Dynamically add host record to next available ip with an exclusion list

plugins/module_utils/api.py

@@ -439,6 +439,8 @@ def run(self, ib_obj_type, ib_spec):
 
         # Checks if nios_next_ip param is passed in ipv4addrs/ipv4addr args
         proposed_object = self.check_if_nios_next_ip_exists(proposed_object)
+        # Checks if a wapi function call is the payload of ipv4addrs/ipv4addr args
+        proposed_object = self.check_if_ipv4addr_object_function_exists(proposed_object)
 
         if state == 'present':
             if ref is None:
@@ -548,6 +550,23 @@ def check_if_nios_next_ip_exists(self, proposed_object):
 
         return proposed_object
 
+    def check_if_ipv4addr_object_function_exists(self, proposed_object):
+        ''' Check if _object_function argument is passed in ipaddr
+            while creating host record, if yes then format proposed object ipv4addrs
+            to create hostrecord with next available ip in one call to avoid any race condition
+            This format support the exclude parameters unlike nextavailableip
+            It also supports DHCP ranges, dynamic selection of ranges and networks '''
+
+        if 'ipv4addrs' in proposed_object:
+            for ipv4addr_payload in proposed_object['ipv4addrs']:
+                if '_object_function' in ipv4addr_payload['ipv4addr']:
+                    ipv4addr_payload['ipv4addr'] = check_type_dict(ipv4addr_payload['ipv4addr'])
+        elif 'ipv4addr' in proposed_object:
+            if '_object_function' in proposed_object['ipv4addr']:
+                proposed_object['ipv4addr'] = check_type_dict(proposed_object['ipv4addr'])
+
+        return proposed_object
+
     def check_for_new_ipv4addr(self, proposed_object):
         ''' Checks if new_ipv4addr parameter is passed in the argument
             while updating the record with new ipv4addr with static allocation'''
@@ -592,6 +611,8 @@ def check_next_ip_status(self, obj_filter):
         if 'ipv4addr' in obj_filter:
             if 'nios_next_ip' in obj_filter['ipv4addr']:
                 return True
+            if '_object_function' in obj_filter['ipv4addr'] and check_type_dict(obj_filter['ipv4addr'])['_object_function'] == 'next_available_ip':
+                return True
         return False
 
     def issubset(self, item, objects):

plugins/modules/nios_host_record.py

@@ -59,7 +59,9 @@
         description:
           - Configures the IPv4 address for the host record. Users can dynamically
             allocate ipv4 address to host record by passing dictionary containing,
-            I(nios_next_ip) and I(CIDR network range). If user wants to add or
+            I(nios_next_ip) and I(CIDR network range). It supports _object_function
+            calls to dynamic select an ipv4address from a network/dhcp-range and
+            exclude a list of IPs from the selection. If user wants to add or
             remove the ipv4 address from existing record, I(add/remove)
             params need to be used. See examples.
         type: str
@@ -258,6 +260,29 @@
       password: admin
   connection: local
 
+- name: >
+    Dynamically add host record to next available ip in
+    a network and excluding a list of IPs
+    see https://ipam.illinois.edu/wapidoc/objects/record.host_ipv4addr.html
+  infoblox.nios_modules.nios_host_record:
+    name: host.ansible.com
+    ipv4:
+      - address:
+        _object_function: next_available_ip
+        _parameters:
+          exclude: ['192.168.10.1', '192.168.10.2', '192.168.10.3'],
+        _result_fields: ips
+        _object: network
+        _object_parameters:
+          network: 192.168.10.0/24
+    comment: this is a test comment
+    state: present
+    provider:
+      host: "{{ inventory_hostname_short }}"
+      username: admin
+      password: admin
+  connection: local
+
 - name: Add ip to host record
   infoblox.nios_modules.nios_host_record:
     name: host.ansible.com