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[rohlik <2084137@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Description
===========
Hello, this is probably a minor, non-critical bug, but it's IMO worth reporting. 

If you create a new instance in a network without DHCP, using
configuration drive (cloud-config ISO-9660 drive) the network on
instance is configured properly, but `cloud-init schema --system`
command shows error "Additional properties are not allowed ('ipv4' was
unexpected)".


Steps to reproduce
==================
Create a new instance with fixed-ip in a network that has DHCP disabled.

Check this command to see if there's the error:

    $ sudo cloud-init schema --system


Expected result
===============

network-config JSON shouldn't contain `ipv4: true` and `cloud-init
schema` should not show the error

Environment
===========

Openstack and Nova version: 2024.1

VM distribution: Ubuntu 24.04 (x86)

Logs & Configs
==============


    $ cloud-init schema --system 
    Found cloud-config data types: user-data, network-config
    
    1. user-data at /var/lib/cloud/instances/9316d897-e8ed-4be7-85e6-1a2e3064adb6/cloud-config.txt:
      Valid schema user-data
    
    2. network-config at /var/lib/cloud/instances/9316d897-e8ed-4be7-85e6-1a2e3064adb6/network-config.json:
      Invalid network-config /var/lib/cloud/instances/9316d897-e8ed-4be7-85e6-1a2e3064adb6/network-config.json
      Error: Cloud config schema errors: config.0.subnets.0: Additional properties are not allowed ('ipv4' was unexpected)

    Error: Invalid schema: network-config

Note that (1) is not relevant, it's related to user-data we provided to
change a root password


    $ cat /var/lib/cloud/instances/9316d897-e8ed-4be7-85e6-1a2e3064adb6/network-config.json
    {
     "config": [
      {
       "mac_address": "fa:16:3e:4a:28:eb",
       "mtu": 1500,
       "name": "ens3",
       "subnets": [
        {
         "address": "10.15.0.110",
         "ipv4": true,
         "netmask": "255.255.255.0",
         "routes": [
          {
           "gateway": "10.15.0.254",
           "netmask": "0.0.0.0",
           "network": "0.0.0.0"
          }
         ],
         "type": "static"
        }
       ],
       "type": "physical"
      }
     ],
     "version": 1
    }

** Affects: nova
     Importance: Undecided
         Status: New


** Tags: cloud-init fixed-ip network-config

** Tags added: cloud-init

** Tags added: network-config

** Tags added: fixed-ip

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https://bugs.launchpad.net/bugs/2084137

Title:
  Instances with a static (fixed-ip) addresses report "Additional
  properties are not allowed ('ipv4' was unexpected)" error with `cloud-
  init schema --system` command

Status in OpenStack Compute (nova):
  New

Bug description:
  Description
  ===========
  Hello, this is probably a minor, non-critical bug, but it's IMO worth reporting. 

  If you create a new instance in a network without DHCP, using
  configuration drive (cloud-config ISO-9660 drive) the network on
  instance is configured properly, but `cloud-init schema --system`
  command shows error "Additional properties are not allowed ('ipv4' was
  unexpected)".

  
  Steps to reproduce
  ==================
  Create a new instance with fixed-ip in a network that has DHCP disabled.

  Check this command to see if there's the error:

      $ sudo cloud-init schema --system

  
  Expected result
  ===============

  network-config JSON shouldn't contain `ipv4: true` and `cloud-init
  schema` should not show the error

  Environment
  ===========

  Openstack and Nova version: 2024.1

  VM distribution: Ubuntu 24.04 (x86)

  Logs & Configs
  ==============

  
      $ cloud-init schema --system 
      Found cloud-config data types: user-data, network-config
      
      1. user-data at /var/lib/cloud/instances/9316d897-e8ed-4be7-85e6-1a2e3064adb6/cloud-config.txt:
        Valid schema user-data
      
      2. network-config at /var/lib/cloud/instances/9316d897-e8ed-4be7-85e6-1a2e3064adb6/network-config.json:
        Invalid network-config /var/lib/cloud/instances/9316d897-e8ed-4be7-85e6-1a2e3064adb6/network-config.json
        Error: Cloud config schema errors: config.0.subnets.0: Additional properties are not allowed ('ipv4' was unexpected)

      Error: Invalid schema: network-config

  Note that (1) is not relevant, it's related to user-data we provided
  to change a root password

  
      $ cat /var/lib/cloud/instances/9316d897-e8ed-4be7-85e6-1a2e3064adb6/network-config.json
      {
       "config": [
        {
         "mac_address": "fa:16:3e:4a:28:eb",
         "mtu": 1500,
         "name": "ens3",
         "subnets": [
          {
           "address": "10.15.0.110",
           "ipv4": true,
           "netmask": "255.255.255.0",
           "routes": [
            {
             "gateway": "10.15.0.254",
             "netmask": "0.0.0.0",
             "network": "0.0.0.0"
            }
           ],
           "type": "static"
          }
         ],
         "type": "physical"
        }
       ],
       "version": 1
      }

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