##### 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

'msg': task.info.error.msg,
                'clonespec': clonespec_json,
                'configspec': configspec_json,
                'clone_method': clone_method
            }
            return kwargs
        else:
            
            vm = task.info.result
            if self.params['annotation']:
                annotation_spec = vim.vm.ConfigSpec()
                annotation_spec.annotation = str(self.params['annotation'])
                task = vm.ReconfigVM_Task(annotation_spec)
                self.wait_for_task(task)
                if task.info.state == 'error':
                    return {'changed': self.change_applied, 'failed': True, 'msg': task.info.error.msg, 'op': 'annotation'}
            if self.params['customvalues']:
                self.customize_customvalues(vm_obj=vm)
            if self.params['wait_for_ip_address'] or self.params['wait_for_customization'] or self.params['state'] in ['poweredon', 'restarted']:
                set_vm_power_state(self.content, vm, 'poweredon', force=False)
                if self.params['wait_for_ip_address']:
                    self.wait_for_vm_ip(vm)
                if self.params['wait_for_customization']:
                    is_customization_ok = self.wait_for_customization(vm)
                    if not is_customization_ok:
                        vm_facts = self.gather_facts(vm)
                        return {'changed': self.change_applied, 'failed': True, 'instance': vm_facts, 'op': 'customization'}
            vm_facts = self.gather_facts(vm)
            return {'changed': self.change_applied, 'failed': False, 'instance': vm_facts}
    def get_snapshots_by_name_recursively(self, snapshots, snapname):