yahoo-eng-team team mailing list archive

[Scott Moser <ssmoser2+ubuntu@xxxxxxxxx>]

Public bug reported:

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)

** Affects: cloud-init
     Importance: Medium
         Status: Confirmed

** Affects: cloud-init (Ubuntu)
     Importance: Medium
         Status: Confirmed


** Tags: amd64 apport-bug cosmic uec-images

** Also affects: cloud-init
   Importance: Undecided
       Status: New

** Changed in: cloud-init
       Status: New => Confirmed

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

** Changed in: cloud-init
   Importance: Undecided => Medium

** Changed in: cloud-init (Ubuntu)
   Importance: Undecided => Medium

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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:
  Confirmed
Status in cloud-init package in Ubuntu:
  Confirmed

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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