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alpha-quadrant/dev-java/nexus/files/nexus.init

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#! /bin/sh
DEF_APP_NAME="nexus"
DEF_APP_LONG_NAME="Nexus Wrapper Sample Application"
# Application
APP_NAME="nexus-webapp"
APP_LONG_NAME="Sonatype Nexus Repository Manager"
# Wrapper
WRAPPER_CMD="/usr/share/nexus/bin/jsw/linux-x86-64/wrapper"
WRAPPER_CONF="/etc/nexus/wrapper.conf"
# Priority at which to run the wrapper. See "man nice" for valid priorities.
# nice is only used if a priority is specified.
PRIORITY=
# Location of the pid file.
PIDDIR="/var/run/nexus"
# If uncommented, causes the Wrapper to be shutdown using an anchor file.
# When launched with the 'start' command, it will also ignore all INT and
# TERM signals.
#IGNORE_SIGNALS=true
# If specified, the Wrapper will be run as the specified user.
# IMPORTANT - Make sure that the user has the required privileges to write
# the PID file and wrapper.log files. Failure to be able to write the log
# file will cause the Wrapper to exit without any way to write out an error
# message.
# NOTE - This will set the user which is used to run the Wrapper as well as
# the JVM and is not useful in situations where a privileged resource or
# port needs to be allocated prior to the user being changed.
RUN_AS_USER=nexus
# The following two lines are used by the chkconfig command. Change as is
# appropriate for your application. They should remain commented.
# chkconfig: 2345 20 80
# description: Test Wrapper Sample Application
# Do not modify anything beyond this point
#-----------------------------------------------------------------------------
# Get the fully qualified path to the script
case $0 in
/*)
SCRIPT="$0"
;;
*)
PWD=`pwd`
SCRIPT="$PWD/$0"
;;
esac
# Resolve the true real path without any sym links.
CHANGED=true
while [ "X$CHANGED" != "X" ]
do
# Change spaces to ":" so the tokens can be parsed.
SAFESCRIPT=`echo $SCRIPT | sed -e 's; ;:;g'`
# Get the real path to this script, resolving any symbolic links
TOKENS=`echo $SAFESCRIPT | sed -e 's;/; ;g'`
REALPATH=
for C in $TOKENS; do
# Change any ":" in the token back to a space.
C=`echo $C | sed -e 's;:; ;g'`
REALPATH="$REALPATH/$C"
# If REALPATH is a sym link, resolve it. Loop for nested links.
while [ -h "$REALPATH" ] ; do
LS="`ls -ld "$REALPATH"`"
LINK="`expr "$LS" : '.*-> \(.*\)$'`"
if expr "$LINK" : '/.*' > /dev/null; then
# LINK is absolute.
REALPATH="$LINK"
else
# LINK is relative.
REALPATH="`dirname "$REALPATH"`""/$LINK"
fi
done
done
if [ "$REALPATH" = "$SCRIPT" ]
then
CHANGED=""
else
SCRIPT="$REALPATH"
fi
done
# Change the current directory to the location of the script
cd "`dirname "$REALPATH"`"
REALDIR=`pwd`
# If the PIDDIR is relative, set its value relative to the full REALPATH to avoid problems if
# the working directory is later changed.
FIRST_CHAR=`echo $PIDDIR | cut -c1,1`
if [ "$FIRST_CHAR" != "/" ]
then
PIDDIR=$REALDIR/$PIDDIR
fi
# Same test for WRAPPER_CMD
FIRST_CHAR=`echo $WRAPPER_CMD | cut -c1,1`
if [ "$FIRST_CHAR" != "/" ]
then
WRAPPER_CMD=$REALDIR/$WRAPPER_CMD
fi
# Same test for WRAPPER_CONF
FIRST_CHAR=`echo $WRAPPER_CONF | cut -c1,1`
if [ "$FIRST_CHAR" != "/" ]
then
WRAPPER_CONF=$REALDIR/$WRAPPER_CONF
fi
# Process ID
ANCHORFILE="$PIDDIR/$APP_NAME.anchor"
PIDFILE="$PIDDIR/$APP_NAME.pid"
LOCKDIR="/var/lock/subsys"
LOCKFILE="$LOCKDIR/$APP_NAME"
pid=""
# Resolve the location of the 'ps' command
PSEXE="/usr/bin/ps"
if [ ! -x "$PSEXE" ]
then
PSEXE="/bin/ps"
if [ ! -x "$PSEXE" ]
then
echo "Unable to locate 'ps'."
