Commits on Dec 14, 2023

1. feat(ci): dynamic test scheduler / balancer …

   This commit adds an automatic scheduler for running busted tests.  It
   replaces the static, shell script based scheduler by a mechanism that
   distributes the load onto a number of runners.  Each runner gets to
   work on a portion of the tests that need to be run.  The scheduler
   uses historic run time information to distribute the work evenly
   across runners, with the goal of making them all run for the same
   amount of time.  With the 7 runners configured in the PR, the overall
   time it takes to run tests is reduced from around 30 minutes to around
   11 minutes.
   
   Previously, the scheduling for tests was defined by what the
   run_tests.sh shell script did.  This has now changed so that the new
   JSON file `test_suites.json` is instead used to define the tests that
   need to run.  Like before, each of the test suites can have its own
   set of environment variables and test exclusions.
   
   The test runner has been rewritten in Javascript in order to make it
   easier to interface with the declarative configuration file and to
   facilitate reporting and interfacing with busted.  It resides in the
   https://github.com/Kong/gateway-test-scheduler repository and
   provides its functionality through custom GitHub Actions.
   
   A couple of tests had to be changed to isolate them from other tests
   better.  As the tests are no longer run in identical order every time,
   it has become more important that each test performs any required
   cleanup before it runs.

   

   hanshuebner authored and locao committed Dec 14, 2023
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