Setup DataBase Server for Client Instances
Either Use managed db service from DO
or Setup a new VPS and install Postgres on your VPS
and dont forget to setup and alowing remote host connections
vim /etc/postgresql/14/main/postgresql.conf
Uncomment and edit the listen_addresses attribute to start listening to start listening to all available IP addresses.
Caution
On production dont allow all hosts, only your desired IPs
Replace following in pg_hba.conf
listen_addresses = '*'
Now edit the PostgreSQL access policy configuration file.
vim /etc/postgresql/14/main/pg_hba.conf
Append a new connection policy (a pattern stands for [CONNECTION_TYPE][DATABASE][USER][ADDRESS][METHOD]) in the bottom of the file.
Caution
On production dont allow all hosts, only your desired IPs
Add following in pg_hba.conf
host all all 0.0.0.0/0 md5
We are allowing TCP/IP connections (host) to all databases (all) for all users (all) with any IPv4 address (0.0.0.0/0) using an MD5 encrypted password for authentication (md5).
It is now time to restart your PostgreSQL service to load your configuration changes.
systemctl restart postgresql
And make sure your system is listening to the 5432 port that is reserved for PostgreSQL.
ss -nlt | grep 5432