SAM adding a new stage to the 'Two-stage pipeline'

Question

I have created a SAM stack with a CI/CD pipeline using this tutorial as a guide. 
https://catalog.workshops.aws/complete-aws-sam/en-US/module-4-cicd/module-4-cicd-codepipeline/50-sampipeinit

I have used sam pipeline init --bootstrap to create a pipeline with the ‘Two-stage pipeline’ from template.

This template crates a pipeline with two stages, test and prod
I would like to insert a new stage in the middle, (A staging stage) 
Is there a simple way to do this?  The codepipline file with about 700 lines of cloud formation code looks very scary  😟

So I don’t want to try this if it is too complicated. I there a beginner  friendly way to do this?

Accepted Answer

However, I can provide you with a simplified approach to achieve this:

Backup your existing CloudFormation template: Before making any changes, it's essential to have a backup of your current CloudFormation template. This ensures you can roll back changes if needed.

Modify the CloudFormation template: Open your CloudFormation template (the one generated by SAM) in an editor. Locate the CodePipeline resource section. You'll typically find it under the Resources key. This section defines your pipeline stages and actions.

Add a new stage: Under the Stages section of the CodePipeline resource, add a new stage definition. This includes specifying the stage name and the actions it contains. Ensure the new stage is placed in the desired position in the pipeline sequence.

Define actions for the new stage: Within the newly added stage definition, specify the actions (such as source, build, deploy) that comprise the stage. Configure these actions according to your deployment requirements.

Save and deploy changes: Once you've made the necessary modifications to the CloudFormation template, save the file. Then, deploy the changes to your AWS environment using the AWS CLI or AWS Management Console.

Test the pipeline: After deployment, test the pipeline to ensure the new stage functions correctly. Trigger a pipeline execution and monitor the execution flow to verify that the new stage is executed as expected.

While this process may seem straightforward, it's crucial to understand the implications of modifying the CloudFormation template directly. Any errors or misconfigurations in the template could result in pipeline failures or unexpected behavior. Therefore, proceed with caution and thoroughly test your changes before deploying them to production environments. Additionally, consider seeking assistance from experienced AWS Support or consulting AWS documentation  https://aws.amazon.com/cloudformation/resources/templates/

Hope it clarifies and if does I would appreciate answer to be accepted so that community can benefit for clarity, thanks ;)

SAM adding a new stage to the 'Two-stage pipeline'

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