diff --git a/examples/affinity.yaml b/examples/affinity.yaml
new file mode 100644
index 0000000..724fcb5
--- /dev/null
+++ b/examples/affinity.yaml
@@ -0,0 +1,36 @@
+---
+#
+# DECORT kvmvm module example
+#
+- hosts: ansible_master
+  tasks:
+  - name: create a VM named cloud-init_example
+    decort_kvmvm:
+      name: affinity_example
+      annotation: "VM managed by decort_kvmvm module"
+      authenticator: oauth2
+      app_id: ""                                          # Application id from SSO Digital Energy
+      app_secret: ""                                      # API key from SSO Digital Energy
+      controller_url: ""                                  #"https://mr4.digitalenergy.online"
+      rg_id:                                              # Resource group id
+      cpu: 2
+      ram: 2048
+      boot_disk: 10
+      image_name: "DECS Ubuntu 18.04 v1.2.3"              # Name of OS image
+      networks:
+        - type: VINS
+          id:                                             # VINS id
+      tags: "Ansible cloud init example"
+      aff_lable: "Affinity lable"
+      tag:
+        - key: bd
+          value: main
+      aff_rule:
+        - key: app
+          value: main
+          topology: compute
+          policy: REQUIRED
+          mode: EQ
+      state: present
+    delegate_to: localhost
+    register: simple_vm
\ No newline at end of file
diff --git a/examples/anti_affinity.yaml b/examples/anti_affinity.yaml
new file mode 100644
index 0000000..0baa8a2
--- /dev/null
+++ b/examples/anti_affinity.yaml
@@ -0,0 +1,36 @@
+---
+#
+# DECORT kvmvm module example
+#
+- hosts: ansible_master
+  tasks:
+  - name: create a VM named cloud-init_example
+    decort_kvmvm:
+      name: anti-affinity_example
+      annotation: "VM managed by decort_kvmvm module"
+      authenticator: oauth2
+      app_id: ""                                          # Application id from SSO Digital Energy
+      app_secret: ""                                      # API key from SSO Digital Energy
+      controller_url: ""                                  #"https://mr4.digitalenergy.online"
+      rg_id:                                              # Resource group id
+      cpu: 2
+      ram: 2048
+      boot_disk: 10
+      image_name: "DECS Ubuntu 18.04 v1.2.3"              #Name of OS image
+      networks:
+        - type: VINS
+          id:                                             #VINS id
+      tags: "Ansible cloud init example"
+      aff_lable: "Anti affinity lable"
+      tag:
+        - key: bd
+          value: main
+      aaff_rule:
+        - key: app
+          value: main
+          topology: compute
+          policy: REQUIRED
+          mode: ANY
+      state: present
+    delegate_to: localhost
+    register: simple_vm
\ No newline at end of file
diff --git a/examples/cloud-init.yaml b/examples/cloud-init.yaml
new file mode 100644
index 0000000..4163c0b
--- /dev/null
+++ b/examples/cloud-init.yaml
@@ -0,0 +1,38 @@
+#
+# DECORT kvmvm module example
+#
+- hosts: ansible_master
+  tasks:
+  - name: create a VM named cloud-init_example
+    decort_kvmvm:
+      annotation: "VM managed by decort_kvmvm module"
+      authenticator: oauth2
+      app_id: ""                                          # Application id from SSO Digital Energy
+      app_secret: ""                                      # API key from SSO Digital Energy
+      controller_url: ""                                  #"https://mr4.digitalenergy.online"
+      name: cloud-init_example
+      cpu: 2
+      ram: 2048
+      boot_disk: 10
+      image_name: "DECS Ubuntu 18.04 v1.2.3"              #Name of OS image
+      networks:
+        - type: VINS
+          id:                                             #VINS id
+      tags: "Ansible cloud init example"
+      state: present
+      rg_id:                                              #Resource group id
+      ci_user_data:
+        - packages:
+            - apache2
+        - write_files:
+            - content: |
+                
+                Hello World!
+                
+              owner: user:user
+              path: /var/www/html/index.html
+        - hostname: test-apache
+        - ssh_keys:
+            - rsa_public: ssh-rsa AAAAOasDmLxnD=  user@pc
+    delegate_to: localhost
+    register: simple_vm
diff --git a/examples/kubernetes.yaml b/examples/kubernetes.yaml
new file mode 100644
index 0000000..8e73050
--- /dev/null
+++ b/examples/kubernetes.yaml
@@ -0,0 +1,39 @@
+---
+#
+# DECORT k8s module example
+#
+- hosts: ansible_master
+  tasks:
+  - name: obtain JWT
+    decort_jwt:
+      oauth2_url: ""                                     #"https://sso.digitalenergy.online"
+      validity: 1200
+      verify_ssl: false
+    register: token
+    delegate_to: localhost
+
+  - name: create a VM named cloud-init_example
+    decort_k8s:
+      state: present
+      started: True
+      getConfig: True
+      authenticator: jwt
+      jwt: "{{ token.jwt }}"
+      controller_url: ""                                  #"https://mr4.digitalenergy.online"
+      name: "cluster-test"
+      rg_id:                                              # Resource group id
+      k8ci_id:                                            # k8s ci id
+      workers:
+        - name: wg1
+          ram: 1024
+          cpu: 10
+          disk: 10
+          num: 1
+        - name: wg2
+          ram: 1024
+          cpu: 10
+          disk: 10
+          num: 2
+      verify_ssl: false
+    delegate_to: localhost
+    register: kube
\ No newline at end of file
diff --git a/library/decort_k8s.py b/library/decort_k8s.py
index 3e3053b..1ed5d55 100644
--- a/library/decort_k8s.py
+++ b/library/decort_k8s.py
@@ -14,105 +14,247 @@ ANSIBLE_METADATA = {'metadata_version': '1.1',
                     'status': ['preview'],
                     'supported_by': 'community'}
 
