environment variables and also enables a custom run directory for asterisk (instead of defaulting to /tmp). Patch by: Byron Clark (byronclark) (closes ASTERISK-17810) git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@348698 65c4cc65-6c06-0410-ace0-fbb531ad65f3
215 lines
5.7 KiB
Bash
215 lines
5.7 KiB
Bash
#!/bin/sh
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# vim:textwidth=80:tabstop=4:shiftwidth=4:smartindent:autoindent
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ASTSBINDIR=__ASTERISK_SBIN_DIR__
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ASTVARRUNDIR=__ASTERISK_VARRUN_DIR__
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ASTVARLOGDIR=__ASTERISK_LOG_DIR__
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CLIARGS="$*" # Grab any args passed to safe_asterisk
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TTY=9 # TTY (if you want one) for Asterisk to run on
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CONSOLE=yes # Whether or not you want a console
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#NOTIFY=root@localhost.localdomain # Who to notify about crashes
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NOTIFY=${NOTIFY:-} # Who to notify about crashes
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#EXEC=/path/to/somescript # Run this command if Asterisk crashes
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#LOGFILE=${ASTVARLOGDIR}/safe_asterisk.log # Where to place the normal logfile (disabled if blank)
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SYSLOG=${SYSLOG:-} # Which syslog facility to use (disabled if blank)
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MACHINE=`hostname` # To specify which machine has crashed when getting the mail
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DUMPDROP=${DUMPDROP:-/tmp}
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RUNDIR=${RUNDIR:-/tmp}
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SLEEPSECS=4
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ASTPIDFILE=${ASTVARRUNDIR}/asterisk.pid
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# comment this line out to have this script _not_ kill all mpg123 processes when
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# asterisk exits
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KILLALLMPG123=1
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# run asterisk with this priority
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PRIORITY=0
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# set system filemax on supported OSes if this variable is set
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# SYSMAXFILES=262144
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# Asterisk allows full permissions by default, so set a umask, if you want
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# restricted permissions.
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#UMASK=022
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# set max files open with ulimit. On linux systems, this will be automatically
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# set to the system's maximum files open devided by two, if not set here.
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# MAXFILES=32768
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message() {
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echo "$1" >&2
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if test "x$SYSLOG" != "x" ; then
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logger -p "${SYSLOG}.warn" -t safe_asterisk[$$] "$1"
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fi
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if test "x$LOGFILE" != "x" ; then
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echo "safe_asterisk[$$]: $1" >> "$LOGFILE"
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fi
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}
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# Check if Asterisk is already running. If it is, then bug out, because
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# starting safe_asterisk when Asterisk is running is very bad.
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VERSION=`${ASTSBINDIR}/asterisk -nrx 'core show version'`
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if test "`echo $VERSION | cut -c 1-8`" = "Asterisk" ; then
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message "Asterisk is already running. $0 will exit now."
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exit 1
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fi
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# since we're going to change priority and open files limits, we need to be
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# root. if running asterisk as other users, pass that to asterisk on the command
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# line.
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# if we're not root, fall back to standard everything.
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if test `id -u` != 0 ; then
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echo "Oops. I'm not root. Falling back to standard prio and file max." >&2
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echo "This is NOT suitable for large systems." >&2
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PRIORITY=0
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message "safe_asterisk was started by `id -n` (uid `id -u`)."
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else
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if `uname -s | grep Linux >/dev/null 2>&1`; then
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# maximum number of open files is set to the system maximum divided by two if
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# MAXFILES is not set.
