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Eclipse Ditto :: Docker

This folder contains an example docker-compose.yml which can be used to start Eclipse Ditto with its backing Database - MongoDB - and a reverse proxy - nginx - in front of the HTTP and WebSocket API.

Resource requirements

For a "single instance" setup on a local machine you need at least:

  • 2 CPU cores which can be used by Docker
  • 4 GB of RAM which can be used by Docker

Configure nginx

The nginx's configuration is located in the nginx.conf file and contains a "Basic authentication" for accessing the HTTP and WebSocket API. The users for this sample authentication are configured in the nginx.httpasswd file also located in this directory.

In order to add a new entry to this file, use the "openssl passwd" tool to create a hashed password:

openssl passwd -quiet
 Password: <enter password>
 Verifying - Password: <enter password>

Append the printed hash in the nginx.httpasswd file placing the username who shall receive this password in front like this:

ditto:A6BgmB8IEtPTs

Configuration of the services

You may configure each service via passing system properties via the JAVA_TOOL_OPTIONS environment variable in the entrypoint section for each service.

...
# Alternative approach for configuration of the service
environment:
  - JAVA_TOOL_OPTIONS=-Dditto.gateway.authentication.devops.password=foobar

To get a list of available configuration options you may retrieve them from a running instance via:

# Substitute gateway with the service you are interested in
curl http://devops:foobar@localhost:8080/devops/config/gateway/?path=ditto

Or by going through the configuration files in this repository, all available configuration files are linked here.

Start Eclipse Ditto

docker-compose up -d

Check the logs after starting up:

docker-compose logs -f

Check the resource consumption in order to find out if you e.g. require more memory:

docker stats

Stop Eclipse Ditto

docker-compose down