-
 from ansible.module_utils.basic import AnsibleModule
 from ansible.module_utils.basic import env_fallback
-
 from ansible.module_utils.decort_utils import *
 
+class decort_k8s(DecortController):
+    def __init__(self,arg_amodule):
+        super(decort_k8s, self).__init__(arg_amodule)
 
-def decort_k8s_package_facts(arg_k8s_facts, arg_check_mode=False):
-    """Package a dictionary of k8s facts according to the decort_k8s module specification. This dictionary will
-    be returned to the upstream Ansible engine at the completion of the module run.
+        validated_acc_id = 0
+        validated_rg_id = 0
+        validated_rg_facts = None
+        validated_k8ci_id = 0
 
-    @param arg_k8s_facts: dictionary with k8s facts as returned by API call to .../k8s/get
-    @param arg_check_mode: boolean that tells if this Ansible module is run in check mode
-    """
+        if arg_amodule.params['name'] == "" and arg_amodule.params['id'] == 0:
+            self.result['failed'] = True
+            self.result['changed'] = False
+            self.result['msg'] = "Cannot manage k8s cluster when its ID is 0 and name is empty."
+            self.fail_json(**self.result)
 
-    ret_dict = dict(id=0,
-                    name="none",
-                    state="CHECK_MODE",
-                    )
 
-    if arg_check_mode:
-        # in check mode return immediately with the default values
-        return ret_dict
+        if not arg_amodule.params['id']:
+            if not arg_amodule.params['rg_id']: # RG ID is not set -> locate RG by name -> need account ID
+                validated_acc_id, _ = self.account_find(arg_amodule.params['account_name'],
+                                                        arg_amodule.params['account_id'])
+                if not validated_acc_id:
+                    self.result['failed'] = True
+                    self.result['changed'] = False
+                    self.result['msg'] = ("Current user does not have access to the account ID {} / "
+                                          "name '{}' or non-existent account specified.").format(arg_amodule.params['account_id'],
+                                                                                                 arg_amodule.params['account_name'])
+                    self.fail_json(**self.result)
+                    # fail the module -> exit
+            # now validate RG
+            validated_rg_id, validated_rg_facts = self.rg_find(validated_acc_id,
+                                                               arg_amodule.params['rg_id'],)
+            if not validated_rg_id:
+                self.result['failed'] = True
+                self.result['changed'] = False
+                self.result['msg'] = "Cannot find RG ID {} / name '{}'.".format(arg_amodule.params['rg_id'],
+                                                                                arg_amodule.params['rg_name'])
+                self.fail_json(**self.result)
+                # fail the module - exit
+            
 
-    if arg_k8s_facts is None:
-        # if void facts provided - change state value to ABSENT and return
-        ret_dict['state'] = "ABSENT"
-        return ret_dict
+            #validate k8ci ID
+
+            validated_k8ci_id = self.k8s_k8ci_find(arg_amodule.params['k8ci_id'])  
+            if not validated_k8ci_id:
+                self.result['failed'] = True
+                self.result['changed'] = False
+                self.result['msg'] = "Cannot find K8CI ID {}.".format(arg_amodule.params['k8ci_id'])
+                self.fail_json(**self.result)
+
+            self.rg_id = validated_rg_id
+            arg_amodule.params['rg_id'] = validated_rg_id
+            arg_amodule.params['rg_name'] = validated_rg_facts['name']
+            self.acc_id = validated_rg_facts['accountId']
+            arg_amodule.params['k8ci_id'] = validated_k8ci_id
 
-    ret_dict['id'] = arg_k8s_facts['id']
-    ret_dict['name'] = arg_k8s_facts['name']
-    ret_dict['techStatus'] = arg_k8s_facts['techStatus']
-    ret_dict['state'] = arg_k8s_facts['status']
+            self.k8s_id,self.k8s_info = self.k8s_find(k8s_id=arg_amodule.params['id'],
+                                                      k8s_name=arg_amodule.params['name'],
+                                                      rg_id=validated_rg_id,
+                                                      check_state=False)
+            if self.k8s_id:
+                self.k8s_should_exist = True
+                self.acc_id = self.k8s_info['accountId']
+            # check workers and groups for add or remove
+        
+        return
+
+    def package_facts(self,check_mode=False):
+        
+        ret_dict = dict(
+            name="",
+            state="CHECK_MODE",
+            account_id=0,
+            rg_id=0,
+            config=None,
+        )
+
+        if check_mode:
+            # in check mode return immediately with the default values
+            return ret_dict
+
+        #if self.k8s_facts is None:
+        #    #if void facts provided - change state value to ABSENT and return
+        #    ret_dict['state'] = "ABSENT"
+        #    return ret_dict
+
+        ret_dict['id'] = self.k8s_info['id']
+        ret_dict['name'] = self.k8s_info['name']
+        ret_dict['techStatus'] = self.k8s_info['techStatus']
+        ret_dict['state'] = self.k8s_info['status']
+        ret_dict['rg_id'] = self.rg_id
+        ret_dict['account_id'] = self.acc_id
+        if self.amodule.params['getConfig'] and self.k8s_info['techStatus'] == "STARTED":
+            ret_dict['config'] = self.k8s_getConfig()
+        return ret_dict
+    
+    def nop(self):
+        """No operation (NOP) handler for Compute management by decort_kvmvm module.
+        This function is intended to be called from the main switch construct of the module
+        when current state -> desired state change logic does not require any changes to
+        the actual Compute state.
+        """
+        self.result['failed'] = False
+        self.result['changed'] = False
+        if self.k8s_id:
+            self.result['msg'] = ("No state change required for K8s  ID {} because of its "
+                                   "current status '{}'.").format(self.k8s_id, self.k8s_info['status'])
+        else:
+            self.result['msg'] = ("No state change to '{}' can be done for "
+                                  "non-existent K8s instance.").format(self.amodule.params['state'])
+        return                         
 
