feat: create user and db

netoik-db.spec

@@ -22,6 +22,15 @@ Install the database management system called postgresql with a predefined confi
 %make_install
 
 %post
+# Create databases and users from DB_USERS variable (separator is ",") if not existing
+echo "$DB_USERS" | IFS="," read -ra users
+for user in "${users[@]}"; do
+  if ! runuser --user=postgres -- psql --quiet --tuples-only --command='\du' | grep --invert-match postgres | grep --quiet "$user"; then
+    runuser --user=postgres -- createuser "$user"
+    runuser --user=postgres -- createdb --owner="$user" "$user"
+  fi
+done
+
 # Restart services
 systemctl daemon-reload
 systemctl reenable --now postgresql.service