Hi mtanski,
How did you replace docker with rkt? Do you have an howto that you can share?
How did you replace docker with rkt? Do you have an howto that you can share?
First off, this and the rest of the rkt docs is a good starting point https://coreos.com/rkt/docs/latest/rkt-vs-other-projects.htm...
Second, rkt runs Docker images without modifications, so you can swap over really easily https://coreos.com/rkt/docs/latest/running-docker-images.htm...
rkt uses acbuild (which is part of the application container specification, see https://github.com/appc/spec) to build images, and I had a very tiny Docker image just running a single Go process.
I just created a shell script that ran the required acbuild commands to get as similar image.
A good place to get started is the getting started guide https://coreos.com/rkt/docs/latest/getting-started-guide.htm...
Docker runs as a daemon, and rkt doesn't (which is one of the benefits). I just start my rkt container using systemd, so I have a systemd file with 'ExecStart=/usr/bin/rkt run myimage:1.23.4', but you can start the containers with whatever you want.
It's also possible to use rkt with Kubernetes, but I have not tried that yet. http://kubernetes.io/docs/getting-started-guides/rkt/