Add eks_nodegroup waiters (#975)

Add eks_nodegroup waiters

SUMMARY
Add waiters for eks_nodegroup module to manage deleted and created states.
PR eks_nodegroup: ansible-collections/community.aws#1415
ISSUE TYPE

Feature Pull Request

COMPONENT NAME
waiter.py

Reviewed-by: Alina Buzachis <None>

changelogs/fragments/975-waiters-eks_nodegroup.yml

@@ -0,0 +1,2 @@
+minor_changes:
+- module_utils/waiters - Add waiters to manage eks_nodegroup module (https://github.com/ansible-collections/community.aws/pull/1415).

plugins/module_utils/waiters.py

@@ -535,6 +535,42 @@
                     "expected": "ResourceNotFoundException"
                 }
             ]
+        },
+        "NodegroupActive": {
+            "delay": 20,
+            "maxAttempts": 60,
+            "operation": "DescribeNodegroup",
+            "acceptors": [
+                {
+                    "state": "success",
+                    "matcher": "path",
+                    "argument": "nodegroup.status",
+                    "expected": "ACTIVE"
+                },
+                {
+                    "state": "retry",
+                    "matcher": "error",
+                    "expected": "ResourceNotFoundException"
+                }
+            ]
+        },
+        "NodegroupDeleted": {
+            "delay": 20,
+            "maxAttempts": 60,
+            "operation": "DescribeNodegroup",
+            "acceptors": [
+                {
+                    "state": "retry",
+                    "matcher": "path",
+                    "argument": "nodegroup.status == 'DELETING'",
+                    "expected": True
+                },
+                {
+                    "state": "success",
+                    "matcher": "error",
+                    "expected": "ResourceNotFoundException"
+                }
+            ]
         }
     }
 }
@@ -1108,6 +1144,18 @@ def route53_model(name):
         core_waiter.NormalizedOperationMethod(
             eks.describe_fargate_profile
         )),
+    ('EKS', 'nodegroup_active'): lambda eks: core_waiter.Waiter(
+        'nodegroup_active',
+        eks_model('NodegroupActive'),
+        core_waiter.NormalizedOperationMethod(
+            eks.describe_nodegroup
+        )),
+    ('EKS', 'nodegroup_deleted'): lambda eks: core_waiter.Waiter(
+        'nodegroup_deleted',
+        eks_model('NodegroupDeleted'),
+        core_waiter.NormalizedOperationMethod(
+            eks.describe_nodegroup
+        )),
     ('ElasticLoadBalancing', 'any_instance_in_service'): lambda elb: core_waiter.Waiter(
         'any_instance_in_service',
         elb_model('AnyInstanceInService'),