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This is an AWS Lambda Function that will perform a server switch process called Blue Green Deployment. At this point, there is no Approval Process but that process is replaced by a CI/CD Manual Trigger to perform a Blue Green Switch.

• python 3.6
• awscli (install via python pip command - recommended)
• serverless framework
• JSON/YAML
• AWS Client Configuration with Correct AWS KEY and AWS SECRET or AWS ASSUME ROLE Configured

This assumes that a Production ELB, ASG and EC2 instances exists. A new ELB, ASG, EC2 instances are created for a switch over using SSM Parameters.

The SSM Parameter was used to hold Elastic Load Balancer Name and Autoscaling Group Name and the current state of the deployment whether it is a Blue or a Green.

AWS Client was used to push initial default values for the SSM Parameter Keys.