# Nextcloud on Synology NAS, with Docker Compose

## Install Docker

You can install Docker through the Synology DiskStation Manager (DSM) **Package Center**.

Just search for "docker" and follow the wizard to install docker.


## Enable SSH

You will need to have SSH enabled from the Synology DSM control panel. Please feel free to skip this step if you've already done that.


## Create folder

Use the File Station from Synology DSM to create a new folder in one of your volumes. I created the folder in my `docker` folder.


You need to ensure the user you will SSH with has permissions to create files and folders inside the `docker` folder.

## Create docker-compose manifest

Create a new file (which I called nextcloud.yaml) in the folder you just created.

As per the official docs, you have to set the values for `MYSQL_ROOT_PASSWORD` and `MYSQL_PASSWORD` in the following yaml.

version: '2'

volumes:
  nextcloud:
  db:

services:
  db:
    image: mariadb
    restart: always
    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW --innodb-file-per-table=1 --skip-innodb-read-only-compressed
    volumes:
      - db:/var/lib/mysql
    environment:
      - MYSQL_ROOT_PASSWORD=
      - MYSQL_PASSWORD=
      - MYSQL_DATABASE=nextcloud
      - MYSQL_USER=nextcloud

  app:
    image: nextcloud
    restart: always
    ports:
      - 8080:80
    links:
      - db
    volumes:
      - nextcloud:/var/www/html
    environment:
      - MYSQL_PASSWORD=
      - MYSQL_DATABASE=nextcloud
      - MYSQL_USER=nextcloud
      - MYSQL_HOST=db

IMPORTANT: I also had to change the `command` attribute of the mariadb service, to address the following error:

` Error while trying to initialise the database: An exception occurred while executing a query: SQLSTATE[HY000]: General error: 4047 InnoDB refuses to write tables with ROW_FORMAT=COMPRESSED or KEY_BLOCK_SIZE.`

## Run

**NOTE:** By default, my admin user didn't have permissions to run `docker` commands, so I had to use `sudo`. It was somewhat confusing that the password requested by `sudo` was the password of the same user I was logged in as (the user was an administrator).

$ sudo docker-compose --file nextcloud.yml up --detach

## Setup nextcloud

You can access the nextcloud web UI at: http://your.nas.ip.address:8080.

You will then see the following screen:


Go ahead and add a username/password for your administrator.

I also enabled the installation of the recommended apps, so I can explore what nextcloud has to offer (I am currently a first-time nextcloud user). This took a bit of time. If everything goes well, you'll see the following screen.


Once the installation is completed, you will see this screen:


## Congrats! Nextcloud is up and running on your Synology NAS!

Next step: use nextcloud as the replacement for iCloud photos!