I performed a nextcloud installation with SSL certificate on centos 7 with docker. I used the docker-compose from the official site (https://github.com/nextcloud/docker/blob/master/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/docker-compose. yml)
but when I access the nexttcloud interface from my browser, and I fill in the connection information, I have the error message (error while trying to create admin user: failed to connect to the database: an exception occurred in the driver: sqlstate [hy000]  access denied for user ‘nextcloud’@‘172.21.0.5’)
I have attached the captures of the docker compose used and the error messages received.
I ask for your help please