# Multi Database PostgreSQL with PGBouncer

## ENV file
Create a .env file with the following keys: 

* HOST_IP
* HOST_KIND
* POSTGRES_PASSWORD

### Host IP
I use these with Tailscale - Use this to set the IP for Postgre to bind to.

### Host Kind
In the compose.yaml, you'll see `postgresql.${HOST_KIND}.conf`. This lets you have custom parameters for PostgreSQL per host type.  Use https://pgtune.leopard.in.ua to build your own.

* CPX11 is a Hetzner host - 2 vCPUS, 2GB RAM
* Nano is a Linode host - 1 vCPU, 1GB RAM

## Data directory
If you're using this for Cache, per SolidCache, you may be happy to use named bind mountings and let Docker manage storage.

Alternatively, bind mount a local directory for PostgreSQL to use.