Charmed PostgreSQL

Channel Revision Published Runs on
latest/stable 316 11 Aug 2023
Ubuntu 22.04 Ubuntu 20.04 Ubuntu 18.04 Ubuntu 16.04
14/stable 288 18 Apr 2023
Ubuntu 22.04
14/candidate 326 19 Sep 2023
14/beta 330 27 Sep 2023
14/edge 330 26 Sep 2023
juju deploy postgresql --channel 14/stable
Show information



How to enable plugins/extensions

Warning: The feature is currently available in the channel 14/edge only (revision 304+) and will be released to the channel 14/stable soon.

Enable plugins/extensions requires that you:

Enable the plugin/extension by setting True as the value of its respective config option, like in the following example:

juju config postgresql plugin_<plugin name>_enable=True

Then you can relate your application charm with the PostgreSQL application and it should work as expected.

If your application charm requests extensions through db or db-admin relation data, but the extension is not enabled yet, you’ll see that the PostgreSQL application goes to a blocked state with the following message:

postgresql/0*  blocked   idle            extensions requested through relation

Also, in the Juju debug logs we can see the list of extensions that need to be enabled:

unit-postgresql-0: 18:04:51 ERROR unit.postgresql/0.juju-log db:5: ERROR - `extensions` (pg_trgm, unaccent) cannot be requested through relations - Please enable extensions through `juju config` and add the relation again.

After enabling the needed extensions through the config options the charm will unblock. If you have removed the relation, you can add it back again.

If the application charm uses the new postgresql_client interface, it can use the is_postgresql_plugin_enabled helper method from the data interfaces library to check whether the plugin/extension is already enabled in the database.

Not all PostgreSQL extensions are available. The list of supported extensions is available at Supported plugins/extensions.

Help us improve this documentation

Most of this documentation can be collaboratively discussed and changed on the respective topic in the doc category of the Charmhub forum. See the documentation guidelines if you’d like to contribute.

Last updated 3 months ago. Help improve this document in the forum.