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[melanie witt <1946816@xxxxxxxxxxxxxxxxxx>]

This is actually Invalid for nova. I made a mistake when I read the api-
ref and missed that it says [1]:

"""
tags (Optional)

query

string

A list of tags to filter the server list by. Servers that match all tags
in this list will be returned. Boolean expression in this case is ‘t1
AND t2’. Tags in query must be separated by comma.

New in version 2.26
"""

with the important bit being "Tags in query must be separated by comma."
The nova API expects the tags request param to be of the format
"tag1,tag2,tag3" and does not expect a string representation of a JSON
list.

[1] https://docs.openstack.org/api-ref/compute/?expanded=list-servers-
detailed-detail#id15

** Changed in: nova
       Status: In Progress => Invalid

** Changed in: nova
     Assignee: melanie witt (melwitt) => (unassigned)

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https://bugs.launchpad.net/bugs/1946816

Title:
  server list by 'tags' does not work

Status in OpenStack Compute (nova):
  Invalid
Status in python-openstackclient:
  Fix Released

Bug description:
  Copied from a downtream bug [1]:

  Description of problem:
  I have a number of servers tagged with 'capo-e2e'. I want to list them by tag. I cannot do this. I added a second tag 'capo_e2e', and I can't select by that, either.

  $ openstack --os-compute-api-version 2.26 server show 64232f5b-01e8-4139-be54-59c0399c40a8
  +-----------------------------+----------------------------------------------------------+
  | Field                       | Value                                                    |
  +-----------------------------+----------------------------------------------------------+
  | OS-DCF:diskConfig           | MANUAL                                                   |
  | OS-EXT-AZ:availability_zone | nova                                                     |
  | OS-EXT-STS:power_state      | Running                                                  |
  | OS-EXT-STS:task_state       | None                                                     |
  | OS-EXT-STS:vm_state         | active                                                   |
  | OS-SRV-USG:launched_at      | 2021-10-11T12:27:27.000000                               |
  | OS-SRV-USG:terminated_at    | None                                                     |
  | accessIPv4                  |                                                          |
  | accessIPv6                  |                                                          |
  | addresses                   | capo-e2e-network=10.0.2.16                               |
  | config_drive                |                                                          |
  | created                     | 2021-10-11T12:27:16Z                                     |
  | description                 | capo-e2e-worker                                          |
  | flavor                      | m1.xlarge (86d33ae4-b13d-4381-84a8-a0c307115bf9)         |
  | hostId                      | 6ad047fd6e10b28977a60c38bde9c73b24130c0b24012a42fcdda227 |
  | id                          | 64232f5b-01e8-4139-be54-59c0399c40a8                     |
  | image                       | ubuntu-2004-lts (cbabe19a-de0d-4297-bb5e-65ae7db4946a)   |
  | key_name                    | None                                                     |
  | locked                      | False                                                    |
  | name                        | capo-e2e-worker                                          |
  | progress                    | 0                                                        |
  | project_id                  | 25c8689dad974accbed26d0c67aadb4f                         |
  | properties                  |                                                          |
  | security_groups             | name='capo-e2e-secgroup'                                 |
  | status                      | ACTIVE                                                   |
  | tags                        | capo-e2e, capo_e2e                                       |
  | updated                     | 2021-10-11T12:27:28Z                                     |
  | user_id                     | bc844776c9a143b087ae4b811778ec2e                         |
  | volumes_attached            |                                                          |
  +-----------------------------+----------------------------------------------------------+

  $ openstack --os-compute-api-version 2.26 server list --tags capo-e2e
  Invalid input for query parameters tags. Value: ['capo-e2e']. "['capo-e2e']" is not a 'regex' (HTTP 400) (Request-ID: req-91a4d02a-8e4a-44c7-aa04-99808648a847)

  (Incidentally, there may be good technical reasons for 👆 but it's a
  very bad api experience)

  The following all list no servers:

  $ openstack --os-compute-api-version 2.26 server list --tags capo\\-e2e
  $ openstack --os-compute-api-version 2.26 server list --tags capo_e2e
  $ openstack --os-compute-api-version 2.26 server list --tags e
  $ openstack --os-compute-api-version 2.26 server list --tags '.*e.*'
  $ openstack --os-compute-api-version 2.26 server list --tags '/.*e.*/'

  (I'm basically just guessing random syntax)

  Version-Release number of selected component (if applicable):
  openstack-nova-api-20.6.2-2.20210607104828.el8ost.4.noarch

  How reproducible:
  Always

  [1] https://bugzilla.redhat.com/show_bug.cgi?id=2012910

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