-    return ret_dict
+    def error(self):
+        self.result['failed'] = True
+        self.result['changed'] = False
+        if self.k8s_id:
+            self.result['msg'] = ("Invalid target state '{}' requested for K8s cluster ID {} in the "
+                                   "current status '{}'.").format(self.k8s_id,
+                                                                  self.amodule.params['state'],
+                                                                  self.k8s_info['status'])
+        else:
+            self.result['msg'] = ("Invalid target state '{}' requested for non-existent K8s Cluster name '{}' "
+                                   "in RG ID {} / name '{}'").format(self.amodule.params['state'],
+                                                                    self.amodule.params['name'],
+                                                                    self.amodule.params['rg_id'],
+                                                                    self.amodule.params['rg_name'])
+        return
 
-def decort_k8s_parameters():
-    """Build and return a dictionary of parameters expected by decort_k8s module in a form accepted
-    by AnsibleModule utility class."""
+    def create(self):
+        self.k8s_provision(self.amodule.params['name'],
+                                    self.amodule.params['workers'][0]['name'],
+                                    self.amodule.params['k8ci_id'],
+                                    self.amodule.params['rg_id'],
+                                    self.amodule.params['master_count'],
+                                    self.amodule.params['master_cpu'],
+                                    self.amodule.params['master_ram_mb'],
+                                    self.amodule.params['master_disk_gb'],
+                                    self.amodule.params['workers'][0]['num'],
+                                    self.amodule.params['workers'][0]['cpu'],
+                                    self.amodule.params['workers'][0]['ram'],
+                                    self.amodule.params['workers'][0]['disk'],
+                                    self.amodule.params['extnet_id'],
+                                    self.amodule.params['with_lb'],
+                                    self.amodule.params['description'],)
+        
+        self.k8s_id,self.k8s_info = self.k8s_find(k8s_id=self.amodule.params['id'],
+                                                      k8s_name=self.amodule.params['name'],
+                                                      rg_id=self.rg_id,
+                                                      check_state=False)
+        
+        if self.k8s_id:
+                self.k8s_should_exist = True
+        if self.k8s_id and self.amodule.params['workers'][1]:
+            self.k8s_workers_modify(self.k8s_info,self.amodule.params['workers'])
+        return
+    
+    def destroy(self):
+        self.k8s_delete(self.k8s_id)
+        self.k8s_info['status'] = 'DELETED'
+        self.k8s_should_exist = False
+        return    
+    
+    def action(self,disared_state,started=True):
+        
+        self.k8s_state(self.k8s_info, disared_state,started)
+        self.k8s_id,self.k8s_info = self.k8s_find(k8s_id=self.amodule.params['id'],
+                                                      k8s_name=self.amodule.params['name'],
+                                                      rg_id=self.rg_id,
+                                                      check_state=False)
+        if started == True and self.k8s_info['techStatus'] == "STOPPED":
+            self.k8s_state(self.k8s_info, disared_state,started)
+            self.k8s_info['techStatus'] == "STARTED"
+        self.k8s_workers_modify(self.k8s_info,self.amodule.params['workers'])
 
