Add support for LB DNS PTRs (#103)

* Add support for Load Balancer DNS PTRs 

* Add changelogs

tests/integration/targets/hcloud_rdns/defaults/main.yml

@@ -4,3 +4,4 @@
 hcloud_prefix: "tests"
 hcloud_server_name: "{{hcloud_prefix}}"
 hcloud_floating_ip_name: "{{hcloud_prefix}}"
+hcloud_load_balancer_name: "{{hcloud_prefix}}"

tests/integration/targets/hcloud_rdns/tasks/main.yml

@@ -26,6 +26,18 @@
     that:
       - floatingIP is success
 
+- name: setup Load Balancer
+  hcloud_load_balancer:
+    name: "{{ hcloud_load_balancer_name}}"
+    load_balancer_type: lb11
+    network_zone: eu-central
+    state: present
+  register: load_balancer
+- name: verify setup
+  assert:
+    that:
+    - load_balancer is success
+
 - name: test missing required parameter
   hcloud_rdns:
     state: present
@@ -130,6 +142,21 @@
     - rdns.hcloud_rdns.ip_address == "{{ floatingIP.hcloud_floating_ip.ip}}"
     - rdns.hcloud_rdns.dns_ptr == "example.com"
 
+- name: test create rdns with load balancer
+  hcloud_rdns:
+    load_balancer: "{{ hcloud_load_balancer_name }}"
+    ip_address: "{{ load_balancer.hcloud_load_balancer.ipv4_address }}"
+    dns_ptr: "example.com"
+    state: present
+  register: rdns
+- name: verify create rdns with load balancer
+  assert:
+    that:
+    - rdns is changed
+    - rdns.hcloud_rdns.load_balancer == "{{ hcloud_load_balancer_name }}"
+    - rdns.hcloud_rdns.ip_address == "{{ load_balancer.hcloud_load_balancer.ipv4_address }}"
+    - rdns.hcloud_rdns.dns_ptr == "example.com"
+
 - name: cleanup
   hcloud_server:
     name: "{{ hcloud_server_name }}"
@@ -149,3 +176,13 @@
   assert:
     that:
       - result is success
+
+- name: cleanup
+  hcloud_load_balancer:
+    name: "{{ hcloud_load_balancer_name }}"
+    state: absent
+  register: result
+- name: verify cleanup
+  assert:
+    that:
+      - result is success