[contrib] azure_rm.py add mechanism to force use of private ip as ansible_host (#36109)

Signed-off-by: Sylvain Rabot <s.rabot@lectra.com>

contrib/inventory/azure_rm.py

@@ -239,7 +239,8 @@ AZURE_CONFIG_SETTINGS = dict(
     group_by_resource_group='AZURE_GROUP_BY_RESOURCE_GROUP',
     group_by_location='AZURE_GROUP_BY_LOCATION',
     group_by_security_group='AZURE_GROUP_BY_SECURITY_GROUP',
-    group_by_tag='AZURE_GROUP_BY_TAG'
+    group_by_tag='AZURE_GROUP_BY_TAG',
+    use_private_ip='AZURE_USE_PRIVATE_IP'
 )
 
 AZURE_MIN_VERSION = "2.0.0"
@@ -474,6 +475,7 @@ class AzureInventory(object):
         self.group_by_security_group = True
         self.group_by_tag = True
         self.include_powerstate = True
+        self.use_private_ip = False
 
         self._inventory = dict(
             _meta=dict(
@@ -649,12 +651,15 @@ class AzureInventory(object):
                     for ip_config in network_interface.ip_configurations:
                         host_vars['private_ip'] = ip_config.private_ip_address
                         host_vars['private_ip_alloc_method'] = ip_config.private_ip_allocation_method
+                        if self.use_private_ip:
+                            host_vars['ansible_host'] = ip_config.private_ip_address
                         if ip_config.public_ip_address:
                             public_ip_reference = self._parse_ref_id(ip_config.public_ip_address.id)
                             public_ip_address = self._network_client.public_ip_addresses.get(
                                 public_ip_reference['resourceGroups'],
                                 public_ip_reference['publicIPAddresses'])
-                            host_vars['ansible_host'] = public_ip_address.ip_address
+                            if not self.use_private_ip:
+                                host_vars['ansible_host'] = public_ip_address.ip_address
                             host_vars['public_ip'] = public_ip_address.ip_address
                             host_vars['public_ip_name'] = public_ip_address.name
                             host_vars['public_ip_alloc_method'] = public_ip_address.public_ip_allocation_method