cloudstack: new module cs_vpn_gateway (#23954)

* cloudstack: new module cs_vpn_gateway
* add integration tests for cs_vpn_gateway

test/integration/targets/cs_vpn_gateway/tasks/main.yml

@@ -0,0 +1,82 @@
+---
+- name: setup vpc
+  cs_vpc:
+    name: "{{ cs_resource_prefix }}_vpc"
+    display_text: "{{ cs_resource_prefix }}_display_text"
+    cidr: 10.10.0.0/16
+    zone: "{{ cs_common_zone_adv }}"
+  register: vpc
+- name: verify setup vpc
+  assert:
+    that:
+    - vpc|success
+
+- name: setup vpn gateway absent
+  cs_vpn_gateway:
+    vpc: "{{ cs_resource_prefix }}_vpc"
+    zone: "{{ cs_common_zone_adv }}"
+    state: absent
+  register: vpn_gateway
+- name: verify setup vpn gateway absent
+  assert:
+    that:
+    - vpn_gateway|success
+
+- name: test fail missing param vpc for vpn gateway
+  cs_vpn_gateway:
+  ignore_errors: true
+  register: vpn_gateway
+- name: verify test fail missing param vpc for vpn gateway
+  assert:
+    that:
+    - vpn_gateway|failed
+    - "vpn_gateway.msg.startswith('missing required arguments: ')"
+
+- name: test create vpn gateway
+  cs_vpn_gateway:
+    vpc: "{{ cs_resource_prefix }}_vpc"
+    zone: "{{ cs_common_zone_adv }}"
+  register: vpn_gateway
+- name: verify test create vpn gateway
+  assert:
+    that:
+    - vpn_gateway|success
+    - vpn_gateway|changed
+    - vpn_gateway.vpc == "{{ cs_resource_prefix }}_vpc"
+
+- name: test create vpn gateway idempotence
+  cs_vpn_gateway:
+    vpc: "{{ cs_resource_prefix }}_vpc"
+    zone: "{{ cs_common_zone_adv }}"
+  register: vpn_gateway
+- name: verify test create vpn gateway idempotence
+  assert:
+    that:
+    - vpn_gateway|success
+    - not vpn_gateway|changed
+    - vpn_gateway.vpc == "{{ cs_resource_prefix }}_vpc"
+
+- name: test remove vpn gateway
+  cs_vpn_gateway:
+    vpc: "{{ cs_resource_prefix }}_vpc"
+    zone: "{{ cs_common_zone_adv }}"
+    state: absent
+  register: vpn_gateway
+- name: verify test remove vpn gateway
+  assert:
+    that:
+    - vpn_gateway|success
+    - vpn_gateway|changed
+    - vpn_gateway.vpc == "{{ cs_resource_prefix }}_vpc"
+
+- name: test remove vpn gateway idempotence
+  cs_vpn_gateway:
+    vpc: "{{ cs_resource_prefix }}_vpc"
+    zone: "{{ cs_common_zone_adv }}"
+    state: absent
+  register: vpn_gateway
+- name: verify test remove vpn gateway idempotence
+  assert:
+    that:
+    - vpn_gateway|success
+    - not vpn_gateway|changed