Docker with docker-compose

• git clone https://github.com/fr0tt/benotes_docker-compose .or
  wget https://raw.githubusercontent.com/fr0tt/benotes_docker-compose/master/docker-compose.yml && wget https://raw.githubusercontent.com/fr0tt/benotes_docker-compose/master/.env.example

  download a docker-compose.yml and .env file

• cp .env.example .env

  "enable" the .env file to be detected/used by docker-compose

• optional: only change in your .env file APP_PORT if you wish to run this app under a different port
• docker compose up -d

  start docker container

• docker compose exec --user application app sh

  access the app service

• php artisan install

  amongst others: create an admin account. Type yes if asked.

• docker compose pull && docker compose up -d

  Restart the docker container and fetch a new image if available

The docker-compose file uses a named volume to persist data. The reason for that is that bind mounts are more error-prone when it comes to permissions and terrible when it comes to inserting data beforehand.

However if you must use bind mounts do the following:

• change the docker-compose file by (un)comment this section

volumes:
- .env:/var/www/.env
- ./data/storage/app/public/thumbnails:/var/www/storage/app/public/thumbnails
- ./data/storage/backup:/var/www/storage/backup
- ./data/storage/logs:/var/www/storage/logs
#- benotes_storage:/var/www/storage

• mkdir -p data/storage
• docker compose exec app sh

  access app container as root

• chown -R www-data:www-data storage && chmod -R 774 storage

  Make this directory writable for the webserver

Short answer: You only have to make sure that the storage directory is owned by www-data (see Volume section above).

Long answer: If you keep your existing docker-compose.yml you are going to use bind mounts which should not be a problem for you since it had to work so far and the new image uses the same exact paths as before. Also you are going to use MySQL instead of PostgreSQL but that should not be a problem either.
However if you would like to adapt and use the new docker-compose.yml file you need to start the container once before you use it to let the docker engine create and bootstrap the volume for you. After that you can copy all subfolders of data into the newly created volume which might be located at /var/lib/docker/volumes/yourBenotesInstallationDirectoryName_benotes_storage/_data - next to the database volume. (You can also use docker volume ls and docker volume inspect to locate it.)