How to Manage Parallel Infrastructure Development in AWS?

You might want to consider using ephemeral environments as another solution. This could help manage resources better and ensure that you're not stepping on each other's toes. Check out this article for more details: https://theburningmonk.com/2023/02/how-to-handle-serverful-resources-when-using-ephemeral-environments/

Absolutely, CloudFormation can simplify this for you. You just need to create different stacks with unique names, like `appA-branchX`, `appA-branchY`, etc. Remember to use CloudFormation's automatic resource naming; it allows you to create multiple stacks without conflicts. If you're specifying individual names, make sure to pass those in as variables for things like IAM roles or security groups. This way, everything stays organized and you can clean up easily once you’re done testing!

You're on the right path since you're already using Infrastructure as Code (IaC). Just ensure your CloudFormation templates are parameterized so you can pass in names specific to each environment. For instance, append the branch or feature name to your resource names. If you switch to the AWS CDK, it’ll make naming easier with a helper function that generates these names. Plus, update your CI/CD pipeline to deploy infrastructure on GitHub events, and it can automatically tear down resources when a feature branch is merged! Let me know if you want to explore some third-party tools that might help with this too!

I suggest setting up your CI/CD pipeline to manage changes more effectively. Perhaps dedicate branches for each environment: every commit can deploy to development, followed by testing in QA through pull requests, and then to production once verified. Utilize AWS Parameter Store and pipeline variables to manage environment specifics within a single template, naming each resource based on the environment. For example, a resource could be referred to as `MyAppStack-dev`. Happy to provide examples if you need them!