MPU Meeting Wednesday 11th July 2018

Inventory

The headers for the LCFG profile were only being generated for DICE machines, they will now be done for all systems. There is also now an empty fallback header for new systems so that profiles will successfully compile when first created.

There is a need to deal with unusual kit, e.g. ASUS machines, where the serial number in the order does not match with what is reported by the motherboard. The database schema supports aliases but there is not yet any support for it in the code. For now the issue can be fixed manually but as we are getting more of this kit we will need a better solution.

Virtual Desktop

LCFG Profile Security

UEFI Boot

SL 7.5

All develop machines are now using SL7.5, a few headers and profiles needed to be fixed but nothing major cropped up. The aim is to roll out to all desktops on the evening of Monday 20th August which is after the resits but still gives plenty of time for testing of course material.

Misc Development

Python packages
Stephen has continued to work on updating the Python packages. There is now a separate dice/dice_sl75_scipy.rpms to make the list of packages more manageable.

kdcregister
Stephen did some work for Kenny to fix resource value ordering issues in the MDP layer.

Operational

KVM template
We agreed to remove the sl7-sl7 template which does not work properly.

KB Power down
Suspend all VMs (except Inf Unit which will be shutdown) in good time, Chris will email COs to let them know when this will happen. The libvirt-guests service should be disabled so that systemd does not automatically start all the guests at boot time. We will resume them all manually when we are sure the work is finished.The computing.help service needs to move to the backup host in the Forum.

This Week

  • Alastair
    • Inventory project
      • continue working through TartarusWorkFlow
      • Document clientreport (eg how to add modules)
      • Document order sync code
      • Document hpreport processing script
      • Start work on final report!
      • Consider what else needs done other than docs and tidying and backups
      • Blog something....take dev meeting talks
      • and give details on how Tartarus tables are accessed to Ian D for inclusion in his privileged access discussion paper
      • Look at postgresql replication (do after shipping)
      • Add tartarus info to SwitchToSelfManaged
      • Complete removal of non authenticated access to API and web
      • Need tests for API /orders and need new tests to check for correct authorisation
      • Need to check that LCFG header generation is generating stuff for static self-managed machines (as need for DHCP)
      • Make lcfg header generation live (need to check what will be deleted when we do this - big discrepancy between old inventory and new)
      • Look at user support form - how does that lookup hostname?
      • Produce a python library to provide people with a programmatic equivalent of ii query
      • Look at whether there is an easy library way for Chris to grab the macaddr of a machine given the hostname
    • Schedule MPU meeting to discuss systemd ordering
    • Take a look at RT #78875
    • Look at /etc/hosts - dns issue (IPV6?)
      • work out what we need to fix current problem
    • Circulate info on RH7.3 systemd changes we may wish to consider
    • RT actions (as agreed)
    • Implement change to kvmtool to allow KVMs to be marked as disabled
      • looked at this - looks like the metadata tag isn't passed through libvirt (prior to 4.0.0), so can't be read/written by kvmtool
      • put on activities list to do once upgrade to libvirt-4.0.0
    • Look at Stephen's 'Thoughts on shell components'
    • Look at MPUActivitiesList
    • Start looking at https and computing.help (remove assumption that https means want cosign login)
      • wait on Neil's efforts with EdWeb
    • Chase Alison about LCFG check monitoring ( start doing again )
    • Investigate systemd reboot bug on gaivota and add some more debugging (store tree diff somewhere)
    • Report on this at next ops meeting that have changed journald configuration (MPU report)
    • Discuss with Neil - drupal username collection re GDPR
      • write a script to remove users who haven't used computing.help in, say 30 days (except COs) - and fix the email address issue (currently defaults to umich.edu)
      • Ask George whether this is covered by legitimate business interest.
    • Inventory stuff re GDPR
    • Check with Tim / George about capability for login to student machines - where are we
    • Add %slaac to hulp and lagun after 21/02/18
    • Useful? - a script which checks how fast a machine's console log is growing (eg huge number of dbus problems on hammersmith)
      • suggest to Ian D
    • Blog on projects
    • KVM pcid
      • Created MPUSpectreMeltdown
      • Put detection script somewhere for people to use
      • Which CPU is needed for each group..
Following config worked on 'brent' (hosted on vermelha). We might need to consider whether we want "match='exact'" wrt migrations.
<cpu mode='host-model' match='exact'>
<model fallback='allow'>IvyBridge</model>
<vendor>Intel</vendor>
<feature policy='require' name='pcid' />
</cpu>
    • Look at why kvmtool doesn't work on circle (running libvirt 4.0.0)
    • Read and comment on Stephen's notes on the LCFG security project
    • Remove IBM disk array from stack * First ask RAT whether they might find the array useful
    • Read Chris's blog on ThoughtsOn403
    • Look at moving stuff from the immediate todo back to the main Todo list and then we can prioritise that list

  • Stephen
    • RT actions (as agreed)
    • submit polkit bug to redhat - with Alastair (still exists under 7.3)
    • Produce some text for systemd mount bug (to submit to RH)
    • Take issue of disable per user journald logs on certain servers to OPS
    • Consider PD work for after LCFG client ...
      • looking at Ceph
    • Look at MPUActivitiesList
    • On metropolitan, find fastest baud rate we can drive the real physical consoles. (This so we can decide whether to use physical consoles for KVM servers).
    • Look at where we're using ALL in access.conf
    • Agree with RAT how software package requests are handled - waiting on Graham documenting
    • Finish off NX replacement project (#389)
      • Fix the keyboard mapping issue
      • Roll out

-- AlastairScobie - 11 Jul 2018

Topic revision: r3 - 23 Sep 2019 - 13:33:41 - AlastairScobie
 
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