-    return dict(
-        account_id=dict(type='int', required=False),
-        account_name=dict(type='str', required=False, default=''),
-        annotation=dict(type='str', required=False, default=''),
-        app_id=dict(type='str',
+        return
+    @staticmethod
+    def build_parameters():
+        return dict(
+            account_id=dict(type='int', required=False),
+            account_name=dict(type='str', required=False, default=''),
+            annotation=dict(type='str', required=False, default=''),
+            app_id=dict(type='str',
+                        required=False,
+                        fallback=(env_fallback, ['DECORT_APP_ID'])),
+            app_secret=dict(type='str',
+                            required=False,
+                            fallback=(env_fallback, ['DECORT_APP_SECRET']),
+                            no_log=True),
+            authenticator=dict(type='str',
+                            required=True,
+                            choices=['legacy', 'oauth2', 'jwt']),
+            controller_url=dict(type='str', required=True),
+            # datacenter=dict(type='str', required=False, default=''),
+            jwt=dict(type='str',
                     required=False,
-                    fallback=(env_fallback, ['DECORT_APP_ID'])),
-        app_secret=dict(type='str',
+                    fallback=(env_fallback, ['DECORT_JWT']),
+                    no_log=True),
+            oauth2_url=dict(type='str',
+                            required=False,
+                            fallback=(env_fallback, ['DECORT_OAUTH2_URL'])),
+            password=dict(type='str',
                         required=False,
-                        fallback=(env_fallback, ['DECORT_APP_SECRET']),
+                        fallback=(env_fallback, ['DECORT_PASSWORD']),
                         no_log=True),
-        authenticator=dict(type='str',
-                           required=True,
-                           choices=['legacy', 'oauth2', 'jwt']),
-        controller_url=dict(type='str', required=True),
-        # datacenter=dict(type='str', required=False, default=''),
-        jwt=dict(type='str',
-                 required=False,
-                 fallback=(env_fallback, ['DECORT_JWT']),
-                 no_log=True),
-        oauth2_url=dict(type='str',
-                        required=False,
-                        fallback=(env_fallback, ['DECORT_OAUTH2_URL'])),
-        password=dict(type='str',
-                      required=False,
-                      fallback=(env_fallback, ['DECORT_PASSWORD']),
-                      no_log=True),
-        quotas=dict(type='dict', required=False),
-        state=dict(type='str',
-                   default='present',
-                   choices=['absent', 'disabled', 'enabled', 'present']),
-        permanent=dict(type='bool', default=False),
-        started=dict(type='bool', default=True),
-        user=dict(type='str',
-                  required=False,
-                  fallback=(env_fallback, ['DECORT_USER'])),
-        k8s_name=dict(type='str', required=True),
-        rg_id=dict(type='int', required=True),
-        k8ci_id=dict(type='int', required=True),
-        wg_name=dict(type='str', required=True),
-        master_count=dict(type='int', default=1),
-        master_cpu=dict(type='int', default=2),
-        master_ram_mb=dict(type='int', default=2048),
-        master_disk_gb=dict(type='int', default=10),
-        worker_count=dict(type='int', default=1),
-        worker_cpu=dict(type='int', default=1),
-        worker_ram_mb=dict(type='int', default=1024),
-        worker_disk_gb=dict(type='int', default=0),
-        extnet_id=dict(type='int',  default=0),
-        description=dict(type='str', default="Created by decort ansible module"),
-        with_lb=dict(type='bool', default=True),
-        verify_ssl=dict(type='bool', required=False, default=True),
-        workflow_callback=dict(type='str', required=False),
-        workflow_context=dict(type='str', required=False),
-    )
-
+            quotas=dict(type='dict', required=False),
+            state=dict(type='str',
+                    default='present',
+                    choices=['absent', 'disabled', 'enabled', 'present','check']),
+            permanent=dict(type='bool', default=False),
+            started=dict(type='bool', default=True),
+            user=dict(type='str',
+                    required=False,
+                    fallback=(env_fallback, ['DECORT_USER'])),
+            name=dict(type='str', required=True),
+            id=dict(type='int', required=False, default=0),
+            getConfig=dict(type='bool',required=False, default=False),
+            rg_id=dict(type='int', default=0),
+            rg_name=dict(type='str',default=""),
+            k8ci_id=dict(type='int', required=True),
+            wg_name=dict(type='str', required=False),
+            master_count=dict(type='int', default=1),
+            master_cpu=dict(type='int', default=2),
+            master_ram_mb=dict(type='int', default=2048),
+            master_disk_gb=dict(type='int', default=10),
+            worker_count=dict(type='int', default=1),
+            worker_cpu=dict(type='int', default=1),
+            worker_ram_mb=dict(type='int', default=1024),
+            worker_disk_gb=dict(type='int', default=10),
+            workers=dict(type='list'),
+            extnet_id=dict(type='int',  default=0),
+            description=dict(type='str', default="Created by decort ansible module"),
+            with_lb=dict(type='bool', default=True),
+            verify_ssl=dict(type='bool', required=False, default=True),
+            workflow_callback=dict(type='str', required=False),
+            workflow_context=dict(type='str', required=False),)
 
 def main():
-    module_parameters = decort_k8s_parameters()
+    module_parameters = decort_k8s.build_parameters()
 
     amodule = AnsibleModule(argument_spec=module_parameters,
                             supports_check_mode=True,
@@ -125,112 +267,74 @@ def main():
                                 ['app_id', 'app_secret'],
                                 ['user', 'password'],
                             ],
+                            required_one_of=[
+                                ['id', 'name'],
+                                ['rg_id','rg_name']
+                            ],
                             )
 
