Script tools for elasticity

- [Instructor] In this next section we're going to…look at scripting for elasticity scenarios.…And as we've been learning in this course,…it's very common to not only gather…the existing state of a property of a service,…like we just did with the elastic load balancer;…it's also common to gather metrics over time.…And that's done with CloudWatch alarms.…We set up an alarm earlier, on an EC2 instance,…you might remember.…I'm in CloudWatch, in the dashboard here.…And you can see that this is the alarm name.…And I've set this up on the CPU utilization…on an instance with the intent,…from an elasticity point, of being able to…then react to the threshold being met…or exceeded for a certain period of time.…

So I could scale up or scale down…my instances, based on this.…So how do we interact with this programatically?…It's really following the same patterns.…Let's jump over into our sample code.…And you can see we use aws cloudwatch…describe-alarms --alarm-name and the we have to…put the long number for the name; the self generated.…