MPU Meeting Tuesday 21st October 2014

Virtual DICE

The images have been fixed. Chris just needs to put some posters up in the student labs now.


The unused "once" and "required" tag lists have been removed, all resources are now associated with the "units" list instead. This avoids unnecessary duplication of information and it's a lot less confusing. Alastair has begun writing some documentation, there will be a cookbook page on the wiki.


The main SL7 package lists have now been done so it is now possible to install a SL7 machine directly without going via EL7. Several scripts (e.g. lcfg-mkbootpkg and buildinstallroot) have been updated to get the default platform details from SysInfo rather than examining the /etc/LCFG-RELEASE file.

The logging of authentication events has been tweaked so that locally it only goes to the auth log and journald, previously it was also being copied to the local syslog file. For journald logging we need to decide on how much data we wish to retain, this can be done based on either total size or the percentage of the partition used. A nice feature of journald is that users get direct access to their own information. Alastair will blog about the details.

Alastair looked at autofs and whether this could work with our current amd configuration. It appears that the configuration in LDAP is a mess, this could cause us problems in EL7. We will raise this at the Operational Meeting.

Alastair has begun work on an LCFG component for managing dconf settings. Could we manage gdm entirely via this component? Or will it need a new one creating? Which features of the old kdm configuration will we need to port? In SL6 we rely on a startup script to set permissions on certain devices for the current console user, we could probably do that with udev instead.

Stephen has been working on an LCFG component to manage polkit ACLs. He is planning to add support to the component for translating between the pam_access style configuration format and polkit so that we can continue to use the nice simple style in resources (such as auth.users).

Stephen noted that we need to get the PkgForge client working on EL7.

Miscellaneous Development

Chris has written up some project proposals.


KVM server reboots
More reboots have been done, this just leaves jubilee and hammersmith

NX servers
The new NX servers are ready to be deployed.

The current nx.inf ran out of disk space and needed to be rebooted.

apacheconf sensible
This configuration has been applied to

This Week

  • Alastair
    • systemd project
      • Consider how components will work with systemd
      • Continue work on documentation - guidance for other COs on how to use
    • EL7 project
      • continue considering dependencies between components and ordering
      • what sort of level of space is required by systemd journald logging (for desktop /var sizing)
        • (By default journald logs to /run/log. Have to mkdir /var/log/journal to keep data). Have enabled on one machine
        • identify default retention policyDefault retention is to use up to 10% of partition. Can use either space or time as a constraint on space. Logs are per user + system, so users can read their own data. Each log file starts at 8MB, so a popular machine will have lots of log data.
        • Blog about journald retention policy - and document how to set...
        • Blog about decision to keep journald and /var/lcfg/log/syslog duplication.
      • check installroot stuff same version across SL6 and EL7
        • and pull out old SL5 stuff
      • Look at pam_systemd module - what does it do?
      • amd is more heavily used than I had imagined. It's used for /group which is commonly used - take to services unit
      • Complete dconf component and ship
        • kdm component has option to forcerestart even if someone is logged in (used for exam mode)
      • Look at what else we used kdm component for
        • setting and clearing ownership of /dev devices on login/logout (for devices in labs) - might be a better solution using udev rules?
        • enable/disable Xdmcp (never used?)
        • Set kdm theme (for background image etc)
        • enable/disable shutdown at login window (for podium machines)
      • Look at whether we need anything better than existing network component for desktops
    • Upgrade jubilee to 6.5 and install disks and additional memory - waiting for additional memory
    • RT 65774 - try two identical monitors on my machine
    • Need to remove default bridge from kvmtool create
    • Think about disk partition policy
    • Think about metropolitan

  • Chris
    • Virtual DICE
      • publish poster
    • EL7
      • Look at gnome themes
      • produce a report on EL7 progress to main systems blog
    • url shortener (once gdm solved)
    • Projects EL7 blog - start populating
    • Create Project entries - for KVM refinement project
    • Experiment rename br0 as br202 on circle
    • Think about disk partition policy
    • Think about metropolitan

  • Stephen
    • LCFG client refactor stage 1
      • schedule debrief meeting
    • EL7
      • Continue thinking about functionality
      • Start EL7 component writing FAQ
      • Continue SL7 re-base
      • PkgForge for SL7
    • Think about PD - Interested in ZeroMQ
    • RT 68269
    • Deploy northern as staff.nx (first open up holes and test from home) and piccadilly as student.nx
    • Have the SL5 RPMs archived (release space on sauce)
    • Think about disk partition policy
    • Think about metropolitan

-- AlastairScobie - 21 Oct 2014

Topic revision: r7 - 05 Dec 2014 - 17:14:44 - AlastairScobie
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