Merge pull request crossplane-contrib#1820 from atarax/atarax/globala…

…ccelerator

CODE_GENERATION.md

@@ -100,6 +100,39 @@ files that help CRD structs satisfy the Go interfaces we use in crossplane-runti
 There are a few things we need to implement manually since there is no support for
 their generation yet.
 
+### Setup Api Group
+
+If a new group of api's has been introduced, we will need write a `Setup` function to satisfy
+the interface which we will need to register the contollers. For example, if you added `globalaccelerator`
+api group, we will need a file in `pkg/controller/globalaccelerator/setup.go with following contents:
+
+```golang
+package globalaccelerator
+
+import (
+	ctrl "sigs.k8s.io/controller-runtime"
+
+	"github.com/crossplane/crossplane-runtime/pkg/controller"
+
+	"github.com/crossplane-contrib/provider-aws/pkg/controller/globalaccelerator/accelerator"
+	"github.com/crossplane-contrib/provider-aws/pkg/controller/globalaccelerator/listener"
+	"github.com/crossplane-contrib/provider-aws/pkg/controller/globalaccelerator/endpointgroup"
+	"github.com/crossplane-contrib/provider-aws/pkg/utils/setup"
+)
+
+// Setup athena controllers.
+func Setup(mgr ctrl.Manager, o controller.Options) error {
+	return setup.SetupControllers(
+		mgr, o,
+		accelerator.SetupAccelerator,
+		listener.SetupListener,
+		endpointgroup.SetupEndpointGroup,
+	)
+}
+```
+
+Now you need to make sure this function is called in setup phase [here](https://github.com/crossplane-contrib/provider-aws/blob/2e52b0a8b9ca9efa132e82549b9a48c13345dd27/pkg/controller/aws.go#L81).
+
 ### Setup Controller
 
