airship
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treasuremap
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treasuremap/tools/upgrades/postgresql
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Matt McEuen 16cdf842d2 Incorporate HA PostgreSQL 
This change integrates changes related to the new Patroni-enabled
high availability included in the postgresql helm chart.

1. Updates the version of the postgresql chart
2. Adds users/passphrases for the postgresql replication and exporter users
3. Sets the default number of replicas to 3 (except for skiff & sloop)
4. Adds documentation/scripting for upgrading the chart

Co-Authored-By: Evgeniy L <eli@mirantis.com>
Change-Id: I51e63fb2444610cfb144bc587a6a179fa4830809
 		2019-07-15 19:39:38 +00:00
..
README.md Incorporate HA PostgreSQL 2019-07-15 19:39:38 +00:00
patroni_endpoint_cleaner.sh Incorporate HA PostgreSQL 2019-07-15 19:39:38 +00:00
patroni_endpoint_cleaner_remove.sh Incorporate HA PostgreSQL 2019-07-15 19:39:38 +00:00
patroni_endpoint_cleaner_unit.sh Incorporate HA PostgreSQL 2019-07-15 19:39:38 +00:00

README.md

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

The 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 the 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.

This documentation project outlines a reference architecture for automated cloud provisioning and management, leveraging a collection of interoperable open-source tools.

Post upgrade

After the chart upgrade is complete, the patroni_endpoint_cleaner_remove.sh script should be run. This will simply clean up the systemd unit that was created previously.