Cloud Foundry GrootFS: A Daemonless Container Image Manager that You Can Use with RunC for Fun and Profit

runC, OCIs implementation of the runtime spec, has been very successful since the initiative was launched back in 2015. Cloud Foundry and others have been running with runC in production for a while …

runC, OCI’s implementation of the runtime spec, has been very successful since the initiative was launched back in 2015. Cloud Foundry and others have been running with runC in production for a while now with hundreds of thousands of runC containers being spawned around the world on every day. For us, in Open Source conference, runC is quickly becoming the standard implementation of containers in Linux. runC, however, does not deal with the container packaging techniques which currently get standardised as well through the image spec initiative. In this talk, George will introduce you to GrootFS, a deamonless container image manager, which can run seamlessly as a non-root user in Linux and provide runC with various types of container images. GrootFS is dealing with the low-level filesystem operations required to make container images efficient as well as the distribution of images.