DEPLOY A RELIABLE MULTI-TIER INFRASTRUCTURE USING CLOUDFORMATION
Today, I will show you the steps to improve reliability of a service by using automation to deploy a reliable cloud infrastructure.
Log into the AWS Console and search for Cloudformation under services.
Click Create Stack, then With new resources (standard).
Click Upload a template file and then click Choose file.
Click Next
Enter the following details:
- Stack name: The name of this stack. For this lab, use WebApp1-VPC and match the case.
- Parameters: Parameters may be left as defaults, you can find out more in the description for each.
At the bottom of the page click Next.
Review the information for the stack. When you’re satisfied with the configuration, at the bottom of the page check I acknowledge that AWS CloudFormation might create IAM resources with custom names then click Create stack.
After a few minutes the final stack status should change from CREATE_IN_PROGRESS to CREATE_COMPLETE. You can click the refresh button to check on the current status. You have now created the VPC stack (well actually CloudFormation did it for you).
Wait until the VPC CloudFormation stack status is CREATE_COMPLETE, then continue. This will take about four minutes.
Now that your stack created, we are now going to the next steps to deploy a web application Cloudformation.
Go to the AWS CloudFormation console at https://console.aws.amazon.com/cloudformation and click Create Stack > With new resources.
Leave Prepare template setting as-is.
- For Template source select Upload a template file
- Click Choose file and supply the CloudFormation template you
Click Next
For Stack name use CloudformationLab
Parameters
- Look over the Parameters and their default values.
- Click Next
Click Next
For Review
- Review the contents of the page
- At the bottom of the page, select I acknowledge that AWS CloudFormation might create IAM resources with custom names
- Click Create stack
This will take you to the CloudFormation stack status page, showing the stack creation in progress.
- Click on the Events tab
- Scroll through the listing. It shows (in reverse order) the activities performed by CloudFormation, such as starting to create a resource and then completing the resource creation.
- Any errors encountered during the creation of the stack will be listed in this tab.
Wait until it shows the Status of CREATE_COMPLETE, then you are finished with this step.
- Click on the CloudFormationLab stack
- Click on the Outputs tab
- For the Key Website URL copy the value. This is the URL of your test web service
- Click the URL and it will bring up the website
Refresh the website several times, note that the EC2 instance and Availability Zone change from among the three available.
Click on the CloudFormation stack that you deployed
Click on the Template tab
The template is written in a format called YAML, which is commonly used for configuration files. CloudFormation templates can also be written in JSON.
The Resources section is the “heart” of the template. It is where you define the infrastructure to be deployed. Look at the first resource defined.
TEAR DOWN THIS LAB
In order to avoid unnecessary charges we will tear down this lab.
Go to the AWS CloudFormation console: https://console.aws.amazon.com/cloudformation
Select the CloudFormation stack to delete and click Delete
In the confirmation dialog, click Delete stack
The Status changes to DELETE_IN_PROGRESS
Click the refresh button to update and status will ultimately progress to DELETE_COMPLETE
When complete, the stack will no longer be displayed. To see deleted stacks use the drop down next to the Filter text box.
To see progress during stack deletion
- Click the stack name
- Select the Events column
- Refresh to see new events
Delete workshop CloudFormation stacks
- First delete the CloudFormationLab CloudFormation stack
- Wait for the CloudFormationLab CloudFormation stack to complete
- Then delete the WebApp1-VPC CloudFormation stack
