[Neutron] [train] Horizon port security group management fails
Albert Braden
ozzzo at yahoo.com
Thu Sep 15 12:46:23 UTC 2022
If I add/remove security groups from an instance in Horizon, it works. It's when I add/remove security groups from a port that the error occurs. One way to reproduce is to click on the instance and then go to the "Interfaces" tab, and click "Update Security Groups" on the right.
On Thursday, September 15, 2022, 08:21:17 AM EDT, Brendan Shephard <bshephar at redhat.com> wrote:
Hey,
I'm doing it from the instances one:https://openstack.bne-home.net/dashboard/project/instances/ccb72b14-3694-40fa-9b3b-ec1a8d7ef046/
But for what it's worth. I get the same error if I do it from:https://openstack.bne-home.net/dashboard/project/networks/acefae53-b4d5-422f-bcca-dc32a0785d21/detail
Interesting that it worked for you there. Be good to confirm with @ozzzo at yahoo.com as well as to exactly where in Horizon he is trying to modify the security groups. Just so we're all trying to do the exact same thing.
My environment is also deployed from the latest tripleo packages, so I'll also test on that internal lab you referenced Sean. That would be more representative of Alberts issue since he is using RHOSP.
Brendan Shephard
Senior Software Engineer
Red Hat APAC
193 N Quay
Brisbane City QLD 4000
@RedHat Red Hat Red Hat
| | |
On Thu, Sep 15, 2022 at 10:12 PM Sean Mooney <smooney at redhat.com> wrote:
On Thu, 2022-09-15 at 21:33 +1000, Brendan Shephard wrote:
> Hey Sean,
>
> Thanks for the reply.
>
> For reference, I have all the steps to reproduce along with the relevant
> debug logs attached to this LP:
> https://bugs.launchpad.net/neutron/+bug/1989627
>
> But, to summarize. If I go to any random instance in Horizon as a member
> user - not a admin. Then try to remove any Security Group at all from any
> of the ports it fails with the policy violation (I attached a screenshot of
> where I'm making that change in Horizon). But doing it with the same user
> from the cli works fine. Since I'm editing individual interfaces there,
> rather than the instance itself. I assumed these would all be API calls to
> Neutron from Horizon rather than from Horizon to Nova.
updating the instance securty group will not affect any exsitng ports
when you want to add or remvoe security groups form a port in horizont
you do not do that via the instace secutity group you do it via the port edit dialog
in the port detail view under the network
https://<your cloud goes here>/dashboard/project/networks/ports/<port uuid>/detail
i just did that now on a train cloud we have internally and was able to add and remove a security group on a port.
>
> I just run server list --all to demonstrate I was indeed using a member
> user and not a admin since an admin would have seen VM's from all projects.
>
> I agree with you in principle. It should be exactly the same whether it
> comes from openstackclient or from Horizon. In fact, I was 98% positive I
> would be able to demonstrate the wrong user was being used in this case.
> But unfortunately, my efforts to reproduce it demonstrated that the two are
> indeed handled differently.
what page in horizon are you editing it form if i try and add/remove the secirty group via the interfaces tabe at
https://<cloud>/dashboard/project/instances/<instance uuid>/
it also work for me inlcuding removing all secuity groups and i am not an admin on this cloud.
specificly this is the redhat internal shared cloud i was testing on.
>
> I believe anyone should be able to reproduce it using the steps I outlined
> on the LP.
>
> Brendan Shephard
>
> Senior Software Engineer
>
> Red Hat APAC <https://www.redhat.com>
>
> 193 N Quay
>
> Brisbane City QLD 4000
> @RedHat <https://twitter.com/redhat> Red Hat
> <https://www.linkedin.com/company/red-hat> Red Hat
> <https://www.facebook.com/RedHatInc>
> <https://red.ht/sig>
> <https://redhat.com/summit>
>
>
> On Thu, Sep 15, 2022 at 8:48 PM Sean Mooney <smooney at redhat.com> wrote:
>
> > On Thu, 2022-09-15 at 08:59 +1000, Brendan Shephard wrote:
> > > Hey Albert,
> > >
> > > The policy is the default Neutron policy in OpenStack Train. These can
> > indeed be changed and customised, but my assumption is that you haven’t
> > created any custom policies. Horizon uses the default for each service
> > unless it’s been overwritten.
