Chapter 20 – Automation with CloudFormation service

1. A stack.
2. JSON and YAML.
3. Use constraints in the Parameters section.
4. Define the LB URL as an output in the Outputs section.
5. The deployment is trying to deploy the EC2 and VPC in parallel. Since no VPC exists, the instance creation fails. We can fix this with a DependsOn attribute on the EC2 and RDS instances.
6. Create roles for each team with the appropriate permissions for the appropriate resources and allow each team to deploy a stack with the resources that they're responsible for.
7. Determine whether the AWS CLI commands can be written into CloudFormation templates. Store the templates with the code. Provide the location of the templates to the CI server and let the CI server push the template to CloudFormation as a preceding step to the installation of the code on the servers.

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