eLAND installs on a VPS with Dokku.

See the Dokku installation guide.

  • Install Dokku on a VPS with a fresh Ubuntu 18.04,

  • Domains: don't set a global domain, but set a domain for the app with a wildchart

(all dokku commands are on the server)

dokku domains:set app-name *
  • Create app, install postgres and redis plugins and bind them to the app (see Dokku guide).

  • Configure nginx to allow bigger uploads (for documents)

sudo su - dokku
mkdir /home/dokku/appname/nginx.conf.d/
echo 'client_max_body_size 10M;' > /home/dokku/appname/nginx.conf.d/upload.conf
sudo service nginx reload


A CNAME record with wildcard should point to the Dokku app url.

Subdomains (systems) match schemas

The subdomain part of the url matches the database schema name. matches to database schema flupke.

Set the overall domain with:

dokku config:set appname


Create a IAM user on AWS with access only to S3. Then create a bucket in your region and set the environment variables.

dokku config:set AWS_S3_BUCKET=bucket_name AWS_S3_REGION=eu-central-1
dokku config:set AWS_ACCESS_KEY_ID=aaa AWS_SECRET_ACCESS_KEY=bbb


SMTP mailserver (e.i. Amazon Simple Email Service)


From mail addresses

  • MAIL_FROM_ADDRESS: a mail address when a reply-to address has been set.
  • MAIL_NOREPLY_ADDRESS: a notification mail you can not reply to
  • MAIL_HOSTER_ADDRESS: used for the request-hosting form.

Mail is sent only from MAIL_FROM_ADDRESS and MAIL_NOREPLY_ADDRESS. These addresses should be set up for DKIM in the mailserver.

Google geocoding

Coordinates of addresses are looked up and cached from the Google geocoding service in order to show the location on maps. At maximum every 2 minutes a request is sent to the API in order not to hit the daily free limit. You need to get a key from Google and put the key in the environment variable GOOGLE_GEO_API_KEY

The geocoding service can be blocked by setting GEO_BLOCK to 1.

Hoster Contact Form

The hoster can set up general contact forms to let people contact him/her: The Domain of a request-hosting form can be set with:

  • APP_HOSTER_CONTACT_domain=name@link


  • domain is the server name of the contact form. All uppercase and dots become double underline.
  • name: The name of the contact form or the context.
  • link: The link to bring the user back.

Permanent Redirects


Redirects to A double underscore in the key represents a dot in the domain.

Other environment vars

  • TIMEZONE: defaults to 'Europe/Brussels'
  • MASTER_PASSWORD: sha512 encoded password for 'master' -> gives admin access to all Systems.


Link a postgres database to the app.

Schemas to be set up can be found in the /setup directory See also Migrate from eLAS 3.x


Link a redis instance to the app.

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