-    decon = DecortController(amodule)
-    k8s_id, k8s_facts = decon.k8s_find(arg_k8s_name=amodule.params['k8s_name'],
-                                    arg_check_state=False)
-    k8s_should_exist = True
-
-    if k8s_id:
-        if k8s_facts['status'] in ["MODELED", "DISABLING", "ENABLING", "DELETING", "DESTROYING", "CREATING",
-                                   "RESTORING"] and amodule.params['state'] != "present":
-            decon.result['failed'] = True
-            decon.result['changed'] = False
-            decon.result['msg'] = ("No change can be done for existing k8s ID {} because of its current "
-                                   "status '{}'").format(k8s_id, k8s_facts['status'])
-        elif k8s_facts['status'] in ["DISABLED", "ENABLED", "CREATED", "DELETED"] and amodule.params['state'] == "absent":
-            if amodule.params['permanent'] is True:
-                decon.k8s_delete(k8s_id, True)
-                k8s_facts['status'] = 'DESTROYED'
-                k8s_should_exist = False
-            else:
-                decon.k8s_delete(k8s_id)
-                k8s_facts['status'] = 'DELETED'
-                k8s_should_exist = True
-        elif k8s_facts['status'] == "ENABLED" and amodule.params['started'] is True:
-            decon.k8s_state(k8s_facts, amodule.params['state'], amodule.params['started'])
-        elif k8s_facts['status'] == amodule.params['state'].upper():
-            decon.k8s_state(k8s_facts, amodule.params['state'])
-        elif k8s_facts['status'] in ["ENABLED", "CREATED"] and amodule.params['state'] == "disabled":
-            decon.k8s_state(k8s_facts, 'disabled')
-        elif k8s_facts['status'] in ["DISABLED", "CREATED"]:
-            if amodule.params['state'] == 'enabled':
-                decon.k8s_state(k8s_facts, 'enabled', amodule.params['started'])
-            elif amodule.params['state'] == "disabled":
-                decon.k8s_state(k8s_facts, 'disabled')
-            k8s_should_exist = True
-        elif k8s_facts['status'] == "DELETED":
-            if amodule.params['state'] in ('enabled', 'present'):
-                decon.k8s_restore(k8s_id)
-                k8s_should_exist = True
-            elif amodule.params['state'] == 'disabled':
-                decon.result['failed'] = True
-                decon.result['changed'] = False
-                decon.result['msg'] = ("Invalid target state '{}' requested for k8s ID {} in the "
-                                       "current status '{}'").format(k8s_id,
-                                                                     amodule.params['state'],
-                                                                     k8s_facts['status'])
-                k8s_should_exist = False
-        elif k8s_facts['status'] == "DESTROYED":
-            if amodule.params['state'] in ('present', 'enabled'):
-                k8s_should_exist = True
+    subj = decort_k8s(amodule)
+
+    if amodule.params['state'] == 'check':
+        subj.result['changed'] = False
+        if subj.k8s_id:
+            # cluster is found - package facts and report success to Ansible
+            subj.result['failed'] = False
+            subj.result['facts'] = subj.package_facts(amodule.check_mode)
+            amodule.exit_json(**subj.result)
+            # we exit the module at this point
+        else:
+            subj.result['failed'] = True
+            subj.result['msg'] = ("Cannot locate K8s cluster name '{}'. "
+                                  "RG ID {}").format(amodule.params['name'],
+                                                     amodule.params['rg_id'],)
+            amodule.fail_json(**subj.result)                          
+
+    if subj.k8s_id:
+        if subj.k8s_info['status'] in ("DELETING","DESTROYNG","CREATING","DESTROYING",
+                                         "ENABLING","DISABLING","RESTORING","MODELED"):
+            subj.error()
+        elif subj.k8s_info['status'] == "DELETED":
+            if amodule.params['state'] in ('disabled', 'enabled', 'present'):
+                subj.k8s_restore(subj.k8s_id)
+                subj.action(amodule.params['state'])
+            if amodule.params['state'] == 'absent':
+                subj.nop()
+        elif subj.k8s_info['techStatus'] in ("STARTED","STOPPED"):
+            if amodule.params['state'] == 'disabled':
+                subj.action(amodule.params['state'])
             elif amodule.params['state'] == 'absent':
-                # nop
-                decon.result['failed'] = False
-                decon.result['changed'] = False
-                decon.result['msg'] = ("No state change required for k8s ID {} because of its "
-                                       "current status '{}'").format(k8s_id,
-                                                                     k8s_facts['status'])
-                k8s_should_exist = False
-            elif amodule.params['state'] == 'disabled':
-                # error
-                decon.result['failed'] = True
-                decon.result['changed'] = False
-                decon.result['msg'] = ("Invalid target state '{}' requested for k8s ID {} in the "
-                                       "current status '{}'").format(k8s_id,
-                                                                     amodule.params['state'],
-                                                                     k8s_facts['status'])
+                subj.destroy()
+            else:
+                subj.action(amodule.params['state'],amodule.params['started'])
+        elif subj.k8s_info['status'] == "DISABLED":
+            if amodule.params['state'] == 'absent':
+                subj.destroy()
+            elif amodule.params['state'] in ('present','enabled'):
+                subj.action(amodule.params['state'],amodule.params['started'])
+            else:
+                subj.nop()
+        elif subj.k8s_info['status'] == "DESTROED":
+            if amodule.params['state'] in ('present','enabled'):
+                subj.create()
+            if amodule.params['state'] == 'absent':    
+                subj.nop()
     else:
-        k8s_should_exist = False
         if amodule.params['state'] == 'absent':
-            decon.result['failed'] = False
-            decon.result['changed'] = False
-            decon.result['msg'] = ("Nothing to do as target state 'absent' was requested for "
-                                   "non-existent k8s name '{}'").format(amodule.params['k8s_name'])
-        elif amodule.params['state'] in ('present', 'enabled'):
-            decon.check_amodule_argument('k8s_name')
-            k8s_id = decon.k8s_provision(amodule.params['k8s_name'],
-                                         amodule.params['wg_name'],
-                                         amodule.params['k8ci_id'],
-                                         amodule.params['rg_id'],
-                                         amodule.params['master_count'],
-                                         amodule.params['master_cpu'],
-                                         amodule.params['master_ram_mb'],
-                                         amodule.params['master_disk_gb'],
-                                         amodule.params['worker_count'],
-                                         amodule.params['worker_cpu'],
-                                         amodule.params['worker_ram_mb'],
-                                         amodule.params['worker_disk_gb'],
-                                         amodule.params['extnet_id'],
-                                         amodule.params['with_lb'],
-                                         amodule.params['description'],
-                                         )
-            k8s_should_exist = True
-        elif amodule.params['state'] == 'disabled':
-            decon.result['failed'] = True
-            decon.result['changed'] = False
-            decon.result['msg'] = ("Invalid target state '{}' requested for non-existent "
-                                   "k8s name '{}' ").format(amodule.params['state'],
-                                                            amodule.params['k8s_name'])
-    if decon.result['failed']:
-        amodule.fail_json(**decon.result)
+            subj.nop()
+        if amodule.params['state'] in ('present','started'):
+            subj.create()
+        elif amodule.params['state'] in ('stopped', 'disabled','enabled'):
+            subj.error()
+            
+    if subj.result['failed']:
+        amodule.fail_json(**subj.result)
     else:
-        if k8s_should_exist:
-            if decon.result['changed']:
-                _, k8s_facts = decon.k8s_find(arg_k8s_id=k8s_id)
-        decon.result['facts'] = decort_k8s_package_facts(k8s_facts, amodule.check_mode)
-        amodule.exit_json(**decon.result)
+        if subj.k8s_should_exist:
+            subj.result['facts'] = subj.package_facts(amodule.check_mode)
+            amodule.exit_json(**subj.result)
+        else:
+            amodule.exit_json(**subj.result)
 
 if __name__ == "__main__":
     main()
diff --git a/library/decort_kvmvm.py b/library/decort_kvmvm.py
index 3b38b07..d2e9af3 100644
--- a/library/decort_kvmvm.py
+++ b/library/decort_kvmvm.py
@@ -192,6 +192,9 @@ options:
         - If I(ssh_key) is not specified, this parameter is ignored and a warning is generated.
         - This parameter is valid at VM creation time only and ignored for any operation on existing VMs.
         required: no
+    user_data:
+        description:
+        - Cloud-init User-Data, exept ssh module
     state:
         description:
         - Specify the desired state of the virtual machine at the exit of the module.
@@ -548,15 +551,18 @@ class decort_kvmvm(DecortController):
         if self.amodule.params['state'] in ('halted', 'poweredoff'):
             start_compute = False
         