 The generated controller needs to be registered with the main controller manager
@@ -130,8 +163,6 @@ func SetupStage(mgr ctrl.Manager, o controller.Options) error {
 }
 ```
 
-Now you need to make sure this function is called in setup phase [here](https://github.com/crossplane/provider-aws/blob/483058c/pkg/controller/aws.go#L84).
-
 #### Register CRD
 
 If the group didn't exist before, we need to register its schema [here](https://github.com/crossplane/provider-aws/blob/master/apis/aws.go).
@@ -210,6 +241,9 @@ external name of the referenced object, you can use the following comment marker
 You can add the package prefix for `type` and `extractor` configurations if they
 live in a different Go package.
 
+Be aware that once you customize the extractor, you will need to implement it yourself.
+An example can be found [here](https://github.com/crossplane-contrib/provider-aws/blob/72a6950/apis/lambda/v1beta1/referencers.go#L35).
+
 ### External Name
 
 Crossplane has the notion of external name that we put under annotations. It corresponds
@@ -274,9 +308,33 @@ func preDelete(_ context.Context, cr *svcapitypes.Stage, obj *svcsdk.DeleteStage
 If the external-name is decided by AWS after the creation (like in most EC2
 resources such as `vpc-id` of `VPC`), then you need to inject `postCreate` to
 set the crossplane resource external-name to the unique identifier of the
-resource, for eg see [`apigatewayv2`](https://github.com/crossplane/provider-aws/blob/master/pkg/controller/apigatewayv2/api/setup.go#L77)
+resource, for eg see [`apigatewayv2`](https://github.com/crossplane/provider-aws/blob/72a6950/pkg/controller/apigatewayv2/api/setup.go#L85)
 You can discover what you can inject by inspecting `zz_controller.go` file.
 
+### Errors On Observe
+
+In some situations aws api returns an error in cases where the resource does not exist.
+It will be noticeable when the resource never gets created but you see an error from the api
+which describes the object. You should see `return ok && awsErr.Code() == "ResourceNotFoundException"` in
+the `IsNotFound`-function of `zz_conversion.go`.
+
+To tell ack which error indicates that the resource is not present, add a similar config to `generator-config.yaml`:
+
+```
+resources:
+  Table:
+    fields:
+      PointInTimeRecoveryEnabled:
+        from:
+          operation: UpdateContinuousBackups
+          path: PointInTimeRecoverySpecification.PointInTimeRecoveryEnabled
+    exceptions:
+      errors:
+        404:
+          code: ResourceNotFoundException
+```
+
+
 ### Readiness Check
 
 Every managed resource needs to report its readiness. We'll do that in `postObserve`

apis/aws.go

@@ -58,6 +58,7 @@ import (
 	elbv2manualv1alpha1 "github.com/crossplane-contrib/provider-aws/apis/elbv2/manualv1alpha1"
 	elbv2v1alpha1 "github.com/crossplane-contrib/provider-aws/apis/elbv2/v1alpha1"
 	emrcontainersv1alpah1 "github.com/crossplane-contrib/provider-aws/apis/emrcontainers/v1alpha1"
+	globalacceleratorv1alpha1 "github.com/crossplane-contrib/provider-aws/apis/globalaccelerator/v1alpha1"
 	gluev1alpha1 "github.com/crossplane-contrib/provider-aws/apis/glue/v1alpha1"
 	iamv1alpha1 "github.com/crossplane-contrib/provider-aws/apis/iam/v1alpha1"
 	iamv1beta1 "github.com/crossplane-contrib/provider-aws/apis/iam/v1beta1"
@@ -148,6 +149,7 @@ func init() {
 		kafkav1alpha1.SchemeBuilder.AddToScheme,
 		transferv1alpha1.SchemeBuilder.AddToScheme,
 		gluev1alpha1.SchemeBuilder.AddToScheme,
+		globalacceleratorv1alpha1.SchemeBuilder.AddToScheme,
 		mqv1alpha1.SchemeBuilder.AddToScheme,
 		mwaav1alpha1.SchemeBuilder.AddToScheme,
 		cloudwatchlogsv1alpha1.SchemeBuilder.AddToScheme,

apis/globalaccelerator/generator-config.yaml

@@ -0,0 +1,28 @@
+ignore:
+  field_paths:
+    - "CreateAcceleratorInput.IdempotencyToken"
+    - "CreateListenerInput.AcceleratorArn"
+    - "CreateListenerInput.IdempotencyToken"
+    - "CreateEndpointGroupInput.ListenerArn"
+    - "CreateEndpointGroupInput.IdempotencyToken"
+  resource_names:
+    - "CustomRoutingAccelerator"
+    - "CustomRoutingEndpointGroup"
+    - "CustomRoutingListener"
+
+resources:
+  Accelerator:
+    exceptions:
+      errors:
+        404:
+          code: AcceleratorNotFoundException
+  Listener:
+    exceptions:
+      errors:
+        404:
+          code: ListenerNotFoundException
+  EndpointGroup:
+    exceptions:
+      errors:
+        404:
+          code: EndpointGroupNotFoundException

apis/globalaccelerator/v1alpha1/custom_types.go

@@ -0,0 +1,64 @@
+/*
+Copyright 2021 The Crossplane Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package v1alpha1
+
+import xpv1 "github.com/crossplane/crossplane-runtime/apis/common/v1"
+
+// CustomAcceleratorParameters contains the additional fields for AcceleratorParameters
+type CustomAcceleratorParameters struct{}
+
+// CustomEndpointGroupParameters contains the additional fields for EndpointGroupParameters
+type CustomEndpointGroupParameters struct {
+	// ListenerArn is the ARN for the Listener.
+	// +immutable
+	// +crossplane:generate:reference:type=Listener
+	// +crossplane:generate:reference:extractor=ListenerARN()
+	// +crossplane:generate:reference:refFieldName=ListenerArnRef
+	// +crossplane:generate:reference:selectorFieldName=ListenerArnSelector
+	ListenerARN *string `json:"listenerArn,omitempty"`
+
+	// ListenerArnRef is a reference to an ARN used to set
+	// the ListenerArn.
+	// +optional
+	ListenerArnRef *xpv1.Reference `json:"listenerArnRef,omitempty"`
+
+	// ListenerArnSelector selects references to Listener used
+	// to set the Arn.
+	// +optional
+	ListenerArnSelector *xpv1.Selector `json:"listenerArnSelector,omitempty"`
+}
+
+// CustomListenerParameters contains the additional fields for ListenerParameters
+type CustomListenerParameters struct {
+	// AcceleratorArn is the ARN for the Accelerator.
+	// +immutable
+	// +crossplane:generate:reference:type=Accelerator
+	// +crossplane:generate:reference:extractor=AcceleratorARN()
+	// +crossplane:generate:reference:refFieldName=AcceleratorArnRef
+	// +crossplane:generate:reference:selectorFieldName=AcceleratorArnSelector
+	AcceleratorArn *string `json:"acceleratorArn,omitempty"`
+
+	// AcceleratorArnRef is a reference to an ARN used to set
+	// the AcceleratorArn.
+	// +optional
+	AcceleratorArnRef *xpv1.Reference `json:"acceleratorArnRef,omitempty"`
+
+	// AcceleratorArnSelector selects references to Accelerator used
+	// to set the Arn.
+	// +optional
+	AcceleratorArnSelector *xpv1.Selector `json:"acceleratorArnSelector,omitempty"`
+}

apis/globalaccelerator/v1alpha1/referencers.go

@@ -0,0 +1,31 @@
+package v1alpha1
+
+import (
+	"github.com/crossplane/crossplane-runtime/pkg/reference"
+	"github.com/crossplane/crossplane-runtime/pkg/resource"
+	"k8s.io/utils/pointer"
+)
+
+// AcceleratorARN returns the status.atProvider.ARN of an Accelerator
+func AcceleratorARN() reference.ExtractValueFn {
+	return func(mg resource.Managed) string {
+		r, ok := mg.(*Accelerator)
+		if !ok {
+			return ""
+		}
+
+		return pointer.StringDeref(r.Status.AtProvider.AcceleratorARN, "")
+	}
+}
+
+// ListenerARN returns the status.atProvider.ARN of an Listener
+func ListenerARN() reference.ExtractValueFn {
+	return func(mg resource.Managed) string {
+		r, ok := mg.(*Listener)
+		if !ok {
+			return ""
+		}
+
+		return pointer.StringDeref(r.Status.AtProvider.ListenerARN, "")
+	}
+}