Posts tagged 'docker'

Snippet testing with Firefox on Docker

Mozilla's Snippets Service feeds Firefox for Desktop and Android with small HTML or JSON blobs with content to display about:home page. That's the page users get when they open up Firefox.

Desktop snippets are usually a line of text and an icon but the service supports much more complicated snippets. Multiple choice forms for our end of year fund raising campaigns, videos about our mission, interactions with the browser Chrome and others. We even had a HTML5 game going once!

As the snippets increase more and more in complexity we need better ways to test them. Unfortunately we have …

Downloading HDS Flash (f4m) video streams.

Some WebTV or other video streaming websites use a special Adobe (surprise, surprise) inspired protocol to stream their content. The special thing about this protocol is that the file is split into chunks which I guess is good if you want to jump on different points in the video or you have an unstable internet connection but really annoying if you just want to download the video and view it in a different player.

This protocol is called Abode Dynamic Streaming for Flash and usually the sites link to f4m manifest files. From the SWF Wikipedia Page we read get …

Fleet job to remove unused docker images

Engagement Engineering, the team that I'm part of at Mozilla, runs two Deis clusters on AWS to host important websites including

Deis is a Heroku-inspired PaaS which utilizes CoreOS and Docker. It's a great open-source project, developed in the public, with a great Community and commercially backed by Engine Yard.

Apps on Deis run within Docker containers which run on CoreOS machines that form the Deis cluster. Each new release of your code, i.e. each new deis pull or git push, creates a new Docker image that is stored in the internal Deis Docker Registry and …