-        if self.amodule.params['ssh_key'] and self.amodule.params['ssh_key_user']:
+        if self.amodule.params['ssh_key'] and self.amodule.params['ssh_key_user'] and not self.amodule.params['ci_user_data']:
             cloud_init_params = {'users': [
                 {"name": self.amodule.params['ssh_key_user'],
                     "ssh-authorized-keys": [self.amodule.params['ssh_key']],
                     "shell": '/bin/bash'}
                 ]}
+        elif self.amodule.params['ci_user_data']:
+            cloud_init_params = {}
+            for ci_param in self.amodule.params['ci_user_data']:
+                cloud_init_params.update(ci_param)
         else:
             cloud_init_params = None
-
         # if we get through here, all parameters required to create new Compute instance should be at hand
 
         # NOTE: KVM VM is created in HALTED state and must be explicitly started
@@ -595,6 +601,11 @@ class decort_kvmvm(DecortController):
         # Next manage data disks
         self.compute_data_disks(self.comp_info, self.amodule.params['data_disks'])
 
+        self.compute_affinity(self.comp_info,
+                              self.amodule.params['tag'],
+                              self.amodule.params['aff_rule'],
+                              self.amodule.params['aaff_rule'],
+                              label=self.amodule.params['affinity_label'],)
         # NOTE: see NOTE above regarding libvirt "feature" and new VMs created in HALTED state
         if self.amodule.params['state'] not in ('halted', 'poweredoff'):
             self.compute_powerstate(self.comp_info, 'started')
@@ -641,6 +652,11 @@ class decort_kvmvm(DecortController):
         self.compute_resize(self.comp_info,
                             self.amodule.params['cpu'], self.amodule.params['ram'],
                             wait_for_state_change=arg_wait_cycles)
+        self.compute_affinity(self.comp_info,
+                              self.amodule.params['tag'],
+                              self.amodule.params['aff_rule'],
+                              self.amodule.params['aaff_rule'],
+                              label=self.amodule.params['affinity_label'],)
         return
 
     def package_facts(self, check_mode=False):
@@ -774,6 +790,11 @@ class decort_kvmvm(DecortController):
             rg_name=dict(type='str', default=""),
             ssh_key=dict(type='str', required=False),
             ssh_key_user=dict(type='str', required=False),
+            tag=dict(type='list', required=False),
+            affinity_label=dict(type='str', required=False),
+            aff_rule=dict(type='list', required=False),
+            aaff_rule=dict(type='list', required=False),
+            ci_user_data=dict(type='list', required=False),
             state=dict(type='str',
                        default='present',
                        choices=['absent', 'paused', 'poweredoff', 'halted', 'poweredon', 'present', 'check']),
diff --git a/module_utils/decort_utils.py b/module_utils/decort_utils.py
index 380fcdf..e08c7ba 100644
--- a/module_utils/decort_utils.py
+++ b/module_utils/decort_utils.py
@@ -24,7 +24,7 @@ NOTE: this utility library requires DECORT platform version 3.4.0 or higher.
 It is not compatible with older versions.
 
 Requirements:
-- python >= 2.6
+- python >= 3.8
 - PyJWT Python module
 - requests Python module
 - netaddr Python module
@@ -1188,6 +1188,47 @@ class DecortController(object):
                 return True
 
         return False
+    
+    def compute_affinity(self,comp_dict,tags,aff,aaff,label=""):
+
+        self.result['waypoints'] = "{} -> {}".format(self.result['waypoints'], "compute_affinity")
+
+        api_params = dict(computeId=comp_dict['id'])
+        self.decort_api_call(requests.post, "/restmachine/cloudapi/compute/affinityRulesClear", api_params)
+        self.decort_api_call(requests.post, "/restmachine/cloudapi/compute/antiAffinityRulesClear", api_params)
+        if tags:
+            for tag in tags:
+                api_params = dict(computeId=comp_dict['id'],
+                            key=tag['key'],
+                            value=tag['value'], )
+                self.decort_api_call(requests.post, "/restmachine/cloudapi/compute/tagAdd", api_params)
+        if label:
+            api_params = dict(computeId=comp_dict['id'],
+                          affinityLabel=label,)
+            self.decort_api_call(requests.post, "/restmachine/cloudapi/compute/affinityLabelSet", api_params)
+        if aff:
+            if len(aff[0])>0:
+                for rule in aff:
+                    api_params = dict(computeId=comp_dict['id'],
+                                key=rule['key'],
+                                value=rule['value'], 
+                                topology=rule['topology'],
+                                mode=rule['mode'],
+                                policy=rule['policy'],)
+                    self.decort_api_call(requests.post, "/restmachine/cloudapi/compute/affinityRuleAdd", api_params)
+        if aaff:
+            if len(aaff[0])>0:
+                for rule in aaff:
+                    api_params = dict(computeId=comp_dict['id'],
+                                key=rule['key'],
+                                value=rule['value'], 
+                                topology=rule['topology'],
+                                mode=rule['mode'],
+                                policy=rule['policy'],)
+                    self.decort_api_call(requests.post, "/restmachine/cloudapi/compute/antiAffinityRuleAdd", api_params)     
+        
+        self.result['failed'] = False
+        self.result['changed'] = True
 
