VMware: New module vmware_vm_host_drs_rule (#50651)

* Added new vmware module for creating DRS VM-HOST rules Host groups in a given cluster
* Fixing punctuation in lib/ansible/modules/cloud/vmware/vmware_vm_host_drs_rule.py
* Added better Docstring
* Better messaging and documentation. Removed unused lib
* Added operation to determine create or update msg
* Fixed class params to only take module. This is less error prone
* Bugfix, undefined names

test/integration/targets/vmware_vm_host_drs_rule/aliases

@@ -0,0 +1,2 @@
+cloud/vcenter
+unsupported

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

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+# Test code for the vmware_vm_vm_drs_rule module.
+# Copyright: (c) 2017, Karsten Kaj Jakobsen <kj@patientsky.com>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+# TODO: vcsim does not support manage DRS rule
+
+- name: Store the vcenter container ip
+  set_fact:
+    vcsim: "{{ lookup('env', 'vcenter_host') }}"
+- debug: var=vcsim
+
+- name: Wait for flask server
+  wait_for:
+    host: "{{ vcsim }}"
+    port: 5000
+    state: started
+
+- name: Kill vcsim
+  uri:
+    url: http://{{ vcsim }}:5000/killall
+
+- name: Start vcsim
+  uri:
+    url: http://{{ vcsim }}:5000/spawn?datacenter=2&cluster=1&folder=0&ds=2&pool=2
+  register: vcsim_instance
+
+- name: Wait for vcsim server
+  wait_for:
+    host: "{{ vcsim }}"
+    port: 443
+    state: started
+
+- debug: var=vcsim_instance
+
+# TODO: create host/vm group when vcsim supports this
+
+- name: Create mandatory DRS Affinity rule for VM/Host
+  vmware_vm_host_drs_rule:
+    validate_certs: False
+    hostname: "{{ vcsim }}"
+    username: "{{ vcsim_instance['json']['username'] }}"
+    password: "{{ vcsim_instance['json']['password'] }}"
+    drs_rule_name: drs_rule_host_aff_0001
+    vm_group_name: DC0_C0_VM_GR1
+    host_group_name: DC0_C0_HOST_GR1
+    cluster_name: DC0_C0
+    enabled: True
+    affinity_rule: True
+    mandatory: True
+  register: drs_rule_host_0001_results
+
+- debug: var=drs_rule_host_0001_results
+
+- assert:
+    that:
+        - "{{ drs_rule_host_0001_results.changed }}"
+
+# TODO: create host/vm group when vcsim supports this
+
+- name: Create non-mandatory DRS Anti-Affinity rule for VM/Host
+  vmware_vm_host_drs_rule:
+    validate_certs: False
+    hostname: "{{ vcsim }}"
+    username: "{{ vcsim_instance['json']['username'] }}"
+    password: "{{ vcsim_instance['json']['password'] }}"
+    drs_rule_name: drs_rule_host_aff_0001
+    vm_group_name: DC0_C0_VM_GR1
+    host_group_name: DC0_C0_HOST_GR2
+    cluster_name: DC0_C0
+    enabled: True
+    affinity_rule: False
+    mandatory: False
+  register: drs_rule_host_0002_results
+
+- debug: var=drs_rule_host_0002_results
+
+- assert:
+    that:
+        - "{{ drs_rule_host_0001_results.changed }}"