postgres create admin user with password code example
Example 1: create postgres user
CREATE DATABASE yourdbname;
CREATE USER youruser WITH ENCRYPTED PASSWORD 'yourpass';
GRANT ALL PRIVILEGES ON DATABASE yourdbname TO youruser;
Example 2: create password for user in postgres
ALTER USER davide WITH PASSWORD 'hu8jmn3';
Example 3: postgres create admin user with password
sudo -u postgres createuser -s -i -d -r -l -w <<username>>
sudo -u postgres psql -c "ALTER ROLE <<username>> WITH PASSWORD '<<password>>';"