[Bug 1871825] [NEW] [FFe] Update to netplan.io 0.99

[Łukasz Zemczak]

Public bug reported:

[Freeze Exception Rationale]

We would like to request a Feature Freeze exception for the new netplan
0.99 as this release will be carrying important roadmap features
targeted for 20.04. Everything got drastically delayed due to not having
a full-time netplan maintainer for most part of the cycle, but the
features we want to deliver are still considered important. We are well
aware of how late it is in the cycle, and in normal circumstances we
would not request such an exception, but releasing the new netplan
version will also unblock some of the other teams. Notably the
generation of libnetplan will unblock other feature requests in packages
like NetworkManager for uc20.

Please note that this is a preemptive FFe as 0.99 is not yet ready to be
uploaded (as we are waiting for final schema approvals and reviews).

The most notable changes (besides usual bug-fixes) incoming in 0.99:
 * Adding `phase2` keyword to `auth` section
 * Allowing `critical` to be used without `dhcp4`/`dhcp6` enabled
 * Support for GSM modems in the NetworkManager backend (with the `modems` keyword) 
 * Adding `emit-lldp` option for networkd backend
 * Split out the netplan parser into a separate libnetplan library
 * Adding `ipv6-address-generation` field for NM backend
 * Adding WiFi flags for `bssid`/`band`/`channel`

An not yet merged, but will be included:
 * Adding support for SR-IOV network devices

List of commits already merged and ready for 0.99: https://paste.ubuntu.com/p/33QPMVF4fy/
And one of the big PRs still in review:
 * https://github.com/CanonicalLtd/netplan/pull/129

All the changes are completely backward-compatible and users should not
notice any behavior changes if not using any of the new features.

So far we have done some test-builds and test-installations locally of
the packages without any trouble, running autopkgtests on those as well.
When preparing 0.99 we will of course first make sure the package still
builds correctly and autopkgtests look good. We will also do upgrade
testing and provide the results here.

Thank you!

** Affects: netplan
     Importance: Critical
         Status: New

** Affects: netplan.io (Ubuntu)
     Importance: Critical
     Assignee: Łukasz Zemczak (sil2100)
         Status: New

** Also affects: netplan.io (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: netplan.io (Ubuntu)
   Importance: Undecided => Critical

** Changed in: netplan.io (Ubuntu)
     Assignee: (unassigned) => Łukasz Zemczak (sil2100)

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https://bugs.launchpad.net/bugs/1871825

Title:
  [FFe] Update to netplan.io 0.99

Status in netplan:
  New
Status in netplan.io package in Ubuntu:
  New

Bug description:
  [Freeze Exception Rationale]

  We would like to request a Feature Freeze exception for the new
  netplan 0.99 as this release will be carrying important roadmap
  features targeted for 20.04. Everything got drastically delayed due to
  not having a full-time netplan maintainer for most part of the cycle,
  but the features we want to deliver are still considered important. We
  are well aware of how late it is in the cycle, and in normal
  circumstances we would not request such an exception, but releasing
  the new netplan version will also unblock some of the other teams.
  Notably the generation of libnetplan will unblock other feature
  requests in packages like NetworkManager for uc20.

  Please note that this is a preemptive FFe as 0.99 is not yet ready to
  be uploaded (as we are waiting for final schema approvals and
  reviews).

  The most notable changes (besides usual bug-fixes) incoming in 0.99:
   * Adding `phase2` keyword to `auth` section
   * Allowing `critical` to be used without `dhcp4`/`dhcp6` enabled
   * Support for GSM modems in the NetworkManager backend (with the `modems` keyword) 
   * Adding `emit-lldp` option for networkd backend
   * Split out the netplan parser into a separate libnetplan library
   * Adding `ipv6-address-generation` field for NM backend
   * Adding WiFi flags for `bssid`/`band`/`channel`

  An not yet merged, but will be included:
   * Adding support for SR-IOV network devices

  List of commits already merged and ready for 0.99: https://paste.ubuntu.com/p/33QPMVF4fy/
  And one of the big PRs still in review:
   * https://github.com/CanonicalLtd/netplan/pull/129

  All the changes are completely backward-compatible and users should
  not notice any behavior changes if not using any of the new features.

  So far we have done some test-builds and test-installations locally of
  the packages without any trouble, running autopkgtests on those as
  well. When preparing 0.99 we will of course first make sure the
  package still builds correctly and autopkgtests look good. We will
  also do upgrade testing and provide the results here.

  Thank you!

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