Using elastic load balancers

For a highly available infrastructure, in most modern production environments, load balancers are one of the most important components. In this recipe, we will learn how to configure AWS elastic load balancers using Salt modules.

How to do it...

1. Create and edit /opt/ salt-cookbook/production/aws/elb.sls to have the following entries:

   salt-cookbook:
       boto_elb.present:
           - region: us-west-2
           - availability_zones:
               - us-west-2a
               - us-west-2c
           - keyid: <access-key>
           - key: '<secret-key>'
           - listeners:
               - elb_port: 80
                 instance_port: 80
                 elb_protocol: HTTP
           - attributes:
               cross_zone_load_balancing:
                 enabled: true
           - health_check:
               target: 'HTTP:80/'
           - cnames:
               - name: lb1.salt-cookbook.com.
                 zone: salt-cookbook.com.
                 ttl: 60

2. Apply the state to the Salt master by running...