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Much like the whims of a wild river, unexpected events can cause internet services to fail in catastrophic ways. Civil engineers tame rivers, like the Mississippi, by employing a variety of methods to protect against catastrophe -- one of these methods involves building locks to quickly redirect the flow of water to another channel. Similarly, in the event of an internet service catastrophy, f-lock will block flow into the failed service.


F-lock requires a couple of moving parts --sigh.

  • Amazon's Route53
  • Apex domain access
  • 2 or more independent platforms
  • Your application
  • Desire for availability




$ export AWS_ACCESS=key
$ export AWS_SECRET=secret
$ export AWS_API_V=2012-02-29
$ export CLOUD=primary
$ bin/f-lock app