How to install postgresql_extensions on a running cluster?

[jwcfree]

Hello guys! I want to install some plugins, like pg_cron, pg_partman on a running cluster with ansible role.
I edited vars/main.yml and selected this plugins in the block postgresql_extensions... But an error occurred:
"Whoops! data directory /var/lib/pgsql/14/data is already initialized"
How to install extensions correctly?

[vitabaks]

Please use tags https://github.com/vitabaks/postgresql_cluster/blob/master/tags.md

ansible-playbook deploy_pgcluster.yml --tags postgresql_extensions

[vitabaks]

Added a new playbook config_pgcluster.yml designed to update configurations after cluster deployment (#218).

[jwcfree]

Nice work!!! Thank you 🙏

[jwcfree]

I would also like to know about extesions path. Maybe I missed something, but error:

TASK [postgresql-extensions : Add extensions to the databases]
Extension pg_cron is not available

[vitabaks]

Are you sure you have installed the expansion package?

Check that it is listed in vars/Debian.yml (or vars/RedHat.yml)

example:

postgresql_packages:
   ...
  - postgresql-{{ postgresql_version }}-cron

next, launch a playbook with tags:

ansible-playbook deploy_pgcluster.yml --tags install_postgres, postgresql_extensions