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[Scott Moser <ssmoser2+ubuntu@xxxxxxxxx>]

This bug was fixed in the package cloud-init - 18.4-0ubuntu1
---------------
  
cloud-init (18.4-0ubuntu1) cosmic; urgency=medium
    
  * New upstream release.
    - release 18.4 (LP: #1795741)
    - tests: allow skipping an entire cloud_test without running.
    - tests: disable lxd tests on cosmic
    - cii-tests: use unittest2.SkipTest in ntp_chrony due to new deps
    - lxd: adjust to snap installed lxd. 
    - docs: surface experimental doc in instance-data.json
    - tests: fix ec2 integration tests. process meta_data instead of meta-data
    - Add support for Infiniband network interfaces (IPoIB). [Mark Goddard]
    - cli: add cloud-init query subcommand to query instance metadata
    - tools/tox-venv: update for new features.
    - pylint: ignore warning assignment-from-no-return for _write_network
    - stages: Fix bug causing datasource to have incorrect sys_cfg.
      (LP: #1787459)
    - Remove dead-code _write_network distro implementations.
    - net_util: ensure static configs have netmask in translate_network result
      [Thomas Berger] (LP: #1792454)
    - Fall back to root:root on syslog permissions if other options fail.
      [Robert Schweikert]
    - tests: Add mock for util.get_hostname. [Robert Schweikert] (LP: #1792799)

 -- Chad Smith <chad.smith@xxxxxxxxxxxxx>  Tue, 02 Oct 2018 19:55:23
-0600


** Changed in: cloud-init (Ubuntu)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1787459

Title:
  datasource.sys_cfg gets different values in local stage and after.

Status in cloud-init:
  Fix Released
Status in cloud-init package in Ubuntu:
  Fix Released

Bug description:
  When a datasource is instantiated it is passed in Init.cfg as the 'sys_cfg'.
  But then when 'distro' property is referenced, it has the side effect
  of:
              system_config = self._extract_cfg('system')

              if self.datasource is not NULL_DATA_SOURCE:
                  self.datasource.distro = self._distro
                  self.datasource.sys_cfg = system_config

  
  Here we see the problem demonstrated.

  root@c1:~# cat show-syscfg-keys
  #!/usr/bin/python3
  from cloudinit.stages import _pkl_load;
  print(_pkl_load("/var/lib/cloud/instance/obj.pkl").sys_cfg.keys())

  root@c1:~# cloud-init clean --logs
  root@c1:~# cloud-init init --local
  Cloud-init v. 18.3-18-g3cee0bf8-0ubuntu1 running 'init-local' at Thu, 16 Aug 2018 18:08:00 +0000. Up 574.00 seconds.

  root@c1:~# python3 show-syscfg-keys
  dict_keys(['datasource_list', '_log', 'log_cfgs', 'output', 'users', 'disable_root', 'preserve_hostname', 'cloud_init_modules', 'cloud_config_modules', 'cloud_final_modules', 'def_log_file', 'syslog_fix_perms', 'vendor_data'])

  root@c1:~#
  root@c1:~#
  root@c1:~# cloud-init init >/dev/null 2>&1
  Cloud-init v. 18.3-18-g3cee0bf8-0ubuntu1 running 'init' at Thu, 16 Aug 2018 18:08:11 +0000. Up 585.00 seconds.
  ...

  root@c1:~# python3 show-syscfg-keys
  dict_keys(['default_user', 'ntp_client', 'paths', 'package_mirrors', 'ssh_svcname', 'network'])

  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: cloud-init 18.3-18-g3cee0bf8-0ubuntu1
  ProcVersionSignature: Ubuntu 4.17.0-6.7-generic 4.17.9
  Uname: Linux 4.17.0-6-generic x86_64
  ApportVersion: 2.20.10-0ubuntu7
  Architecture: amd64
  CloudName: LXD
  Date: Thu Aug 16 18:02:03 2018
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=C.UTF-8
  SourcePackage: cloud-init
  UpgradeStatus: No upgrade log present (probably fresh install)

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