Have you tried debugging the issue by running the MySQL container alone (i.e. comment out the "bookstack:" section of the docker-compose file)?
Does the container start and run? Are you able to connect to port 3306 of the container from the host, using whatever userid and password you specified?
Have you tried debugging the issue by running the MySQL container alone (i.e. comment out the "bookstack:" section of the docker-compose file)?
Does the container start and run? Are you able to connect to port 3306 of the container from the host, using whatever userid and password you specified?