessie Frazelle.
  • Using --ipc=host is also recommended when using Chrome (Docker docs). Chrome can run out of memory without this flag.

Using on CI

See our Continuous Integration guides for sample configs.

Development

Build the image

Use //docs/docker/build.sh to build the image.

$ ./docs/docker/build.sh

The image will be tagged as playwright:localbuild and could be run as:

$ docker run --rm -it playwright:localbuild /bin/bash

Note

: any commit that changes docker image should also update //docs/docker/CURRENT_DOCKER_IMAGE_SIZE. Please run //docs/docker/docker-image-size.sh locally and commit updated number.

Push

Docker images are published automatically by Github Actions. We currently publish the following images:

  • mcr.microsoft.com/playwright:dev - tip-of-tree image version.
  • mcr.microsoft.com/playwright:bionic - last Playwright release docker image.
  • mcr.microsoft.com/playwright:sha-XXXXXXX - docker image for every commit that changed docker files or browsers, marked with a short sha (first 7 digits of the SHA commit).

Base images

playwright:bionic is based on Ubuntu 18.04 LTS (Bionic Beaver).

Alpine

Browser builds for Firefox and WebKit are built for the glibc library. Alpine Linux and other distributions that are based on the musl standard library are not supported.