Docker Container set up by this method can be managed by openmediavault-docker-gui, portainer or from CLI.
In order to be able to reach nextcloud from the internet you need an external IPv4 address and a hostname.
Regarding external IPv4 address check you router or ask your internet service provider.
To register a hostname you can use services like duckdns, selfhost.eu, strato.de or many others.
Make sure to use strong passwords!!!
- Install and fully update OMV4 or OMV5 (a restart might be needed if the kernel has been updated)
- install omv-extras
- for OMV4
- enable docker-ce Repo in omv-extras
- install openmediavault-docker-gui plugin
- select suitable docker base path in Services > Docker > Setting (by default it is placed on the OS drive; in case of limited space on the OS drive it should be placed on a data drive)
- enable docker plugin
- install docker-compose from CLI apt install docker-compose
- for OMV5
- in OMV-extras | settings
- select suitable "Docker Storage" path
- install Docker and Portainer (you can install Cockpit instead of Portainer or also additionally)
- in OMV-extras | settings
- create a user dedicated for docker in the GUI of OMV, let's call him "docker1"
- in the CLI determine UID (user ID) and GID (group ID) of user "docker1" id docker1
Installation of Nextcloud and Letsencrypt in Docker
- forward ports in your router (check user manual of your router how to to this)
- port extern 443 to port 444 intern (IP of your NAS)
- port extern 80 to port 81 intern (IP of your NAS)
- in CLI:
- mkdir /home/docker1 create a folder for user docker1 in home directory
- mkdir /home/docker1/nextcloud create a folder where we will put the docker-compose.yml file to setup nextcloud
- cd /home/docker1/nextcloud change in that directory
- nano docker-compose.yml create an empty file and start the editor
- copy the content of the Source Code box below in the editor, edit the relevant entries and save the file with Ctrl+X and y; name must be "docker-compose.yml"
- to copy the content of the Source Code box use the small icon in the top right corner of the box ("Copy Contents")
- text after "#" are comments and indicate where you need to make adjustments to the file
- PUID is the UID of your docker1 user; PGID is the GID of you docker1 user
- it is not required that the folders ("appdata", "appdata/nextcloud" etc) in "volumes:" exist; they will be created when we run docker-compose
- /srv/dev-disk-by-label-disk1/appdata/nextcloud/config:/config #/srv/dev-disk-by-label-disk1 needs to be adjusted- /srv/dev-disk-by-label-disk1/appdata/nextcloud/data:/data #/srv/dev-disk-by-label-disk1 needs to be adjusted- /srv/dev-disk-by-label-disk1/appdata/nextclouddb:/config #/srv/dev-disk-by-label-disk1 needs to be adjusted- /srv/dev-disk-by-label-disk1/appdata/letsencrypt:/config #/srv/dev-disk-by-label-disk1 needs to be adjusted
- after you saved the file, run docker-compose up -d in the directory where the docker-compose.yml file is located; this will download the needed images and start the container
- when finished, run docker logs -f letsencrypt and check for errors
Configuration of proxy
- cd /srv/dev-disk-by-label-disk1/appdata/letsencrypt/nginx/proxy-confs /srv/dev-disk-by-label-disk1 has to be adjusted
- cp nextcloud.subfolder.conf.sample nextcloud.subfolder.conf this will copy the sample configuration file for nextcloud and removes the .sample so that the file will become active
- nano /srv/dev-disk-by-label-disk1/appdata/nextcloud/config/www/nextcloud/config/config.php and insert the text from the box below at the end, but befor the ");" - change "your.url" to your domain
- docker restart letsencrypt to restart the letsencrypt container
- docker logs -f letsencrypt to check for errors
- docker restart nextcloud
Nextcloud can now be reached with https://your.url/nextcloud
- on the welcome screen of nextcloud we need to configure the database
- click on "Storage&Database"
- select MySQL/MariaDB
- Database user --> "root"
- Database password --> password which has been specified in the docker-compose file with MYSQL_ROOT_PASSWORD
- Database name --> "nextcloud"
- localhost host --> "nextclouddb"
then click "finish setup"
Please note: the configuration of the proxy is highly dependent on how you set up your domain. For further details check the available documentation for letsencrypt. E.g.
Q&A for my HOWTO: forum.openmediavault.org/index…V-and-docker-compose-Q-A/