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This is a liveblog of the session titled “Looking Under the Hood: containerD”, presented by Scott Coulton with Puppet (and also a Docker Captain). It’s part of the Edge track here at DockerCon EU 2017, where I’m attending and liveblogging as many sessions as I’m able.
Coulton starts out by explaining the session (it will focus a bit more on how to consume containerD in your own software projects), and provides a brief background on himself. Then he reviews the agenda, and dives right into the content.
Up first, Coulton starts by providing a bit of explanation around what containerD is and does. He notes that there is a CLI tool for containerD (the ctr
tool), and that containerD uses a gRPC API listening on a local UNIX socket. Coulton also discusses ctr
, but points out that ctr
is, currently, an unstable tool (changing too quickly). Next, Coulton talks about how containerD provides support for the OCI Image Spec and the OCI Runtime Spec (of which runC
is an implementation), image push/pull support, and management of namespaces.
Coulton moves into a demo showing off some of containerD’s functionality, using the ctr
tool.
After the demo, Coulton talks about some Continue reading