The short answer: Nextcloud is an open-source program that gives you your own “Drive”: files, calendar and contacts, on a server of yours. It installs on a VPS with Docker Compose in two containers (Nextcloud and a database), behind a proxy with https. You need root access and it is not for shared hosting.
It is third-party software: the customer installs it, updates it and keeps the backups. Our support does not install or repair it (see How far our support goes). Beforehand, have Docker set up: Installing Docker and Docker Compose.
The compose file
In a folder of its own, for example ~/nextcloud, create the file compose.yaml. Change the two passwords to long, different, randomly generated ones:
services:
db:
image: mariadb:10.11
restart: unless-stopped
command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
volumes:
- db:/var/lib/mysql
environment:
MYSQL_ROOT_PASSWORD: (a long password)
MYSQL_DATABASE: nextcloud
MYSQL_USER: nextcloud
MYSQL_PASSWORD: (another long password)
app:
image: nextcloud:apache
restart: unless-stopped
depends_on:
- db
ports:
- "127.0.0.1:8080:80"
volumes:
- nextcloud:/var/www/html
environment:
MYSQL_HOST: db
MYSQL_DATABASE: nextcloud
MYSQL_USER: nextcloud
MYSQL_PASSWORD: (the second password)
NEXTCLOUD_TRUSTED_DOMAINS: cloud.your-domain
OVERWRITEPROTOCOL: https
volumes:
db:
nextcloud:
| 1 |
Start it: docker compose up -d inside the folder. The first time it downloads the images and takes a while.
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| 3 |
Open your domain’s address in the browser and create the administrator. Choose a strong password: this user can do everything.
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What you must not forget
| Topic |
What to do |
| Backups |
The files and the database live in two “volumes”. Copy both, and test the restore. See Docker: volumes and backups. |
| Updating |
Change the image and bring it up again, but one major version at a time: Nextcloud does not support skipping versions. See Updating a Docker application without losing data. |
| Space |
The users’ files take the VPS disk. Nextcloud does not warn you before the disk fills. |
| Security |
Only https in sight; updates up to date; strong passwords; and the rest in Running Docker on a VPS safely. |
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This stores people’s files. A Nextcloud without backups, updates or https is a risk to whoever put what is theirs there. If you do not want to maintain a server, a service built for this may be the better idea.
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If you only need somewhere to put files to share, first see whether what you already have is enough. Nextcloud pays off when you need to control where the data lives.
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The containers start but the address does not open? Open a ticket with the output of docker compose ps (without the passwords).
Open a support ticket
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