Revert "Move k8s modules to dynamic backend (#39632)" (#40743)

This reverts commit 4373b155a5.

lib/ansible/plugins/lookup/k8s.py

@@ -29,15 +29,11 @@ DOCUMENTATION = """
 
     description:
       - Uses the OpenShift Python client to fetch a specific object by name, all matching objects within a
-        namespace, or all matching objects for all namespaces, as well as information about the cluster.
+        namespace, or all matching objects for all namespaces.
       - Provides access the full range of K8s APIs.
       - Enables authentication via config file, certificates, password or token.
 
     options:
-      cluster_info:
-        description:
-        - Use to specify the type of cluster information you are attempting to retrieve. Will take priority
-          over all the other options.
       api_version:
         description:
         - Use to specify the API version. If I(resource definition) is provided, the I(apiVersion) from the
@@ -119,7 +115,7 @@ DOCUMENTATION = """
 
     requirements:
       - "python >= 2.7"
-      - "openshift >= 0.6"
+      - "openshift == 0.4.1"
       - "PyYAML >= 3.11"
 
     notes:
@@ -193,95 +189,7 @@ RETURN = """
 """
 
 from ansible.plugins.lookup import LookupBase
-
-import os
-
-from ansible.module_utils.six import iteritems
-from ansible.module_utils.k8s.common import K8sAnsibleMixin
-
-try:
-    from openshift.dynamic import DynamicClient
-    from openshift.dynamic.exceptions import NotFoundError
-    HAS_K8S_MODULE_HELPER = True
-except ImportError as exc:
-    HAS_K8S_MODULE_HELPER = False
-
-try:
-    import yaml
-    HAS_YAML = True
-except ImportError:
-    HAS_YAML = False
-
-
-class KubernetesLookup(K8sAnsibleMixin):
-
-    def __init__(self):
-
-        if not HAS_K8S_MODULE_HELPER:
-            raise Exception(
-                "Requires the OpenShift Python client. Try `pip install openshift`"
-            )
-
-        if not HAS_YAML:
-            raise Exception(
-                "Requires PyYAML. Try `pip install PyYAML`"
-            )
-
-        self.kind = None
-        self.name = None
-        self.namespace = None
-        self.api_version = None
-        self.label_selector = None
-        self.field_selector = None
-        self.include_uninitialized = None
-        self.resource_definition = None
-        self.helper = None
-        self.connection = {}
-
-    def run(self, terms, variables=None, **kwargs):
-        self.params = kwargs
-        self.client = self.get_api_client()
-
-        cluster_info = kwargs.get('cluster_info')
-        if cluster_info == 'version':
-            return [self.client.version]
-        if cluster_info == 'api_groups':
-            return [self.client.resources.api_groups]
-
-        self.kind = kwargs.get('kind')
-        self.name = kwargs.get('resource_name')
-        self.namespace = kwargs.get('namespace')
-        self.api_version = kwargs.get('api_version', 'v1')
-        self.label_selector = kwargs.get('label_selector')
-        self.field_selector = kwargs.get('field_selector')
-        self.include_uninitialized = kwargs.get('include_uninitialized', False)
-
-        resource_definition = kwargs.get('resource_definition')
-        src = kwargs.get('src')
-        if src:
-            resource_definition = self.load_resource_definitions(src)[0]
-        if resource_definition:
-            self.kind = resource_definition.get('kind', self.kind)
-            self.api_version = resource_definition.get('apiVersion', self.api_version)
-            self.name = resource_definition.get('metadata', {}).get('name', self.name)
-            self.namespace = resource_definition.get('metadata', {}).get('namespace', self.namespace)
-
-        if not self.kind:
-            raise Exception(
-                "Error: no Kind specified. Use the 'kind' parameter, or provide an object YAML configuration "
-                "using the 'resource_definition' parameter."
-            )
-
-        resource = self.client.resources.get(kind=self.kind, api_version=self.api_version)
-        try:
-            k8s_obj = resource.get(name=self.name, namespace=self.namespace, label_selector=self.label_selector, field_selector=self.field_selector)
-        except NotFoundError:
-            return []
-
-        if self.name:
-            return [k8s_obj.to_dict()]
-
-        return k8s_obj.to_dict().get('items')
+from ansible.module_utils.k8s.lookup import KubernetesLookup
 
 
 class LookupModule(LookupBase):