The environment variables in the lambda handler has to be set via lambda handler according to the stage. The values for schema, endpoint are different for different stage. How can this be done via yml template. I am new to this, so don't know how this will be done.
Parameters:
Stage: {Type: String, Default: ''}
Resources:
LambdaHandler:
Type: AWS::Serverless::Function
Properties:
Environment:
Variables:
......
......
How to continue further?
template.yaml:
Parameters:
Environment:
AllowedValues:
- dev
- prod
Type: String
Resources:
myLambda:
Type: AWS::Lambda::Function
Properties:
Environment:
Variables:
stage: !Ref Environment
Your shell:
$ aws cloudformation deploy --parameter-overrides Environment=dev
Say you want a variable conditional on the environment:
Parameters:
Environment:
AllowedValues:
- dev
- prod
Type: String
Mappings:
Environments:
dev:
LogLevel: "DEBUG"
prod:
LogLevel: "ERROR"
Resources:
myLambda:
Type: AWS::Lambda::Function
Properties:
Environment:
Variables:
LOG_LEVEL: !FindInMap [Environments, !Ref Environment, LogLevel]
Have a look at this article on how to use stage parameters and use mappings to setup environment variables https://www.singlestoneconsulting.com/blog/cloudformation-mapping-and-conditionals-making-your-templates-more-universal/