This bug was initially created as a copy of Bug #1871165

I am copying this bug because: 



Description of problem:
When we cinder manage a volume to set the host, it will be blocked by the regex validation when it's IPv6 because brackets are not included in the regex pattern.

I believe this could be fixed by adding the brackets to this pattern [a]. Asking the customer to test and will submit a patch upstream if it works.

Version-Release number of selected component (if applicable):
openstack-cinder-15.1.1-0.20200403213514.cfa2d1b.el8ost.noarch


Additional info:

[a] https://opendev.org/openstack/cinder/src/branch/master/cinder/api/validation/parameter_types.py#L232

[1]
~~~
DEBUG (shell:1025) Invalid input for field/attribute host. Value: hostgroup@tripleo_netapp#[dead:beef::cafe]:/remus_cinder_01. 'hostgroup@tripleo_netapp#[dead:beef::cafe]:/remus_cinder_01' does not match '^[a-zA-Z0-9-._#@:/+]*$' (HTTP 400) (Request-ID: req-2aafd9a5-3f3e-44cd-9e97-e9391636822f)
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/cinderclient/shell.py", line 1017, in main
    OpenStackCinderShell().main(sys.argv[1:])
  File "/usr/lib/python3.6/site-packages/cinderclient/shell.py", line 790, in main
    args.func(self.cs, args)
  File "/usr/lib/python3.6/site-packages/cinderclient/v3/shell.py", line 1265, in do_manage
    cluster=getattr(args, 'cluster', None))
  File "/usr/lib/python3.6/site-packages/cinderclient/v3/volumes.py", line 247, in manage
    return self._create('/os-volume-manage', body, 'volume')
  File "/usr/lib/python3.6/site-packages/cinderclient/base.py", line 302, in _create
    resp, body = self.api.client.post(url, body=body)
  File "/usr/lib/python3.6/site-packages/cinderclient/client.py", line 217, in post
    return self._cs_request(url, 'POST', **kwargs)
  File "/usr/lib/python3.6/site-packages/cinderclient/client.py", line 205, in _cs_request
    return self.request(url, method, **kwargs)
  File "/usr/lib/python3.6/site-packages/cinderclient/client.py", line 191, in request
    raise exceptions.from_response(resp, body)
cinderclient.exceptions.BadRequest: Invalid input for field/attribute host. Value: hostgroup@tripleo_netapp#[dead:beef::cafe]:/remus_cinder_01. 'hostgroup@tripleo_netapp#[dead:beef::cafe]:/remus_cinder_01' does not match '^[a-zA-Z0-9-._#@:/+]*$' (HTTP 400) (Request-ID: req-2aafd9a5-3f3e-44cd-9e97-e9391636822f)
DEBUG:cinderclient.shell:Invalid input for field/attribute host. Value: hostgroup@tripleo_netapp#[dead:beef::cafe]:/remus_cinder_01. 'hostgroup@tripleo_netapp#[dead:beef::cafe]:/remus_cinder_01' does not match '^[a-zA-Z0-9-._#@:/+]*$' (HTTP 400) (Request-ID: req-2aafd9a5-3f3e-44cd-9e97-e9391636822f)
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/cinderclient/shell.py", line 1017, in main
    OpenStackCinderShell().main(sys.argv[1:])
  File "/usr/lib/python3.6/site-packages/cinderclient/shell.py", line 790, in main
    args.func(self.cs, args)
  File "/usr/lib/python3.6/site-packages/cinderclient/v3/shell.py", line 1265, in do_manage
    cluster=getattr(args, 'cluster', None))
  File "/usr/lib/python3.6/site-packages/cinderclient/v3/volumes.py", line 247, in manage
    return self._create('/os-volume-manage', body, 'volume')
  File "/usr/lib/python3.6/site-packages/cinderclient/base.py", line 302, in _create
    resp, body = self.api.client.post(url, body=body)
  File "/usr/lib/python3.6/site-packages/cinderclient/client.py", line 217, in post
    return self._cs_request(url, 'POST', **kwargs)
  File "/usr/lib/python3.6/site-packages/cinderclient/client.py", line 205, in _cs_request
    return self.request(url, method, **kwargs)
  File "/usr/lib/python3.6/site-packages/cinderclient/client.py", line 191, in request
    raise exceptions.from_response(resp, body)
cinderclient.exceptions.BadRequest: Invalid input for field/attribute host. Value: hostgroup@tripleo_netapp#[dead:beef::cafe]:/remus_cinder_01. 'hostgroup@tripleo_netapp#[dead:beef::cafe]:/remus_cinder_01' does not match '^[a-zA-Z0-9-._#@:/+]*$' (HTTP 400) (Request-ID: req-2aafd9a5-3f3e-44cd-9e97-e9391636822f)
ERROR: Invalid input for field/attribute host. Value: hostgroup@tripleo_netapp#[dead:beef::cafe]:/remus_cinder_01. 'hostgroup@tripleo_netapp#[dead:beef::cafe]:/remus_cinder_01' does not match '^[a-zA-Z0-9-._#@:/+]*$' (HTTP 400) (Request-ID: req-2aafd9a5-3f3e-44cd-9e97-e9391636822f)
~~~