Using CloudFormation

Using CloudFormation

This is a walkthrough of the “Deploy a Basic Infrastructure Using CloudFormation Templates” A Cloud Gure lab.

In this lab, I will configure and deploy a CloudFormation template. In this scenario, an instance has more compute(a generic term used to reference processing power, memory, networking, storage, and other resources required for the computational success of any program) than needed so I will have to update a template so that the instance has the correct compute needed.

What is CloudFormation?

AWS CloudFormation is a service that gives developers and businesses an easy way to create a set of linked AWS resources and run them in an orderly and predictable fashion. When you use CloudFormation, you manage related resources as a single unit called a stack. CloudFormation uses templates for quick and reliable provisioning of stacks.

Background on this lab.

I already have a CloudFormation stack deployed so I will not need to create one.

Using CloudFormation Designer, Configure the InstanceType Stack Parameter to t3.Micro

1.       I navigated to CloudFormation.

2.       I reviewed the stack info, events, and resources tabs after clicking on the stack.

3.       Then I clicked the on parameters tab.

4.       Then I clicked on update this stack.

5.       Then I clicked on edit template in the designer view.

6.       Then I edited the YAML file to update the instancetype.

Launch the Updated Stack and Verify the New EC2 Resource Is Reachable

1.       I clicked the checkbox to make sure the template was valid.

2.       Then I clicked the cloud icon to update the stack.

3.       Then I confirmed the instance type.

4.       Next, I submitted the update.

5.       The InstanceType Stack Parameter is now set to T3.Micro

Additional security I could do

1.       Used IAM to control access to CloudFormation.

2.       Do not embed credentials in my templates.

3.       Use AWS CloudTrail to log AWS CloudFormation calls.

What did you learn?

In conclusion, I was able to update the CloudFormation stack to the correct instancetype. I grew knowledge of how CloudFormation templates operate. Updating the stack in yaml was simple but using the GUI would be easier. All in all, I learn a lot in this lab.

Thanks for reading my blog.