crossplane: feat(iam): if else for iam to skip region (#285)

Signed-off-by: haarchri <chhaar30@googlemail.com>

Issue #, if available:
aws-controllers-k8s/community#1150

Description of changes:
skip region for `.APIGroup "iam.aws.crossplane.io"` tested locally with crossplane-contrib/provider-aws#1118 - it is working now 

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

Author: haarchri

templates/crossplane/apis/crd.go.tpl

@@ -18,9 +18,11 @@ import (
 
 // {{ .CRD.Kind }}Parameters defines the desired state of {{ .CRD.Kind }}
 type {{ .CRD.Kind }}Parameters struct {
+	{{- if ne .APIGroup "iam.aws.crossplane.io"}}
 	// Region is which region the {{ .CRD.Kind }} will be created.
 	// +kubebuilder:validation:Required
 	Region string `json:"region"`
+	{{- end }}
 	{{- range $fieldName, $field := .CRD.SpecFields }}
 	{{- if $field.ShapeRef }}
 	{{ $field.ShapeRef.Documentation }}

templates/crossplane/pkg/controller.go.tpl

@@ -40,11 +40,15 @@ type connector struct {
 }
 
 func (c *connector) Connect(ctx context.Context, mg cpresource.Managed) (managed.ExternalClient, error) {
+	{{- if ne .APIGroup "iam.aws.crossplane.io"}}
 	cr, ok := mg.(*svcapitypes.{{ .CRD.Names.Camel }})
 	if !ok {
 		return nil, errors.New(errUnexpectedObject)
 	}
 	sess, err := awsclient.GetConfigV1(ctx, c.kube, mg, cr.Spec.ForProvider.Region)
+	{{- else}}
+	sess, err := awsclient.GetConfigV1(ctx, c.kube, mg, awsclient.GlobalRegion)
+	{{- end}}
 	if err != nil {
 		return nil, errors.Wrap(err, errCreateSession)
 	}