|
| 1 | +#!/bin/sh |
| 2 | +# |
| 3 | +# nutcracker_control <summary> |
| 4 | +# description: Starts and stops a single nutcracker instance on this system |
| 5 | +# |
| 6 | + |
| 7 | +### BEGIN INIT INFO |
| 8 | +### END INIT INFO |
| 9 | + |
| 10 | +# |
| 11 | +# init.d / servicectl compatibility (openSUSE) |
| 12 | +# |
| 13 | +if [ -f /etc/rc.status ]; then |
| 14 | + . /etc/rc.status |
| 15 | + rc_reset |
| 16 | +fi |
| 17 | + |
| 18 | +# |
| 19 | +# Source function library. |
| 20 | +# |
| 21 | +if [ -f /etc/rc.d/init.d/functions ]; then |
| 22 | + . /etc/rc.d/init.d/functions |
| 23 | +fi |
| 24 | + |
| 25 | +#set -x |
| 26 | +export PS4='+ [`basename ${BASH_SOURCE[0]}`:$LINENO ${FUNCNAME[0]} \D{%F %T} $$ ] ' |
| 27 | + |
| 28 | +MYNAME="${0##*/}" |
| 29 | +CURDIR=$(cd "$(dirname "$0")"; pwd) |
| 30 | +PROG="nutcracker" |
| 31 | +PIDFILE="/var/run/${PROG}.pid" |
| 32 | +LOGFILE="/var/log/${PROG}.log" |
| 33 | +EXEC="${CURDIR}/${PROG}" |
| 34 | +CONFFILE="${CURDIR}/conf/${PROG}.yml" |
| 35 | +ACTION="" |
| 36 | +DAEMON=1 |
| 37 | + |
| 38 | +[ -e /etc/sysconfig/$PROG ] && . /etc/sysconfig/$PROG |
| 39 | + |
| 40 | +usage() { |
| 41 | + cat << USAGE |
| 42 | +Usage: bash ${MYNAME} [-h] [-c CONFIG] [-p PID] -d |
| 43 | + action {start|stop|status|restart|condrestart|try-restart|reload|force-reload} |
| 44 | +
|
| 45 | +Nutcracker control scripts. |
| 46 | +
|
| 47 | +Optional arguments: |
| 48 | + -h, --help show this help message and exit. |
| 49 | + -d run program not in daemon mode(default: ${DAEMON}). |
| 50 | + -c CONFIG ini config file, default: ${CONFFILE} |
| 51 | + -p PID path to pid file, default: ${PIDFILE} |
| 52 | +
|
| 53 | +Require: |
| 54 | + action {start|stop|status|restart|condrestart|try-restart|reload|force-reload} |
| 55 | +
|
| 56 | +USAGE |
| 57 | + |
| 58 | + exit 1 |
| 59 | +} |
| 60 | + |
| 61 | +# |
| 62 | +# Parses command-line options. |
| 63 | +# usage: parse_options "$@" || exit $? |
| 64 | +# |
| 65 | +parse_options() { |
| 66 | + declare -a argv |
| 67 | + |
| 68 | + while [[ $# -gt 0 ]]; do |
| 69 | + case $1 in |
| 70 | + -c) |
| 71 | + CONFFILE="${2}" |
| 72 | + shift 2 |
| 73 | + ;; |
| 74 | + -p|--pid) |
| 75 | + PIDFILE="${2}" |
| 76 | + shift 2 |
| 77 | + ;; |
| 78 | + -h|--help) |
| 79 | + usage |
| 80 | + exit |
| 81 | + ;; |
| 82 | + -d) |
| 83 | + DAEMON=0 |
| 84 | + shift |
| 85 | + ;; |
| 86 | + --) |
| 87 | + shift |
| 88 | + argv=("${argv[@]}" "${@}") |
| 89 | + break |
| 90 | + ;; |
| 91 | + -*) |
| 92 | + echo "command line: unrecognized option $1" >&2 |
| 93 | + return 1 |
| 94 | + ;; |
| 95 | + *) |
| 96 | + argv=("${argv[@]}" "${1}") |
| 97 | + shift |
| 98 | + ;; |
| 99 | + esac |
| 100 | + done |
| 101 | + |
| 102 | + case ${#argv[@]} in |
| 103 | + 1) |
| 104 | + ACTION="${argv[0]}" |
| 105 | + ;; |
| 106 | + 0|*) |
| 107 | + usage 1>&2 |
| 108 | + return 1 |
| 109 | + ;; |
| 110 | + esac |
| 111 | +} |
| 112 | + |
| 113 | +check_program() { |
| 114 | + |
| 115 | + if [ ! -x "$EXEC" ]; then |
| 116 | + echo "Could not find any executable ${PROG}, please check it first." |
