Modified how adding LB for the Kube API is handled (AWS)

Until now it was not possible to add an API Loadbalancer
without an static IP Address. But certain Loadbalancers
like AWS Elastic Loadbalanacer dontt have an fixed IP address.
With this commit it is possible to add these kind of Loadbalancers
to the Kargo deployment.

roles/kubernetes/preinstall/tasks/etchosts.yml

@@ -17,7 +17,7 @@
     line: "{{ loadbalancer_apiserver.address }} {{ apiserver_loadbalancer_domain_name| default('lb-apiserver.kubernetes.local') }}"
     state: present
     backup: yes
-  when: loadbalancer_apiserver is defined and apiserver_loadbalancer_domain_name is defined
+  when: loadbalancer_apiserver.address is defined and apiserver_loadbalancer_domain_name is defined
 
 - name: Hosts | localhost ipv4 in hosts file
   lineinfile:

roles/kubernetes/preinstall/tasks/set_facts.yml

@@ -22,7 +22,7 @@
     kube_apiserver_endpoint: |-
       {% if not is_kube_master and loadbalancer_apiserver_localhost|default(false) -%}
            https://localhost:{{ nginx_kube_apiserver_port|default(kube_apiserver_port) }}
-      {%- elif is_kube_master and loadbalancer_apiserver is not defined -%}
+      {%- elif is_kube_master -%}
            http://127.0.0.1:{{ kube_apiserver_insecure_port }}
       {%- else -%}
       {%-   if loadbalancer_apiserver is defined and loadbalancer_apiserver.port is defined -%}