echo "Please report this message along with the location of the command on your system."
exit 1
fi
fi
# Resolve the os
DIST_OS=`uname -s | tr [:upper:] [:lower:] | tr -d [:blank:]`
case "$DIST_OS" in
'sunos')
DIST_OS="solaris"
;;
'hp-ux' | 'hp-ux64')
DIST_OS="hpux"
;;
'darwin')
DIST_OS="macosx"
;;
'unix_sv')
DIST_OS="unixware"
;;
esac
# Resolve the architecture
DIST_ARCH=`uname -p | tr [:upper:] [:lower:] | tr -d [:blank:]`
if [ "$DIST_ARCH" = "unknown" ]
then
DIST_ARCH=`uname -m | tr [:upper:] [:lower:] | tr -d [:blank:]`
fi
case "$DIST_ARCH" in
'amd64' | 'athlon' | 'ia32' | 'ia64' | 'i386' | 'i486' | 'i586' | 'i686' | 'x86_64')
DIST_ARCH="x86"
;;
'ip27')
DIST_ARCH="mips"
;;
'power' | 'powerpc' | 'power_pc' | 'ppc64')
DIST_ARCH="ppc"
;;
'pa_risc' | 'pa-risc')
DIST_ARCH="parisc"
;;
'sun4u' | 'sparcv9')
DIST_ARCH="sparc"
;;
'9000/800')
DIST_ARCH="parisc"
;;
esac
outputFile() {
if [ -f "$1" ]
then
echo " $1 (Found but not executable.)";
else
echo " $1"
fi
}
# Decide on the wrapper binary to use.
# If a 32-bit wrapper binary exists then it will work on 32 or 64 bit
# platforms, if the 64-bit binary exists then the distribution most
# likely wants to use long names. Otherwise, look for the default.
# For macosx, we also want to look for universal binaries.
WRAPPER_TEST_CMD="$WRAPPER_CMD-$DIST_OS-$DIST_ARCH-32"
if [ -x "$WRAPPER_TEST_CMD" ]
then
WRAPPER_CMD="$WRAPPER_TEST_CMD"
else
if [ "$DIST_OS" = "macosx" ]
then
WRAPPER_TEST_CMD="$WRAPPER_CMD-$DIST_OS-universal-32"
if [ -x "$WRAPPER_TEST_CMD" ]
then
WRAPPER_CMD="$WRAPPER_TEST_CMD"
else
WRAPPER_TEST_CMD="$WRAPPER_CMD-$DIST_OS-$DIST_ARCH-64"
if [ -x "$WRAPPER_TEST_CMD" ]
then
WRAPPER_CMD="$WRAPPER_TEST_CMD"
else
WRAPPER_TEST_CMD="$WRAPPER_CMD-$DIST_OS-universal-64"
if [ -x "$WRAPPER_TEST_CMD" ]
then
WRAPPER_CMD="$WRAPPER_TEST_CMD"
else
if [ ! -x "$WRAPPER_CMD" ]
then
echo "Unable to locate any of the following binaries:"
outputFile "$WRAPPER_CMD-$DIST_OS-$DIST_ARCH-32"
outputFile "$WRAPPER_CMD-$DIST_OS-universal-32"
outputFile "$WRAPPER_CMD-$DIST_OS-$DIST_ARCH-64"
outputFile "$WRAPPER_CMD-$DIST_OS-universal-64"
outputFile "$WRAPPER_CMD"
exit 1
fi
fi
fi
fi
else
WRAPPER_TEST_CMD="$WRAPPER_CMD-$DIST_OS-$DIST_ARCH-64"
if [ -x "$WRAPPER_TEST_CMD" ]
then
WRAPPER_CMD="$WRAPPER_TEST_CMD"
else
if [ ! -x "$WRAPPER_CMD" ]
then
echo "Unable to locate any of the following binaries:"
outputFile "$WRAPPER_CMD-$DIST_OS-$DIST_ARCH-32"
outputFile "$WRAPPER_CMD-$DIST_OS-$DIST_ARCH-64"
outputFile "$WRAPPER_CMD"
exit 1
fi
fi
fi
fi
# Build the nice clause
if [ "X$PRIORITY" = "X" ]
then
CMDNICE=""
else
CMDNICE="nice -$PRIORITY"
