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103 lines
3.4 KiB
Text
103 lines
3.4 KiB
Text
[id='ref_managing-virtual-machines']
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= Managing virtual machines
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When the installation of the guest operating system is complete, it can be managed using the `virt-manager` program or via command line using `virsh`.
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[[managing-guests-with-virt-manager]]
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== Managing guests with virt-manager
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. Start the Virtual Machine Manager by navigating to menu:[Applications]System Tools, or run:
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+
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----
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# virt-manager
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----
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If you are not root, you will be prompted to enter the root password.
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. Choose the host you wish to manage and click *Connect* in the *Open Connection* dialog window.
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. The list of virtual machines is displayed in the main window. Guests that are running will display a ">" icon. Guests that are not running will be greyed out.
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. To manage a particular guest, double click on it, or right click and select *Open*.
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. A new window for the guest will open that will allow you to use its console, see information about its virtual hardware and start, stop, and pause it.
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For further information about `virt-manager`, see https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_deployment_and_administration_guide/sect-creating_guests_with_virt_manager[RedHat virt-manager guide].
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Bugs in the `virt-manager` tool should be reported in https://bugzilla.redhat.com[Bugzilla] against the `virt-manager`
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component.
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[[managing-guests-with-virsh]]
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== Managing guests with virsh
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The `virsh` command-line utility allows you to manage virtual machines on the command line. The `virsh` utility is built around the libvirt management API:
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* `virsh` has a stable set of commands whose syntax and semantics are preserved across updates to the underlying virtualization platform.
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* `virsh` can be used as an unprivileged user for read-only operations (e.g. listing domains, listing domain statistics).
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* `virsh` can manage domains running under Xen, QEMU/KVM, ESX, or other back-ends with no perceptible difference to the user.
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To start a virtual machine:
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# virsh create <name of virtual machine>
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----
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To list the virtual machines currently running:
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# virsh list
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To list all virtual machines, running or not:
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# virsh list --all
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To gracefully power off a guest:
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# virsh shutdown <virtual machine (name | id | uuid)>
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To non gracefully power off a guest:
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# virsh destroy <virtual machine (name | id | uuid)>
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----
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To save a snapshot of the machine to a file:
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# virsh save <virtual machine (name | id | uuid)> <filename>
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----
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To restore a previously saved snapshot:
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# virsh restore <filename>
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To export the configuration file of a virtual machine:
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# virsh dumpxml <virtual machine (name | id | uuid)
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----
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For a complete list of commands available for use with `virsh`:
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----
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# virsh help
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----
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Or consult the manual page: `man virsh`.
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Bugs in the `virsh` tool should be reported in https://bugzilla.redhat.com[Bugzilla] against the *libvirt* component.
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[[remote-management]]
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== Remote management
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The following remote management options are available:
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* If using non-root users via SSH, see the setup instructions in https://wiki.libvirt.org/page/SSHSetup
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* If using root for access via SSH, then create SSH keys for root, and use `ssh-agent` and `ssh-add` before launching `virt-manager`.
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* To use TLS, set up a local certificate authority and issue x509 certs to all servers and clients. For information on configuring this option, see https://wiki.libvirt.org/page/TLSSetup.
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