VMware datacenter module shouldn't hold pyvmomi context in Ansible module object (#1568)

* VMware datacenter module rewritten to don't hold pyvmomi context and objects in Ansible module object

fixed exceptions handling

added datacenter destroy result, moved checks

changed wrong value

wrong value again... need some sleep

* check_mode fixes

* state defaults to present, default changed to true

* module check fixes

lib/ansible/modules/extras/cloud/vmware/vmware_datacenter.py

@@ -25,9 +25,9 @@ short_description: Manage VMware vSphere Datacenters
 description:
     - Manage VMware vSphere Datacenters
 version_added: 2.0
-author: "Joseph Callen (@jcpowermac)"
+author: "Joseph Callen (@jcpowermac), Kamil Szczygiel (@kamsz)"
 notes:
-    - Tested on vSphere 5.5
+    - Tested on vSphere 6.0
 requirements:
     - "python >= 2.6"
     - PyVmomi
@@ -54,7 +54,7 @@ options:
         description:
             - If the datacenter should be present or absent
         choices: ['present', 'absent']
-        required: True
+        default: present
 extends_documentation_fragment: vmware.documentation
 '''
 
@@ -64,7 +64,7 @@ EXAMPLES = '''
       local_action: >
         vmware_datacenter
         hostname="{{ ansible_ssh_host }}" username=root password=vmware
-        datacenter_name="datacenter"
+        datacenter_name="datacenter" state=present
 '''
 
 try:
@@ -74,18 +74,28 @@ except ImportError:
     HAS_PYVMOMI = False
 
 
-def state_create_datacenter(module):
-    datacenter_name = module.params['datacenter_name']
-    content = module.params['content']
-    changed = True
-    datacenter = None
+def get_datacenter(context, module):
+    try:
+        datacenter_name = module.params.get('datacenter_name')
+        datacenter = find_datacenter_by_name(context, datacenter_name)
+        return datacenter
+    except vmodl.RuntimeFault as runtime_fault:
+        module.fail_json(msg=runtime_fault.msg)
+    except vmodl.MethodFault as method_fault:
+        module.fail_json(msg=method_fault.msg)
+
 
-    folder = content.rootFolder
+def create_datacenter(context, module):
+    datacenter_name = module.params.get('datacenter_name')
+    folder = context.rootFolder
 
     try:
-        if not module.check_mode:
-            datacenter = folder.CreateDatacenter(name=datacenter_name)
-        module.exit_json(changed=changed, result=str(datacenter))
+        datacenter = get_datacenter(context, module)
+        if not datacenter:
+            changed = True
+            if not module.check_mode:
+                folder.CreateDatacenter(name=datacenter_name)
+        module.exit_json(changed=changed)
     except vim.fault.DuplicateName:
         module.fail_json(msg="A datacenter with the name %s already exists" % datacenter_name)
     except vim.fault.InvalidName:
@@ -99,34 +109,16 @@ def state_create_datacenter(module):
         module.fail_json(msg=method_fault.msg)
 
 
-def check_datacenter_state(module):
-    datacenter_name = module.params['datacenter_name']
-
-    try:
-        content = connect_to_api(module)
-        datacenter = find_datacenter_by_name(content, datacenter_name)
-        module.params['content'] = content
-
-        if datacenter is None:
-            return 'absent'
-        else:
-            module.params['datacenter'] = datacenter
-            return 'present'
-    except vmodl.RuntimeFault as runtime_fault:
-        module.fail_json(msg=runtime_fault.msg)
-    except vmodl.MethodFault as method_fault:
-        module.fail_json(msg=method_fault.msg)
-
-
-def state_destroy_datacenter(module):
-    datacenter = module.params['datacenter']
-    changed = True
+def destroy_datacenter(context, module):
     result = None
 
     try:
-        if not module.check_mode:
-            task = datacenter.Destroy_Task()
-            changed, result = wait_for_task(task)
+        datacenter = get_datacenter(context, module)
+        if datacenter:
+            changed = True
+            if not module.check_mode:
+                task = datacenter.Destroy_Task()
+                changed, result = wait_for_task(task)
         module.exit_json(changed=changed, result=result)
     except vim.fault.VimFault as vim_fault:
         module.fail_json(msg=vim_fault.msg)
@@ -136,39 +128,28 @@ def state_destroy_datacenter(module):
         module.fail_json(msg=method_fault.msg)
 
 
-def state_exit_unchanged(module):
-    module.exit_json(changed=False)
-
-
 def main():
 
     argument_spec = vmware_argument_spec()
     argument_spec.update(
         dict(
-                datacenter_name=dict(required=True, type='str'),
-                state=dict(required=True, choices=['present', 'absent'], type='str'),
-                )
+            datacenter_name=dict(required=True, type='str'),
+            state=dict(default='present', choices=['present', 'absent'], type='str')
         )
+    )
     module = AnsibleModule(argument_spec=argument_spec, supports_check_mode=True)
 
     if not HAS_PYVMOMI:
         module.fail_json(msg='pyvmomi is required for this module')
 
-    datacenter_states = {
-        'absent': {
-            'present': state_destroy_datacenter,
-            'absent': state_exit_unchanged,
-        },
-        'present': {
-            'present': state_exit_unchanged,
-            'absent': state_create_datacenter,
-        }
-    }
-    desired_state = module.params['state']
-    current_state = check_datacenter_state(module)
-
-    datacenter_states[desired_state][current_state](module)
+    context = connect_to_api(module)
+    state = module.params.get('state')
+
+    if state == 'present':
+        create_datacenter(context, module)
 
+    if state == 'absent':
+        destroy_datacenter(context, module)
 
 from ansible.module_utils.basic import *
 from ansible.module_utils.vmware import *