Container Runtime Interface (CRI)

• https://kubernetes.io/docs/concepts/architecture/cri/
• https://kubernetes.io/blog/2016/12/container-runtime-interface-cri-in-kubernetes/

kubelet communicates with the container runtime (or a CRI shim for the runtime) over Unix sockets using the gRPC framework, where kubelet acts as a client and the CRI shim as the server.

News

• 05/2022 Kubernetes 1.24: dockershim removed from kubelet

Related

• Container runtime
• CRI-O (OCI)
• cri-dockerd
• crictl
• dockershim
• kubectl dds
• Kubernetes controller manager

See also

• crictl [ logs | ps | pods | exec | config | images ], /etc/crictl.yaml, crictl --help, Kubelet Container Runtime Interface (CRI)
• kubelet, /etc/kubernetes/kubelet.conf, /var/log/kubelet.log, Kubelet Container Runtime Interface (CRI), crictl, context deadline exceeded, E1122, E1124, Starting kubelet, NodeHasDiskPressure, NodeHasInsufficientMemory, rebooted, Node-pressure Eviction, Kubelet logs
• CRI, CRI-O, crictl‎‎, cri-dockerd
• Containers, OCI: Docker (dockerd), containerd, runc, Podman, buildah, skopeo, lxd, Container Registry, Service mesh, Windows Server containers, Containerpilot, CoreOS, CAdvisor, Containers networking, Container scanning, cosign, CRI, CRI-O, initContainers, Sidecar container, Container images, latest