LAMBDA deployment to different env based on version

Question

Hello,

We are have dev and stage api gateway url in same aws account, would like to deploy to different version of lambda in these two environment.

dev	
        https://********.execute-api.ap-southeast-2.amazonaws.com/dev

Stage
	https://*********.execute-api.ap-southeast-2.amazonaws.com/stage

Can you say how to achieve this in aws codepipeline (cloudformation).
Let me know if you required more info.

Answer

Hi,

given you have both API and lambda in same account you could use Lambda aliases (https://docs.aws.amazon.com/lambda/latest/dg/configuration-aliases.html).

You can :
* create two aliases for your lambda, DevAlias and StageAlias
* Associate same or different Lambda version to them
* Associate the lambda aliases as lambda integrations with the API Gateway.

I would look into Code Deploy abilities to perform Canary deployment for Lambda aliases. Some references:
* https://effectiveserverless.com/lambda-codedeploy-canary
* https://towardsaws.com/lambda-canary-based-deployment-using-codepipeline-codedeploy-and-sam-3226c7514b59?gi=642939ec36cb

Hope it helps

LAMBDA deployment to different env based on version

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