Nextcloud in docker

guide by example

Purpose

File share & sync.

Files and directory structure

/home
└── ~
    └── docker
        └── nextcloud
            ├── 🗁 nextcloud-data
            ├── 🗁 nextcloud-data-db
            ├── 🗋 .env
            ├── 🗋 docker-compose.yml
            └── 🗋 nextcloud-backup-script.sh

docker-compose

Official examples here

There are several options, default recomendation is apache. Alternative is php-fpm as a stand alone container with either apache or ngnix. Apache with php as a module is used in this setup.

Four containers are spin up

nextcloud-db - mariadb database where files and users meta data are stored
nextcloud - the nextcloud
nextcloud-redis - in memory data store for faster and responsive interface
nextcloud-cron - for being able to run maintnance cronjobs

Two persinstent storages

nextcloud-data bind mount - nextcloud app storage with web server and the works
nextcloud-data-db bind mount - database storage

docker-compose.yml

version: '3'
services:

  nextcloud-db:
    image: mariadb
    container_name: nextcloud-db
    hostname: nextcloud-db
    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
    restart: unless-stopped
    volumes:
      - ./nextcloud-data-db:/var/lib/mysql
    environment:
      - MYSQL_ROOT_PASSWORD
      - MYSQL_PASSWORD
      - MYSQL_DATABASE
      - MYSQL_USER

  nextcloud:
    image: nextcloud:apache
    container_name: nextcloud
    hostname: nextcloud
    restart: unless-stopped
    depends_on:
      - nextcloud-db
      - nextcloud-redis
    links:
      - nextcloud-db
    volumes:
      - ./nextcloud-data/:/var/www/html
    environment:
      - MYSQL_HOST
      - REDIS_HOST
      - NEXTCLOUD_TRUSTED_DOMAINS

  nextcloud-redis:
    image: redis:alpine
    container_name: nextcloud-redis
    hostname: nextcloud-redis
    restart: unless-stopped

  nextcloud-cron:
    image: nextcloud:apache
    container_name: nextcloud-cron
    hostname: nextcloud-cron
    restart: unless-stopped
    volumes:
      - ./nextcloud-data/:/var/www/html
    entrypoint: /cron.sh
    depends_on:
      - nextcloud-db
      - nextcloud-redis

networks:
  default:
    external:
      name: $DEFAULT_NETWORK

.env

# GENERAL
MY_DOMAIN=blabla.org
DEFAULT_NETWORK=caddy_net
TZ=Europe/Prague

# NEXTCLOUD-MARIADB
MYSQL_ROOT_PASSWORD=nextcloud
MYSQL_PASSWORD=nextcloud
MYSQL_DATABASE=nextcloud
MYSQL_USER=nextcloud

# NEXTCLOUD
MYSQL_HOST=nextcloud-db
REDIS_HOST=nextcloud-redis
NEXTCLOUD_TRUSTED_DOMAINS=

Reverse proxy

Caddy v2 is used, details here

Caddyfile

{
    # acme_ca https://acme-staging-v02.api.letsencrypt.org/directory
}

nextcloud.{$MY_DOMAIN} {
    reverse_proxy {
        to nextcloud:80
    }
}

First run

Extra info

check if redis container works
exec in to redis container: docker container exec -it nextcloud-redis /bin/sh
start monitoring: redis-cli MONITOR
in browse start browsing files on the nextcloud, there should be lot of activity in the monitoring
check if cron container works
in settings > administration > basic settings
Background jobs should be set to Cron and the last job info should never be older than 10 minutes
- in settings > administration > overview
  nextcloud complains about missing indexes or big int
in settings > administration > overview
nextcloud complains about missing indexes or big int
- docker exec -it nextcloud /bin/sh
- chsh -s /bin/sh www-data
- su www-data
- cd /var/www/html
- php occ db:add-missing-indices
- php occ db:convert-filecache-bigint
in settings > administration > overview
not resolve "/.well-known/caldav" and "/.well-known/carddav"

docker container exec -it nextcloud /bin/sh
cd /etc/apache2/sites-enabled
echo >> 000-default.conf
echo Redirect 301 /.well-known/carddav /nextcloud/remote.php/dav >> 000-default.conf
echo Redirect 301 /.well-known/caldav /nextcloud/remote.php/dav >> 000-default.conf

#4 Update Nextcloud

docker-compose pull docker-compose up -d docker image prune

#5.Backup and restore

likely there will be container running borg or borgmatic and cron