Basic VirtualMachineInstance operations can be performed with the stock kubectl utility. However, the virtctl binary utility is required to use advanced features such as:
- Serial and graphical console access
It also provides convenience commands for:
- Starting and stopping VirtualMachineInstances
- Live migrating VirtualMachineInstances
- Uploading virtual machine disk images
There are two ways to get it:
- the most recent version of the tool can be retrieved from the official release page
- it can be installed as a kubectl plugin using krew
Example:
$ export VERSION=v0.48.1
$ wget https://github.com/kubevirt/kubevirt/releases/download/${VERSION}/virtctl-${VERSION}-linux-amd64
$ ln -s virtctl-v0.48.1-linux-amd64 virtctl
$ chmod +x virtctl-v0.48.1-linux-amd64
$ ./virtctl version
Client Version: version.Info{GitVersion:"v0.48.1", ...}
Access the virtual machine console
$ ./virtctl -h
virtctl controls virtual machine related operations on your kubernetes cluster.
Available Commands:
addvolume add a volume to a running VM
console Connect to a console of a virtual machine instance.
expose Expose a virtual machine instance, virtual machine, or virtual machine instance replica set as a new service.
fslist Return full list of filesystems available on the guest machine.
guestfs Start a shell into the libguestfs pod
guestosinfo Return guest agent info about operating system.
help Help about any command
image-upload Upload a VM image to a DataVolume/PersistentVolumeClaim.
migrate Migrate a virtual machine.
pause Pause a virtual machine
permitted-devices List the permitted devices for vmis.
port-forward Forward local ports to a virtualmachine or virtualmachineinstance.
removevolume remove a volume from a running VM
restart Restart a virtual machine.
soft-reboot Soft reboot a virtual machine instance
ssh Open a SSH connection to a virtual machine instance.
start Start a virtual machine.
stop Stop a virtual machine.
unpause Unpause a virtual machine
usbredir Redirect a usb device to a virtual machine instance.
userlist Return full list of logged in users on the guest machine.
version Print the client and server version information.
vnc Open a vnc connection to a virtual machine instance.
Use "virtctl <command> --help" for more information about a given command.
Use "virtctl options" for a list of global command-line options (applies to all commands).
$ ./virtctl console vm1
[root@vm1 output]# hostname
vm1
Reference
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