feat: Introduce an Ansible common role for base system configuration, including packages, users, and Netplan networking, alongside Semaphore playbooks for system bootstrapping and Proxmox management.

ansible/roles/common/templates/netplan_config.yaml.j2

@@ -0,0 +1,15 @@
+network:
+  version: 2
+  ethernets:
+    {{ common_interface_name }}:
+      dhcp4: no
+      addresses:
+        - {{ common_ip_address }}
+{% if common_gateway %}
+      gateway4: {{ common_gateway }}
+{% endif %}
+      nameservers:
+        addresses:
+{% for server in common_dns_servers %}
+          - {{ server }}
+{% endfor %}