Deploy to DigitalOcean

This tutorial explains how to deploy LabxDB in the cloud using DigitalOcean. For a few dollars per month, you can run LabxDB following the easy setup explained here.

Login to DigitalOcean

DigitalOcean Login

Add SSH key

To connect to your server, a droplet in DigitalOcean vernacular, your SSH login key will be installed by the installation script.

Generate your SSH key

If you don’t already have an SSH key, follow this guide to generate one.

Load your SSH key

After logging in, go to the Security tab of the Account section. Click on Add SSH key:

DigitalOcean SSH

And copy-paste your SSH key and give it a name:

DigitalOcean SSH

You can then see you added SSH key:

DigitalOcean SSH

This process is further explained in this tutorial.

Create droplet

Configure droplet

Go to Create Droplets by clicking on the Create button and select Droplets:

DigitalOcean Plus

Choose an image and version (Debian 10):

DigitalOcean Deploy

Choose a plan:

DigitalOcean Deploy

Choose a region:

DigitalOcean Deploy

In Select additional options, select User data:

DigitalOcean Deploy

Copy-paste one of the following scripts:

  • Test version. Installs LabxDB:
    bash <(wget -qO-
  • Production version. Installs LabxDB with domain name and security (https+firewall):
    NoteWith the parameter ACME_STAGING="yes", the Let’s Encrypt Staging Environment will be used to sign the SSL certificate. The resulting certificate won’t be usable in internet browsers. This is intented to test deploying LabxDB. To use the regular Let’s Encrypt server, change the parameter to ACME_STAGING="no" as described in the post-installation section.
    • If you created a DuckDNS domain, set DUCKDNS_DOMAIN, DUCKDNS_TOCKEN and ACME_EMAIL (with your email) variables (see here)
      bash <(wget -qO-
      export DUCKDNS_DOMAIN=""
      export ACME_EMAIL=""
      export ACME_STAGING="yes"
      bash <(wget -qO-
    • If you have your own domain name, set DOMAIN (with your domain) and ACME_EMAIL (with your email) variables:
      NoteThe installation does not set the IP of your new droplet to your domain name. As a consequence, the certificate creation will fail. Once the droplet installation, restart Caddy as described in the post-installation section to create a valid certificate.
      bash <(wget -qO-
      export DOMAIN=""
      export ACME_EMAIL=""
      export ACME_STAGING="yes"
      bash <(wget -qO-

In Authentication, select SSH keys:

DigitalOcean Deploy

Choose a hostname:

DigitalOcean Deploy

Then Create your new droplet.

Start droplet

Go back to main panel at Droplets and wait for the new droplet to be ready:

DigitalOcean Running

NoteThe Droplet will be available before the install script finishes to run. Wait a few minutes more for LabxDB to be fully installed.


If you used your own domain name or created a staging domain name using ACME_STAGING="yes", follow these steps to create a valid certificate (be aware of limits):

  1. Only if you used your own domain name to install a production version: set the IP (in our example of your new droplet to your domain name (at your domain name registrar or DNS provider). Wait a few minutes for the update to be applied.
  2. Only if you are ready to create a production certificate, login to your instance, open with an editor /etc/caddy/caddy.json and update the ACME server from the staging to the production URL by replacing:
        "module": "acme",
        "ca": ""
        "module": "acme",
        "ca": ""
  3. Login to your instance and restart Caddy using (it forces creating a new certificate):
    systemctl restart caddy

Connect to LabxDB

Test version

Get the IP from your new droplet (in our example Open a browser and go to http://your ip:8081, i.e.

DigitalOcean LabxDB

WarningAccess to this URL is not restricted. Login/password access should be configured to use LabxDB in production.

Production version

LabxDB is accessible at the domain you set in DUCKDNS_DOMAIN or DOMAIN. For our example

NoteThe default login is labxdb and password labxdb20.

The password is defined in /etc/caddy/caddy.json within the http_basic module. To define a new password, it needs to be encoded using:

caddy hash-password

More help is available here.

More configuration

Connect to droplet

Connect with SSH to your droplet using:

ssh root@

Or, if you setup a domain name ( here):



In case the installation is incomplete or failed, the log of install script is saved in /var/log/cloud-init-output.log.

DigitalOcean documentation

DigitalOcean documentation is available for further help.

Last modification: July 19, 2023