Configuring CloudWatch alarms

Once cloud resources are configured, the next step is to configure monitoring and alerts for them to be aware of important notifications about issues and problems in the ever-growing infrastructure. Amazon provides CloudWatch for this type of requirement. In this recipe, we will learn about how to configure CloudWatch alarms for AWS resources.

How to do it...

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

   salt-cookbook-alarm:
     boto_cloudwatch_alarm.present:
       - name: 'salt-cookbook UnHealthyHostCount'
       - attributes:
           metric: UnHealthyHostCount
           namespace: AWS/ELB
           statistic: Average
           comparison: '>='
           threshold: 1.0
           period: 300
           evaluation_periods: 4
           unit: null
           description: salt-cookbook UnHealthyHostCount
           dimensions:
             LoadBalancerName: [salt-cookbook]
           alarm_actions: ['arn:aws:sns:us-west- 2:808429213833:salt-cookbook...