Inventory addition to fabric fails when default creds are not set

[pritispa]

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Ansible Version and collection version

Ansible core: 2.18.0
dcnm collection: 3.5.0

DCNM version

• ND 3.2.1i/NDFC 12.2.2

Affected module(s)

• dcnm_inventory

Ansible Playbook

Task:

- name: Add Switches to VXLAN Fabric
  cisco.dcnm.dcnm_inventory:
    fabric: "{{ vxlan_fabric_parameters.FABRIC_NAME }}"
    state: merged
    config: "{{ vxlan_switch_list }}"
  register: result

Vars:

vxlan_switch_list:
  - seed_ip: [IP_REMOVED]
    auth_proto: MD5
    max_hops: 0
    role: spine
    preserve_config: false
    user_name: admin
    password: "pwdremoved"
  - seed_ip: [IP_REMOVED]
    auth_proto: MD5
    max_hops: 0
    role: spine
    preserve_config: false
    user_name: admin
    password: "pwdremoved"
  - seed_ip: [IP_REMOVED]
    auth_proto: MD5
    max_hops: 0
    role: leaf
    preserve_config: false
    user_name: admin
    password: "pwdremoved"
  - seed_ip: [IP_REMOVED]
    auth_proto: MD5
    max_hops: 0
    role: leaf
    preserve_config: false
    user_name: admin
    password: "pwdremoved"
  - seed_ip: [IP_REMOVED]
    auth_proto: MD5
    max_hops: 0
    role: leaf
    preserve_config: false
    user_name: admin
    password: "pwdremoved"
  - seed_ip: [IP_REMOVED]
    auth_proto: MD5
    max_hops: 0
    role: leaf
    preserve_config: false
    user_name: admin
    password: "pwdremoved"

Debug Output

https://gist.github.com/pritispa/3cd01036e1d62493fcaa802d2b86d502

Expected Behavior

Without Default creds being set in NDFC, there are two options to handle this situation:

1. Update module with option of discoveryCredForLan (GUI: Set individual device write credential) which should be set to true by default
2. Without providing the option, always set this as individual device write creds, that is discoveryCredForLan=true always.

Actual Behavior

Because of no device write credentials (and no default creds set), devices get stuck in migration mode

Steps to Reproduce

Just try to add switches to inventory using this module, while having no default creds being set in NDFC GUI.

References