PostgreSQL Patroni Upgrade Scripts
Upgrading a live site from the old, unclustered PostgreSQL chart to the newer, Patroni-managed version takes a small amount of out-of-band scripting to ensure a smooth hands-free upgrade.
Prior to upgrade
patroni_endpoint_cleaner_unit.sh script should be run prior to upgrading
the postgresql chart. It installs a systemd unit which in turn will run
patroni_endpoint_cleaner.sh script. During chart upgrade, the script
will delete the postgresql endpoints, allowing Patroni to recreate them with the
appropriate annotations for it to manage them ongoing.
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After the chart upgrade is complete, the
script should be run. This will simply clean up the systemd unit that was