##### SUMMARY

The following snippet from https://github.com/ansible/ansible/blob/devel/test/integration/targets/vmware_guest/tasks/create_d1_c1_f0.yml uses `autoselect_datastore: True`.

```yaml
- name: create new VMs
  vmware_guest:
    validate_certs: False
    hostname: "{{ vcenter_hostname }}"
    username: "{{ vcenter_username }}"
    password: "{{ vcenter_password }}"
    name: newvm_1
    #template: "{{ item|basename }}"
    guest_id: centos64Guest
    datacenter: "{{ dc1 }}"
    hardware:
        num_cpus: 1
        num_cpu_cores_per_socket: 1
        memory_mb: 256
        hotadd_memory: true
        hotadd_cpu: false
        max_connections: 10
    disk:
        - size: 1gb
          type: thin
          autoselect_datastore: True
    state: poweredoff
    folder: F0
```

One of my two datastores is dedicated to the ISO image and so, is readOnly. But it still get selected consistently. I use the following hack to avoid the problem:

```diff
diff --git a/lib/ansible/modules/cloud/vmware/vmware_guest.py b/lib/ansible/modules/cloud/vmware/vmware_guest.py
index 6a63e97798..3648e3e87f 100644
--- a/lib/ansible/modules/cloud/vmware/vmware_guest.py
+++ b/lib/ansible/modules/cloud/vmware/vmware_guest.py
@@ -1925,6 +1925,15 @@ class PyVmomiHelper(PyVmomi):
 
                 datastore_freespace = 0
                 for ds in datastores:
+                    is_readonly = False
+                    for h in ds.host:
+                        if h.mountInfo.accessMode == 'readOnly':
+                            is_readonly = True
+                            break
+
+                    if is_readonly:
+                        continue
+
                     if (ds.summary.freeSpace > datastore_freespace) or (ds.summary.freeSpace == datastore_freespace and not datastore):
                         # If datastore field is provided, filter destination datastores
                         if 'datastore' in self.params['disk'][0] and \
```
<!--- Explain the problem briefly below -->

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->

vmware_guest

for prop in properties:
                try:
                    if '.' in prop:
                        key, remainder = prop.split('.', 1)
                        tmp = dict()
                        tmp[key] = self._extract(self._jsonify(getattr(obj, key)), remainder)
                        self._deepmerge(result, tmp)
                    else:
                        result[prop] = self._jsonify(getattr(obj, prop))
                        
                        prop_name = prop
                        if prop.lower() == '_moid':
                            prop_name = 'moid'
                        elif prop.lower() == '_vimref':
                            prop_name = 'vimref'
                        result[prop_name] = result[prop]
                except (AttributeError, KeyError):
                    self.module.fail_json(msg="Property '{0}' not found.".format(prop))
        else:
            result = self._jsonify(obj)
        return result
    def get_folder_path(self, cur):
        full_path = '/' + cur.name
        while hasattr(cur, 'parent') and cur.parent:
            if cur.parent == self.content.rootFolder:
                break
            cur = cur.parent
            full_path = '/' + cur.name + full_path
        return full_path