Nextcloud LXC Setup Guide (Step-by-Step)
1. Install the TurnKey Nextcloud LXC
pct create 101 local:vztmpl/turnkey-nextcloud-18.0-buster-amd64.tar.gz --storage local-zfs --hostname NextCloud --memory 8000 --cores 4
pct start 101
2. Install PostgreSQL in a Separate LXC
apt update && apt install -y postgresql
systemctl enable --now postgresql
Create the Nextcloud Database
sudo -u postgres psql
CREATE DATABASE nextcloud;
CREATE USER nextclouduser WITH PASSWORD 'REDACTED';
ALTER DATABASE nextcloud OWNER TO nextclouduser;
\q
3. Mount HDD Pool for Nextcloud Data
On Proxmox Host:
zfs create -o mountpoint=/mnt/r430pool/nextcloud r430pool/nextcloud
Bind to LXC:
nano /etc/pve/lxc/101.conf
Add:
mp0: /mnt/r430pool/nextcloud,mp=/mnt/nextcloud
Fix Permissions:
chown -R 101033:101033 /mnt/r430pool/nextcloud
4. Move Nextcloud Data to HDD Storage
systemctl stop apache2
rsync -av /var/www/nextcloud/data/ /mnt/nextcloud/
Update config.php:
'datadirectory' => '/mnt/nextcloud',
Restart:
systemctl restart apache2
5. Install Redis & APCu for Caching
apt install -y redis-server php-redis php-apcu
systemctl restart apache2
Update config.php:
'memcache.local' => '\OC\Memcache\APCu',
'memcache.locking' => '\OC\Memcache\Redis',
'redis' => array(
'host' => 'localhost',
'port' => 6379,
'timeout' => 0.0,
),
6. Verify & Optimize Nextcloud Setup
Check Nextcloud Status:
su - www-data -s /bin/bash -c 'php /var/www/nextcloud/occ status'
Scan for Missing Files:
su - www-data -s /bin/bash -c 'php /var/www/nextcloud/occ files:scan --all'
Optimize Database:
su - www-data -s /bin/bash -c 'php /var/www/nextcloud/occ db:add-missing-indices'
7. Configure Backups (Upcoming)
rsync -av /mnt/nextcloud/ /mnt/nas/backups/nextcloud/
Redacted Configuration Files
/etc/pve/lxc/101.conf
arch: amd64
cores: 4
features: nesting=1
hostname: NextCloud
memory: 8000
mp0: /mnt/r430pool/nextcloud,mp=/mnt/nextcloud
net0: name=eth0,bridge=vmbr0,firewall=1,hwaddr=XX:XX:XX:XX:XX:XX,ip=dhcp,type=veth
ostype: debian
rootfs: local-zfs:subvol-101-disk-0,size=8G
swap: 8000
unprivileged: 1
/var/www/nextcloud/config/config.php (Redacted)
<?php
$CONFIG = array (
'trusted_domains' =>
array (
0 => 'localhost',
1 => '192.168.X.X',
),
'datadirectory' => '/mnt/nextcloud',
'dbtype' => 'pgsql',
'dbname' => 'nextcloud',
'dbhost' => '192.168.X.X',
'dbuser' => 'REDACTED',
'dbpassword' => 'REDACTED',
'installed' => true,
'memcache.local' => '\OC\Memcache\APCu',
'memcache.locking' => '\OC\Memcache\Redis',
'redis' => array(
'host' => 'localhost',
'port' => 6379,
'timeout' => 0.0,
),
);
This guide covers the full Nextcloud LXC installation, database setup, performance tuning, and data storage migration to an HDD pool.