September 2018
Intermediate to advanced
764 pages
20h 6m
English
Kubernetes runs applications and services inside containers, and it expects that each node in the cluster already has the respective container runtime installed; this can be done with a provisioning tool like Terraform.
However, it does not dictate any particular container format, as long as it is a format that abides by the Open Container Initiative (OCI)'s runtime specification (https://github.com/opencontainers/runtime-spec). For instance, you can use Docker, rkt (by CoreOS), or runc (by OCI) / CRI-O (by Kubernetes team) as the container format and runtime.
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