artemis

Architecting messaging solutions with Apache ActiveMQ Artemis

Architecting messaging solutions with Apache ActiveMQ Artemis

As an architect in the Red Hat Consulting team, I’ve helped countless customers with their integration challenges over the last six years. Recently, I had a few consulting gigs around Red Hat AMQ 7 Broker (the enterprise version of Apache ActiveMQ Artemis), where the requirements and outcomes were similar. That similarity made me think that the whole requirement identification process and can be more structured and repeatable.

This guide is intended for sharing what I learned from these few gigs in an attempt to make the AMQ Broker architecting process, the resulting deployment topologies, and the expected effort more predictable—at least for the common use cases. As such, what follows will be useful for messaging and integration consultants and architects tasked with creating a messaging architecture for Apache Artemis, and other messaging solutions in general. This article focuses on Apache Artemis. It doesn’t cover Apache Kafka, Strimzi, Apache Qpid, EnMasse, or the EAP messaging system, which are all components of our Red Hat AMQ 7 product offering.

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Logging incoming and outgoing messages for Red Hat AMQ 7

Logging incoming and outgoing messages for Red Hat AMQ 7

In this article, I will discuss how to capture incoming and outgoing messages for Red Hat AMQ 7 (RHAMQ 7). This might advantageous if you need to log the incoming or outgoing traffic, or the messages from a broker, or during development and/or testing when you want to see all message. Additionally, There may also be a need to modify messages in transit. Using RHAMQ 7 interceptors, you can intercept traffic to and from the RHAMQ 7 broker. You can also modify messages using the interceptor.

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Setting up RBAC on Red Hat AMQ Broker

Setting up RBAC on Red Hat AMQ Broker

One thing that is common in the enterprise world, especially in highly regulated industries, is to have separation of duties. Role-based access controls (RBAC) have built-in support for separation of duties. Roles determine what operations a user can and cannot perform. This post provides an example of how to configure proper RBAC on top of Red Hat AMQ, a flexible, high-performance messaging platform based on the open source Apache ActiveMQ Artemis project.

In most of the cases, separation of duties on Red Hat AMQ can be divided into three primary roles:

  1. Administrator role, which will have all permissions
  2. Application role, which will have permission to publish, consume, or produce messages to a specific address, subscribe to topics or queues, or create and delete addresses.
  3. Operation role, which will have read-only permission via the web console or supported protocols

To implement those roles, Red Hat AMQ has several security features that need be configured, as described in the following sections.

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Using the STOMP Protocol with Apache ActiveMQ Artemis Broker

Using the STOMP Protocol with Apache ActiveMQ Artemis Broker

In this article, we will use a Python-based messaging client to connect and subscribe to a topic with a durable subscription in the Apache ActiveMQ Artemis broker. We will use the text-based STOMP protocol to connect and subscribe to the broker. STOMP clients can communicate with any STOMP message broker to provide messaging interoperability among many languages, platforms, and brokers.

If you need to brush up on the difference between persistence and durability in messaging, check Mary Cochran’s article on developers.redhat.com/blog.

A similar process can be used with Red Hat AMQ 7. The broker in Red Hat AMQ 7 is based on the Apache ActiveMQ Artemis project. See the overview on developers.redhat.com for more information.

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How to start multiple Artemis brokers inside Red Hat JBoss EAP-7 container in Master/Slave fashion

To be as simple as possible, we will walk through a stand-alone use-case.

Usually, when we require having messaging features in our stand-alone environment, we use full profile for EAP container.

If we have a requirement with clustering functionalities then we prefer to have HA profile but if clustering and messaging both are required then we go for a full-HA profile.

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