##### 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

else:
            connect_args.update(user=username, pwd=password)
            service_instance = connect.SmartConnect(**connect_args)
    except vim.fault.InvalidLogin as invalid_login:
        msg = "Unable to log on to vCenter or ESXi API at %s:%s " % (hostname, port)
        module.fail_json(msg="%s as %s: %s" % (msg, username, invalid_login.msg) + msg_suffix)
    except vim.fault.NoPermission as no_permission:
        module.fail_json(msg="User %s does not have required permission"
                             " to log on to vCenter or ESXi API at %s:%s : %s" % (username, hostname, port, no_permission.msg))
    except (requests.ConnectionError, ssl.SSLError) as generic_req_exc:
        module.fail_json(msg="Unable to connect to vCenter or ESXi API at %s on TCP/%s: %s" % (hostname, port, generic_req_exc))
    except vmodl.fault.InvalidRequest as invalid_request:
        
        msg = "Failed to get a response from server %s:%s " % (hostname, port)
        module.fail_json(msg="%s as request is malformed: %s" % (msg, invalid_request.msg) + msg_suffix)
    except Exception as generic_exc:
        msg = "Unknown error while connecting to vCenter or ESXi API at %s:%s" % (hostname, port) + msg_suffix
        module.fail_json(msg="%s : %s" % (msg, generic_exc))
    if service_instance is None:
        msg = "Unknown error while connecting to vCenter or ESXi API at %s:%s" % (hostname, port)
        module.fail_json(msg=msg + msg_suffix)
    
    
    
    if disconnect_atexit:
        atexit.register(connect.Disconnect, service_instance)
    if return_si:
        return service_instance, service_instance.RetrieveContent()
    return service_instance.RetrieveContent()
def get_all_objs(content, vimtype, folder=None, recurse=True):