refactor(cmd): use resty.signal for process signaling #11621
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There's a large refactor of this module in the pipeline, and renaming from 'kill' to 'process' makes the API more sensible.
This is another name-only change ahead of some larger refactoring of the kong.cmd.utils.process module.
This refactors kong.cmd.utils.process to use the resty.signal library for sending signals instead of dropping to a shell. This comes with improvements (albeit minor) to performance and security.
hanshuebner
changed the title
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I'm reverting this to draft until we can also confirm that the |
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This PR is marked as stale because it has been open for 14 days with no activity. |
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Primary improvements:
os.execute()for sending signalsSome months ago I needed to look over the code in
kong/cmd/utils/kill.luaand thought to myself "we can do better than os.execute() here." At long last, here are the improvements that stemmed from that thought.Along the way I renamed the file to
kong/cmd/utils/process.luaand changed the name of theis_running()function toexists()for aesthetic reasons. This and the other API changes to the file make the PR somewhat large, but these changes were done in separate commits, so review commit-by-commit if you want to have an easier read-through of the changes.There was a flaky test in
spec/02-integration/01-helpers/03-http_mock_spec.luathat was giving me trouble. It was actually related to this problem domain (waiting for a pidfile to exist and contain a PID), so I fixed it here as well.Re-do #11382 without squashing, merge after #11620