7047ee9391
what's important: * if task code ran, it exits with 0. this code is regardless of (error, result) * when it exited cleanly, we will get the values from the database * if task timed out, the box code kills it and it has a flag tracking timedOut. we can ignore exit code in this case. * if task code was stopped, box code will send SIGTERM which ideally it will handle and end with 70. * if task code crashed and it caught the exception, it will return 50 * if task code crashed and node nuked us, it will exit with 1 * if task code was killed with some unhandleabe signal, taskworker.sh will return the signal (9=SIGKILL)
49 lines
1.1 KiB
Bash
Executable File
49 lines
1.1 KiB
Bash
Executable File
#!/bin/bash
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set -eu -o pipefail
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if [[ ${EUID} -ne 0 ]]; then
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echo "This script should be run as root." > /dev/stderr
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exit 1
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fi
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if [[ $# -eq 0 ]]; then
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echo "No arguments supplied"
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exit 1
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fi
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if [[ "$1" == "--check" ]]; then
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echo "OK"
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exit 0
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fi
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function killtree() {
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local pid=$1
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for cpid in $(pgrep -P "$pid"); do
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killtree "${cpid}" || true
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done
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echo "kill-child: killing $pid"
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kill -SIGTERM "${pid}" 2>/dev/null || true
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sleep 1
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kill -SIGKILL "${pid}" 2>/dev/null || true
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}
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readonly target_pid="$1"
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readonly expected_parent_pid="$2"
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readonly target_actual_parent_pid=$(ps -o ppid= -p "${target_pid}" 2>/dev/null | tr -d ' ')
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if [[ -z "${target_actual_parent_pid}" ]]; then
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echo "kill-child: target PID ${target_pid} does not exist."
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exit 1
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fi
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if [[ "${target_actual_parent_pid}" -ne "${expected_parent_pid}" ]]; then
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echo "kill-child: refusing to kill — PID ${target_pid} is not a child of ${expected_parent_pid}."
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exit 1
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fi
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readonly child_cmd=$(ps -o cmd= -p "${target_pid}")
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echo "kill-child: kill PID ${target_pid} (command: ${child_cmd})"
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killtree ${target_pid}
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