fi
# Build the anchor file clause.
if [ "X$IGNORE_SIGNALS" = "X" ]
then
ANCHORPROP=
IGNOREPROP=
else
ANCHORPROP=wrapper.anchorfile=\"$ANCHORFILE\"
IGNOREPROP=wrapper.ignore_signals=TRUE
fi
# Build the lock file clause. Only create a lock file if the lock directory exists on this platform.
LOCKPROP=
if [ -d $LOCKDIR ]
then
if [ -w $LOCKDIR ]
then
LOCKPROP=wrapper.lockfile=\"$LOCKFILE\"
fi
fi
checkUser() {
# $1 touchLock flag
# $2 command
# Check the configured user. If necessary rerun this script as the desired user.
if [ "X$RUN_AS_USER" != "X" ]
then
# Resolve the location of the 'id' command
IDEXE="/usr/xpg4/bin/id"
if [ ! -x "$IDEXE" ]
then
IDEXE="/usr/bin/id"
if [ ! -x "$IDEXE" ]
then
echo "Unable to locate 'id'."
echo "Please report this message along with the location of the command on your system."
exit 1
fi
fi
if [ "`$IDEXE -u -n`" = "$RUN_AS_USER" ]
then
# Already running as the configured user. Avoid password prompts by not calling su.
RUN_AS_USER=""
fi
fi
if [ "X$RUN_AS_USER" != "X" ]
then
# If LOCKPROP and $RUN_AS_USER are defined then the new user will most likely not be
# able to create the lock file. The Wrapper will be able to update this file once it
# is created but will not be able to delete it on shutdown. If $2 is defined then
# the lock file should be created for the current command
if [ "X$LOCKPROP" != "X" ]
then
if [ "X$1" != "X" ]
then
# Resolve the primary group
RUN_AS_GROUP=`groups $RUN_AS_USER | awk '{print $3}' | tail -1`
if [ "X$RUN_AS_GROUP" = "X" ]
then
RUN_AS_GROUP=$RUN_AS_USER
fi
touch $LOCKFILE
chown $RUN_AS_USER:$RUN_AS_GROUP $LOCKFILE
fi
fi
# Still want to change users, recurse. This means that the user will only be
# prompted for a password once. Variables shifted by 1
su -m $RUN_AS_USER -c "\"$REALPATH\" $2"
# Now that we are the original user again, we may need to clean up the lock file.
if [ "X$LOCKPROP" != "X" ]
then
getpid
if [ "X$pid" = "X" ]
then
# Wrapper is not running so make sure the lock file is deleted.
if [ -f "$LOCKFILE" ]
then
rm "$LOCKFILE"
fi
fi
fi
exit 0
fi
}
getpid() {
if [ -f "$PIDFILE" ]
then
if [ -r "$PIDFILE" ]
then
pid=`cat "$PIDFILE"`
if [ "X$pid" != "X" ]
then
# It is possible that 'a' process with the pid exists but that it is not the
# correct process. This can happen in a number of cases, but the most
# common is during system startup after an unclean shutdown.
# The ps statement below looks for the specific wrapper command running as
# the pid. If it is not found then the pid file is considered to be stale.
pidtest=`$PSEXE -p $pid -o args | grep "$WRAPPER_CMD" | tail -1`
if [ "X$pidtest" = "X" ]
then
# This is a stale pid file.
rm -f "$PIDFILE"
echo "Removed stale pid file: $PIDFILE"
pid=""
fi
fi
else
echo "Cannot read $PIDFILE."
