[Bug 1930455] Re: Upgrade from bionic-train to bionic-ussuri fails for cinder due to sys-kernel-config.mount not existing in unprivileged container

[Billy Olsen]

*** This bug is a duplicate of bug 1916715 ***
    https://bugs.launchpad.net/bugs/1916715

I'm marking this as a duplicate of bug #1916715 per previous comment.

** Also affects: python-rtslib-fb (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: charm-cinder
       Status: New => Invalid

** This bug has been marked a duplicate of bug 1916715
   fails on install due to systemd-service/sysv-service mismatch and lack of mkdir

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https://bugs.launchpad.net/bugs/1930455

Title:
  Upgrade from bionic-train to bionic-ussuri fails for cinder due to
  sys-kernel-config.mount not existing in unprivileged container

Status in OpenStack cinder charm:
  Invalid
Status in python-rtslib-fb package in Ubuntu:
  New

Bug description:
  While upgrading cinder with openstack-origin=cloud:bionic-ussuri,
  after upgrading from bionic:distro, bionic-rocky, bionic-stein,
  bionic-train, I've run into an issue with the upgrade/install of the
  package python3-rtslib-fb.  The configure script of the package tries
  to start the service rtslib-fb-targetctl, which has a "Requires=sys-
  kernel-config.mount" in it's service definition.

  This mount is not present in the cinder container.

  Looking at some related bug: https://bugs.launchpad.net/ubuntu/+source
  /python-rtslib-fb/+bug/1916715

  It seems that the module configfs is needed for this mountpoint to
  exist.

  My container's kernel is 4.15.0-76-generic.

  cinder-1: 18:20:59 INFO unit.cinder/1.juju-log [cinder] Performing OpenStack upgrade to ussuri.
  unit-cinder-1: 18:20:59 INFO unit.cinder/1.juju-log DEPRECATION WARNING: Function configure_installation_source is being removed on/around 2017-07 : use charmhelpers.fetch.add_source() instead.
  unit-cinder-1: 18:21:00 INFO unit.cinder/1.juju-log Installing [] with options: ['--option=Dpkg::Options::=--force-confold']
  unit-cinder-1: 18:21:00 DEBUG unit.cinder/1.config-changed Reading package lists...
  unit-cinder-1: 18:21:00 DEBUG unit.cinder/1.config-changed Building dependency tree...
  unit-cinder-1: 18:21:00 DEBUG unit.cinder/1.config-changed Reading state information...
  unit-cinder-1: 18:21:00 DEBUG unit.cinder/1.config-changed The following packages were automatically installed and are no longer required:
  unit-cinder-1: 18:21:00 DEBUG unit.cinder/1.config-changed   python-pyudev python-rtslib-fb python3-ceilometerclient python3-contextlib2
  unit-cinder-1: 18:21:00 DEBUG unit.cinder/1.config-changed Use 'apt autoremove' to remove them.
  unit-cinder-1: 18:21:00 DEBUG unit.cinder/1.config-changed 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
  unit-cinder-1: 18:21:00 DEBUG unit.cinder/1.config-changed 1 not fully installed or removed.
  unit-cinder-1: 18:21:00 DEBUG unit.cinder/1.config-changed After this operation, 0 B of additional disk space will be used.
  unit-cinder-1: 18:21:00 DEBUG unit.cinder/1.config-changed Setting up python3-rtslib-fb (2.1.66-3.2~cloud0) ...
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed A dependency job for rtslib-fb-targetctl.service failed. See 'journalctl -xe' for details.
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed invoke-rc.d: initscript rtslib-fb-targetctl, action "start" failed.
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed ● rtslib-fb-targetctl.service - Restore LIO kernel target configuration
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed    Loaded: loaded (/lib/systemd/system/rtslib-fb-targetctl.service; disabled; vendor preset: enabled)
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed    Active: inactive (dead)
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed 
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed Jun 01 18:15:17 juju-bf8473-19-lxd-2 systemd[1]: Dependency failed for Restore LIO kernel target configuration.
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed Jun 01 18:15:17 juju-bf8473-19-lxd-2 systemd[1]: rtslib-fb-targetctl.service: Job rtslib-fb-targetctl.service/start failed with result 'dependency'.
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed Jun 01 18:15:30 juju-bf8473-19-lxd-2 systemd[1]: Dependency failed for Restore LIO kernel target configuration.
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed Jun 01 18:15:30 juju-bf8473-19-lxd-2 systemd[1]: rtslib-fb-targetctl.service: Job rtslib-fb-targetctl.service/start failed with result 'dependency'.
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed Jun 01 18:15:43 juju-bf8473-19-lxd-2 systemd[1]: Dependency failed for Restore LIO kernel target configuration.
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed Jun 01 18:15:43 juju-bf8473-19-lxd-2 systemd[1]: rtslib-fb-targetctl.service: Job rtslib-fb-targetctl.service/start failed with result 'dependency'.
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed Jun 01 18:15:55 juju-bf8473-19-lxd-2 systemd[1]: Dependency failed for Restore LIO kernel target configuration.
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed Jun 01 18:15:55 juju-bf8473-19-lxd-2 systemd[1]: rtslib-fb-targetctl.service: Job rtslib-fb-targetctl.service/start failed with result 'dependency'.
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed Jun 01 18:21:01 juju-bf8473-19-lxd-2 systemd[1]: Dependency failed for Restore LIO kernel target configuration.
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed Jun 01 18:21:01 juju-bf8473-19-lxd-2 systemd[1]: rtslib-fb-targetctl.service: Job rtslib-fb-targetctl.service/start failed with result 'dependency'.
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed dpkg: error processing package python3-rtslib-fb (--configure):
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed  installed python3-rtslib-fb package post-installation script subprocess returned error exit status 1
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed Errors were encountered while processing:
  unit-cinder-1: 18:21:01 DEBUG unit.cinder/1.config-changed  python3-rtslib-fb
  unit-cinder-1: 18:21:02 WARNING unit.cinder/1.config-changed E: Sub-process /usr/bin/dpkg returned an error code (1)

