Mapping from dockercli to crictl

Mapping from dockercli to crictl 

crictl is a command-line interface for CRI-compatible container runtimes. You can use it to inspect and debug container runtimes and applications on a Kubernetes node. crictl and its source are hosted in the cri-tools repository.

This page provides a reference for mapping common commands for the docker command-line tool into the equivalent commands for crictl.

Mapping from docker CLI to crictl

The exact versions for the mapping table are for docker CLI v1.40 and crictl v1.19.0. This list is not exhaustive. For example, it doesn't include experimental docker CLI commands.

Note: The output format of crictl is similar to docker CLI, despite some missing columns for some CLI. Make sure to check output for the specific command if your command output is being parsed programmatically.

Retrieve debugging information

docker cli	crictl	Description	Unsupported Features
attach	attach	Attach to a running container	--detach-keys, --sig-proxy
exec	exec	Run a command in a running container	--privileged, --user, --detach-keys
images	images	List images
info	info	Display system-wide information
inspect	inspect, inspecti	Return low-level information on a container, image or task
logs	logs	Fetch the logs of a container	--details
ps	ps	List containers
stats	stats	Display a live stream of container(s) resource usage statistics	Column: NET/BLOCK I/O, PIDs
version	version	Show the runtime (Docker, ContainerD, or others) version information

Perform Changes

docker cli	crictl	Description	Unsupported Features
create	create	Create a new container
kill	stop (timeout = 0)	Kill one or more running container	--signal
pull	pull	Pull an image or a repository from a registry	--all-tags, --disable-content-trust
rm	rm	Remove one or more containers
rmi	rmi	Remove one or more images
run	run	Run a command in a new container
start	start	Start one or more stopped containers	--detach-keys
stop	stop	Stop one or more running containers
update	update	Update configuration of one or more containers	--restart, --blkio-weight and some other resource limit not supported by CRI.

Supported only in crictl

crictl	Description
imagefsinfo	Return image filesystem info
inspectp	Display the status of one or more pods
port-forward	Forward local port to a pod
pods	List pods
runp	Run a new pod
rmp	Remove one or more pods
stopp	Stop one or more running pods