Adding High Availability to an Existing PostgreSQL master-slave

[tuanpv47]

I have a PostgreSQL master–slave (primary–replica) replication setup that streams WAL from the primary to the replica. How can I extend this to a high-availability cluster using Patroni, etcd, and similar tools?

[vitabaks]

1. Enable expert mode

2. Check the box "Postgres exists" for servers that already have a database

3. Specify the correct path to your data directory

4. Create cluster

This will allow you to convert your existing postgres installation into an HA cluster, managed by autobase.

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