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Type: Bug
Resolution: Unresolved
Priority: Major
Fix Version/s: rhel-9.6
Affects Version/s: rhel-9.2.0.z
Component/s: nmstate
Labels:
- NMT-refined
- Triaged

Regression:
No
Severity:
Important

Pool Team:

rhel-sst-network-management
Sub-System Group:

ssg_networking

Story Points:
5

Status Summary:

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Customer/Partner	Jira ID	Customer Case	Status	Details
Nokia	RHEL-67324	03834014		This issue relates to unexpected network reactivation when marking routes as “absent” within Nmstate policies and this leads to network disconnections. Engineering will investigate the root cause and find possible adjustments to prevent this network reactivation. The next steps are to confirm the cause and develop a solution to apply configurations without the flapping. [2024-11-18] An investigation spike (NMT-1263) has been created to address the workaround currently implemented in Nmstate for managing routes that is linked to this issue. This work is ongoing within the current sprint.

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Customer/Partner Jira ID Customer Case Status Details Nokia RHEL-67324 03834014 This issue relates to unexpected network reactivation when marking routes as “absent” within Nmstate policies and this leads to network disconnections. Engineering will investigate the root cause and find possible adjustments to prevent this network reactivation. The next steps are to confirm the cause and develop a solution to apply configurations without the flapping. [2024-11-18] An investigation spike (NMT-1263) has been created to address the workaround currently implemented in Nmstate for managing routes that is linked to this issue. This work is ongoing within the current sprint.

Target Version:

rhel-9.2.0.z
Blocked:
False
Blocked Reason:

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None

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None
Product Documentation Required:
None
Sprint:
None

Acceptance Criteria:
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Given a system admin is configuring a NNCP with routes configured for a specific connection,

When they add an "absent" state to any route in the policy,

Then, the system should update the route configuration without deactivating or reactivating the connection.

Definition of Done:

The implementation meets the acceptance criteria

Integration tests are written and pass

The code is part of a downstream build attached to an errata

The fix is backported into RHEL-9.2.z
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Given a system admin is configuring a NNCP with routes configured for a specific connection, When they add an "absent" state to any route in the policy, Then, the system should update the route configuration without deactivating or reactivating the connection. Definition of Done: The implementation meets the acceptance criteria Integration tests are written and pass The code is part of a downstream build attached to an errata The fix is backported into RHEL-9.2.z
Preliminary Testing:
None
Test Coverage:
None

Experience:
RH Private Keywords:

PX Impact Score:
SFDC Cases Counter:
SFDC Cases Open:
SFDC Cases Links:

Planning:
None

This comes from this bug RHEL-64707, but when a new 'absent' is added to a route in an NNCP

k-nmstate version

$ oc  get csv -n openshift-nmstate
NAME                                              DISPLAY                       VERSION               REPLACES   PHASE
kubernetes-nmstate-operator.4.14.0-202409250809   Kubernetes NMState Operator   4.14.0-202409250809              Succeeded

Steps to reproduce the issue:

Create a NNCP as follows:

$ cat 02_NNCP_ROUTE.yaml_1
apiVersion: nmstate.io/v1
kind: NodeNetworkConfigurationPolicy
metadata:
  name: bond-tenant-vlan111-ipv4-route-new
spec:
  nodeSelector:
    node-role.kubernetes.io/worker: ""
  desiredState:
    interfaces:
    - name: vlan111
      description: static IP on vlan111
      type: vlan
      state: up
    routes:
      config:
      - destination: xxxxx
        next-hop-address: xxxxx
        next-hop-interface: vlan111
      - destination: xxxxx
        next-hop-address: xxxxx
        next-hop-interface: vlan111
      - destination: xxxxx
        next-hop-address: xxxxx
        next-hop-interface: vlan111
      - destination: xxxxx
        next-hop-address: xxxxx
        next-hop-interface: vlan111
      - destination: xxxxx
        next-hop-address: xxxxx
        next-hop-interface: vlan111
      - destination: xxxxx
        next-hop-address: xxxxx
        next-hop-interface: vlan111
      - destination:  xxxxx
        next-hop-address: xxxxx
        next-hop-interface: vlan111
      - destination:  xxxxx
        next-hop-address: xxxxx
        next-hop-interface: vlan111  

$ oc apply -f 02_NNCP_ROUTE.yaml_1
nodenetworkconfigurationpolicy.nmstate.io/bond-tenant-vlan111-ipv4-route-new configured

$ oc get nncp bond-tenant-vlan111-ipv4-route-new
NAME                                 STATUS      REASON
bond-tenant-vlan111-ipv4-route-new   Available   SuccessfullyConfigured

$ oc get nnce | grep new 
sno-ctlplane-0.5g-deployment.lab.bond-tenant-vlan111-ipv4-route-new   Available   6m42s        SuccessfullyConfigured
sno-ctlplane-1.5g-deployment.lab.bond-tenant-vlan111-ipv4-route-new   Available   6m43s        SuccessfullyConfigured
sno-ctlplane-2.5g-deployment.lab.bond-tenant-vlan111-ipv4-route-new   Available   6m43s        SuccessfullyConfigured

