Add support for including annotations on aws-ebs-csi-controller (#8779)

* Add support for including annotations on aws-ebs-csi-controller

* update comment to specify role arn

roles/kubernetes-apps/csi_driver/aws_ebs/defaults/main.yml

@@ -4,3 +4,8 @@ aws_ebs_csi_enable_volume_snapshot: false
 aws_ebs_csi_enable_volume_resizing: false
 aws_ebs_csi_controller_replicas: 1
 aws_ebs_csi_plugin_image_tag: latest
+
+# Add annotions to ebs_csi_controller. Useful if using kube2iam for role assumption
+# aws_ebs_csi_annotations:
+#   - key: iam.amazonaws.com/role
+#     value: your-ebs-role-arn

roles/kubernetes-apps/csi_driver/aws_ebs/templates/aws-ebs-csi-controllerservice.yml.j2

@@ -15,6 +15,12 @@ spec:
       labels:
         app: ebs-csi-controller
         app.kubernetes.io/name: aws-ebs-csi-driver
+{% if aws_ebs_csi_annotations is defined %}
+      annotations:
+{% for annotation in aws_ebs_csi_annotations %}
+        {{ annotation.key }}: {{ annotation.value }}
+{% endfor %}
+{% endif %}
     spec:
       nodeSelector:
         kubernetes.io/os: linux