  
  I tried modprobing configfs on the metal, then restarting the container, but I am still seeing failure to mount, permission denied.

  ubuntu at juju-bf8473-18-lxd-2:/sys/kernel/config$ sudo systemctl start sys-kernel-config.mount
  Job for sys-kernel-config.mount failed.
  See "systemctl status sys-kernel-config.mount" and "journalctl -xe" for details.
  ubuntu at juju-bf8473-18-lxd-2:/sys/kernel/config$ journalctl -xe
  -- The result is RESULT.
  Jun 01 18:31:45 juju-bf8473-18-lxd-2 systemd[1]: Dependency failed for Restore LIO kernel target configuration.
  -- Subject: Unit rtslib-fb-targetctl.service has failed
  -- Defined-By: systemd
  -- Support: http://www.ubuntu.com/support
  -- 
  -- Unit rtslib-fb-targetctl.service has failed.
  -- 
  -- The result is RESULT.
  Jun 01 18:31:45 juju-bf8473-18-lxd-2 systemd[1]: rtslib-fb-targetctl.service: Job rtslib-fb-targetctl.service/start failed with result 'dependency'.
  Jun 01 18:31:49 juju-bf8473-18-lxd-2 sudo[4421]:   ubuntu : TTY=pts/0 ; PWD=/sys/kernel/config ; USER=root ; COMMAND=/bin/systemctl start sys-kernel-config.mount
  Jun 01 18:31:49 juju-bf8473-18-lxd-2 sudo[4421]: pam_unix(sudo:session): session opened for user root by ubuntu(uid=0)
  Jun 01 18:31:49 juju-bf8473-18-lxd-2 systemd[1]: sys-kernel-config.mount: Failed to reset devices.list: Operation not permitted
  Jun 01 18:31:49 juju-bf8473-18-lxd-2 systemd[1]: Mounting Kernel Configuration File System...
  -- Subject: Unit sys-kernel-config.mount has begun start-up
  -- Defined-By: systemd
  -- Support: http://www.ubuntu.com/support
  -- 
  -- Unit sys-kernel-config.mount has begun starting up.
  Jun 01 18:31:49 juju-bf8473-18-lxd-2 mount[4426]: mount: /sys/kernel/config: permission denied.
  Jun 01 18:31:49 juju-bf8473-18-lxd-2 systemd[1]: sys-kernel-config.mount: Mount process exited, code=exited status=32
  Jun 01 18:31:49 juju-bf8473-18-lxd-2 systemd[1]: sys-kernel-config.mount: Failed with result 'exit-code'.
  Jun 01 18:31:49 juju-bf8473-18-lxd-2 systemd[1]: Failed to mount Kernel Configuration File System.
  -- Subject: Unit sys-kernel-config.mount has failed
  -- Defined-By: systemd
  -- Support: http://www.ubuntu.com/support
  -- 
  -- Unit sys-kernel-config.mount has failed.
  -- 
  -- The result is RESULT.
  Jun 01 18:31:49 juju-bf8473-18-lxd-2 sudo[4421]: pam_unix(sudo:session): session closed for user root

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