More flexible signal propagation #15
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Add a few more configuration options around signal handling: - allow specifying the "stop signal" to pass to the child process, in case the child does not happen to handle SIGTERM. - allow suppressing the exit code of the child process to 0 if the child does not gracefully exit when being stopped, but the caller needs that to happen (typically the case for k8s jobs). Since we happen to extend configurations, also allow enabling logging with timestamps, which had been set to off. All configurations are optional and backwards compatible.
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We were unconditionally suppressing child process exit codes in case KUBEXIT_SUPPRESS_STOPPED_EXITCODE was set. Ensure to only change the exit code if stopping the child from kubexit.
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Add a few more configuration options around signal handling:
case the child does not happen to handle SIGTERM.
does not gracefully exit when being stopped, but the caller needs that
to happen (typically the case for k8s jobs).
Since we happen to extend configurations, also allow enabling logging
with timestamps, which had been set to off.
All configurations are optional and backwards compatible.