High availability for the trial platform

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Highly available public APIs

Implement http://wiki.bostonlabs.co.uk/w/index.php?title=VRRP_tests_in_mixed_environment#VIP_advertisement_with_Quagga

L2 switch SPOF

The easiest thing to do here would be to add a second L2 switch, trunk it with the one we already use and connect some of the API hosts to it. This way a failure of any of the switches will still leave us with some working API hosts.

TODO: Find out how VIP failover would behave in this situation.

Routing SPOF

Add another router and configure VRRP between them?

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