The aim of this guide is to explain how to configure multi-tenant AMQP for multiple datacenters.

For a distributed platform, Abiquo you will create a virtual host for the API and watchtower, and then separate virtual hosts for each datacenter.

Properties

API configuration

To configure the API:

1. Set abiquo.rabbitmq.multitenant to true

2. Create an API virtual host, the default virtual host is / and you can use this if you do not have a monolithic environment. (See below for monolithic configuration)

Create an Abiquo API user with full access to the configured virtual host

rabbitmqctl add_user admin admin
rabbitmqctl set_permissions -p / admin ".*" ".*" ".*"

Watchtower configuration

The virtual host to use must be the same one configured and used by the API and the user can also be the same.

Watchtower uses the properties defined in the abiquo.properties file, so be sure to configure the properties:

• abiquo.rabbitmq.virtualHost

• abiquo.rabbitmq.username

• abiquo.rabbitmq.password

See Abiquo configuration properties#rabbitmq

How to add a new data center

Each datacenter in Abiquo has a unique ID configured with the abiquo.datacenter.id property and the value of this property will be used as name of a new virtual host.

1. Create a new virtual host named with the value of the abiquo.datacenter.id property value

   rabbitmqctl add_vhost dc2

2. Add a new user for the new datacenter

    rabbitmqctl add_user dc2_user dc2_password

3. Configure access to the new virtual host for the Abiquo API user

   rabbitmqctl set_permissions -p dc2 admin ".*" ".*" ".*"

4. Configure access to the new virtual host for the datacenter user

    rabbitmqctl set_permissions -p dc2 dc2_user ".*" ".*" ".*"

To list permissions on the virtual hosts use the following commands. Log in as the api user to access the API virtual host.

> rabbitmqctl list_permissions -p /
Listing permissions in vhost "/" ...
admin.*.*.*

> rabbitmqctl list_permissions -p dc2
Listing permissions in vhost "dc2" ...
dc2_user.*.*.*
admin.*.*.*

Check that properties on remote services match the configured values:

• abiquo.datacenter.id = dc2

• abiquo.rabbitmq.virtualHost = dc2

• abiquo.rabbitmq.username = dc2_user

• abiquo.rabbitmq.password= dc2_password

How to run a monolithic Abiquo with multi-tenant enabled

To configure a monolithic installation:

• Configure the API virtual host as the same as the monolithic datacenter (value of property abiquo.datacenter.id

• Configure access to the datacenter virtual host for Abiquo API user

• Note that you do not need a separate user for the datacenter

You can add any other datacenters (that are not monolithic) as described in the previous section.