Self-Host Nextcloud on a VPS — Own Your Drive, Calendar and Contacts

What You Need

• A VPS with at least 2 GB RAM (4 GB is comfortable once you add the calendar, contacts and preview generation)
• Ubuntu 22.04 or 24.04 with SSH access
• A domain or subdomain pointed at the server's IP

Storage is the real sizing question, not CPU. Nextcloud itself is light; your files are what grow. Pick a plan by how much you plan to store, and remember you can resize later.

Step 1: Install Docker

curl -fsSL https://get.docker.com | sh

Step 2: The Compose File

This runs Nextcloud with a Postgres database and Caddy for automatic HTTPS — no manual certificate wrangling. Save it as docker-compose.yml:

services:
  db:
    image: postgres:16-alpine
    restart: always
    environment:
      POSTGRES_DB: nextcloud
      POSTGRES_USER: nextcloud
      POSTGRES_PASSWORD: change-this-password
    volumes:
      - db:/var/lib/postgresql/data

  app:
    image: nextcloud:apache
    restart: always
    environment:
      POSTGRES_HOST: db
      POSTGRES_DB: nextcloud
      POSTGRES_USER: nextcloud
      POSTGRES_PASSWORD: change-this-password
      NEXTCLOUD_TRUSTED_DOMAINS: cloud.example.com
    volumes:
      - nextcloud:/var/www/html
    depends_on:
      - db

  caddy:
    image: caddy:2-alpine
    restart: always
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./Caddyfile:/etc/caddy/Caddyfile
      - caddy_data:/data
    depends_on:
      - app

volumes:
  db:
  nextcloud:
  caddy_data:

Step 3: The Caddyfile

Caddy fetches and renews a Let's Encrypt certificate for you. Create Caddyfile next to the compose file:

cloud.example.com {
  reverse_proxy app:80
}

Replace cloud.example.com with your real domain (in both files), then bring it up:

docker compose up -d

Open https://cloud.example.com and create your admin account. The certificate is issued automatically on first request.

Step 4: Lock It Down

Two settings that matter on a public server:

1. In Settings → Administration → Security, confirm you are served over HTTPS only.
2. Do not expose the Postgres port. In the compose above it is only reachable inside the Docker network, which is correct — never add a ports: entry to the db service.

Step 5: Back It Up

Your data lives in two Docker volumes. A nightly backup to off-site storage is a one-liner with rclone (configure a remote first with rclone config):

docker compose exec -T db pg_dump -U nextcloud nextcloud | gzip > /root/nc-db.sql.gz
docker run --rm -v nextcloud:/data -v /root:/backup alpine tar czf /backup/nc-files.tar.gz -C /data .
rclone copy /root/nc-db.sql.gz remote:nextcloud-backups
rclone copy /root/nc-files.tar.gz remote:nextcloud-backups

Drop that in a cron job and you have real disaster recovery — something the big providers never actually give you.

What It Costs

A personal Nextcloud runs fine on a small VPS; the variable is storage. On NoctHost you pay hourly from a prepaid balance, so a media-heavy instance and a light one cost exactly what they use, and you can top up with crypto without a card on file. For a household drive plus calendar and contacts, the Standard plan (2 vCPU, 4 GB) is the sweet spot.