135 lines
4.2 KiB
Bash
Executable file
135 lines
4.2 KiB
Bash
Executable file
#!/bin/bash
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# Version: 0.4.0
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# Copyright (c) 2005-2022:
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# Darren 'Tadgy' Austin <darren (at) afterdark.org.uk>
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# Licensed under the terms of the GNU General Public License version 3.
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SERVICE_EXEC="%BUILD_PREFIX%/sbin/glusterd"
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SERVICE_ARGS=('-l' '$SERVICE_LOGFILE' '-L' '$SERVICE_LOGLEVEL')
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SERVICE_PIDFILE="/run/glusterd.pid"
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SERVICE_LOGFILE="/var/log/glusterfs/glusterd.log"
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SERVICE_LOGLEVEL="WARNING"
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# Allow configuration in /etc/default to override.
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# Additional available variables:
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# SERVICE_ENVIRONMENT=() # Extra environment passed to $SERVICE_EXEC. Must be an array.
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# SERVICE_EXTRA_ARGS=() # Extra arguments passed to $SERVICE_EXEC. Must be an array.
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# SERVICE_LOGFILE="" # Logfile to use for $SERVICE_EXEC. Default: /var/log/glusterfs/glusterd.log.
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# SERVICE_LOGLEVEL="" # Level to use for logging by $SERVICE_EXEC. Default: WARNING.
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# SLAY_DELAY="" # Delay between the SIGTERM and SIGKILL on a 'stop'. Default: 2s.
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# RESTART_DELAY="" # Delay between stopping and starting on a 'restart'. Default: 2s.
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# shellcheck disable=SC1090
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[[ -e "/etc/default/${0##*rc.}" ]] && { source "/etc/default/${0##*rc.}" || return 1 2>/dev/null || exit 1; }
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# Now all possible changes to variables in SERVICE_ARGS are complete, expand out the embedded variables.
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eval "$(declare -p SERVICE_ARGS | sed -re 's/\\\$/$/g')"
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error() {
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printf "%s: %s\\n" "${BASH_SOURCE[0]##*/}" "$*" >&2
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}
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checkconfigured() {
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# This function can be used to perform any pre-start tests; hopfully to insure the daemon
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# can start correctly, before actually trying to start it. A return value of 0 means the
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# tests were passed and the daemon should be started. Any other value prevents the
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# daemon from being started, and an error message will be emitted.
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return 0
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}
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checkstatus() {
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# shellcheck disable=SC2155
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local RUNPIDS="$({ pgrep -f "$SERVICE_EXEC"; pgrep -F "$SERVICE_PIDFILE" 2>/dev/null; } | sort -u )"
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if [[ -n "$RUNPIDS" ]]; then
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printf "%s: %s: %s" "${BASH_SOURCE[0]##*/}" "${SERVICE_EXEC##*/}" "running"
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if [[ -n "$SERVICE_PIDFILE" ]]; then
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if [[ ! -e "$SERVICE_PIDFILE" ]]; then
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printf "%s" ", but .pid file does not exist"
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elif ! grep "\<$(<"$SERVICE_PIDFILE")\>" <<<"$RUNPIDS" >/dev/null 2>&1; then
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printf "%s" ", but .pid file is stale"
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fi
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fi
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printf "\\n"
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else
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printf "%s: %s: %s\\n" "${BASH_SOURCE[0]##*/}" "${SERVICE_EXEC##*/}" "stopped"
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return 1
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fi
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return 0
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}
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startdaemon() {
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if [[ ! -e "$SERVICE_EXEC" ]]; then
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error "not found: $SERVICE_EXEC"
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return 2
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elif [[ ! -x "$SERVICE_EXEC" ]]; then
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error "not executable: $SERVICE_EXEC"
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return 2
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elif ! checkconfigured; then
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error "not started - pre-start checks failed"
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return 2
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fi
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# shellcheck disable=SC2048,SC2086
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${SERVICE_ENVIRONMENT:+declare ${SERVICE_ENVIRONMENT[*]};} "$SERVICE_EXEC" ${SERVICE_ARGS[*]} ${SERVICE_EXTRA_ARGS[*]}
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# shellcheck disable=SC2181
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if (( $? != 0 )); then
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error "error starting '${SERVICE_EXEC##*/}'"
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return 2
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else
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return 0
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fi
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}
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stopdaemon() {
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kill -TERM "$(pgrep -f "$SERVICE_EXEC" | tr $'\n' " ")" >/dev/null 2>&1
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[[ -e "$SERVICE_PIDFILE" ]] && {
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sleep 0.5
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kill -TERM "$(<"$SERVICE_PIDFILE")" >/dev/null 2>&1
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}
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sleep "${SLAY_DELAY:-2}"
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checkstatus >/dev/null && {
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error "failed to stop gracefully - slaying"
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kill -KILL "$({ cat "$SERVICE_PIDFILE"; pgrep -f "$SERVICE_EXEC"; } 2>/dev/null | sort -u | tr $'\n' " ")" >/dev/null 2>&1
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}
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return 0
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}
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case "$1" in
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'start')
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if checkstatus >/dev/null; then
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error "${SERVICE_EXEC##*/}: already running"
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printf " %s\\n" "Try: ${BASH_SOURCE[0]} status" >&2
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RET=1
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else
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startdaemon
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RET=$?
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fi
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;;
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'stop')
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if ! checkstatus >/dev/null; then
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error "${SERVICE_EXEC##*/}: not running"
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printf " %s\\n" "Try: ${BASH_SOURCE[0]} status" >&2
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RET=1
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else
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stopdaemon
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RET=$?
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fi
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;;
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'restart')
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checkstatus >/dev/null
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(( $? != 3 )) && {
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stopdaemon >/dev/null 2>&1
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sleep "${RESTART_DELAY:-2}"
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}
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startdaemon
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RET=$?
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;;
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'status')
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checkstatus
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RET=$?
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;;
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*)
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printf "%s\\n" "Usage: ${BASH_SOURCE[0]} <start|stop|restart|status>" >&2
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RET=1
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;;
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esac
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return $RET 2>/dev/null || exit $RET
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