[Bug 1762178] Re: Poor documentation of netplan.io

[Mathieu Trudel-Lapierre]

NetworkManager absolutely supports all kinds of network devices,
including Bluetooth, DSL/PPPoE, Infiniband, Bond, Bridge, IP tunnels,
Teamed devices, VLANS, etc. If GNOME software doesn't support it, that's
their decision / a bug. You can use 'nm-connection-editor', the real
connection editor program from NetworkManager directly, to add any
supported type of device.

We specifically don't say anything about /etc/network/* files, because
this is netplan, not ifupdown, and as such ifupdown files are not used
-- we just don't specify what is unused; and neither do most projects.

You sure can install ifupdown back on your system if required, netplan
won't touch anything that is not configured by it in *.yaml files under
/etc/netplan. However, if you have found limitations in the use of
netplan with networkd/NetworkManager, please file separate bugs about
these so we can address them.

** Changed in: netplan.io (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1762178

Title:
  Poor documentation of netplan.io

Status in netplan.io package in Ubuntu:
  Invalid

Bug description:
  Hi,

  I just tested a beta release of 18.04 and read the release notes and
  found ifupdown to be replaced by netplan.io.

  This does not look like production-ready, the documentation is
  insufficient, especially about migration from earlier ubuntu versions.

  - There's a file /etc/netplan/01-network-manger-all.yaml, which just
  says that all devices are managed by NetworkManager. But the
  Networkmanager just offers configuration for Hardware and VPN, not for
  bridges. Although I found some syntax hints in the internet, it is
  anything but obvious what ubuntu's intended clean way of configuring
  virtual interfaces, bridges and things like that is.

  
  - There is no hint about what happens with /etc/network/if*.d scripts. Are they still executed? Should one make a /etc/Networkmanager/dispatcher.d script out of it? Or rather a systemd service?

  There are still some packages coming with /etc/network/if*.d scripts.
  Will these work or are these packages broken then?


  - Both Networkmanager and systemd have limitations and problems and
  cause trouble. What happens if one installs ifupdown? Will that break
  anything?

  
  - What if I need to remove Networkmanager/get rid of it? The documention says systemd can be used as a renderer option. Does that work?

  
  regards

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