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if test "x$MAXFILES" = "x" ; then
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# just check if file-max is readable
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if test -r /proc/sys/fs/file-max ; then
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MAXFILES=$(( `cat /proc/sys/fs/file-max` / 2 ))
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fi
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fi
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SYSCTL_MAXFILES="fs.file-max"
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elif `uname -s | grep Darwin /dev/null 2>&1`; then
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SYSCTL_MAXFILES="kern.maxfiles"
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fi
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if test "x$SYSMAXFILES" != "x"; then
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if test "x$SYSCTL_MAXFILES" != "x"; then
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sysctl -w $SYSCTL_MAXFILES=$SYSMAXFILES
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fi
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fi
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# set the process's filemax to whatever set above
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ulimit -n $MAXFILES
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if test ! -d ${ASTVARRUNDIR} ; then
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mkdir -p ${ASTVARRUNDIR}
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chmod 770 ${ASTVARRUNDIR}
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fi
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fi
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if test "x$UMASK" != "x"; then
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umask $UMASK
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fi
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#
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# Let Asterisk dump core
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#
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ulimit -c unlimited
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#
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# Don't fork when running "safely"
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#
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ASTARGS=""
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if test "x$TTY" != "x" ; then
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if test -c /dev/tty${TTY} ; then
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TTY=tty${TTY}
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elif test -c /dev/vc/${TTY} ; then
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TTY=vc/${TTY}
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else
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message "Cannot find specified TTY (${TTY})"
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exit 1
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fi
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ASTARGS="${ASTARGS} -vvvg"
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if test "x$CONSOLE" != "xno" ; then
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ASTARGS="${ASTARGS} -c"
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fi
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fi
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if test ! -d "${RUNDIR}" ; then
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message "${RUNDIR} does not exist, creating"
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mkdir -p "${RUNDIR}"
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if test ! -d "${RUNDIR}" ; then
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message "Unable to create ${RUNDIR}"
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exit 1
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fi
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fi
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if test ! -w "${DUMPDROP}" ; then
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message "Cannot write to ${DUMPDROP}"
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exit 1
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fi
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#
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# Don't die if stdout/stderr can't be written to
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#
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trap '' PIPE
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#
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# Run scripts to set any environment variables or do any other system-specific setup needed
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#
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if test -d /etc/asterisk/startup.d ; then
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for script in /etc/asterisk/startup.d/*.sh; do
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if test -r ${script} ; then
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. ${script}
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fi
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done
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fi
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run_asterisk()
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{
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while :; do
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if test "x$TTY" != "x" ; then
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cd "${RUNDIR}"
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stty sane < /dev/${TTY}
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nice -n $PRIORITY ${ASTSBINDIR}/asterisk -f ${CLIARGS} ${ASTARGS} > /dev/${TTY} 2>&1 < /dev/${TTY}
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else
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cd "${RUNDIR}"
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nice -n $PRIORITY ${ASTSBINDIR}/asterisk -f ${CLIARGS} ${ASTARGS}
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fi
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EXITSTATUS=$?
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message "Asterisk ended with exit status $EXITSTATUS"
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if test "x$EXITSTATUS" = "x0" ; then
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# Properly shutdown....
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message "Asterisk shutdown normally."
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exit 0
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elif test "0$EXITSTATUS" -gt "128" ; then
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EXITSIGNAL=$(($EXITSTATUS - 128))
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echo "Asterisk exited on signal $EXITSIGNAL."
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if test "x$NOTIFY" != "x" ; then
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echo "Asterisk on $MACHINE exited on signal $EXITSIGNAL. Might want to take a peek." | \
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mail -s "Asterisk Died" $NOTIFY
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message "Exited on signal $EXITSIGNAL"
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fi
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if test "x$EXEC" != "x" ; then
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$EXEC
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fi
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PID=`cat ${ASTPIDFILE}`
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DATE=`date "+%Y-%m-%dT%H:%M:%S%z"`
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if test -f ${RUNDIR}/core.${PID} ; then
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mv ${RUNDIR}/core.${PID} ${DUMPDROP}/core.`hostname`-$DATE &
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elif test -f ${RUNDIR}/core ; then
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mv ${RUNDIR}/core ${DUMPDROP}/core.`hostname`-$DATE &
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fi
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else
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message "Asterisk died with code $EXITSTATUS."
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PID=`cat ${ASTPIDFILE}`
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DATE=`date "+%Y-%m-%dT%H:%M:%S%z"`
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if test -f ${RUNDIR}/core.${PID} ; then
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mv ${RUNDIR}/core.${PID} ${DUMPDROP}/core.`hostname`-$DATE &
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elif test -f ${RUNDIR}/core ; then
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mv ${RUNDIR}/core ${DUMPDROP}/core.`hostname`-$DATE &
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fi
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fi
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message "Automatically restarting Asterisk."
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sleep $SLEEPSECS
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if test "0$KILLALLMPG123" -gt "0" ; then
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pkill -9 mpg123
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fi
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done
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}
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run_asterisk &
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