[Bug 1773071] [NEW] Netplan unknown key bridges

[Gregory Christensen]

Public bug reported:

I'm trying to set up a network bridge for KVM but I keep getting a the
error,"Error in network definition //etc/netplan/50-cloud-init.yaml line
5 column 0: unknown key bridges."  The funny thing is line 5 column 0 is
network, not bridges, so I'm not sure why it is saying bridges.  Here is
the .yaml I'm trying:

# This file is generated from information provided by
# the datasource.  Changes to it will not persist across an instance.
# To disable cloud-init's network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
  version: 2
  renderer: networkd
  ethernets:
    enp2s0:
      dhcp4: no
bridges:
    br0:
      interfaces: [enp2s0]
      dhcp4: no
      addresses: [192.168.1.3/24]
      gateway4: 192.168.1.1
      nameservers:
        addresses: [192.168.1.1]

Description:	Ubuntu 18.04 LTS
Release:	18.04
netplan:
  Installed: (none)
  Candidate: 1.10.1-5build1
  Version table:
     1.10.1-5build1 500
        500 http://archive.ubuntu.com/ubuntu bionic/universe amd64 Packages

** Affects: nplan (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1773071

Title:
  Netplan unknown key bridges

Status in nplan package in Ubuntu:
  New

Bug description:
  I'm trying to set up a network bridge for KVM but I keep getting a the
  error,"Error in network definition //etc/netplan/50-cloud-init.yaml
  line 5 column 0: unknown key bridges."  The funny thing is line 5
  column 0 is network, not bridges, so I'm not sure why it is saying
  bridges.  Here is the .yaml I'm trying:

  # This file is generated from information provided by
  # the datasource.  Changes to it will not persist across an instance.
  # To disable cloud-init's network configuration capabilities, write a file
  # /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
  # network: {config: disabled}
  network:
    version: 2
    renderer: networkd
    ethernets:
      enp2s0:
        dhcp4: no
  bridges:
      br0:
        interfaces: [enp2s0]
        dhcp4: no
        addresses: [192.168.1.3/24]
        gateway4: 192.168.1.1
        nameservers:
          addresses: [192.168.1.1]

  Description:	Ubuntu 18.04 LTS
  Release:	18.04
  netplan:
    Installed: (none)
    Candidate: 1.10.1-5build1
    Version table:
       1.10.1-5build1 500
          500 http://archive.ubuntu.com/ubuntu bionic/universe amd64 Packages

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