ctr(1) General Commands Manual ctr(1)
SYNOPSIS
ctr [global options] command [command options] [arguments...]
DESCRIPTION
ctr is an unsupported debug and administrative client for interacting
with the containerd daemon. Because it is unsupported, the commands,
options, and operation are not guaranteed to be backward compatible or
stable from release to release of the containerd project.
OPTIONS
The following commands are available in the ctr utility:
plugins,plugin
Provides information about containerd plugins
version
Prints the client and server versions
containers,c,container
Manages and interacts with containers
content
Manages and interacts with content
events,event
Displays containerd events
images,image
Manages and interacts with images
namespaces,namespace
Manages and interacts with containerd namespaces
pprof Provides golang pprof outputs for containerd
run Runs a container
snapshots,snapshot
Manages and interacts with snapshots
tasks,t,task
Manages and interacts with tasks
shim Interacts with a containerd shim directly
help,h Displays a list of commands or help for one specific command
The following global options apply to all ctr commands:
--debug
Enable debug output in logs
--address value, -a value
Address for containerd's GRPC server (default: /run/contain-
erd/containerd.sock)
--timeout value
Total timeout for ctr commands (default: 0s)
--connect-timeout value
Timeout for connecting to containerd (default: 0s)
--namespace value, -n value
Namespace to use with commands (default: default) [also read
from $CONTAINERD_NAMESPACE]
--help, -h
Show help text
--version, -v
Prints the ctr version
BUGS
Note that the ctr utility is not an officially supported part of the
containerd project releases.
However, please feel free to file any specific issues that you en-
counter at https://github.com/containerd/containerd.
AUTHOR
Phil Estes estesp@gmail.com <mailto:estesp@gmail.com>
SEE ALSO
containerd(1), containerd-config(1), containerd-config.toml(5)
01/30/2018 ctr(1)