# Installing Dendrite Dendrite can be run in one of two configurations: * A cluster of individual components, dealing with different aspects of the Matrix protocol (see [WIRING.md](./WIRING.md)). Components communicate with one another via [Apache Kafka](https://kafka.apache.org). * A monolith server, in which all components run in the same process. In this configuration, Kafka can be replaced with an in-process implementation called [naffka](https://github.com/matrix-org/naffka). ## Requirements - Go 1.8+ - Postgres 9.5+ - For Kafka (optional if using the monolith server): - Unix-based system (https://kafka.apache.org/documentation/#os) - JDK 1.8+ / OpenJDK 1.8+ - Apache Kafka 0.10.2+ (see https://github.com/matrix-org/dendrite/blob/master/travis-install-kafka.sh for up-to-date version numbers) ## Setting up a development environment Assumes Go 1.8 and JDK 1.8 are already installed and are on PATH. ```bash # Get the code git clone https://github.com/matrix-org/dendrite cd dendrite # Build it go get github.com/constabulary/gb/... gb build ``` If using Kafka, install and start it: ```bash MIRROR=http://apache.mirror.anlx.net/kafka/0.10.2.0/kafka_2.11-0.10.2.0.tgz # Only download the kafka if it isn't already downloaded. test -f kafka.tgz || wget $MIRROR -O kafka.tgz # Unpack the kafka over the top of any existing installation mkdir -p kafka && tar xzf kafka.tgz -C kafka --strip-components 1 # Start the zookeeper running in the background. # By default the zookeeper listens on localhost:2181 kafka/bin/zookeeper-server-start.sh -daemon kafka/config/zookeeper.properties # Start the kafka server running in the background. # By default the kafka listens on localhost:9092 kafka/bin/kafka-server-start.sh -daemon kafka/config/server.properties ``` ## Configuration ### Postgres database setup Dendrite requires a postgres database engine, version 9.5 or later. * Create role: ```bash sudo -u postgres createuser -P dendrite # prompts for password ``` * Create databases: ```bash for i in account device mediaapi syncapi roomserver serverkey federationsender publicroomsapi; do sudo -u postgres createdb -O dendrite dendrite_$i done ``` ### Crypto key generation Generate the keys: ```bash # Generate a self-signed SSL cert for federation: test -f server.key || openssl req -x509 -newkey rsa:4096 -keyout server.key -out server.crt -days 3650 -nodes -subj /CN=localhost # generate ed25519 signing key test -f matrix_key.pem || ./bin/generate-keys -private-key matrix_key.pem ``` ### Configuration Create config file, based on `dendrite-config.yaml`. Call it `dendrite.yaml`. Things that will need editing include *at least*: * `server_name` * `database/*` ## Starting a monolith server It is possible to use 'naffka' as an in-process replacement to Kafka when using the monolith server. To do this, set `use_naffka: true` in `dendrite.yaml`. The monolith server can be started as shown below. By default it listens for HTTP connections on port 8008, so point your client at `http://localhost:8008`. If you set `--tls-cert` and `--tls-key` as shown below, it will also listen for HTTPS connections on port 8448. ```bash ./bin/dendrite-monolith-server --tls-cert=server.crt --tls-key=server.key ``` ## Starting a multiprocess server The following contains scripts which will run all the required processes in order to point a Matrix client at Dendrite. Conceptually, you are wiring together to form the following diagram: ``` /media +---------------------------+ +----------->+------------->| dendrite-media-api-server | ^ ^ +---------------------------+ | | :7774 | | | | | | /directory +----------------------------------+ | | +--------->| dendrite-public-rooms-api-server |<========++ | | | +----------------------------------+ || | | | :7775 | || | | | +<-----------+ || | | | | || | | | /sync +--------------------------+ || | | +--------->| dendrite-sync-api-server |<================++ | | | | +--------------------------+ || | | | | :7773 | ^^ || Matrix +------------------+ | | | | || client_data || Clients --->| client-api-proxy |-------+ +<-----------+ ++=============++ || +------------------+ | | | || || :8008 | | CS API +----------------------------+ || || | +--------->| dendrite-client-api-server |==++ || | | +----------------------------+ || | | :7771 | || | | | || | +<-----------+ || | | || | | || | | +----------------------+ room_event || | +---------->| dendrite-room-server |===============++ | | +----------------------+ || | | :7770 || | | ++==========================++ | +<------------+ || | | | VV | | +-----------------------------------+ Matrix | | | dendrite-federation-sender-server |------------> Servers | | +-----------------------------------+ | | :7776 | | +---------->+ +<-----------+ | | Matrix +----------------------+ SS API +--------------------------------+ Servers --->| federation-api-proxy |--------->| dendrite-federation-api-server | +----------------------+ +--------------------------------+ :8448 :7772 A --> B = HTTP requests (A = client, B = server) A ==> B = Kafka (A = producer, B = consumer) ``` ### Run a client api proxy This is what Matrix clients will talk to. If you use the script below, point your client at `http://localhost:8008`. ```bash ./bin/client-api-proxy \ --bind-address ":8008" \ --client-api-server-url "http://localhost:7771" \ --sync-api-server-url "http://localhost:7773" \ --media-api-server-url "http://localhost:7774" \ --public-rooms-api-server-url "http://localhost:7775" \ ``` ### Run a client api This is what implements message sending. Clients talk to this via the proxy in order to send messages. ```bash ./bin/dendrite-client-api-server --config=dendrite.yaml ``` (If this fails with `pq: syntax error at or near "ON"`, check you are using at least postgres 9.5.) ### Run a room server This is what implements the room DAG. Clients do not talk to this. ```bash ./bin/dendrite-room-server --config=dendrite.yaml ``` ### Run a sync server This is what implements `/sync` requests. Clients talk to this via the proxy in order to receive messages. ```bash ./bin/dendrite-sync-api-server --config dendrite.yaml ``` ### Run a media server This implements `/media` requests. Clients talk to this via the proxy in order to upload and retrieve media. ```bash ./bin/dendrite-media-api-server --config dendrite.yaml ``` ### Run public room server This implements `/directory` requests. Clients talk to this via the proxy in order to retrieve room directory listings. ```bash ./bin/dendrite-public-rooms-api-server --config dendrite.yaml ``` ### Run a federation api proxy This is what Matrix servers will talk to. This is only required if you want to support federation. ```bash ./bin/federation-api-proxy \ --bind-address ":8448" \ --federation-api-url "http://localhost:7772" \ --media-api-server-url "http://localhost:7774" \ ``` ### Run a federation api server This implements federation requests. Servers talk to this via the proxy in order to send transactions. This is only required if you want to support federation. ```bash ./bin/dendrite-federation-api-server --config dendrite.yaml ``` ### Run a federation sender server This sends events from our users to other servers. This is only required if you want to support federation. ```bash ./bin/dendrite-federation-sender-server --config dendrite.yaml ```