9.6.2.4. Using the virtctl port-forward command


You can use your local OpenSSH client and the virtctl port-forward command to connect to a running virtual machine (VM). You can use this method with Ansible to automate the configuration of VMs.

This method is recommended for low-traffic applications because port-forwarding traffic is sent over the control plane. This method is not recommended for high-traffic applications such as Rsync or Remote Desktop Protocol because it places a heavy burden on the API server.

Prerequisites

  • You have installed the virtctl client.
  • The virtual machine you want to access is running.
  • The environment where you installed the virtctl tool has the cluster permissions required to access the VM. For example, you ran oc login or you set the KUBECONFIG environment variable.

Procedure

  1. Add the following text to the ~/.ssh/config file on your client machine:

    Host vm/*
      ProxyCommand virtctl port-forward --stdio=true %h %p
  2. Connect to the VM by running the following command:

    $ ssh <user>@vm/<vm_name>.<namespace>
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