> > policy is defiend server side not client side so it applie equially to all
> > users of the api
> > so the behavior will be the same for horizon or the cli
> > if you ever find a delta because horizon say used a differnt token to make
> > the request that is a securty vulnerablity in horizon and should be
> > reported privatly to the horizon core team :)
> >
> > >
> > > If I create a non-admin user and try to change security groups I also
> > get the same error:
> > > 2022-09-14 22:01:33,370 64 INFO
> > openstack_dashboard.dashboards.project.networks.ports.workflows Failed to
> > update port 4df563ce-5464-4f7d-8aaf-c5496cdaefda: ((rule:update_port and
> > rule:update_port:binding:vnic_type) and
> > rule:update_port:port_security_enabled) is disallowed by policy
> > >
> > > And I can reproduce your same scenario ff I try via the CLI using these
> > steps:
> > > 1. Add entry for new user to clouds.yaml file:
> > > bne-home-test:
> > > auth:
> > > auth_url: https://openstack.bne-home.net:13000
> > > password: "test"
> > > project_domain_name: Default
> > > project_name: bne-home
> > > user_domain_name: Default
> > > username: test
> > > cacert: ~/.certs/overcloud-cacert.pem
> > > identity_api_version: '3'
> > > region_name: regionOne
> > > volume_api_version: ‘3'
> > >
> > > 2. export OS_CLOUD=bne-home-test
> > >
> > > 3. Try to remove security group from port:
> > > ❯ openstack server show test-lb-net -c security_groups -c addresses -f
> > yaml
> > > addresses:
> > > lb-mgmt-net:
> > > - 172.24.0.90
> > > vlan4-infra:
> > > - 172.20.13.175
> > > security_groups:
> > > - name: management-bne
> > the security group listed in nova is the default security group that will
> > be used by all port create by nova.
> > it only applie to ports created by nova and not ones that are passed in
> > using the uuid of a precreate port.
> >
> > you shoudl in general not mix managing security groups via nova and
> > neutron.
> > horizon shoudl prefer to manage security groups only via neutron if it can.
> > >
> > > ❯ openstack port show 4df563ce-5464-4f7d-8aaf-c5496cdaefda -c fixed_ips
> > -c port_security_enabled -c security_group_ids -f yaml
> > > fixed_ips:
> > > - ip_address: 172.20.13.175
> > > subnet_id: 71aad09a-3e7b-4399-97bf-075f066f6713
> > > port_security_enabled: true
> > > security_group_ids:
> > > - a3ae6e20-67df-4a72-9d5b-cc21ad87464f
> > >
> > > ❯ openstack port unset --security-group
> > a3ae6e20-67df-4a72-9d5b-cc21ad87464f 4df563ce-5464-4f7d-8aaf-c5496cdaefda
> > > ❯ openstack port show 4df563ce-5464-4f7d-8aaf-c5496cdaefda -c fixed_ips
> > -c port_security_enabled -c security_group_ids -f yaml
> > > fixed_ips:
> > > - ip_address: 172.20.13.175
> > > subnet_id: 71aad09a-3e7b-4399-97bf-075f066f6713
> > > port_security_enabled: true
> > > security_group_ids: []
> > >
> > >
> > > Verify that I’m definitely not a admin user:
> > > ❯ openstack server list --all
> > > Policy doesn't allow os_compute_api:servers:detail:get_all_tenants to be
> > performed. (HTTP 403) (Request-ID: req-75c19210-ad91-471f-b500-e1f3482825f8)
> > >
> > >
> > > I don’t think this user should be allowed to do that via the CLI either.
> > So that could be a bug there. The request in the Neutron server.log when I
> > do it via the CLI:
> > >
> > >
> > user can add or remove security groups without being and admin including
> > removing all securtiy groups thats intended behavior and should not require
> > admin.
> >
> > are you implying that horizon is doing "openstack server list --all" --all
> > is short for --all-tenants.
> > outside of the admin tab in horizon horizon would never pass the equivlent
> > of --all to the nova api.
