Adjusted inventory file with the real IP addresses. I do not see the reason to skip local IPs.

inventory/example_hosts.ini

@@ -1,30 +0,0 @@
-[all:vars]
-ansible_user = mbuz
-ansible_ssh_private_key_file = /home/mbuz/.ssh/id_rsa
-
-[proxmox]
-proxmox-host ansible_host=x.x.x.x
-
-[docker]
-docker-apps ansible_host=x.x.x.x
-docker-cloud ansible_host=x.x.x.x
-
-#[truenas]
-#truenas ansible_host=x.x.x.x
-
-[raspberry_pi]
-raspberry-pi ansible_host=x.x.x.x
-
-[lxc]
-ansible ansible_host=x.x.x.x
-zabbix-proxy ansible_host=x.x.x.x
-localhost ansible_connection=local # for testing playbooks on the control node
-
-[proxmox_backup]
-proxmox-backup ansible_host=x.x.x.x
-
-# This is a group of groups. It includes all hosts in the 'docker' and 'raspberry_pi' groups.
-[ubuntu:children]
-docker
-raspberry_pi
-lxc

inventory/hosts.ini

@@ -0,0 +1,30 @@
+[all:vars]
+ansible_user = mbuz
+ansible_ssh_private_key_file = /home/mbuz/.ssh/id_rsa
+
+[proxmox]
+proxmox-host ansible_host=10.0.0.1
+
+[docker]
+docker-apps ansible_host=10.0.0.101
+docker-cloud ansible_host=10.0.0.102
+
+#[truenas]
+#truenas ansible_host=10.0.0.200
+
+[raspberry_pi]
+raspberry-pi ansible_host=10.0.0.5
+
+[lxc]
+ansible ansible_host=10.0.0.111
+zabbix-proxy ansible_host=10.0.0.110 
+pi-hole ansible_host=10.0.0.104
+
+[proxmox_backup]
+proxmox-backup ansible_host=10.0.0.201
+
+# This is a group of groups. It includes all hosts in the 'docker' and 'raspberry_pi' groups.
+[ubuntu:children]
+docker
+raspberry_pi
+lxc