Containerd

containerd is a container runtime (https://containerd.io/), in February 2019 containerd becames official CNCF project

• Image push and pull
• Managing of storage
• Executing of Containers by calling runc with the right parameters to run containers...
• Managing of network primitives for interfaces
• Management of network namespaces containers to join existing namespaces

http://alexander.holbreich.org/docker-components-explained/

• systemctl status containerd
• systemctl stop containerd

/etc/containerd/config.toml
/var/run/docker/containerd/containerd.toml

containerd --config  /etc/containerd/config.toml
containerd --config  /var/run/docker/containerd/containerd.toml
containerd --config /var/run/docker/containerd/containerd.toml --log-level info

cotainerd 
.../....
INFO[2020-01-27T14:34:22.574737560Z] containerd successfully booted in 0.041567s

docker.log

failed to start containerd: timeout waiting for containerd to start

Activities

• Read about https://www.docker.com/blog/docker-engine-1-11-runc/

Related

• journalctl -u containerd
• docker.log
• Kubernetes
• crictl

cri-o

See also

• runc, runc create failed
• containerd, config.toml, containerd-shim, runc, journalctl -u containerd, ctr, SOCI Snapshotter, Containerd versions
• Docker: dockerd, docker (command), dockerd-ce (dockerd), docker-proxy, Docker Kubernetes Service (DKS), /var/lib/docker/, /var/run/docker.sock, 9323
• 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