crun 命令

常用示例

说明

crun is a fast and low-memory footprint OCI container runtime written in C. It is fully compatible with the OCI (Open Container Initiative) runtime specification and can be used as a drop-in replacement for runc. crun implements all required OCI runtime operations including container creation, execution, and lifecycle management. It supports Linux namespaces, cgroups v1 and v2, seccomp, and other container isolation features. The runtime is designed to be lightweight and efficient, with significantly faster startup times and lower memory usage compared to Go-based runtimes. It's used by container engines like Podman and Buildah.

参数

run _ID_

Create and start a container from an OCI bundle.

create _ID_

Create a container but don't start it.

start _ID_

Start a previously created container.

exec _ID_ _CMD_

Execute a command in a running container.

delete _ID_

Delete a container.

kill _ID_ _SIGNAL_

Send a signal to the container's init process.

list

List containers.

state _ID_

Output the state of a container.

pause _ID_

Pause all processes in the container.

resume _ID_

Resume the processes in the container.

ps _ID_

Show the processes running in a container.

update _ID_

Update container resource constraints.

spec

Create a new OCI bundle specification.

checkpoint _ID_

Checkpoint a running container using CRIU.

--root _DIR_

Root directory for container state.

--debug

Produce verbose output.

--log=_DESTINATION_

Define destination for error and warning messages (file:PATH, journald:ID, or syslog:ID).

--systemd-cgroup

Use systemd for configuring cgroups.

--cgroup-manager=_MANAGER_

Specify cgroup manager (cgroupfs, systemd, or disabled).