Unpacking Docker images with Undocker
In some ways, the most exciting thing about Docker isn't the ability to start containers. That's been around for a long time in various forms, such as LXC or OpenVZ. What Docker brought to the party was a convenient method of building and distributing the filesystems necessary for running containers …read more
Installing nova-docker with devstack
External networking for Kubernetes services
I have recently started running some "real" services (that is, "services being consumed by someone other than myself") on top of Kubernetes (running on bare metal), which means I suddenly had to confront the question of how to provide external access to Kubernetes hosted services. Kubernetes provides two solutions to …read more
Installing nova-docker on Fedora 21/RDO Juno
This post comes about indirectly by a request on IRC in
#rdo for help getting nova-docker installed on Fedora 21. I ran through the process from start to finish and decided to write everything down for posterity.
I started with the Fedora 21 Cloud Image, because I'm installing …read more
Creating minimal Docker images from dynamically linked ELF binaries
In this post, we'll look at a method for building minimal Docker images for dynamically linked ELF binaries, and then at a tool for automating this process.
It is tempting, when creating a simple Docker image, to start with one of the images provided by the major distributions. For example …read more