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Consul Discovery Agent for ActiveMQ

Out of the box, Apache ActiveMQ, supports a few Discovery protocols, e.g. multicast, static and master-slave

This library adds support for performing Discovery against a Consul agent, by specifying API access point and service name.

Currently, the library is in a proof-of-concept state and has only been tested against Jboss A-MQ but should work fine with vanilla ActiveMQ as well.

Install

Jboss A-MQ

mvn clean install
cp target/active-mq-consul-discovery-[VERSION]-jar-with-dependencies.jar [JBOSS A-MQ HOME]/deploy/

Configure

Network of brokers

Configure a network connector with consul as URI in activemq.xml

<networkConnectors>
  <networkConnector uri="consul:(http://consul.example.com?service=active-mq&amp;address=amq.example.com&amp;port=61616)"/>
</networkConnectors>

This will perform discovery against http://consul.example.com/v1/health/service/active-mq, i.e. the actual API endpoint is automatically appended and should NOT be included in the URI.

The following parameters are required:

service
the name of the service to register with Consul
address
the address to the service, i.e the host at which A-MQ listens
port
the port on which A-MQ listens

The following parameters are supported but not required:

serviceId
the ID for this instance of the service. Will be randomly generated if left out.
maxQuarantineTime
The maximum time to quarantine a failing peer service that is still available in Consul. Defaults at 120 000 ms
interval
The interval with which to poll Consul for service instances. Defaults at 30 000 ms

Client-side

Tested in Jboss EAP 6.4 Make sure the active-mq consul client JAR is included in the resource adapter module, and enter a URI similar to this:

discovery:(consul:(http://consul:8500?service=active-mq&clientOnly=true))

Road-map

Planned items are:

  • Maven releases

Contributions

Feel free to make feature requests or preferably pull requests!

License

Licensed under the Apache License, Version 2.0