QE verification effort for os-net-config conflict resolution functionality between ifcfg and NetworkManager connections. Related to parent feature RHOSSTRAT-660.

This task tracks the QE verification effort covering comprehensive testing scenarios for both ifcfg and nmstate providers to ensure proper conflict handling and resolution across various network configurations including bonds, bridges, teams, and VLANs.

Test Areas:

The basic idea of the verification will involve creation of various devices of types using cloud-init , ifcfg, nmcli commands

• ethernet
• linux bonds
• ovs_bridge with/without ovs bonds
• ovs_bridge with linux bonds
• ovs_user_bridge without dpdk bonds
• ovs_user_bridge with dpdk bonds
• vlans on linux bonds, interfaces, ovs_bridge, ovs_user_bridge
• sriov pf
• sriov vf
• All above cases with NIC partitioning

Create a config.yaml to remove the devices by using the device names and types like below

remove_config:
- remove_type: linux_bond
  remove_name: bond_api
- remove_type: sriov_vf
  remove_name: sriov:nic4:0
- remove_type: sriov_vf
  remove_name: sriov:nic3:0
- remove_type: sriov_pf
  remove_name: nic6
- remove_name: br-link0
  remove_type: ovs_user_bridge
- remove_name: dpdkbond0
  remove_type: ovs_dpdk_bond
- remove_name: dpdk0
  remove_type: ovs_dpdk_port
- remove_name: dpdk1
  remove_type: ovs_dpdk_port
- remove_name: sriov:nic3:3
  remove_type: sriov_vf
- remove_name: sriov:nic4:3
  remove_type: sriov_vf
- remove_type: ovs_user_bridge
  remove_name: br-dpdk0
- remove_type: ovs_dpdk_port
  remove_name: dpdk2
- remove_type: interface
  remove_name: nic5 

The config.yaml shall also include the network_config section.

Run os-net-config with the remove_config of the required devices and then check if the device is removed. 

Acceptance Criteria:

The verification of the removal could be confirmed by checking for the absence of configured device in

• nmcli c s
• ls /etc/sysconfig/network-scripts/ifcfg-* 
• ls /etc/sysconfig/network-scripts/route-* 
• grep $device /var/lib/os-net-config/sriov_config.yaml
• grep $device /var/lib/os-net-config/dpdk_mapping.yaml
• grep $device /etc/udev/rules.d/80-persistent-os-net-config.rules