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Add NextCloud
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David Young
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hero: Backup all your stuff. Share it. Privately.
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# NextCloud
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Nextcloud (_a [fork of OwnCloud](https://owncloud.org/blog/owncloud-statement-concerning-the-formation-of-nextcloud-by-frank-karlitschek/), led by original developer Frank Karlitschek_) is a suite of client-server software for creating and using file hosting services. It is functionally similar to Dropbox, although Nextcloud is free and open-source, allowing anyone to install and operate it on a private server.
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- https://en.wikipedia.org/wiki/Nextcloud
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This recipe is based on the official NextCloud docker image, but includes seprate containers ofor the database (_MariaDB_), Redis (_for transactional locking_), Apache Solr (_for full-text searching_), automated database backup, (_you *do* backup the stuff you care about, right?_) and a separate cron container for running NextCloud's 15-min crons.
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## Ingredients
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1. [Docker swarm cluster](/ha-docker-swarm/design/) with [persistent shared storage](/ha-docker-swarm/shared-storage-ceph.md)
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2. [Traefik](/ha-docker-swarm/traefik) configured per design
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3. DNS entry pointing your NextCloud url (_nextcloud.example.com_) to your [keepalived](ha-docker-swarm/keepalived/) IP
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## Preparation
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### Setup data locations
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We'll need several directories for [static data](/reference/data_layout/#static-data) to bind-mount into our container, so create them in /var/data/nextcloud (_so that they can be [backed up](/recipies/duplicity/)_)
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```
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mkdir /var/data/nextcloud
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cd /var/data/nextcloud
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mkdir -p {apps,config,data,database-dump}
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```
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Now make **more** directories for [runtime data](/reference/data_layout/#runtime-data) (_so that they can be **not** backed-up_):
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```
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mkdir /var/data/runtime/nextcloud
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cd /var/data/runtime/nextcloud
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mkdir -p {db,solr,redis}
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```
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### Prepare environment
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Create nextcloud.env, and populate with the following variables
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```
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NEXTCLOUD_ADMIN_USER=admin
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NEXTCLOUD_ADMIN_PASSWORD=FVuojphozxMVyaYCUWomiP9b
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MYSQL_HOST=db
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# For mysql
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MYSQL_ROOT_PASSWORD=<set to something secure>
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MYSQL_DATABASE=nextcloud
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MYSQL_USER=nextcloud
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MYSQL_PASSWORD=set to something secure>
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# For database backup (keep 7 days daily backups)
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MYSQL_PWD=<set to something secure, same as MYSQL_ROOT_PASSWORD above>
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MYSQL_USER=root
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BACKUP_NUM_KEEP=7
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BACKUP_FREQUENCY=1d
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```
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### Setup Docker Swarm
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Create a docker swarm config file in docker-compose syntax (v3), something like this:
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!!! tip
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I share (_with my [patreon patrons](https://www.patreon.com/funkypenguin)_) a private "_premix_" git repository, which includes necessary docker-compose and env files for all published recipes. This means that patrons can launch any recipe with just a ```git pull``` and a ```docker stack deploy``` 👍
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```
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version: "3.0"
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services:
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nextcloud:
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image: nextcloud
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env_file: /var/data/config/nextcloud/nextcloud.env
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networks:
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- internal
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- traefik_public
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deploy:
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labels:
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- traefik.frontend.rule=Host:nextcloud.example.com
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- traefik.docker.network=traefik_public
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- traefik.port=80
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volumes:
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- /var/data/nextcloud/:/var/www/html
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- /var/data/nextcloud/apps:/var/www/html/custom_apps
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- /var/data/nextcloud/config:/var/www/html/config
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- /var/data/nextcloud/data:/var/www/html/data
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db:
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image: mariadb:10
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env_file: /var/data/config/nextcloud/nextcloud.env
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networks:
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- internal
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volumes:
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- /var/data/runtime/nextcloud/db:/var/lib/mysql
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db-backup:
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image: mariadb:10
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env_file: /var/data/config/nextcloud/nextcloud.env
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volumes:
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- /var/data/nextcloud/database-dump:/dump
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- /etc/localtime:/etc/localtime:ro
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entrypoint: |
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bash -c 'bash -s <<EOF
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trap "break;exit" SIGHUP SIGINT SIGTERM
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sleep 2m
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while /bin/true; do
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mysqldump -h db --all-databases | gzip -c > /dump/dump_\`date +%d-%m-%Y"_"%H_%M_%S\`.sql.gz
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(ls -t /dump/dump*.sql.gz|head -n $$BACKUP_NUM_KEEP;ls /dump/dump*.sql.gz)|sort|uniq -u|xargs rm -- {}
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sleep $$BACKUP_FREQUENCY
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done
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EOF'
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networks:
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- internal
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redis:
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image: redis:alpine
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networks:
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- internal
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volumes:
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- /var/data/runtime/nextcloud/redis:/data
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solr:
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image: solr:6-alpine
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networks:
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- internal
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volumes:
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- /var/data/runtime/nextcloud/solr:/opt/solr/server/solr/mycores
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entrypoint:
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- docker-entrypoint.sh
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- solr-precreate
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- nextant
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cron:
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image: nextcloud
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volumes:
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- /var/data/nextcloud/:/var/www/html
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user: www-data
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networks:
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- internal
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entrypoint: |
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bash -c 'bash -s <<EOF
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trap "break;exit" SIGHUP SIGINT SIGTERM
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while [ ! -f /var/www/html/config/config.php ]; do
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sleep 1
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done
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while true; do
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php -f /var/www/html/cron.php
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sleep 15m
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done
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EOF'
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networks:
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traefik_public:
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external: true
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internal:
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driver: overlay
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ipam:
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config:
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- subnet: 172.16.12.0/24
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```
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!!! note
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Setup unique static subnets for every stack you deploy. This avoids IP/gateway conflicts which can otherwise occur when you're creating/removing stacks a lot. See [my list](/reference/networks/) here.
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## Serving
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### Launch NextCloud stack
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Launch the NextCloud stack by running ```docker stack deploy nextcloud -c <path -to-docker-compose.yml>```
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Log into your new instance at https://**YOUR-FQDN**, with user "admin" and the password you specified in nextcloud.env.
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### Adding full-text search support (optional)
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Once logged in as an admin user, navigate to https://<your FQDN>/index.php/settings/apps, and install the "**nextant**" app for full-text search
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Then navigate to https://<your FQDN>/index.php/settings/admin/additional, scroll down to **Nextant (Full Text Search)**, and enter the following:
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* Address of your solr servlet : **http://solr:8983/solr/**
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* Core: **nextant**
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## Chef's Notes
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1. Since many of my other recipies use PostgreSQL, I'd have preferred to use Postgres over MariaDB, but MariaDB seems to be the [preferred database type](https://github.com/nextcloud/server/issues/5912).
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## Your comments?
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