dcnm_fabric: RP_COUNT Integer Validation Fails - Type Conversion Inconsistency in Parameter Rules

[skaszlik]

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Ansible Version and collection version

ansible [core 2.16.3]
python version = 3.10.14
jinja version = 3.1.6

DCNM version

NDFC "version": "12.2.2.241"

Affected module(s)

• dcnm_fabric

Ansible Playbook

---
- hosts: nac-fabric1
  any_errors_fatal: true
  collections:
    - cisco.dcnm

  vars:
    fabric_name: "nac-fabric1" 
    switch_ip: "198.18.133.14"

  tasks:    
    - name: Update fabrics (nac test)
      cisco.dcnm.dcnm_fabric:
        state: merged
        config:
        - FABRIC_NAME: nac-fabric1
          FABRIC_TYPE: VXLAN_EVPN
          DEPLOY: False

          BGP_AS: "65011"
          UNDERLAY_IS_V6: False
          FABRIC_INTERFACE_TYPE: p2p
          SUBNET_TARGET_MASK: 30
          LINK_STATE_ROUTING: ospf
          ANYCAST_GW_MAC: 12:34:56:78:90:00

          REPLICATION_MODE: Multicast
          RP_COUNT: 4
          RP_MODE: bidir
          RP_LB_ID: 254
          ENABLE_TRM: False
          MULTICAST_GROUP_SUBNET: 239.1.1.0/25
          PHANTOM_RP_LB_ID1: 2
          PHANTOM_RP_LB_ID2: 3
          PHANTOM_RP_LB_ID3: 114
          PHANTOM_RP_LB_ID4: 115

Debug Output

https://gist.github.com/skaszlik/0dfa70be57b145abbc941b4e18b8d3df

Expected Behavior

The validation should allow the configuration

Actual Behavior

The issue is in the validation logic. When comparing values, there appears to be a type mismatch. The verify_playbook_params.py module converts some values during validation.

ansible_collections/cisco/dcnm/plugins/module_utils/fabric/verify_playbook_params.py

But when comparing in the ruleset, it's likely expecting a specific type (string vs integer), causing the comparison to fail even though the values are numerically equal.

User/Symptom Focus:

• "PHANTOM_RP_LB_ID Parameters Reject Valid RP_COUNT Integer Values"
• "Fabric Validation Incorrectly Rejects Integer Parameters from YAML"
• "RP_COUNT: 4 Fails Validation While RP_COUNT: '4' Works"
• "ConversionUtils.make_int() Not Applied Consistently in verify_playbook_params.py"
• "Fabric Parameter Validation Missing Integer Type Normalization"

Steps to Reproduce

Run the provided example ansible playbook

References

The issue is describe in netascode/ansible-dc-vxlan repo:
netascode/ansible-dc-vxlan#425