Add additional no proxy parameter for more customization

roles/kubespray-defaults/defaults/main.yaml

@@ -274,6 +274,9 @@ no_proxy: >-
   {%-   endif -%}
   {{ item }},{{ item }}.{{ dns_domain }},
   {%- endfor -%}
+  {%- if additional_no_proxy is defined -%}
+  {{ additional_no_proxy }},
+  {%- endif -%}
   127.0.0.1,localhost
   {%- endif %}