CodeCommit is a managed Git repository that gives you a place to commit and store code. It's integrated with IAM, so the permissions model is similar to other services in AWS. It also has some extra native functionality that makes it a really useful tool in the AWS ecosystem:

CodeCommit is a supported trigger for CodePipeline, meaning that you can configure your pipelines so that they kick off based on a commit to a particular branch. It also has the ability to trigger Lambda functions when certain actions happen in your repository, such as creating or deleting a branch. This is great because you can run a Lambda function to dynamically create a pipeline when a new release branch is created.

In the next section, we will put all of these services together to create our own pipeline that we can use to deploy our Serverless Framework projects.