How assign properly a in-built AWS role to a lambda deployment serverless.yml

Serverless Framework
1

Hello guys,

I have created my serverless.yml where I try to assign a in-build role to my execution lambda function. Unfortunately the way I’m doing it is not handy. I have tried to follow the documentation but all the examples drag me into the footage of new role creating which is something I don’t need. Please check out my file content and let me know how to achieve what I attempt:

service: mylabs

provider:
  name: aws
  runtime: python3.6
  stage: dev
  memorySize: 512 # optional, in MB, default is 1024
  timeout: 10 # optional, in seconds, default is 6
  versionFunctions: false # optional, default is true
  tracing:
    lambda: true # optional, enables tracing for all functions (can be true (true equals 'Active') 'Active' or 'PassThrough')
  environment:   # all the env variables are coming in here
    var1: 12
    var2: 32
  role: mydefaultrole     


functions:
    first-deployment:
        name: dm-my-function
        description: first function deploy by serverless
        runtime: python3.6 # this can be inherated from the provider definition
        handler: src/dm-function1.lambda_handler
        events:
            - schedule:
                rate: cron(0 9 * * ? *)
                name: ${self:functions.first-deployment.name}


resources:
    Resources:
        mydefaultrole:
            role: 'arn:aws:iam::account:role/lambdabasicrole'
2

This has been solved with the new version file:

service: mylabs

provider:
  name: aws
  runtime: python3.6
  stage: dev
  memorySize: 512 # optional, in MB, default is 1024
  timeout: 10 # optional, in seconds, default is 6
  versionFunctions: false # optional, default is true
  tracing:
    lambda: true # optional, enables tracing for all functions (can be true (true equals 'Active') 'Active' or 'PassThrough')
  environment:   # all the env variables are coming in here
    var1: 12
    var2: 32
  role: mydefaultrole     


functions:
    first-deployment:
        name: dm-my-function
        description: first function deploy by serverless
        runtime: python3.6 # this can be inherated from the provider definition
        handler: src/dm-function1.lambda_handler
        role: 'arn:aws:iam::account:role/lambdabasicrole'
        events:
            - schedule:
                rate: cron(0 9 * * ? *)
                name: ${self:functions.first-deployment.name}