> > > 2022-09-14 22:19:12.987 21 INFO neutron.wsgi [None
> > req-f99c4c15-003c-4f7e-9e41-9100daa2a566 781362d053ee4708a21430d3a825795a
> > 3ff28fc7abf742a6b7a0d016771dee49 - - default default]
> > 192.168.1.17,172.16.2.85 "PUT
> > /v2.0/ports/4df563ce-5464-4f7d-8aaf-c5496cdaefda HTTP/1.1" status: 200
> > len: 1102 time: 0.4449480
> > >
> > > VS Horizon:
> > > 2022-09-14 22:20:23.087 20 INFO neutron.wsgi [None
> > req-4c284690-eb69-43df-b205-4953a88ab87c 781362d053ee4708a21430d3a825795a
> > 3ff28fc7abf742a6b7a0d016771dee49 - - default default]
> > 172.20.10.25,172.16.2.85 "PUT
> > /v2.0/ports/4df563ce-5464-4f7d-8aaf-c5496cdaefda HTTP/1.1" status: 403
> > len: 386 time: 0.2209103
> > >
> > > I have raised a upstream bug for this since I can still reproduce it on
> > the latest version of OpenStack:
> > > https://bugs.launchpad.net/neutron/+bug/1989627
> > > Bug #1989627 “Policy enforcement variance between openstackcli a...” :
> > Bugs : neutron
> > > bugs.launchpad.net
> > policy is enfoced on the nova/neutron api it cant behave differntly for
> > horizon unless horizon is useing the wrong token.
> > i.e. not he users token.
> > >
> > >
> > > Brendan Shephard
> > > Senior Software Engineer
> > > Brisbane, Australia
> > >
> > >
> > >
> > > > On 15 Sep 2022, at 2:25 am, Albert Braden <ozzzo at yahoo.com> wrote:
> > > >
> > > > Hi Brendan, thanks for offering to help! I'll contact you privately
> > with info about some languishing cases.
> > > >
> > > > Here's the policy line:
> > > > "update_port:port_security_enabled": "rule:context_is_advsvc or
> > rule:admin_or_network_owner"
> > > >
> > > > Does this policy only affect Horizon? I'm using the same non-admin
> > user for both CLI and Horizon, on a project where that user is a member.
> > The network was created by the admin user.
> > > > On Wednesday, September 14, 2022, 10:41:31 AM EDT, Brendan Shephard <
> > bshephar at redhat.com> wrote:
> > > >
> > > >
> > > > Hi Albert,
> > > >
> > > > While I may not be the best person to address your Horizon concern. I
> > can probably help you with your Red Hat support concerns. If you had any
> > issues you wanted addressed, or feedback you wanted to provide. Feel free
> > to give me a yell.
> > > >
> > > > Looking at your Horizon issue though. It seems the default policy file
> > is what prevents you from updating that port. We can see the default policy
> > like this for example:
> > > >
> > > > [root at controller-2 ~]# podman exec -it neutron_api
> > oslopolicy-policy-generator --namespace neutron | grep
> > "update_port:port_security_enabled"
> > > > "update_port:port_security_enabled": "rule:context_is_advsvc or
> > rule:admin_or_network_owner"
> > > >
> > > > When you execute the command via the CLI, which user are you using?
> > Are you just sourcing the overcloudrc file, or using export
> > OS_CLOUD=overcloud. If that’s the case then you would be using the admin
> > user on the CLI, but probably a different user when logging into Horizon.
> > > >
> > > > I too would suggest opening a support case. It sounds like you have
> > previously had a negative experience with that. If you want to open a new
> > one and share the case number with me, I can follow up on that for you. As
> > someone who personally knows a lot of the RHOSP Technical Support team from
> > around the world. I’m confident we can right whatever wrong may have
> > occurred there.
> > > >
> > > > Let me know if I can help in any way.
> > > >
> > > > Regards,
> > > >
> > > > Brendan Shephard
> > > > Senior Software Engineer
> > > > Brisbane, Australia
> > > >
> > > >
> > > >
> > > > > On 14 Sep 2022, at 10:36 pm, Albert Braden <ozzzo at yahoo.com> wrote:
> > > > >
> > > > > On CLI I can type "openstack port set --no-security-group <ID>" to
> > remove all security groups. In Horizon, the equivalent operation would be
> > using the - button to remove all groups and then clicking "Update." Using
> > the + button would be the equivalent of typing "openstack port set
> > --security-group <group ID>". There doesn't seem to be a way to remove a
> > single security group via CLI; I think the only way would be to set
> > --no-security-group and then add back the desired groups.
