Posts tagged with "debian"

I have once again switched browsers, the pendulum is now on the Firefox side. However when I changed my Emacs config to open links in firefox it didn’t work.

Instead I got the error message “Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.”

It turned out that I had both the firefox and firefox-esr packages installed, and browse-url-firefox tried to open iceweasel instead of firefox. Uninstalling firefox-esr solved it.

Last fall, we moved the Qwaya Facebook ads tool from a single host on Rackspace to a clustered Docker based environment on AWS. This is the first blog post of hopefully more that I’m writing to remember what we did. I’ve planned two more posts, one on how we handle CI and one on container orchestration.

Why Docker?

The task at hand was not “Move to docker”, it was “get out of single host hosting”. The old deployment consisted of some quite complicated Fabric scripts that was run from an arbitrary developers laptop. The source code repository did not match the deployment setup, so there was a lot of remote copy commands running around. I know that this is a very common way of deploying applications, but it brings a number of problems. For example, there are no build artifacts, making repeatable builds harder, and if the build fails halfway in you will have a broken system.