Pulsar manager backend

Pulsar manager backend is a supplement and improvement to Pulsar broker.

Handle complex query requests
Route requests (add, delete, update) to brokers
Support multi broker, dynamic change environment

Supported configurations of backend

Name	Default	Description
`server.port`	7750	Port of backend service
`pulsar-manager.account`	pulsar	Login account
`pulsar-manager.password`	pulsar	Login password
`redirect.host`	localhost	IP address of front-end service
`redirect.port`	9527	Port of front-end service
`insert.stats.interval`	30000ms	Time interval for collecting statistical information
`clear.stats.interval`	300000ms	Time interval for cleaning statistics

How to set parameters when starting back-end services

java -jar ./build/libs/pulsar-manager.jar --redirect.host=http://localhost --redirect.port=9527 insert.stats.interval=600000

Use custom databases

If you have a large amount of data, you can use a custom database. The following is an example of PostgreSQL.

Initialize database and table structures using file.
Modify the configuration file and add PostgreSQL configuration

spring.datasource.driver-class-name=org.postgresql.Driver
spring.datasource.url=jdbc:postgresql://127.0.0.1:5432/pulsar_manager
spring.datasource.username=postgres
spring.datasource.password=postgres

Compile to generate a new executable jar package

./gradlew -x build -x test

Enable JWT Auth

If you want to turn on JWT authentication, configure the following parameters:

backend.jwt.token token for the superuser. You need to configure this parameter during cluster initialization.
jwt.broker.token.mode Two modes of generating token, SECRET and PRIVATE.
jwt.broker.public.key Configure this option if you are using the PRIVATE mode.
jwt.broker.private.key Configure this option if you are using the PRIVATE mode.
jwt.broker.secret.key Configure this option if you are using the SECRET mode.

For more information, see Apache Pulsar

Method 1: Use command-line tool

java -jar ./build/libs/pulsar-manager.jar --redirect.host=http://localhost --redirect.port=9527 insert.stats.interval=600000 --backend.jwt.token=token --jwt.broker.token.mode=PRIVATE --jwt.broker.private.key=file:///path/broker-private.key --jwt.broker.public.key=file:///path/broker-public.key

Method 2. Configure the application.properties file

backend.jwt.token=token

jwt.broker.token.mode=PRIVATE
jwt.broker.public.key=file:///path/broker-public.key
jwt.broker.private.key=file:///path/broker-private.key

or 
jwt.broker.token.mode=SECRET
jwt.broker.secret.key=file:///path/broker-secret.key