latest,73(Dockerfile)with-node(Dockerfile)with-puppeteer(Dockerfile)72
Chrome running in headless mode in a tiny Alpine image
We often need a headless chrome. We created this image to get a fully headless chrome image. Be careful to the "--no-sandbox" flag from Chrome
Launch the container using:
docker container run -it --rm zenika/alpine-chrome and use the --no-sandbox flag for all your commands.
Be careful to know the website you're calling.
Explanation for the no-sandbox flag in a quick introduction here and for More in depth design document here
Launch the container using:
docker container run -it --rm --cap-add=SYS_ADMIN zenika/alpine-chrome
This allows to run Chrome with sandboxing but needs unnecessary privileges from a Docker point of view.
Thanks to ever-awesome Jessie Frazelle seccomp profile for Chrome.
Also available here wget https://raw.githubusercontent.com/jfrazelle/dotfiles/master/etc/docker/seccomp/chrome.json
Launch the container using:
docker container run -it --rm --security-opt seccomp=$(pwd)/chrome.json zenika/alpine-chrome
The default entrypoint does the following command: chromium-browser --headless --disable-gpu
You can get full control by overriding the entrypoint using: docker run -it --rm --entrypoint "" zenika/alpine-chrome chromium-browser ...
Command (with no-sandbox): docker container run -d -p 9222:9222 zenika/alpine-chrome --no-sandbox --remote-debugging-address=0.0.0.0 --remote-debugging-port=9222 https://www.chromestatus.com/
Open your browser to: http://localhost:9222 and then click on the tab you want to inspect. Replace the beginning
https://chrome-devtools-frontend.appspot.com/serve_file/@.../inspector.html?ws=localhost:9222/[END]
by
chrome-devtools://devtools/bundled/inspector.html?ws=localhost:9222/[END]
Command (with no-sandbox): docker container run -it --rm zenika/alpine-chrome --no-sandbox --dump-dom https://www.chromestatus.com/
Command (with no-sandbox): docker container run -it --rm -v $(pwd):/usr/src/app zenika/alpine-chrome --no-sandbox --print-to-pdf --hide-scrollbars https://www.chromestatus.com/
Command (with no-sandbox): docker container run -it --rm -v $(pwd):/usr/src/app zenika/alpine-chrome --no-sandbox --screenshot --hide-scrollbars https://www.chromestatus.com/
Command (with no-sandbox): docker container run -it --rm -v $(pwd):/usr/src/app zenika/alpine-chrome --no-sandbox --screenshot --hide-scrollbars --window-size=1280,1696 https://www.chromestatus.com/
Command (with no-sandbox): docker container run -it --rm -v $(pwd):/usr/src/app zenika/alpine-chrome --no-sandbox --screenshot --hide-scrollbars --window-size=412,732 https://www.chromestatus.com/
Command (with no-sandbox): docker container run -u `id -u $USER` -it --rm -v $(pwd):/usr/src/app zenika/alpine-chrome --no-sandbox --screenshot --hide-scrollbars --window-size=412,732 https://www.chromestatus.com/
With tool like "Puppeteer", we can add a lot things with our Chrome Headless.
With some code in NodeJS, we can improve and make some tests.
See the "with-puppeteer" folder for more details.
If you have a NodeJS/Puppeteer script in your src folder named pdf.js, you can launch it using the following command:
docker run -it --rm -v $(pwd)/src:/usr/src/app/src --cap-add=SYS_ADMIN zenika/alpine-chrome:with-puppeteer node src/pdf.js
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Headless Chrome website: https://developers.google.com/web/updates/2017/04/headless-chrome
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List of all options of the "Chromium" command line: https://peter.sh/experiments/chromium-command-line-switches/
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Where to file issues: https://github.com/Zenika/alpine-chrome/issues
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Maintained by: https://www.zenika.com
docker run -it --rm --entrypoint "" zenika/alpine-chrome cat /etc/alpine-release
3.9.3
docker run -it --rm --entrypoint "" zenika/alpine-chrome chromium-browser --version
Chromium 73.0.3683.103
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