Use a Block Storage Volume with Nextcloud
Updated by Linode Written by Jared Kobos
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
These steps install Docker Community Edition (CE) using the official Ubuntu repositories. To install on another distribution, see the official installation page.
Remove any older installations of Docker that may be on your system:
sudo apt remove docker docker-engine docker.io
Make sure you have the necessary packages to allow the use of Docker’s repository:
sudo apt install apt-transport-https ca-certificates curl software-properties-common
Add Docker’s GPG key:
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
Verify the fingerprint of the GPG key:
sudo apt-key fingerprint 0EBFCD88
You should see output similar to the following:
pub 4096R/0EBFCD88 2017-02-22 Key fingerprint = 9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88 uid Docker Release (CE deb)
sub 4096R/F273FCD8 2017-02-22
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
Update your package index and install Docker CE:
sudo apt update sudo apt install docker-ce
Add your limited Linux user account to the
sudo usermod -aG docker $USER
NoteAfter entering the
usermodcommand, you will need to close your SSH session and open a new one for this change to take effect.
Check that the installation was successful by running the built-in “Hello World” program:
docker run hello-world
Download the latest version of Docker Compose. Check the releases page and replace
1.21.2in the command below with the version tagged as Latest release:
sudo curl -L https://github.com/docker/compose/releases/download/1.21.2/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
Set file permissions:
sudo chmod +x /usr/local/bin/docker-compose
Attach a Block Storage Volume
Create a Block Storage Volume and attach it to your Linode. See How to Add a Block Storage Volume to a Linode 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:
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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This guide is published under a CC BY-ND 4.0 license.