ND_Manage_Networks: Support Empty Network Attachment Interfaces and PVLAN Secondary Networks

[AKDRG]

Related Issue(s)

#489

Proposed Changes

• Allow nd_manage_networks attachments to omit attach[].interfaces; missing interfaces now default to an empty list.
• Preserve empty interface payloads so Network attachments can be applied without explicit interface selection.
• Add playbook-facing PVLAN Network support for:
  • vlan_network_type: private_primary
  • vlan_network_type: private_secondary_community
  • primary_network_id for secondary community Networks
• Limit the public PVLAN contract to tested/supported values: normal, private_primary, and private_secondary_community.
• Ensure PVLAN secondary Network payloads are L2-only and do not emit l3Data.
• Preserve primaryNetworkId in standalone and MCFG oneManage Network payload flows.
• Avoid injecting contextual L3 defaults from argspec into sparse/PVLAN Network configs.

Test Notes

• Ran focused unit tests:
  • PYENV_VERSION=ndfclab PYTHONPATH=$PWD/collections python -m pytest -q tests/unit/module_utils/orchestrators/test_networks.py
  • Result: 84 passed
• Ran formatting:
  • black -l 159
• Live tested on Fabric:
  • private_primary Network create succeeded.
  • private_secondary_community Network create succeeded with primary_network_id.
  • Secondary community Network merged update, replaced, explicit delete, and cleanup succeeded.

Cisco Nexus Dashboard Version

Cisco Nexus Dashboard 4.2.1

Related ND API Resource Category

• analyze
• infa
• manage
• onemanage
• other

Checklist

• Latest commit is rebased from develop with merge conflicts resolved
• New or updates to documentation has been made accordingly
• Assigned the proper reviewers