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101-rpc-configuration.md

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Rpc Configuration

This document is for rpc configuration in zero system. You can configure current zero instance as two Rpc roles: Server/Client, Rpc require micro service environment instead of standalone, it means that you must read this document first: 2.3 - Micro Service Environment .

1. Rpc Server

You can configure rpc server in vertx-server.yml directly, it's not needed to create new configuration files.

- name: ipc-cronus
  type: ipc
  config:
    port: 6883
    host: 0.0.0.0
    ssl: false
    type: PEM

You can add new node of type=ipc IPC ( Internal Process Calling ) instead of http, Here are some additional configuration info of rpc to enable SSL.

  • ssl: Whether enable SSL communication with Rpc
  • type: Here are three types of SSL, please refer gRpc/vertx document to see more details of the types:
    • JKS
    • PKCS12
    • PEM

2. Rpc Client

Rpc client configuration must be configured standalone. Here are the comments:

In your vertx.yml configuration up.god.file, you must extend another lime node as following:

zero:
  lime: etcd3, rpc

Then you must create new up.god.file vertx-rpc.yml with following content:

rpc:
  ssl: false
  uniform:
    type: PEM
  extension:
    {name}:
      type: XXX

Please be careful about the attributes uniform and extensionit's the same except following:

  • The system will scan all client configuration under extension by name setted first. For example the target name is up-ceous, you must set {name} to up-ceous, then when current service communicate with** up-ceous **service, the client configuration will use it under extension instead of uniform.
  • If there is no configuration under extension, the uniform configuration will be used. uniform just like default client configuration.

This configuration up.god.file is only used in SSL mode.

3. SSL Configuraiton ( Examples )

Here are some examples of Rpc SSL configuration.

## vertx-server.yml
# Rpc Server with PEM ( OpenSSLEngine )
- name: ipc-cronus
  type: ipc
  config:
    port: 6883
    host: 0.0.0.0
    ssl: true
    type: PEM
    cert: tlk/server-cert.pem
    key: tlk/server-key.pem

# Rpc Server with Jsk ( JSKEngine )
- name: ipc-cronus
  type: ipc
  config:
    port: 6883
    host: 0.0.0.0
    ssl: true
    type: JKS
    jsk: tlk/server-key.jks
    password: wibble

## vertx-rpc.yml ( The name depend on lime )
# Rpc Client use default
rpc:
  ssl: true
  uniform:
    type: PEM
    cert: tlk/server-cert.pem
    key: tlk/server-key.pem

# Rpc Client with spec service

rpc:
  ssl: true
  uniform:
    type: PEM
    cert: tlk/server-cert.pem
    key: tlk/server-key.pem
  extension:
    up-cerous:
      type: JKS
      jsk: tlk/server-key.jks
      password: wibble