Add "a new 'absent' in a route:

$ cat 02_NNCP_ROUTE.yaml_1
apiVersion: nmstate.io/v1
kind: NodeNetworkConfigurationPolicy
metadata:
  name: bond-tenant-vlan111-ipv4-route-new
spec:
  nodeSelector:
    node-role.kubernetes.io/worker: ""
  desiredState:
    interfaces:
    - name: vlan111
      description: static IP on vlan111
      type: vlan
      state: up
    routes:
      config:
      - destination: xxxxx
        next-hop-address: xxxxx
        next-hop-interface: vlan111
      - destination: xxxxx
        next-hop-address: xxxxx
        next-hop-interface: vlan111
      - destination: xxxxx
        next-hop-address: xxxxx
        next-hop-interface: vlan111
      - destination: xxxxx
        next-hop-address: xxxxx
        next-hop-interface: vlan111
      - destination: xxxxx
        next-hop-address: xxxxx
        next-hop-interface: vlan111
      - destination: xxxxx
        next-hop-address: xxxxx
        next-hop-interface: vlan111
      - destination:  xxxxx
        next-hop-address: xxxxx
        next-hop-interface: vlan111
      - destination:  xxxxx
        next-hop-address: xxxxx
        next-hop-interface: vlan111  
        state: absent

$ oc apply -f 02_NNCP_ROUTE.yaml_1
nodenetworkconfigurationpolicy.nmstate.io/bond-tenant-vlan111-ipv4-route-new configured

NM logs:

Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.2698] audit: op="checkpoint-create" arg="/org/freedesktop/NetworkManager/Checkpoint/17" pid=2694539 uid=0 result="success"
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.2713] audit: op="checkpoint-adjust-rollback-timeout" arg="/org/freedesktop/NetworkManager/Checkpoint/17" pid=2694539 uid=0 result="success"
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.6014] device (vlan111): state change: activated -> deactivating (reason 'user-requested', sys-iface-state: 'managed')
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.6032] audit: op="connection-deactivate" uuid="724ba310-d8e6-45db-b424-8804e16f14ea" name="vlan111" pid=2694539 uid=0 result="success"
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.6084] audit: op="connection-update" uuid="724ba310-d8e6-45db-b424-8804e16f14ea" name="vlan111" args="ipv4.routes" pid=2694539 uid=0 result="success"
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.6272] device (vlan111): state change: deactivating -> disconnected (reason 'user-requested', sys-iface-state: 'managed')
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.6477] device (vlan111): state change: disconnected -> unmanaged (reason 'user-requested', sys-iface-state: 'managed')
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.9098] audit: op="device-reapply" interface="vlan111" pid=2694539 uid=0 result="fail" reason="Device is not activated"
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.9148] device (vlan111): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.9164] device (vlan111): state change: unavailable -> disconnected (reason 'user-requested', sys-iface-state: 'managed')
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.9183] device (vlan111): Activation: starting connection 'vlan111' (724ba310-d8e6-45db-b424-8804e16f14ea)
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.9184] audit: op="connection-activate" uuid="724ba310-d8e6-45db-b424-8804e16f14ea" name="vlan111" pid=2694539 uid=0 result="success"
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.9189] device (vlan111): carrier: link connected
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.9192] device (vlan111): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.9202] device (vlan111): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.9221] device (vlan111): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.9228] audit: op="checkpoint-adjust-rollback-timeout" arg="/org/freedesktop/NetworkManager/Checkpoint/17" pid=2694539 uid=0 result="success"
Nov 13 12:05:07 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499507.9246] device (vlan111): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
Nov 13 12:05:08 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499508.1483] device (vlan111): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
Nov 13 12:05:08 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499508.1485] device (vlan111): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
Nov 13 12:05:08 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499508.1492] device (vlan111): Activation: successful, device activated.
Nov 13 12:05:09 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499509.3580] checkpoint[0x5642cc9296e0]: destroy /org/freedesktop/NetworkManager/Checkpoint/17
Nov 13 12:05:09 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499509.3588] audit: op="checkpoint-destroy" arg="/org/freedesktop/NetworkManager/Checkpoint/17" pid=2694646 uid=0 result="success"
Nov 13 12:06:03 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499563.5727] manager: (9ce135801c052c4): new Veth device (/org/freedesktop/NetworkManager/Devices/10477)
Nov 13 12:06:03 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499563.5745] device (9ce135801c052c4): carrier: link connected
Nov 13 12:06:03 sno-ctlplane-0.5g-deployment.lab NetworkManager[1182]: <info>  [1731499563.5951] manager: (9ce135801c052c4): new Open vSwitch Port device (/org/freedesktop/NetworkManager/Devices/10478)

Expected results: reapplying configuration instead of reactivates the connection

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nm-bug.sh
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2024/11/15 2:39 PM
nm-no-bug-down.sh
1 kB
2024/11/15 2:39 PM
nm-no-bug-reapply.sh
1 kB
2024/11/15 2:39 PM

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