A Serverless plugin that writes stack outputs to a .env file during after:deploy hook.

Add the plugin to your serverless.yml

plugins:
  -serverless-output-to-env

Add plugin configuration to serverless.yml

custom:
  outputToEnv:
    fileName: ../../.env
    map:
      YOUR_ENV_KEY: YourOutput
resources:
  Outputs:
    YourOutput:
      Value:
        !Ref FooBar

It will run automatically in after:deploy hook or you can run it manually with:

serverless output-to-env