     ###################################
     # OS image manipulation methods
@@ -2678,7 +2719,12 @@ class DecortController(object):
 
         return ret_k8s_id, ret_k8s_dict
 
-    def k8s_find(self, arg_k8s_id=0, arg_k8s_name="", arg_check_state=True):
+    ##############################
+    #
+    # K8s management
+    #
+    ##############################
+    def k8s_find(self, k8s_id, k8s_name="",rg_id=0,check_state=True):
         """Returns non zero k8s ID and a dictionary with k8s details on success, 0 and empty dictionary otherwise.
         This method does not fail the run if k8s cannot be located by its name (arg_k8s_name), because this could be
         an indicator of the requested k8s never existed before.
@@ -2700,7 +2746,7 @@ class DecortController(object):
         # Transient state (ending with ING) are invalid from k8s manipulation viewpoint
         #
 
-        K8S_INVALID_STATES = ["MODELED"]
+        K8S_INVALID_STATES = ["MODELED","DESTROYED","DESTROYING"]
 
         self.result['waypoints'] = "{} -> {}".format(self.result['waypoints'], "k8s_find")
 
@@ -2708,31 +2754,22 @@ class DecortController(object):
         api_params = dict(includedeleted=True)
         ret_k8s_dict = None
 
-        if arg_k8s_id > 0:
-            ret_k8s_id, ret_k8s_dict = self._k8s_get_by_id(arg_k8s_id)
+        if k8s_id:
+            ret_k8s_id, ret_k8s_dict = self._k8s_get_by_id(k8s_id)
             if not ret_k8s_id:
                 self.result['failed'] = True
-                self.result['msg'] = "k8s_find(): cannot find k8s by ID {}.".format(arg_k8s_id)
+                self.result['msg'] = "k8s_find(): cannot find k8s cluster by ID {}.".format(k8s_id)
                 self.amodule.fail_json(**self.result)
-        elif arg_k8s_name != "":
+        else:
             api_resp = self.decort_api_call(requests.post, "/restmachine/cloudapi/k8s/list", api_params)
             if api_resp.status_code == 200:
-                account_specs = json.loads(api_resp.content.decode('utf8'))
-                for k8s_item in account_specs:
-                    got_id, got_specs = self._k8s_get_by_id(k8s_item['id'])
-                    if got_id and got_specs['name'] == arg_k8s_name:
-                        # name matches
-                        if not arg_check_state or got_specs['status'] not in K8S_INVALID_STATES:
-                            ret_k8s_id = got_id
-                            ret_k8s_dict = got_specs
-                            break
-            # Note: we do not fail the run if k8s cannot be located by its name, because it could be a new k8s
-            # that never existed before. In this case ret_k8s_id=0 and empty ret_k8s_dict will be returned.
-        else:
-            # Both arg_k8s_id and arg_k8s_name are empty - there is no way to locate k8s in this case
-            self.result['failed'] = True
-            self.result['msg'] = "k8s_find(): either non-zero ID or a non-empty name must be specified."
-            self.amodule.fail_json(**self.result)
+                k8s_list = json.loads(api_resp.content.decode('utf8'))
+        for k8s_item in k8s_list:
+            if k8s_item['name'] == k8s_name and k8s_item['rgId'] == rg_id:
+                if not check_state or k8s_item['status'] not in K8S_INVALID_STATES:
+                    ret_k8s_id = k8s_item['id']
+                    _, ret_k8s_dict = self._k8s_get_by_id(ret_k8s_id)
+
 
         return ret_k8s_id, ret_k8s_dict
 
@@ -2753,7 +2790,7 @@ class DecortController(object):
                                      "DESTROYED", "CREATING",
                                      "RESTORING"]
         VALID_TARGET_STATES = ["ENABLED", "DISABLED"]
-
+   
         if arg_k8s_dict['status'] in NOP_STATES_FOR_K8S_CHANGE:
             self.result['failed'] = False
             self.result['msg'] = ("k8s_state(): no state change possible for k8s ID {} "
@@ -2772,7 +2809,8 @@ class DecortController(object):
                                   "'{}' was requested.").format(arg_k8s_dict['id'], arg_k8s_dict['name'],
                                                                 arg_desired_state)
             return
-
+        if arg_desired_state == 'present':
+            arg_desired_state = 'enabled'
         k8s_state_api = ""  # This string will also be used as a flag to indicate that API call is necessary
         api_params = dict(k8sId=arg_k8s_dict['id'])
         expected_state = ""
@@ -2802,23 +2840,27 @@ class DecortController(object):
                                   "state '{}' to desired state '{}'.").format(arg_k8s_dict['id'],
                                                                               arg_k8s_dict['status'],
                                                                               arg_desired_state)
+        
         return
+
     def k8s_delete(self, k8s_id, permanently=False):
         self.result['waypoints'] = "{} -> {}".format(self.result['waypoints'], "k8s_delete")
 
         if self.amodule.check_mode:
             self.result['failed'] = False
-            self.result['msg'] = "k8s_delete() in check mode: delete Compute ID {} was requested.".format(k8s_id)
+            self.result['msg'] = "k8s_delete() in check mode: delete K8s cluster ID {} was requested.".format(k8s_id)
             return
 
         api_params = dict(k8sId=k8s_id,
-                          permanently=permanently,
+                          permanently=False,
                           )
         self.decort_api_call(requests.post, "/restmachine/cloudapi/k8s/delete", api_params)
         # On success the above call will return here. On error it will abort execution by calling fail_json.
         self.result['failed'] = False
+        self.result['msg'] = "k8s_delete() K8s cluster ID {} was deleted.".format(k8s_id)
         self.result['changed'] = True
         return
+
     def k8s_restore(self, k8s_id ):
         """Restores a deleted k8s cluster identified by ID.
 
