Backport of Ensure signals are passed to commands into release/1.3.x#3555
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Backport
This PR is auto-generated from #3548 to be assessed for backporting due to the inclusion of the label backport/1.3.x.
The below text is copied from the body of the original PR.
Change
/bin/sh -ec "<command>"to/bin/sh -ec "exec <command>". Addingexecensures that<command>is not executed as a child process but replaces the/bin/shprocess. This ensure that<command>receives any signals.Specifically this is an issue when attempting to trap SIGTERMs as part of graceful pod shutdown. Without this change, we weren't receiving any signals because they aren't passed down by
/bin/sh -c.How I've tested this PR
How I expect reviewers to test this PR
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