> > > > >
> > > > > I can successfully add security groups to a port via CLI, or I can
> > remove all security groups. If I go into Horizon and try these operations
> > then I get the error when I click "Update." So it appears that security
> > groups can be added and removed, with port security set, via CLI. We only
> > see the failure when we try to do it via Horizon.
> > > > >
> > > > > Regarding RHOSP support; I assume that you are joking, or maybe
> > haven't experienced the support that they offer.
> > > > > On Tuesday, September 13, 2022, 06:30:11 PM EDT, Laurent Dumont <
> > laurentfdumont at gmail.com> wrote:
> > > > >
> > > > >
> > > > > If you are running RHOSP, you might have a support contract with Red
> > Hat?
> > > > >
> > > > > Are you trying to remove all the security groups from a port that
> > has port_security enabled?
> > > > >
> > > > > On Tue, Sep 13, 2022 at 11:53 AM Albert Braden <ozzzo at yahoo.com
> > <mailto:ozzzo at yahoo.com>> wrote:
> > > > > Unfortunately we are running RHOSP in which Train is the latest and
> > greatest. This is what we see in horizon.log:
> > > > >
> > > > > [Tue Sep 13 15:28:15.362703 2022] [wsgi:error] [pid 27:tid
> > 139683266553600] [remote 10.232.233.11:57498 <http://10.232.233.11:57498/>]
> > Failed to update port 08fdbb97-4896-4afb-9390-41481ff27cac:
> > ((rule:update_port and rule:update_port:binding:vnic_type) and
> > rule:update_port:port_security_enabled) is disallowed by policy
> > > > > On Friday, September 9, 2022, 10:59:34 AM EDT, Pierre Riteau <
> > pierre at stackhpc.com <mailto:pierre at stackhpc.com>> wrote:
> > > > >
> > > > >
> > > > > Hello,
> > > > >
> > > > > This is more likely to be a Horizon bug than an issue with Kolla
> > itself, since Kolla doesn't change much from the default configuration.
> > > > >
> > > > > You should check Horizon logs in /var/log/kolla/horizon to find the
> > error. I would also encourage you to upgrade to a more recent release,
> > since Train has been marked as End of Life in Kolla recently.
> > > > >
> > > > > Cheers,
> > > > > Pierre Riteau (priteau)
> > > > >
> > > > > On Fri, 9 Sept 2022 at 15:41, Albert Braden <ozzzo at yahoo.com
> > <mailto:ozzzo at yahoo.com>> wrote:
> > > > > We're running kolla train and we're seeing an apparent bug when we
> > try to add or remove security groups on a port. We see error "Failed to
> > update port <ID>". It works fine in CLI; we only see this in Horizon. Is
> > this a known bug, or are we doing something wrong?
> > > > >
> > > >
> > >
> > > Hey Albert,
> > >
> > > The policy is the default Neutron policy in OpenStack Train. These can
> > indeed be changed and customised, but my assumption is that you haven’t
> > created any custom policies. Horizon uses the default for each service
> > unless it’s been overwritten.
> > >
> > > If I create a non-admin user and try to change security groups I also
> > get the same error:
> > > 2022-09-14 22:01:33,370 64 INFO
> > openstack_dashboard.dashboards.project.networks.ports.workflows Failed to
> > update port 4df563ce-5464-4f7d-8aaf-c5496cdaefda: ((rule:update_port and
> > rule:update_port:binding:vnic_type) and
> > rule:update_port:port_security_enabled) is disallowed by policy
> > >
> > > And I can reproduce your same scenario ff I try via the CLI using these
> > steps:
> > > 1. Add entry for new user to clouds.yaml file:
> > > bne-home-test:
> > > auth:
> > > auth_url: https://openstack.bne-home.net:13000
> > > password: "test"
> > > project_domain_name: Default
> > > project_name: bne-home
> > > user_domain_name: Default
> > > username: test
> > > cacert: ~/.certs/overcloud-cacert.pem
> > > identity_api_version: '3'
