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dendrite/INSTALL.md
Erik Johnston e9314e5b30 Untangle precommit and travis test scripts (#288)
2017-10-10 11:02:39 +01:00

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# 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 [scripts/install-local-kafka.sh](scripts/install-local-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 (c.f. [scripts/install-local-kafka.sh](scripts/install-local-kafka.sh)):
```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
```
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