Isolating environments with RabbitMQ virtual hosts

Question

Pulumi · Accepted Answer

Isolating different environments within RabbitMQ can be achieved by using virtual hosts (vhosts). A vhost in RabbitMQ is a logical grouping that allows for complete separation of exchanges, queues, bindings, user permissions, and more. This means you can use vhosts to create isolated environments for development, testing, and production within the same RabbitMQ instance.

To implement this using Pulumi with the RabbitMQ provider, you would typically:

1. Install the RabbitMQ Pulumi provider.
2. Create a RabbitMQ `VHost` resource for each environment you want to isolate.
3. Create RabbitMQ `User` resources and set permissions for each vhost.
4. Optionally, define `Exchange`, `Queue`, and `Binding` resources within each vhost.

Below is a Pulumi program written in TypeScript that demonstrates how to create separate vhosts for `development` and `production`, including users and permissions for each environment. Please ensure that you have Pulumi and the RabbitMQ provider installed and configured to connect to your RabbitMQ server before running this code.

```typescript
import * as pulumi from '@pulumi/pulumi';
import * as rabbitmq from '@pulumi/rabbitmq';

// Create a development virtual host
const devVHost = new rabbitmq.VHost("dev-vhost", {
    // A name for the virtual host
    name: "development",
});

// Create a production virtual host
const prodVHost = new rabbitmq.VHost("prod-vhost", {
    // A name for the virtual host
    name: "production",
});

// Create a user for the development environment
const devUser = new rabbitmq.User("dev-user", {
    // Username for the RabbitMQ user
    name: "devUser",
    // Password for the RabbitMQ user, should be kept secret
    password: "devPassword",
});

// Set permissions for the development user on the development vhost
const devPermissions = new rabbitmq.UserVhostPermissions("dev-permissions", {
    // The name of the user to apply permissions to
    user: devUser.name,
    // The name of the vhost the permissions are for
    vhost: devVHost.name,
    // Permissions configuration
    permissions: {
        configure: ".*", // Allows configuring all resources
        write: ".*",     // Grants write access to all resources
        read: ".*",      // Grants read access to all resources
    },
});

// Create a user for the production environment
const prodUser = new rabbitmq.User("prod-user", {
    // Username for the RabbitMQ user
    name: "prodUser",
    // Password for the RabbitMQ user, should be kept secret
    password: "prodPassword",
});

// Set permissions for the production user on the production vhost
const prodPermissions = new rabbitmq.UserVhostPermissions("prod-permissions", {
    // The name of the user to apply permissions to
    user: prodUser.name,
    // The name of the vhost the permissions are for
    vhost: prodVHost.name,
    // Permissions configuration
    permissions: {
        configure: ".*", // Allows configuring all resources
        write: ".*",     // Grants write access to all resources
        read: ".*",      // Grants read access to all resources
    },
});

// Export the names of the vhosts
export const devVHostName = devVHost.name;
export const prodVHostName = prodVHost.name;

// Run `pulumi up` to deploy changes
```

This Pulumi program performs the following actions:

- It imports the necessary libraries for Pulumi and RabbitMQ.
- Two virtual hosts (`devVHost` for development and `prodVHost` for production) are created with names corresponding to their purposes.
- Two users (`devUser` for development and `prodUser` for production) are created with passwords (these should be kept secret in a real environment).
- User permissions for each environment are set, allowing the corresponding users to configure, write, and read resources within their respective vhosts.

Please make sure to replace the placeholder passwords with secure ones before using this code in an actual environment. You can manage secrets using Pulumi's config feature, which encrypts secrets at rest and in transit.

After you run `pulumi up`, Pulumi will apply your configuration and create the vhosts and users as defined in the program. This will establish the isolation between your development and production environments in RabbitMQ.