Install Collabora on a VirtualBox UbuntuServer16.04

Steps to install Collabora on a VirtualBox UbuntuServer

Step 1: Install Docker on Ubuntu 16.04

sudo apt update
sudo apt install docker.io

sudo systemctl status docker

sudo systemctl start docker

sudo systemctl enable docker

sudo mkdir /etc/systemd/system/docker.service.d

sudo nano /etc/systemd/system/docker.service.d/DeviceMapper.conf

Paste the following text into the file.

[Service]
ExecStart=
ExecStart=/usr/bin/dockerd --storage-driver=devicemapper -H fd://

sudo systemctl daemon-reload

sudo systemctl restart docker

sudo docker info

Output:

Containers: 1
 Running: 1
 Paused: 0
 Stopped: 0
Images: 1
Server Version: 1.13.1
Storage Driver: devicemapper
 Pool Name: docker-253:1-515579-pool

Step 2 install Collabora

sudo docker pull collabora/code

sudo docker run -t -d -p 127.0.0.1:9980:9980 -e 'domain=your_NextCloud\\.your_domain\\.tld' --restart always --cap-add MKNOD collabora/code

Nginx.vhost configuration:

Put the following text into the files.

server {
  listen 80;
  server_name office.your-domain.com;

  root /usr/share/nginx/office;
}

Nginx.Vhost-ssl configuration

server {
  listen 443 ssl;
  server_name office.your-domain.com;
  root /usr/share/nginx/office;

  ssl_protocols TLSv1.1 TLSv1.2;
  ssl_certificate /etc/letsencrypt/live/office.your-domain.com/fullchain.pem;
  ssl_certificate_key /etc/letsencrypt/live/office.your-domain.com/privkey.pem;

  # static files
  location ^~ /loleaflet {
    proxy_pass https://localhost:9980;
    proxy_set_header Host $http_host;
  }

  # WOPI discovery URL
  location ^~ /hosting/discovery {
    proxy_pass https://localhost:9980;
    proxy_set_header Host $http_host;
  }

  # websockets, download, presentation and image upload
  location ^~ /lool {
    proxy_pass https://localhost:9980;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_set_header Host $http_host;
  }
}

sudo nginx -t

sudo systemctl reload nginx