#!/bin/bash

cmd() {
        sudo -u postgres psql -c "$1"
}

cd /var/lib/postgresql
cmd "DROP DATABASE IF EXISTS ${DBNAME:?};"
cmd "DROP USER IF EXISTS ${DBUSER:?};"
cmd "CREATE USER ${DBUSER:?};"
cmd "CREATE DATABASE ${DBNAME:?};"
cmd "GRANT ALL PRIVILEGES ON DATABASE ${DBNAME:?} TO ${DBUSER:?};"