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# Nextcloud in docker
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###### guide by example
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chapters
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1. [Docker compose](#1-docker-compose)
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2. [Reverse proxy using caddy v2](#2-Reverse-proxy-using-caddy-v2)
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3. [Some stuff afterwards](#3-Some-stuff-afterwards)
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4. [Update Nextcloud](#4-Update-Nextcloud)
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5. [Backup and restore](#5-Backup-and-restore)
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# #1 Docker compose
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Official examples [here](https://github.com/nextcloud/docker/tree/master/.examples/docker-compose)
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There are several options, default recomendation is apache.
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Alternative is fpm php as stand alone container with either apache or ngnix.</br>
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The default apache with php as a module is used in this setup
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- **Create a new docker network**</br> `docker network create caddy_net`</br>
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All nextcloud containers must be on the same network.
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- **Create a directory structure**
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Where nextcloud docker stuff will be organized.</br>
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Here will be `~/docker/nextcloud`.</br>
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```
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/home
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└── ~
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└── docker
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└── nextcloud
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├── nextcloud-data
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├── .env
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└── docker-compose.yml
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```
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- `nextcloud-data` the directory where '/var/www/html' will be bind-mounted
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- `.env` the env file with the variables
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- `docker-compose.yml` the compose file
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- **Create `.env` file**</br>
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`.env`
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```
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# GENERAL
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MY_DOMAIN=blabla.org
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DEFAULT_NETWORK=caddy_net
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# NEXTCLOUD-MARIADB
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MYSQL_ROOT_PASSWORD=nextcloud
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MYSQL_PASSWORD=nextcloud
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MYSQL_DATABASE=nextcloud
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MYSQL_USER=nextcloud
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```
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- **Create `docker-compose.yml` file**</br>
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Four containers are spin up
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- nextcloud-db - mariadb database where files and users meta data are stored
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- nextcloud-redis - in memory data store for more responsive interface
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- nextcloud-app - the nextcloud
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- nextcloud-cron - for being able to run maintnance cronjobs
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Two persinstent storages
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- nextcloud-db named volume - nextcloud-db:/var/lib/mysql
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- nextcloud-app bind mount - ./nextcloud-data/:/var/www/html
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`docker-compose.yml`
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```
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version: '3'
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services:
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nextcloud-db:
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image: mariadb
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container_name: nextcloud-db
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hostname: nextcloud-db
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command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
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restart: unless-stopped
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volumes:
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- nextcloud-db:/var/lib/mysql
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environment:
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- MYSQL_ROOT_PASSWORD
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- MYSQL_PASSWORD
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- MYSQL_DATABASE
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- MYSQL_USER
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nextcloud-redis:
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image: redis:alpine
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container_name: nextcloud-redis
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hostname: nextcloud-redis
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restart: unless-stopped
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nextcloud-app:
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image: nextcloud:apache
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container_name: nextcloud
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hostname: nextcloud
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restart: unless-stopped
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depends_on:
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- nextcloud-db
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- nextcloud-redis
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links:
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- nextcloud-db
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ports:
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- 8080:80
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volumes:
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- ./nextcloud-data/:/var/www/html
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environment:
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- MYSQL_HOST=nextcloud-db
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- REDIS_HOST=nextcloud-redis
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- NEXTCLOUD_TRUSTED_DOMAINS
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nextcloud-cron:
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image: nextcloud:apache
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container_name: nextcloud-cron
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hostname: nextcloud-cron
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restart: unless-stopped
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volumes:
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- ./nextcloud-data/:/var/www/html
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entrypoint: /cron.sh
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depends_on:
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- nextcloud-db
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- nextcloud-redis
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volumes:
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nextcloud-db:
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networks:
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default:
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external:
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name: $DEFAULT_NETWORK
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```
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- **Run docker compose**
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`docker-compose -f docker-compose.yml up -d`
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# #2 Reverse proxy using caddy v2
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Provides reverse proxy so that more services can run on this docker host,</br>
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and also provides https.</br>
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This is a basic setup, for more details here is
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[Caddy v2 tutorial + examples](https://github.com/DoTheEvo/Caddy-v2-examples)
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- **Have nextcloud to Caddyfile**</br>
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`Caddyfile`
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```
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{
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# acme_ca https://acme-staging-v02.api.letsencrypt.org/directory
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}
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nextcloud.{$MY_DOMAIN} {
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reverse_proxy {
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to nextcloud:80
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}
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}
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```
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- **Create docker-compose.yml**</br>
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`docker-compose.yml`
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```
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version: "3.7"
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services:
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caddy:
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image: "caddy/caddy:alpine"
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container_name: "caddy"
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hostname: "caddy"
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ports:
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- "80:80"
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- "443:443"
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volumes:
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- "./Caddyfile:/etc/caddy/Caddyfile:ro"
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- caddy_lets_encrypt_storage:/data
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- caddy_config_storage:/config
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environment:
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- MY_DOMAIN
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networks:
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default:
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external:
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name: $DEFAULT_NETWORK
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volumes:
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caddy_lets_encrypt_storage:
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caddy_config_storage:
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```
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Make sure docker-compose.yml has the .env file with the same variables for
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$DEFAULT_NETWORK and $MY_DOMAIN
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- **Run it**
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`docker-compose -f docker-compose.yml up -d`
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If something is fucky use `docker logs caddy` to see what is happening.
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Restarting the container can help getting the certificates, if its stuck there.
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Or investigate inside `docker container exec -it caddy /bin/sh`,
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trying to ping hosts that are suppose to be reachable for example.
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# #3. Some stuff afterwards
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- in settings > overview, nextcloud complains about missing indexes or big int
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- docker exec -it nextcloud /bin/sh
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- chsh -s /bin/sh www-data
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- su www-data
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- cd /var/www/html
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- php occ db:add-missing-indices
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- php occ db:convert-filecache-bigint
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# #4 Update Nextcloud
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`docker-compose pull`
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`docker-compose up -d`
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`docker image prune`
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# #5.Backup and restore
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likely there will be container running borg or borgmatic and cron
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