@@ -2838,6 +2880,16 @@ class DecortController(object):
         self.result['failed'] = False
         self.result['changed'] = True
         return
+    
+    def k8s_enable(self,k8s_id):
+        
+        self.result['waypoints'] = "{} -> {}".format(self.result['waypoints'], "k8s_enable")
+        api_params = dict(k8sId=k8s_id)
+        api_resp = self.decort_api_call(requests.post, "/restmachine/cloudapi/k8s/enable", api_params)
+        self.result['failed'] = False
+        self.result['changed'] = True
+        return
+
     def k8s_provision(self, k8s_name,
                       wg_name, k8ci_id,
                       rg_id, master_count,
@@ -2902,3 +2954,104 @@ class DecortController(object):
         else:
             self.result['failed'] = True
         return
+
+    def k8s_workers_modify(self,arg_k8swg,arg_modwg):
+        
+        self.result['waypoints'] = "{} -> {}".format(self.result['waypoints'], "k8s_workers_modify")
+        
+        
+        if self.k8s_info['techStatus'] != "STARTED":
+            self.result['changed'] = False
+            self.result['msg'] = ("k8s_workers_modify(): Can't modify with TechStatus other then STARTED")
+            return
+        
+        wg_del_list = []
+        wg_add_list = []
+        wg_modadd_list = []
+        wg_moddel_list = []
+        wg_outer = [rec['name'] for rec in arg_modwg]
+        wg_inner = [rec['name'] for rec in arg_k8swg['k8sGroups']['workers']]
+
+        for rec in arg_k8swg['k8sGroups']['workers']:
+            if rec['name'] not in wg_outer:
+                wg_del_list.append(rec['id'])
+        for rec in arg_modwg:
+            if rec['name'] not in wg_inner:
+                wg_add_list.append(rec)
+        
+        for rec_inn in arg_k8swg['k8sGroups']['workers']:
+            for rec_out in arg_modwg:
+                if rec_inn['num'] != rec_out['num']:
+                    count = rec_inn['num']-rec_out['num']
+                    cmp_list = []
+                    if count > 0:
+                        for cmp in rec_inn['detailedInfo'][:count]:
+                            cmp_list.append(cmp['id'])
+                        wg_moddel_list.append({rec_inn['id']:cmp_list})
+                    if count < 0:
+                        wg_modadd_list.append({rec_inn['id']:abs(count)})
+
+        if wg_del_list:
+            for wgid in wg_del_list: 
+                api_params = dict(k8sId=self.k8s_id,workersGroupId=wgid)
+                api_resp = self.decort_api_call(requests.post, "/restmachine/cloudapi/k8s/workersGroupDelete", api_params)
+                self.result['changed'] = True    
+        if wg_add_list:
+            for wg in wg_add_list:
+                api_params = dict(k8sId=self.k8s_id,
+                                  name=wg['name'],
+                                  workerNum=wg['num'],
+                                  workerCpu=wg['cpu'],
+                                  workerRam=wg['ram'],
+                                  workerDisk=wg['disk'],
+                                )
+                api_resp = self.decort_api_call(requests.post, "/restmachine/cloudapi/k8s/workersGroupAdd", api_params)
+                self.result['changed'] = True
+        if wg_modadd_list:
+            for wg in wg_modadd_list:
+                for key in wg:
+                    api_params = dict(k8sId=self.k8s_id,workersGroupId=key,num=wg[key])
+                    api_resp = self.decort_api_call(requests.post, "/restmachine/cloudapi/k8s/workerAdd", api_params)
+                    self.result['changed'] = True
+        if wg_moddel_list:
+            for wg in wg_moddel_list:
+                for key in wg:
+                    for cmpid in wg[key]:
+                        api_params = dict(k8sId=self.k8s_id,workersGroupId=key,workerId=cmpid)
+                        api_resp = self.decort_api_call(requests.post, "/restmachine/cloudapi/k8s/deleteWorkerFromGroup", api_params)
+                        self.result['changed'] = True
+        self.result['failed'] = False
+        return
+    
+    def k8s_k8ci_find(self,arg_k8ci_id):
+
+        self.result['waypoints'] = "{} -> {}".format(self.result['waypoints'], "k8s_k8ci_find")
+        
+        api_params = dict(includeDisabled=False)
+
+        api_resp = self.decort_api_call(requests.post, "/restmachine/cloudapi/k8ci/list", api_params)
+        
+        if api_resp.status_code == 200:
+            ret_k8ci_list = json.loads(api_resp.content.decode('utf8'))
+            for k8ci_item in ret_k8ci_list:
+                if k8ci_item['id'] == arg_k8ci_id:
+                    break
+                else:
+                    self.result['failed'] = True
+                    self.result['msg'] = "k8s_k8ci_find(): cannot find ID."
+                    self.amodule.fail_json(**self.result)  
+        else:
+            self.result['failed'] = True
+            self.result['msg'] = ("Failed to get k8ci list HTTP code {}.").format(api_resp.status_code)
+            self.amodule.fail_json(**self.result)
+        return arg_k8ci_id
+    
+    def k8s_getConfig(self):
+        
+        self.result['waypoints'] = "{} -> {}".format(self.result['waypoints'], "k8s_getConfig")
+        
+        api_params = dict(k8sId=self.k8s_id)
+        api_resp = self.decort_api_call(requests.post, "/restmachine/cloudapi/k8s/getConfig", api_params)
+        ret_conf = api_resp.content.decode('utf8')
+        return ret_conf
+