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Comment: IP ranges

This document is specific to the London RedCentric lab, but should evolve to a more generic setup once we have more labs. For now, there are some hard-coded logic in the wiki as well as the scripts, to make sure we can reproduce at least the one lab we have. Once we have more labs, we'll work to automate that using configuration files, command line options, etc.

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The servers will receive static IP assignments in the 10.50.016.*/2420 range, while the provisioner will work with IPs in the ranges:

  • 10.50.1016.*/2022 to dynamic
  • 10.50.20.*/20 to 22 to dynamic-reserved
  • 10.50.3024.*/20 to 22 to static

The second interface in the provisioner will be in a different sub-net (via VLAN) with fixed IPs (because MrP still can't DHCP) in the range 192.168.2.0/24. This is overly restrictive considering the ranges above, but it's enough for the London data-centre (we won't have more than 250 machines in there).

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You may get two warnings when you log in to Jenkins, which can be corrected on the Global Security screen:

  • Agent to master security subsystem is currently off: Check the box saying "Enable Agent → Master Access Control"
  • Jenkins instance uses deprecated protocols: JNLP3-connect: Uncheck the box "Java Web Start Agent Protocol/3" in "Agent Protocols"

Save the configuration and you should be all set.

Installing the MrP service

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