feat(kubernetes): add initial setup for ArgoCD, Cert-Manager, MetalLB, and Traefik

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>

roles/k3s_loadbalancer/vars/main.yml

@@ -1,7 +1,3 @@
 k3s_loadbalancer_nginx_config_path: "/etc/nginx/nginx.conf"
 
-k3s_loadbalancer_netcup_api_key: "{{ netcup_api_key }}"
-k3s_loadbalancer_netcup_api_password: "{{ netcup_api_password }}"
-k3s_loadbalancer_netcup_customer_id: "{{ netcup_customer_id }}"
-
 domain: "{{ internal_domain }}"