Add Function layers support (#35)

Part of aws-controllers-k8s/community#1062

Description of changes:
- Bring back the `Spec.Layers` field
- Add a new field called `LayersReference` in status to store the layers
references returned by the Lambda control plane
- Add hooks to properly set `Status.LayersReference` after a create and
a read call

By submitting this pull request, I confirm that my contribution is made
under the terms of the Apache 2.0 license.

Author: a-hilaly

apis/v1alpha1/ack-generate-metadata.yaml

@@ -1,13 +1,13 @@
 ack_generate_info:
-  build_date: "2022-04-15T17:24:14Z"
-  build_hash: 50c64871bcaf88b9ee200eb8d6b8245fa8f675eb
-  go_version: go1.17.5
-  version: v0.18.4
-api_directory_checksum: a704674d4df0400198d5a11035a2099240bccf80
+  build_date: "2022-04-27T16:40:07Z"
+  build_hash: 141cb9db73f881228ea20e572de3ba9df19d5b6f
+  go_version: go1.18.1
+  version: v0.18.4-4-g141cb9d-dirty
+api_directory_checksum: 7c4e0f8971a8ab06389e98b21c00eddad87366f3
 api_version: v1alpha1
 aws_sdk_go_version: v1.42.0
 generator_config_info:
-  file_checksum: f04b298afa1fd7fd3980226d52412de9ca1523d4
+  file_checksum: c48a2acfc8da0b28ee9b81745b9af773d10c7f71
   original_file_name: generator.yaml
 last_modification:
   reason: API generation

apis/v1alpha1/function.go

@@ -4,8 +4,6 @@ ignore:
     # Alias
     # CodeSigningConfig
     # EventSourceMapping
-  shape_names:
-    - LayerList
 resources:
   Function:
     fields:
@@ -19,6 +17,15 @@ resources:
       Code:
         compare:
           is_ignored: true
+      Layers:
+        set:
+          - method: Create
+            ignore: true
+      LayerStatuses:
+        is_read_only: true
+        from:
+          operation: GetFunction
+          path: Configuration.Layers
     renames:
       operations:
         CreateFunction:
@@ -37,6 +44,8 @@ resources:
         template_path: hooks/function/sdk_read_one_post_set_output.go.tpl
       sdk_create_post_build_request:
         template_path: hooks/function/sdk_create_post_build_request.go.tpl
+      sdk_create_post_set_output:
+        template_path: hooks/function/sdk_create_post_set_output.go.tpl
     update_operation:
       custom_method_name: customUpdateFunction
   Alias:

apis/v1alpha1/generator.yaml

@@ -122,6 +122,13 @@ spec:
                   (KMS) key that's used to encrypt your function's environment variables.
                   If it's not provided, Lambda uses a default service key.
                 type: string
+              layers:
+                description: A list of function layers (https://docs.aws.amazon.com/lambda/latest/dg/configuration-layers.html)
+                  to add to the function's execution environment. Specify each layer
+                  by its ARN, including the version.
+                items:
+                  type: string
+                type: array
               memorySize:
                 description: The amount of memory available to the function (https://docs.aws.amazon.com/lambda/latest/dg/configuration-memory.html)
                   at runtime. Increasing the function memory also increases its CPU
@@ -312,7 +319,7 @@ spec:
                 description: The reason code for the last update that was performed
                   on the function.
                 type: string
-              layers:
+              layerStatuses:
                 description: The function's layers (https://docs.aws.amazon.com/lambda/latest/dg/configuration-layers.html).
                 items:
                   description: An Lambda layer (https://docs.aws.amazon.com/lambda/latest/dg/configuration-layers.html).

apis/v1alpha1/zz_generated.deepcopy.go

@@ -4,8 +4,6 @@ ignore:
     # Alias
     # CodeSigningConfig
     # EventSourceMapping
-  shape_names:
-    - LayerList
 resources:
   Function:
     fields:
@@ -19,6 +17,15 @@ resources:
       Code:
         compare:
           is_ignored: true
+      Layers:
+        set:
+          - method: Create
+            ignore: true
+      LayerStatuses:
+        is_read_only: true
+        from:
+          operation: GetFunction
+          path: Configuration.Layers
     renames:
       operations:
         CreateFunction:
@@ -37,6 +44,8 @@ resources:
         template_path: hooks/function/sdk_read_one_post_set_output.go.tpl
       sdk_create_post_build_request:
         template_path: hooks/function/sdk_create_post_build_request.go.tpl
+      sdk_create_post_set_output:
+        template_path: hooks/function/sdk_create_post_set_output.go.tpl
     update_operation:
       custom_method_name: customUpdateFunction
   Alias:

config/crd/bases/lambda.services.k8s.aws_functions.yaml

@@ -122,6 +122,13 @@ spec:
                   (KMS) key that's used to encrypt your function's environment variables.
                   If it's not provided, Lambda uses a default service key.
                 type: string
+              layers:
+                description: A list of function layers (https://docs.aws.amazon.com/lambda/latest/dg/configuration-layers.html)
+                  to add to the function's execution environment. Specify each layer
+                  by its ARN, including the version.
+                items:
+                  type: string
+                type: array
               memorySize:
                 description: The amount of memory available to the function (https://docs.aws.amazon.com/lambda/latest/dg/configuration-memory.html)
                   at runtime. Increasing the function memory also increases its CPU
@@ -312,7 +319,7 @@ spec:
                 description: The reason code for the last update that was performed
                   on the function.
                 type: string
-              layers:
+              layerStatuses:
                 description: The function's layers (https://docs.aws.amazon.com/lambda/latest/dg/configuration-layers.html).
                 items:
                   description: An Lambda layer (https://docs.aws.amazon.com/lambda/latest/dg/configuration-layers.html).

generator.yaml

@@ -0,0 +1,22 @@
+	if resp.Layers != nil {
+		f16 := []*svcapitypes.Layer{}
+		for _, f16iter := range resp.Layers {
+			f16elem := &svcapitypes.Layer{}
+			if f16iter.Arn != nil {
+				f16elem.ARN = f16iter.Arn
+			}
+			if f16iter.CodeSize != nil {
+				f16elem.CodeSize = f16iter.CodeSize
+			}
+			if f16iter.SigningJobArn != nil {
+				f16elem.SigningJobARN = f16iter.SigningJobArn
+			}
+			if f16iter.SigningProfileVersionArn != nil {
+				f16elem.SigningProfileVersionARN = f16iter.SigningProfileVersionArn
+			}
+			f16 = append(f16, f16elem)
+		}
+		ko.Status.LayerStatuses = f16
+	} else {
+		ko.Status.LayerStatuses = nil
+	}