Use a Block Storage Volume with Nextcloud
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What is Nextcloud?
Nextcloud is a cloud storage platform that allows you to store and access your files from any device. This guide shows how to attach a Block Storage Volume to a Linode in order to meet the demands of a large file library.
Before You Begin
- You will need root access to your Linode, or a user account with
- Update your system.
Install Docker and Docker Compose
To install Docker CE (Community Edition), follow the instructions within one of the guides below:
For complete instructions on even more Linux distributions, reference the Install Docker Engine section of Docker’s official documentation.
Docker Compose is available in plugin and standalone variants. However, Docker’s official documentation prioritizes the plugin. Further, the plugin has a straightforward installation and works well with past Docker Compose commands.
These steps thus show how to install the Docker Compose plugin. If you are interested in installing the standalone Docker Compose application, follow Docker’s official installation guide.
Many tutorials retain the Docker Compose standalone command format, which looks like the following:
Be sure to replace this with the plugin’s command format when using this installation method. This typically just means replacing the hyphen with a space, as in:
docker compose [command]
Enable the Docker repository for your system’s package manager. The repository is typically already enabled after you have installed the Docker engine. Follow our relevant guide on installing Docker to enable the repository on your system.
Update your package manager, and install the Docker Compose plugin.
- On Debian and Ubuntu systems, use the following commands:
sudo apt update sudo apt install docker-compose-plugin
- On CentOS, Fedora, and other RPM-based distributions, use the following commands:
sudo yum update sudo yum install docker-compose-plugin
Attach a Block Storage Volume
Create a Block Storage Volume and attach it to your Linode. See View, Create, and Delete Block Storage Volumes for instructions on how to do this from the Linode Manager.
You can also use the Linode CLI to create a new Volume. The command below creates a 20GB Volume with the label
nextcloudattached to a Linode labeled
nextcloud-linode. Adjust the command as needed:
linode-cli volume create nextcloud -l nextcloud-linode -s 20
Create a filesystem on the Block Storage Volume, then create a mount point per the instructions from the Linode Manager:
Check available disk space. Notice that there is some overhead with the Volume due to the file system:
Filesystem 1G-blocks Used Available Use% Mounted on /dev/root 20G 2G 18G 6% / devtmpfs 1G 0G 1G 0% /dev tmpfs 1G 0G 1G 0% /dev/shm tmpfs 1G 1G 1G 2% /run tmpfs 1G 0G 1G 0% /run/lock tmpfs 1G 0G 1G 0% /sys/fs/cgroup tmpfs 1G 0G 1G 0% /run/user/1000 /dev/sdc 20G 1G 19G 1% /mnt/nextcloud
Change the ownership of the mount point:
sudo chown username:username /mnt/nextcloud/
Configure Nextcloud with Docker Compose
Nextcloud provides an official
docker-compose.yml file for persisting data to a database when running the Nextcloud container. You can edit this file to bind the data volumes to your Block Storage Volume’s mount point.
Create a directory for Nextcloud:
mkdir ~/nextcloud && cd ~/nextcloud
In a text editor, create
docker-compose.ymland add the following content. Add an appropriate password for MariaDB:
- File: ~/nextcloud/docker-compose.yml
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
version: '2' volumes: nextcloud: db: services: db: image: mariadb restart: always volumes: - /mnt/nextcloud/:/var/lib/mysql environment: - MYSQL_ROOT_PASSWORD= - MYSQL_PASSWORD= - MYSQL_DATABASE=nextcloud - MYSQL_USER=nextcloud app: image: nextcloud ports: - 8080:80 links: - db volumes: - /mnt/nextcloud/data:/var/www/html restart: always
Launch the Docker Compose configuration:
docker-compose up -d
Nextcloud should be available at port
8080on your Linode’s public IP address.
When creating an admin account, open the Storage & database drop-down menu, fill in the information as shown below, and enter the MariaDB password you used in the
After you have created an admin account, the Nextcloud dashboard will be displayed. Click on the
+icon in the upper left and select Upload file. For demonstration purposes, choose a large file (an Ubuntu
.isofile was used to generate the output below).
After the file has uploaded successfully, return to the terminal and check to see your available space:
Filesystem 1G-blocks Used Available Use% Mounted on /dev/root 20G 2G 17G 11% / devtmpfs 1G 0G 1G 0% /dev tmpfs 1G 0G 1G 0% /dev/shm tmpfs 1G 1G 1G 2% /run tmpfs 1G 0G 1G 0% /run/lock tmpfs 1G 0G 1G 0% /sys/fs/cgroup /dev/sdc 20G 2G 17G 11% /mnt/nextcloud tmpfs 1G 0G 1G 0% /run/user/1000
The output should show that the file has been stored in
/mnt/nextcloud, which is the mount point for the Block Storage Volume.
You may wish to consult the following resources for additional information on this topic. While these are provided in the hope that they will be useful, please note that we cannot vouch for the accuracy or timeliness of externally hosted materials.
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