> > > region_name: regionOne
> > > volume_api_version: ‘3'
> > >
> > > 2. export OS_CLOUD=bne-home-test
> > >
> > > 3. Try to remove security group from port:
> > > ❯ openstack server show test-lb-net -c security_groups -c addresses -f
> > yaml
> > > addresses:
> > > lb-mgmt-net:
> > > - 172.24.0.90
> > > vlan4-infra:
> > > - 172.20.13.175
> > > security_groups:
> > > - name: management-bne
> > >
> > > ❯ openstack port show 4df563ce-5464-4f7d-8aaf-c5496cdaefda -c fixed_ips
> > -c port_security_enabled -c security_group_ids -f yaml
> > > fixed_ips:
> > > - ip_address: 172.20.13.175
> > > subnet_id: 71aad09a-3e7b-4399-97bf-075f066f6713
> > > port_security_enabled: true
> > > security_group_ids:
> > > - a3ae6e20-67df-4a72-9d5b-cc21ad87464f
> > >
> > > ❯ openstack port unset --security-group
> > a3ae6e20-67df-4a72-9d5b-cc21ad87464f 4df563ce-5464-4f7d-8aaf-c5496cdaefda
> > > ❯ openstack port show 4df563ce-5464-4f7d-8aaf-c5496cdaefda -c fixed_ips
> > -c port_security_enabled -c security_group_ids -f yaml
> > > fixed_ips:
> > > - ip_address: 172.20.13.175
> > > subnet_id: 71aad09a-3e7b-4399-97bf-075f066f6713
> > > port_security_enabled: true
> > > security_group_ids: []
> > >
> > >
> > > Verify that I’m definitely not a admin user:
> > > ❯ openstack server list --all
> > > Policy doesn't allow os_compute_api:servers:detail:get_all_tenants to be
> > performed. (HTTP 403) (Request-ID: req-75c19210-ad91-471f-b500-e1f3482825f8)
> > >
> > >
> > > I don’t think this user should be allowed to do that via the CLI either.
> > So that could be a bug there. The request in the Neutron server.log when I
> > do it via the CLI:
> > > 2022-09-14 22:19:12.987 21 INFO neutron.wsgi [None
> > req-f99c4c15-003c-4f7e-9e41-9100daa2a566 781362d053ee4708a21430d3a825795a
> > 3ff28fc7abf742a6b7a0d016771dee49 - - default default]
> > 192.168.1.17,172.16.2.85 "PUT
> > /v2.0/ports/4df563ce-5464-4f7d-8aaf-c5496cdaefda HTTP/1.1" status: 200
> > len: 1102 time: 0.4449480
> > >
> > > VS Horizon:
> > > 2022-09-14 22:20:23.087 20 INFO neutron.wsgi [None
> > req-4c284690-eb69-43df-b205-4953a88ab87c 781362d053ee4708a21430d3a825795a
> > 3ff28fc7abf742a6b7a0d016771dee49 - - default default]
> > 172.20.10.25,172.16.2.85 "PUT
> > /v2.0/ports/4df563ce-5464-4f7d-8aaf-c5496cdaefda HTTP/1.1" status: 403
> > len: 386 time: 0.2209103
> > >
> > > I have raised a upstream bug for this since I can still reproduce it on
> > the latest version of OpenStack:
> > > launchpad-og-image.pngBug #1989627 “Policy enforcement variance between
> > openstackcli a...” : Bugs : neutron
> > > bugs.launchpad.net
> > >
> > >
> > >
> > > Brendan Shephard
> > > Senior Software Engineer
> > > Brisbane, Australia
> > >
> > >
> > >
> > > > On 15 Sep 2022, at 2:25 am, Albert Braden <ozzzo at yahoo.com> wrote:
> > > >
> > > > Hi Brendan, thanks for offering to help! I'll contact you privately
> > with info about some languishing cases.
> > > >
> > > > Here's the policy line:
> > > > "update_port:port_security_enabled": "rule:context_is_advsvc or
> > rule:admin_or_network_owner"
> > > >
> > > > Does this policy only affect Horizon? I'm using the same non-admin
> > user for both CLI and Horizon, on a project where that user is a member.
> > The network was created by the admin user.
> > > > On Wednesday, September 14, 2022, 10:41:31 AM EDT, Brendan Shephard <
> > bshephar at redhat.com> wrote:
> > > >
> > > >
> > > > Hi Albert,
> > > >
> > > > While I may not be the best person to address your Horizon concern. I
> > can probably help you with your Red Hat support concerns. If you had any
> > issues you wanted addressed, or feedback you wanted to provide. Feel free
> > to give me a yell.