exit 1
fi
fi
}
testpid() {
pid=`$PSEXE -p $pid | grep $pid | grep -v grep | awk '{print $1}' | tail -1`
if [ "X$pid" = "X" ]
then
# Process is gone so remove the pid file.
rm -f "$PIDFILE"
pid=""
fi
}
console() {
echo "Running $APP_LONG_NAME..."
getpid
if [ "X$pid" = "X" ]
then
# The string passed to eval must handles spaces in paths correctly.
COMMAND_LINE="$CMDNICE \"$WRAPPER_CMD\" \"$WRAPPER_CONF\" wrapper.syslog.ident=$APP_NAME wrapper.pidfile=\"$PIDFILE\" $ANCHORPROP $LOCKPROP"
eval $COMMAND_LINE
else
echo "$APP_LONG_NAME is already running."
exit 1
fi
}
start() {
echo "Starting $APP_LONG_NAME..."
getpid
if [ "X$pid" = "X" ]
then
# The string passed to eval must handles spaces in paths correctly.
COMMAND_LINE="$CMDNICE \"$WRAPPER_CMD\" \"$WRAPPER_CONF\" wrapper.syslog.ident=$APP_NAME wrapper.pidfile=\"$PIDFILE\" wrapper.daemonize=TRUE $ANCHORPROP $IGNOREPROP $LOCKPROP"
eval $COMMAND_LINE
else
echo "$APP_LONG_NAME is already running."
exit 1
fi
getpid
if [ "X$pid" != "X" ]
then
echo "Started $APP_LONG_NAME."
else
echo "Failed to start $APP_LONG_NAME."
fi
}
stopit() {
echo "Stopping $APP_LONG_NAME..."
getpid
if [ "X$pid" = "X" ]
then
echo "$APP_LONG_NAME was not running."
else
if [ "X$IGNORE_SIGNALS" = "X" ]
then
# Running so try to stop it.
kill $pid
if [ $? -ne 0 ]
then
# An explanation for the failure should have been given
echo "Unable to stop $APP_LONG_NAME."
exit 1
fi
else
rm -f "$ANCHORFILE"
if [ -f "$ANCHORFILE" ]
then
# An explanation for the failure should have been given
echo "Unable to stop $APP_LONG_NAME."
exit 1
fi
fi
# We can not predict how long it will take for the wrapper to
# actually stop as it depends on settings in wrapper.conf.
# Loop until it does.
savepid=$pid
CNT=0
TOTCNT=0
while [ "X$pid" != "X" ]
do
# Show a waiting message every 5 seconds.
if [ "$CNT" -lt "5" ]
then
CNT=`expr $CNT + 1`
else
echo "Waiting for $APP_LONG_NAME to exit..."
CNT=0
fi
TOTCNT=`expr $TOTCNT + 1`
sleep 1
testpid
done
pid=$savepid
testpid
if [ "X$pid" != "X" ]
then
echo "Failed to stop $APP_LONG_NAME."
exit 1
else
echo "Stopped $APP_LONG_NAME."
fi
fi
}
status() {
getpid
if [ "X$pid" = "X" ]
then
echo "$APP_LONG_NAME is not running."
exit 1
else
echo "$APP_LONG_NAME is running ($pid)."
exit 0
fi
}
dump() {
echo "Dumping $APP_LONG_NAME..."
getpid
if [ "X$pid" = "X" ]
then
echo "$APP_LONG_NAME was not running."
else
kill -3 $pid
if [ $? -ne 0 ]
then
echo "Failed to dump $APP_LONG_NAME."
exit 1
else
echo "Dumped $APP_LONG_NAME."
fi
fi
}
case "$1" in
'console')
checkUser touchlock $1
console
;;
'start')
checkUser touchlock $1
start
;;
'stop')
checkUser "" $1
stopit
;;
'restart')
checkUser touchlock $1
stopit
start
;;
'status')
checkUser "" $1
status
;;
'dump')
checkUser "" $1
dump
;;
*)
echo "Usage: $0 { console | start | stop | restart | status | dump }"
exit 1
;;
esac
exit 0
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