---
title: Charmhub | Deploy Ovn Central using Charmhub - The Open Operator Collection
description: Deploy the latest version of Ovn Central on any cloud.
url: https://charmhub.io/ovn-central/configurations
---

# Ovn Central

[OpenStack Charmers](https://charmhub.io/publisher/openstack-charmers "View all packages from OpenStack Charmers")

* [OpenStack Charmers](https://charmhub.io/publisher/openstack-charmers "View all packages from OpenStack Charmers")
* [Cloud](https://charmhub.io/?filter=cloud)
* [Networking](https://charmhub.io/?filter=networking)

Platform:

24.04

23.10

23.04

22.10

22.04

20.04

18.04

22.03/stable 5575159

```
juju deploy ovn-central --channel 22.03/stable
```

[Learn to deploy on juju >](https://juju.is/docs/juju/manage-applications)

* [enable-auto-restarts](https://charmhub.io/ovn-central/configurations#enable-auto-restarts)
* [nagios\_context](https://charmhub.io/ovn-central/configurations#nagios_context)
* [nagios\_servicegroups](https://charmhub.io/ovn-central/configurations#nagios_servicegroups)
* [ovn-source](https://charmhub.io/ovn-central/configurations#ovn-source)
* [ovsdb-server-election-timer](https://charmhub.io/ovn-central/configurations#ovsdb-server-election-timer)
* [ovsdb-server-inactivity-probe](https://charmhub.io/ovn-central/configurations#ovsdb-server-inactivity-probe)
* [source](https://charmhub.io/ovn-central/configurations#source)

[Learn about configurations >](https://juju.is/docs/juju/configuration#heading--application-configuration)

* enable-auto-restarts | boolean

  Default: True

  Allow the charm and packages to restart services automatically when
  required.
* nagios\_context | string

  Default: juju

  A string that will be prepended to instance name to set the host name
  in nagios. So for instance the hostname would be something like:
  juju-myservice-0
  If you're running multiple environments with the same services in them
  this allows you to differentiate between them.
* nagios\_servicegroups | string

  Comma separated list of nagios servicegroups for the service checks.
* ovn-source | string

  Overlay repository from which to install OVS+OVN.

  The default for this configuration option is determined at charm
  runtime.

  When charm is deployed into a fresh environment on Ubuntu
  20.04 (Focal Fossa), the default will be 'cloud:focal-ovn-22.03'.

  When charm is upgraded or deployed into a fresh environment
  on a different series the default will be to not use the
  overlay repository.

  To disable the overlay repository, set this option to 'distro'.

  Note that updating this setting to a source that is known to
  provide a later version of OVN will trigger a software
  upgrade.
* ovsdb-server-election-timer | int

  Default: 4

  Raft leader election timeout in seconds. The charm allows a value between
  1 and 60 seconds.
  .
  The Open vSwitch ovsdb-server default of 1 second may not be sufficient
  for a loaded cluster where the database server may be too busy serving
  requests to respond to elections in time.
  .
  Using a higher value will increase the time to discover a real failure,
  but you must weigh that against the risk of spurious leader flapping and
  the unwanted churn that entails.
  .
  NOTE: The ovsdb-server will refuse to decrease or increase the value of
  this timer more than 2x the current value. The charm will compensate for
  this and decrease / increase the timer in increments, but care should be
  taken to not decrease / increase the value too much in one operation.
* ovsdb-server-inactivity-probe | int

  Default: 60

  Maximum number of seconds of idle time on connection to client before
  sending an inactivity probe message.

  The Open vSwitch ovsdb-server default of 5 seconds may not be sufficient
  depending on type and load of the CMS you want to connect to OVN.
* source | string

  Default: yoga

  Repository from which to install packages.

  May be one of the following:

  distro (default)
  ppa:somecustom/ppa (PPA name must include UCA OpenStack Release name)
  deb url sources entry|key id
  or a supported Ubuntu Cloud Archive pocket.

  Supported Ubuntu Cloud Archive pockets include:

  cloud:xenial-pike
  cloud:xenial-queens
  cloud:bionic-rocky

  Note that updating this setting to a source that is known to
  provide a later version of Ceph will trigger a software
  upgrade.