[backport/2.2] Move integration test suite from molecule to ansible-test (#392) (#457)

[backport/2.2] Move integration test suite from molecule to ansible-test (#392)

Move integration test suite from molecule to ansible-test
SUMMARY
molecule has been replaced with ansible-test
some test cases have been updated
k8s_apply : remove duplicated tasks increasing the running time of the test
helm: use different namespaces for different test cases in order to wait for the namespace deletion before moving to the next test.
all: remove wait: yes at the end of each test when deleting namespace, the role used to create namespace will ensure that it is deleted before if existing.
ISSUE TYPE
Feature Pull Request
COMPONENT NAME
integration testing
Reviewed-by: Mike Graves mgraves@redhat.com
Reviewed-by: Gonéri Le Bouder goneri@lebouder.net
Reviewed-by: None 
(cherry picked from commit fd61f8b)
SUMMARY


ISSUE TYPE


Bugfix Pull Request
Docs Pull Request
Feature Pull Request
New Module Pull Request

COMPONENT NAME

ADDITIONAL INFORMATION

plugins/modules/k8s_drain.py

@@ -119,20 +119,40 @@ result:
   type: str
 '''
 import copy
-from datetime import datetime
 import time
-from ansible_collections.kubernetes.core.plugins.module_utils.ansiblemodule import AnsibleModule
-from ansible_collections.kubernetes.core.plugins.module_utils.args_common import AUTH_ARG_SPEC
+import traceback
+
+from datetime import datetime
+from ansible_collections.kubernetes.core.plugins.module_utils.ansiblemodule import (
+    AnsibleModule,
+)
+from ansible_collections.kubernetes.core.plugins.module_utils.args_common import (
+    AUTH_ARG_SPEC,
+)
 from ansible.module_utils._text import to_native
 
 try:
     from kubernetes.client.api import core_v1_api
-    from kubernetes.client.models import V1beta1Eviction, V1DeleteOptions
+    from kubernetes.client.models import V1DeleteOptions
     from kubernetes.client.exceptions import ApiException
 except ImportError:
     # ImportError are managed by the common module already.
     pass
 
+HAS_EVICTION_API = True
+k8s_import_exception = None
+K8S_IMP_ERR = None
+
+try:
+    from kubernetes.client.models import V1beta1Eviction as v1_eviction
+except ImportError:
+    try:
+        from kubernetes.client.models import V1Eviction as v1_eviction
+    except ImportError as e:
+        k8s_import_exception = e
+        K8S_IMP_ERR = traceback.format_exc()
+        HAS_EVICTION_API = False
+
 
 def filter_pods(pods, force, ignore_daemonset):
     k8s_kind_mirror = "kubernetes.io/config.mirror"
@@ -271,8 +291,10 @@ class K8sDrainAnsible(object):
                     body = V1DeleteOptions(**definition)
                     self._api_instance.delete_namespaced_pod(name=name, namespace=namespace, body=body)
                 else:
-                    body = V1beta1Eviction(**definition)
-                    self._api_instance.create_namespaced_pod_eviction(name=name, namespace=namespace, body=body)
+                    body = v1_eviction(**definition)
+                    self._api_instance.create_namespaced_pod_eviction(
+                        name=name, namespace=namespace, body=body
+                    )
                 self._changed = True
             except ApiException as exc:
                 if exc.reason != "Not Found":
@@ -404,6 +426,13 @@ def argspec():
 def main():
     module = AnsibleModule(argument_spec=argspec())
 
+    if not HAS_EVICTION_API:
+        module.fail_json(
+            msg="The kubernetes Python library missing with V1Eviction API",
+            exception=K8S_IMP_ERR,
+            error=to_native(k8s_import_exception),
+        )
+
     k8s_drain = K8sDrainAnsible(module)
     k8s_drain.execute_module()