diff --git a/ansible.cfg b/ansible.cfg
new file mode 100644
index 0000000..8647c5a
--- /dev/null
+++ b/ansible.cfg
@@ -0,0 +1,8 @@
+[defaults]
+any_errors_fatal = True
+deprecation_warnings = True
+display_skipped_hosts = False
+host_key_checking = False
+nocows = 1
+remote_user = root
+retry_files_enabled = False
diff --git a/group_vars/k8s b/group_vars/k8s
index b23c14f..b02bb36 100644
--- a/group_vars/k8s
+++ b/group_vars/k8s
@@ -1,6 +1,5 @@
 ---
-ansible_user: deploy
-ansible_become: true
+ansible_user: root
 ansible_port: 22
 
 harden_linux_sshd_settings_user:
diff --git a/scripts/scw_inventory.py b/scripts/scw_inventory.py
index 151e38a..7ee9fd8 100755
--- a/scripts/scw_inventory.py
+++ b/scripts/scw_inventory.py
@@ -52,11 +52,17 @@ class SCWInventory(object):
             [i['name'], i['public_ip'], i['tags'], i['private_ip']] for i in result_par1['servers'] + result_ams1['servers']
         ]
         for host, ip_info, tags, private_ip in self.inventory:
-            self.response['_meta']['hostvars'][host] = {
-                'ansible_host': ip_info['address'] if ip_info else private_ip,
-                'public_ip': ip_info['address'] if ip_info else None,
-                'private_ip': private_ip
+            host_vars = {
+                'private_ip': private_ip,
+                'ansible_python_interpreter': '/usr/bin/python3'
             }
+            if ip_info:
+                host_vars['ansible_host'] = ip_info['address']
+                host_vars['public_ip'] = ip_info['address']
+            else:
+                host_vars['ansible_host'] = private_ip
+
+            self.response['_meta']['hostvars'][host] = host_vars
             if tags:
                 for tag in tags:
                     self._add_to_response(
@@ -64,6 +70,10 @@ class SCWInventory(object):
                         host
                     )
 
+        for host, variables in self.response['_meta']['hostvars'].items():
+            if host != 'proxy1':
+                variables['ansible_ssh_common_args'] = '-o ProxyCommand="ssh -W %h:%p -q root@' + self.response['_meta']['hostvars']['proxy1']['public_ip'] + '"'
+
     def _add_to_response(self, group, hostname):
         '''
         add a host to a group within the response