Initial import

multidb-pg-pgbouncer/README.md

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+# 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.