Layers upload on each deploy?

Serverless Framework
3

You’re right about that. Looking into it now.

For the time being, one way to handle this is to have your layer & your service using the layer in different serverless projects.

In your service’s serverless.yml:

service: foobar
provider:
  name: aws
  language: python3.6
functions:
  hello:
    handler: handler.hello
    layers:
      - ${cf:foobar-layer-dev.FoobarLayerExport}

Then in a separate project managing your layer:

service: foobar-layer
provider:
  name: aws
layers:
  foobar:
    path: layer
resources:
  Outputs:
    FoobarLayerExport:
        Value:
          Ref: FoobarLambdaLayer
        Export:
          Name: FoobarLambdaLayer