| 117 | + exit 1 |
| 118 | + fi |
| 119 | +} |
| 120 | + |
| 121 | +start() { |
| 122 | + check_program |
| 123 | + |
| 124 | + echo -n $"Starting $PROG: " |
| 125 | + # if not running, start it up here, usually something like "daemon $exec" |
| 126 | + if [ x"$DAEMON" == "x0" ]; then |
| 127 | + daemon ${EXEC} -c ${CONFFILE} -p ${PIDFILE} |
| 128 | + else |
| 129 | + daemon ${EXEC} -c ${CONFFILE} -p ${PIDFILE} -d |
| 130 | + fi |
| 131 | + retval=$? |
| 132 | + echo |
| 133 | + #[ $retval -eq 0 ] && touch $lockfile |
| 134 | + return $retval |
| 135 | +} |
| 136 | + |
| 137 | +stop() { |
| 138 | + echo -n $"Stopping $PROG: " |
| 139 | + # stop it here, often "killproc $PROG" |
| 140 | + killproc -p $PIDFILE -d 20 $PROG |
| 141 | + retval=$? |
| 142 | + echo |
| 143 | + #[ $retval -eq 0 ] && rm -f $lockfile |
| 144 | + return $retval |
| 145 | +} |
| 146 | + |
| 147 | +pstatus () { |
| 148 | + if pgrep -f "${EXEC}" >/dev/null; then |
| 149 | + #echo "$PROG" running |
| 150 | + return 0 |
| 151 | + fi |
| 152 | + return 1 |
| 153 | +} |
| 154 | + |
| 155 | +forcestop() { |
| 156 | + echo "Force stopping $PROG" |
| 157 | + pkill $1 -f "${EXEC}" |
| 158 | +} |
| 159 | + |
| 160 | +forcerestart () { |
| 161 | + stop |
| 162 | + try=1 |
| 163 | + sleep 1 |
| 164 | + while pstatus; do |
| 165 | + try=$((try + 1)) |
| 166 | + if [ $try -gt 3 ]; then |
| 167 | + forcestop -9 |
| 168 | + else |
| 169 | + forcestop |
| 170 | + fi |
| 171 | + echo "Waiting for $PROG to die.." |
| 172 | + sleep 5 |
| 173 | + done |
| 174 | + start |
| 175 | +} |
| 176 | + |
| 177 | +restart() { |
| 178 | + forcerestart |
| 179 | +} |
| 180 | + |
| 181 | +reload() { |
| 182 | + restart |
| 183 | +} |
| 184 | + |
| 185 | +force_reload() { |
| 186 | + restart |
| 187 | +} |
| 188 | + |
| 189 | +rh_status() { |
| 190 | + # run checks to determine if the service is running or use generic status |
| 191 | + status -p ${PIDFILE} ${PROG} |
| 192 | +} |
| 193 | + |
| 194 | +rh_status_q() { |
| 195 | + rh_status >/dev/null 2>&1 |
| 196 | +} |
| 197 | + |
| 198 | +################################## main route ################################# |
| 199 | +parse_options "${@}" || usage |
| 200 | + |
| 201 | +case "${ACTION}" in |
| 202 | + start) |
| 203 | + rh_status_q && exit 0 |
| 204 | + ${ACTION} |
| 205 | + ;; |
| 206 | + stop) |
| 207 | + rh_status_q || exit 0 |
| 208 | + ${ACTION} |
| 209 | + pstatus && forcestop -9 |
| 210 | + ;; |
| 211 | + restart) |
| 212 | + ${ACTION} |
| 213 | + ;; |
| 214 | + reload) |
| 215 | + rh_status_q || exit 7 |
| 216 | + ${ACTION} |
| 217 | + ;; |
| 218 | + force-reload) |
| 219 | + force_reload |
| 220 | + ;; |
| 221 | + status) |
| 222 | + rh_status |
| 223 | + ;; |
| 224 | + condrestart|try-restart) |
| 225 | + rh_status_q || exit 0 |
| 226 | + restart |
| 227 | + ;; |
| 228 | + *) |
| 229 | + echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}" |
| 230 | + exit 2 |
| 231 | +esac |
| 232 | +exit $? |
| 233 | + |
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