Yeah, looks like your bookstack app is unable to connect to its database container.
Have you tried letting run a bit? Sometimes the bookstack container will try to connect to the DB container before it has had sufficient time to initialize properly... It the config is set up properly, it should eventually connect to it.
Like another user mentioned, sometimes "localhost" definition is missing in Windows, so try using the local loopback IP (127.0.0.1) instead of "localhost", to take out DNS/Naming issues from the equation. (APP_URL env variable)
Aside from those points I mentionned, my docker-compose matches yours (no APP_KEY though env variable though).
Yeah, looks like your bookstack app is unable to connect to its database container.
Have you tried letting run a bit? Sometimes the bookstack container will try to connect to the DB container before it has had sufficient time to initialize properly... It the config is set up properly, it should eventually connect to it.
Like another user mentioned, sometimes "localhost" definition is missing in Windows, so try using the local loopback IP (127.0.0.1) instead of "localhost", to take out DNS/Naming issues from the equation. (APP_URL env variable)
Aside from those points I mentionned, my docker-compose matches yours (no APP_KEY though env variable though).
Good luck!