DigitalOcean, Docker, Dokku: Installing Firefox inside a container
I have an application which needs to use a headed browser periodically.
I want to Host it using Dokku.
How can I install this into my DO container?
When I run:
dokku run MY_APP apt-get install firefox
E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/s/systemd/libsystemd-daemon0_204-5ubuntu20.9_amd64.deb 404 Not Found [IP: 188.8.131.52 80]
E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/u/ubufox/xul-ext-ubufox_2.9-0ubuntu0.14.04.1_all.deb 404 Not Found [IP: 184.108.40.206 80]
After which running:
dokku run MY_APP firefox
FATA Error response from daemon: Cannot start container … exec: “firefox”: executable file not found in $PATH
I am aware that PhatomJS is a better solution but some third party gem I am using are dependant on a headed firefox browser.
One Solution collect form web for “DigitalOcean, Docker, Dokku: Installing Firefox inside a container”
From the error message you are getting when installing Firefox, it seems like your apt cache inside the Docker container is out-of-date. Running
apt-get update first should resolve the problem.
Though to run Firefox headless, you’ll need another step. You’ll need to prepend your command with
xvfb-run which is part of the
xvfb package. It will allow you to run commands in a virtual X server environment.