mirror of
https://github.com/vdsm/virtual-dsm.git
synced 2025-02-24 13:30:02 +08:00
90 lines
2.3 KiB
Bash
90 lines
2.3 KiB
Bash
#!/usr/bin/env bash
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set -Eeuo pipefail
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# Configure QEMU for graceful shutdown
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QEMU_MONPORT=7100
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QEMU_POWERDOWN_TIMEOUT=50
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_QEMU_PID=/run/qemu.pid
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_QEMU_SHUTDOWN_COUNTER=/run/qemu.counter
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rm -f "${_QEMU_PID}"
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rm -f "${_QEMU_SHUTDOWN_COUNTER}"
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_trap(){
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func="$1" ; shift
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for sig ; do
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trap "$func $sig" "$sig"
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done
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}
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_graceful_shutdown() {
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set +e
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[ ! -f "${_QEMU_PID}" ] && return
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[ -f "${_QEMU_SHUTDOWN_COUNTER}" ] && return
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echo && info "Received $1 signal, shutting down..."
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echo 0 > "${_QEMU_SHUTDOWN_COUNTER}"
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# Don't send the powerdown signal because vDSM ignores ACPI signals
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# echo 'system_powerdown' | nc -q 1 -w 1 localhost "${QEMU_MONPORT}" > /dev/null
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# Send shutdown command to guest agent via serial port
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RESPONSE=$(curl -s -m 5 -S http://127.0.0.1:2210/read?command=6 2>&1)
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if [[ ! "${RESPONSE}" =~ "\"success\"" ]] ; then
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echo && error "Could not send shutdown command to the guest ($RESPONSE)"
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# If we cannot shutdown the usual way, fallback to the NMI method
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AGENT="${STORAGE}/${BASE}.agent"
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[ -f "$AGENT" ] && AGENT_VERSION=$(cat "${AGENT}") || AGENT_VERSION=1
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if ((AGENT_VERSION > 1)); then
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# Send a NMI interrupt which will be detected by the kernel
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if ! echo 'nmi' | nc -q 1 -w 1 localhost "${QEMU_MONPORT}" > /dev/null ; then
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AGENT_VERSION=0
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fi
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fi
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if ((AGENT_VERSION < 2)); then
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echo && info "Please update the VirtualDSM Agent to allow for gracefull shutdowns..."
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kill -15 "$(cat "${_QEMU_PID}")"
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pkill -f qemu-system-x86_64 || true
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fi
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fi
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while [ "$(cat ${_QEMU_SHUTDOWN_COUNTER})" -lt "${QEMU_POWERDOWN_TIMEOUT}" ]; do
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# Increase the counter
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echo $(($(cat ${_QEMU_SHUTDOWN_COUNTER})+1)) > ${_QEMU_SHUTDOWN_COUNTER}
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# Try to connect to qemu
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if echo 'info version'| nc -q 1 -w 1 localhost "${QEMU_MONPORT}" >/dev/null 2>&1 ; then
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sleep 1
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#info "Shutting down, waiting... ($(cat ${_QEMU_SHUTDOWN_COUNTER})/${QEMU_POWERDOWN_TIMEOUT})"
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fi
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done
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echo && info "Quitting..."
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echo 'quit' | nc -q 1 -w 1 localhost "${QEMU_MONPORT}" >/dev/null 2>&1 || true
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return
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}
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_trap _graceful_shutdown SIGTERM SIGHUP SIGINT SIGABRT SIGQUIT
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MON_OPTS="-monitor telnet:localhost:${QEMU_MONPORT},server,nowait,nodelay"
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