Even though Docker Hub supports automated builds — triggering builds when you push to a git repository, you still need to actually push to your git repository in order to get the image build. That is pretty tedious, to just update versions and run tests to verify it works. It would be much simpler to let it update itself automatically and just resolve issues.

Disclaimer: this is very likely not safe, use it at your own risk, I don’t account for any harm.

I was playing with epoll and was curious whether I can use it to monitor sys.stdin. The biggest issue was that sys.stdin.read() is blocking and I had no way to figure out whether I read the descriptor fully or not (making the epoll useless pretty much). Until I changed it to non-blocking with fcntl.

Here are my assorted notes from some ${subject} talks.

Last week we were at Flock 2016 which was held in Krakow, Poland. Awesome event, lots of news, great people, plenty of conversations and fun.

Here is a list of my notes:

So you wanna build a docker image. And you need to fetch your application sources from git. Which is guarded by ssh. And you don’t want the ssh key to get leaked into the final image. Bummer.

Unless…

So we needed to fetch manifests of repositories from Docker Hub today. It’s not that hard. 30 lines of python can do it. But at the same time, you need to read docs with all the specs.