dendrite

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Development with Docker

With docker and docker-compose you can easily spin up a development environment and start working on dendrite.

Requirements

docker
docker-compose (version 3+)

Configuration

Create a directory named cfg in the root of the project. Copy the dendrite-docker.yaml file into that directory and rename it to dendrite.yaml. It already contains the defaults used in docker-compose for networking so you will only have to change things like the server_name or to toggle naffka.

You can run the following docker-compose commands either from the top directory specifying the docker-compose file

docker-compose -f docker/docker-compose.yml <cmd>

or from within the docker directory

docker-compose <cmd>

Starting a monolith server

For the monolith server you would need a postgres instance

docker-compose up postgres

and the dendrite component from bin/dendrite-monolith-server

docker-compose up monolith

The monolith will be listening on http://localhost:8008.

You would also have to make the following adjustments to dendrite.yaml.

Set use_naffka: true
Uncomment the database/naffka postgres url.

Starting a multiprocess server

The multiprocess server requires kafka, zookeeper and postgres

docker-compose up kafka zookeeper postgres

and the following dendrite components

docker-compose up client_api media_api sync_api room_server public_rooms_api edu_server
docker-compose up client_api_proxy

The client-api-proxy will be listening on http://localhost:8008.

You would also have to make the following adjustments to dendrite.yaml.

Set use_naffka: false
Comment out the database/naffka postgres url.

Starting federation

docker-compose up federation_api federation_sender
docker-compose up federation_api_proxy

You can point other Matrix servers to http://localhost:8448.

Creating a new component

You can create a new dendrite component by adding an entry to the docker-compose.yml file and creating a startup script for the component in docker/services. For more information refer to the official docker-compose documentation.

  new_component:
    container_name: dendrite_room_server
    hostname: new_component
    # Start up script.
    entrypoint: ["bash", "./docker/services/new-component.sh"]
    # Use the common Dockerfile for all the dendrite components.
    build: ./
    volumes:
      - ..:/build
    depends_on:
      - another_component
    networks:
      - internal

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