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The data center light time synchronisation

Architecture

  • We use 3 nodes per data center that use 2.pool.ntp.org (this pool is IPv6 enabled) as a source
    • Usually this is based on APUs
  • All other nodes use ntp.placeX.ungleich.ch as a time source
  • All nodes have chronyd installed and running
    • ntp seems to be unreliable
    • ntpdate does not exist in alpine linux
    • chrony exists on alpine/debian/devuan/ubuntu

Due to network firewalls, ntp.placeX.ungleich.ch is only reachable from the server network and not for public usage.

Configuration

  • We use the __dcl_ntp cdist type

Updated by Nico Schottelius 3 months ago · 1 revisions