> > > >
> > > > Looking at your Horizon issue though. It seems the default policy file
> > is what prevents you from updating that port. We can see the default policy
> > like this for example:
> > > >
> > > > [root at controller-2 ~]# podman exec -it neutron_api
> > oslopolicy-policy-generator --namespace neutron | grep
> > "update_port:port_security_enabled"
> > > > "update_port:port_security_enabled": "rule:context_is_advsvc or
> > rule:admin_or_network_owner"
> > > >
> > > > When you execute the command via the CLI, which user are you using?
> > Are you just sourcing the overcloudrc file, or using export
> > OS_CLOUD=overcloud. If that’s the case then you would be using the admin
> > user on the CLI, but probably a different user when logging into Horizon.
> > > >
> > > > I too would suggest opening a support case. It sounds like you have
> > previously had a negative experience with that. If you want to open a new
> > one and share the case number with me, I can follow up on that for you. As
> > someone who personally knows a lot of the RHOSP Technical Support team from
> > around the world. I’m confident we can right whatever wrong may have
> > occurred there.
> > > >
> > > > Let me know if I can help in any way.
> > > >
> > > > Regards,
> > > >
> > > > Brendan Shephard
> > > > Senior Software Engineer
> > > > Brisbane, Australia
> > > >
> > > >
> > > >
> > > > > On 14 Sep 2022, at 10:36 pm, Albert Braden <ozzzo at yahoo.com> wrote:
> > > > >
> > > > > On CLI I can type "openstack port set --no-security-group <ID>" to
> > remove all security groups. In Horizon, the equivalent operation would be
> > using the - button to remove all groups and then clicking "Update." Using
> > the + button would be the equivalent of typing "openstack port set
> > --security-group <group ID>". There doesn't seem to be a way to remove a
> > single security group via CLI; I think the only way would be to set
> > --no-security-group and then add back the desired groups.
> > > > >
> > > > > I can successfully add security groups to a port via CLI, or I can
> > remove all security groups. If I go into Horizon and try these operations
> > then I get the error when I click "Update." So it appears that security
> > groups can be added and removed, with port security set, via CLI. We only
> > see the failure when we try to do it via Horizon.
> > > > >
> > > > > Regarding RHOSP support; I assume that you are joking, or maybe
> > haven't experienced the support that they offer.
> > > > > On Tuesday, September 13, 2022, 06:30:11 PM EDT, Laurent Dumont <
> > laurentfdumont at gmail.com> wrote:
> > > > >
> > > > >
> > > > > If you are running RHOSP, you might have a support contract with Red
> > Hat?
> > > > >
> > > > > Are you trying to remove all the security groups from a port that
> > has port_security enabled?
> > > > >
> > > > > On Tue, Sep 13, 2022 at 11:53 AM Albert Braden <ozzzo at yahoo.com>
> > wrote:
> > > > > > Unfortunately we are running RHOSP in which Train is the latest
> > and greatest. This is what we see in horizon.log:
> > > > > >
> > > > > > [Tue Sep 13 15:28:15.362703 2022] [wsgi:error] [pid 27:tid
> > 139683266553600] [remote 10.232.233.11:57498] Failed to update port
> > 08fdbb97-4896-4afb-9390-41481ff27cac: ((rule:update_port and
> > rule:update_port:binding:vnic_type) and
> > rule:update_port:port_security_enabled) is disallowed by policy
> > > > > > On Friday, September 9, 2022, 10:59:34 AM EDT, Pierre Riteau <
> > pierre at stackhpc.com> wrote:
> > > > > >
> > > > > >
> > > > > > Hello,
> > > > > >
> > > > > > This is more likely to be a Horizon bug than an issue with Kolla
> > itself, since Kolla doesn't change much from the default configuration.
> > > > > >
> > > > > > You should check Horizon logs in /var/log/kolla/horizon to find
> > the error. I would also encourage you to upgrade to a more recent release,
> > since Train has been marked as End of Life in Kolla recently.
> > > > > >
> > > > > > Cheers,
> > > > > > Pierre Riteau (priteau)
> > > > > >
> > > > > > On Fri, 9 Sept 2022 at 15:41, Albert Braden <ozzzo at yahoo.com>
> > wrote:
> > > > > > > We're running kolla train and we're seeing an apparent bug when
> > we try to add or remove security groups on a port. We see error "Failed to
> > update port <ID>". It works fine in CLI; we only see this in Horizon. Is
> > this a known bug, or are we doing something wrong?
> > > > > > >
> > > >
> > >
> >
> >
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