Linux Working Group

Meeting Date

• TEAMS: 2021--7-13

Invitees - Attendees

• Dave, Adrian, Anthony, Clayton, Devon, Fraser, Guoxiang, Lori, Nathan, Nick

Review and accept previous meeting minutes.

Proposed Agenda Items

July 17 Power outage

Monitoring

• Icinga will be up
  • Icinga LXC container moved to M3 server room (Devon and Anthony) which will have power and HVac
• Server Room Environmental Monitoring
• CSCF Private Cloud Systems
• CS general-use Systems

Power information

• M3 will have power
• DC building will not have power, all systems will need to be turned off.
• MC 3015 will have two 208v/30a circuits.
• MC Labs to be powered off. - Dave will make sure room panel breakers are off before start of shutdown and back on once shutdown is over.

• Authentication Services will be up
  • M3-3101 vmserver216.cscf.uwaterloo.ca means services will be up.
  • keeping mc3015 vmserver214.cscf.uwaterloo.ca up would be good.
  • Ubikey services will stay up given this power setup.

• DFSc Services
  • as long as mc-3015-422 and supporting networking (hs100) is powered, service will be up.
  • power off *-421 systems, good to reconfigure layer 1 networking
  • Services bridges will also stay up:
    • Samba
    • Ganesha-NFS

• nexus -samba services - mc-3015-202
  • good to keep but not necessary.

• ubuntu1804*.cs.uwaterloo.ca and ubuntu2004*.cs.uwaterloo.ca will be up at reduced capacity (number of servers).
  • Guoxiang to remove and add any ubuntu*.cs.uwaterloo.ca host references from DNS round-robin setups starting Thursday evening.

• Web services - mc-3015-202
  • Nathan and Lori to make sure all HAProxy systems have master service transferred to M3 systems.

• SQL services
  • mysql - M3 is already master
    • mysql-archive is single instance in DC. Fraser will manage the down and up of service.
  • postgresql (OATdb)
    • will stay up, Monitoring by Steve (MFCF) and ISaac (CSCF)

• DataSCI: will be down
  • Services and Systems down and up will be managed by Lori

• Ugster: will be down
  • Services and Systems down and up will be managed by Fraser

• vault
  • will stay up, monitored by Nathan & Lori

System and Services Down and Up Management

• linux.cscf will be up during as it is in M3
• systems providing no user-facing services can be powered off anytime after 17:00 (5pm) on Friday
• systems providing user-facing services will not be powered off before 05:00 (5am) and no later 06:30 (6am) than on Saturday morning.
• DC 3558 shutdown
  • power off: as above
  • power on: Saturday night, provided no hardware failures
• Keeping as many *-20{1,2,3,5,411,422} up as possible
• Dave will be on site during first 2 hours of shutdown and a 2-? hour and end of shutdown.
• Windows will be managed by Clayton. Down and up times still to be announced.
• Mac's host and services will be Devon. Devon to power down, Dave to power up - remember that this includes trashcan unit.

Netplan configuration for IPv6 Internet ports:

• Note when setting up a host that has Internet addressing, please also include netplan configuration:
  • dhcp6: false
  • accept-ra: false

Should spelling packages "hunspell hunspell-en-ca" be included on all CSCF standard images or just general-use and web server systems?