Hello, On Wed, 22 Jul 2020 13:29:31 +0800 Vasu Madhineni <vasumdba1515@xxxxxxxxx> wrote: > We are planning to build a HA setup with pgpool in docker, Could you please > let us know prerequisites for it. > > 1. How many servers are needed for this?, can we plan with 2 servers like > below config. > Primary instance and pgpool in two different docker containers in server > 1 and standby instance in docker container server 2. It depends on your requirements. You can create 3 containers (pgpool, primary and standby) on one server or on different servers. > 2. User requirement: any user needs password less authentication between > nodes. It is possible by configuring pool_hba.conf (Pgpool-II) and pg_hba.conf (PostgreSQL). > 3. Port or firewall rules between servers. Pgpool port and PostgreSQL port need to be accessible. > 4. If planning to create a network bridge between all docker containers > between 2 servers will be any prerequisites for that. You need to make sure all containers can connect to each other. -- Bo Peng <pengbo@xxxxxxxxxxxx> SRA OSS, Inc. Japan