RabbitMQ is a multi-tenant system in which virtual hosts, or logical groups of entities, control connections, exchanges, queues, bindings, user permissions, policies, and other aspects. The concept is similar to that of Apache virtual hosts and Nginx server blocks. RabbitMQ allows a variety of choices for defining how messages are routed from the publisher to one or more consumers. Virtual Hosts in RabbitMQ allow you to separate apps utilizing the same RabbitMQ instance. RabbitMQ vhosts define a logical grouping of connections, exchanges, queues, bindings, user permissions, and so on within an instance.

What is a Virtual Host?

A virtual host is a hosting service provider that specializes in virtual infrastructure solutions such as virtual servers, computers, storage, and other hybrid platforms that allow for the hosting of applications, data, and services. Shared web hosting is a widely utilized application. Shared web hosting is less expensive than dedicated web hosting since multiple clients can be hosted on a single server. It is also usual for a single company to desire to use numerous domains on the same system so that the names represent the services provided rather than the location where those services are hosted.

Virtual Hosts and Client Connections

A virtual host has a name. When an AMQP 0-9-1 client joins to RabbitMQ, it specifies the host to connect to. If authentication is successful and the username provided is allowed permission to the host, the connection is formed.

Connections to a host can only access exchanges, queues, bindings, and other host-specific resources. For example, an application can consume from one host and then republish to the other. This scenario can involve vhosts from multiple clusters or the same cluster (or just one node). The RabbitMQ Shovel plugin is an example of such an application.

How to Create a Virtual Host in rabbitmq

Step 1: Log in to Virtual Host

First, you need to log in to this and once logged in to the rabbitmq, click on the ‘Admin’, then tap on ‘Virtual Hosts”.

Step 2: Add a new virtual host

Click ‘Add a new virtual host’ and give it an acceptable name. To set up the new virtual host, click the ‘Add virtual host’ option.

Step 3: Create a New User

On the Users tab, tick the ‘Add a user’ box. Then, you may create a username and password for the new user, as well as provide the user access to the Admin (GUI) interface, by clicking the ‘Add User’ option.

Step 4: Assign the New User to the Virtual Host

At last, you have to locate and click on the previously created user.

Conclusion

In this article, we have learned about Virtual hosts in rabbitmq. Virtual hosts in rabbitmq enable the logical grouping and separation of resources. The separation of physical resources is not an objective of virtual hosts, albeit certain resources may be limited for specific virtual hosts.

Virtual Hosts in Rabbitmq – FAQs

What is the use of a virtual host in RabbitMQ?

Virtual hosts allow the logical grouping and separation of resources. The separation of physical resources is not an objective of virtual hosts, albeit certain resources may be limited for specific virtual hosts. RabbitMQ, for example, limits resource permissions to a single virtual host.

What is the difference between a server and a virtual host?

A server, on the other hand, is a virtual machine. It provides data and software for managing corporate and individual websites and applications. A virtual host is a single server that may host several websites.

How does name-based virtual hosting work?

Name-based virtual hosting makes use of the host name provided by the client. This reduces IP addresses and administrative overhead, but the protocol being served must provide the host name at the proper point.

What is the default virtual host?

A default virtual host never serves requests sent to an address/port that is reserved for name-based vhosts.