Docker: If you already have postgres running on your local you need to stop it for the docker one to run with no errors like below: psql: error: FATAL: password authentication failed for user "postgres" FATAL: password authentication failed for user "postgres" To check status/stop/start local postgres: # sudo /etc/init.d/postgresql stop/status/start Restart Docker #sudo systemctl restart docker Permissions denied while creating a script #sudo chmod 666 /var/run/docker.sock