Applying Netplan with OVS other-config Failing

[Dave Heinz]

I have a link which is an OVS bridge that has the other-config:hwaddr applied. When applying this the first time, all works as expected.

However, when running "Netplan apply" the second time, a "remove" command is attempted on the old configuration and ovs-vsctl errors on the command.

This is the YAML file for the port:

network:
    version: 2
    renderer: networkd
    ethernets:
        ens3: {}
    bridges:
        wan1:
            dhcp4: true
            dhcp4-overrides:
                    route-metric: 10
            interfaces: [ens3]
            mtu: 1450
            openvswitch:
                    other-config:
                            hwaddr: fa:16:3e:4b:19:3a

This is seen in syslog when attempting to run it again when new configuration for other ports are added:

Mar 8 20:55:59 pod-focal-1 ovs-vsctl: ovs|00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl remove Bridge wan1 other-config hwaddr fa:16:3e:4b:19:3a
Mar 8 20:55:59 pod-focal-1 ovs-vsctl: ovs|00002|db_ctl_base|ERR|fa:16:3e:4b:19:3a: unexpected ":" parsing set of 1 or more strings

root@pod-focal-1:~# netplan apply
ovs-vsctl: fa:16:3e:4b:19:3a: unexpected ":" parsing set of 1 or more strings
Traceback (most recent call last):
  File "/usr/sbin/netplan", line 23, in <module>
    netplan.main()
  File "/usr/share/netplan/netplan/cli/core.py", line 50, in main
    self.run_command()
  File "/usr/share/netplan/netplan/cli/utils.py", line 257, in run_command
    self.func()
  File "/usr/share/netplan/netplan/cli/commands/apply.py", line 55, in run
    self.run_command()
  File "/usr/share/netplan/netplan/cli/utils.py", line 257, in run_command
    self.func()
  File "/usr/share/netplan/netplan/cli/commands/apply.py", line 154, in command_apply
    NetplanApply.process_ovs_cleanup(config_manager, old_files_ovs, restart_ovs, exit_on_error)
  File "/usr/share/netplan/netplan/cli/commands/apply.py", line 315, in process_ovs_cleanup
    apply_ovs_cleanup(config_manager, ovs_old, ovs_current)
  File "/usr/share/netplan/netplan/cli/ovs.py", line 168, in apply_ovs_cleanup
    clear_setting(t, iface, setting, val)
  File "/usr/share/netplan/netplan/cli/ovs.py", line 94, in clear_setting
    _del_dict(type, iface, split[1], split[2], value)
  File "/usr/share/netplan/netplan/cli/ovs.py", line 52, in _del_dict
    subprocess.check_call([OPENVSWITCH_OVS_VSCTL, 'remove', type, iface, column, key, value])
  File "/usr/lib/python3.8/subprocess.py", line 364, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['/usr/bin/ovs-vsctl', 'remove', 'Bridge', 'wan1', 'other-config', 'hwaddr', 'fa:16:3e:4b:19:3a']' returned non-zero exit status 1.

OVS:
root@pod-focal-1:~# ovs-vsctl --version
ovs-vsctl (Open vSwitch) 2.14.2
DB Schema 8.2.0

Ubuntu 20.04:
root@pod-focal-1:~# netplan info
netplan.io:
  features:
  - generate-just-in-time
  - generated-supplicant
  - dbus-config
  - auth-phase2
  - dhcp-use-domains
  - ipv6-mtu
  - modems
  - sriov
  - openvswitch
  website: https://netplan.io/

root@pod-focal-1:~# dpkg -l | grep netplan
ii libnetplan0:amd64 0.101-0ubuntu3~20.04.2 amd64 YAML network configuration abstraction runtime library
ii netplan.io 0.101-0ubuntu3~20.04.2 amd64 YAML network configuration abstraction for various backends
root@pod-focal-1:~# uname -a
Linux pod-focal-1 5.8.0-44-generic #50~20.04.1-Ubuntu SMP Wed Feb 10 21:07:30 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

[Dave Heinz (disirk74)]

This appears to be a duplicate of "1913906" ...

[Dave Heinz (disirk74)]

For my use case, I changed Line 52 in /usr/share/netplan/netplan/cli/ovs.py from:

subprocess.check_call([OPENVSWITCH_OVS_VSCTL, 'remove', type, iface, column, key, value])

to:

subprocess.check_call([OPENVSWITCH_OVS_VSCTL, 'remove', type, iface, column, key])

It now works for MY scenario, but not sure it would work for all.