This is a simple docker-compose and dockerfile setup for starting Foundry VTT from volumes and a ftp server which serves it's data directory
For persistence, anything done from foundry will be persisted into the volumes, and vice-versa
Copy your FoundryVTT data folder into this folder under the name foundryVTTData
Copy your FoundryVTT source folder into this folder under the name foundryVTTSource
Set your foundry port(In foundryVTT configuration) to 30000
Change the value YOUR_PASSWORD in the docker-compose.yml file to a secure password
Open ports 20, 21, 443 and 60000 to 60099(60000-60099) to your host machine
Install docker and docker-compose, guide here
Simply run docker-compose up and you're done, if you encounter any errors, these are surely related to foundry configuration
You need to have every configuration pointing towards the /root/foundryVTTData and /root/foundryVTTSource folders
If the ftp server fails... well, it should not, if it does, good luck
This docker-compose project starts automatically with docker, so you can have your server running 24/7(as long as docker starts automatically)
This server is started on port 443, so, make sure that you use https and certificates, or else you will get errors, my recommendation is to use letsencrypt
To setup https i recommend using letsencrypt(see above), after you setup letsencrypt, you need to copy the certificates into your foundry installation, for that i created a simple sh and service(which executes that sh correctly)
To use it just modify the lines 5 and 6 on copycerts.service.example, specifically these parts:
/YOUR/REPOSITORY/LOCATION to your repository location, so if you downloaded the repo on /home/user/fvtt-docker-runner, that should be there
YOUR_DNS_NAME to your hostname, this is the external name used in both letsencrypt and whichever service you're using
Copy the copycerts.service.example to /etc/systemd/system/copycerts.service via cp copycerts.service.example /etc/systemd/system/copycerts.service
Reload the systemctl daemon via systemctl daemon-reload
Enable the service via systemctl enable copycerts.service
Run the service and make sure it works via service copycerts start
If foundry is configured correctly, you should have https with certificates working