rebar/priv/templates/simplenode.runner
Jared Morrow c4989f0939 Change simplenode template files to work on more platforms
When developing Riak, we have found bugs and other issues due
to the number of platforms we support.

Here is an overview of the changes:
  -  Fix command-line syntax for commands to work on *BSD / Sun
  -  Add chkconfig and getpid to nodetool
  -  Replace platform specific 'kill' commands with a nodetool
	getpid method
  -  Fix RUNNER_USER settings to work on *BSD
2013-01-17 14:41:21 -07:00

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#!/bin/sh
# -*- tab-width:4;indent-tabs-mode:nil -*-
# ex: ts=4 sw=4 et
# /bin/sh on Solaris is not a POSIX compatible shell, but /usr/bin/ksh is.
if [ `uname -s` = 'SunOS' -a "${POSIX_SHELL}" != "true" ]; then
POSIX_SHELL="true"
export POSIX_SHELL
# To support 'whoami' add /usr/ucb to path
PATH=/usr/ucb:$PATH
export PATH
exec /usr/bin/ksh $0 "$@"
fi
# clear it so if we invoke other scripts, they run as ksh
unset POSIX_SHELL
RUNNER_SCRIPT_DIR=$(cd ${0%/*} && pwd)
CALLER_DIR=$PWD
RUNNER_BASE_DIR=${RUNNER_SCRIPT_DIR%/*}
RUNNER_ETC_DIR=$RUNNER_BASE_DIR/etc
# Note the trailing slash on $PIPE_DIR/
PIPE_DIR=/tmp/$RUNNER_BASE_DIR/
RUNNER_USER=
WHOAMI=$(whoami)
# Make sure this script is running as the appropriate user
if ([ "$RUNNER_USER" ] && [ "x$WHOAMI" != "x$RUNNER_USER" ]); then
type sudo > /dev/null 2>&1
if [ $? -ne 0 ]; then
echo "sudo doesn't appear to be installed and your EUID isn't $RUNNER_USER" 1>&2
exit 1
fi
echo "Attempting to restart script through sudo -H -u $RUNNER_USER" >&2
exec sudo -H -u $RUNNER_USER -i $RUNNER_SCRIPT_DIR/$RUNNER_SCRIPT $@
fi
# Identify the script name
SCRIPT=`basename $0`
# Parse out release and erts info
START_ERL=`cat $RUNNER_BASE_DIR/releases/start_erl.data`
ERTS_VSN=${START_ERL% *}
APP_VSN=${START_ERL#* }
# Use $CWD/vm.args if exists, otherwise releases/APP_VSN/vm.args, or
# else etc/vm.args
if [ -e "$CALLER_DIR/vm.args" ]; then
VMARGS_PATH=$CALLER_DIR/vm.args
USE_DIR=$CALLER_DIR
else
USE_DIR=$RUNNER_BASE_DIR
if [ -e "$RUNNER_BASE_DIR/releases/$APP_VSN/vm.args" ]; then
VMARGS_PATH="$RUNNER_BASE_DIR/releases/$APP_VSN/vm.args"
else
VMARGS_PATH="$RUNNER_ETC_DIR/vm.args"
fi
fi
RUNNER_LOG_DIR=$USE_DIR/log
# Make sure log directory exists
mkdir -p $RUNNER_LOG_DIR
# Use releases/VSN/sys.config if it exists otherwise use etc/app.config
if [ -e "$USE_DIR/sys.config" ]; then
CONFIG_PATH="$USE_DIR/sys.config"
else
if [ -e "$RUNNER_BASE_DIR/releases/$APP_VSN/sys.config" ]; then
CONFIG_PATH="$RUNNER_BASE_DIR/releases/$APP_VSN/sys.config"
else
CONFIG_PATH="$RUNNER_ETC_DIR/app.config"
fi
fi
# Extract the target node name from node.args
NAME_ARG=`egrep '^\-s?name' $VMARGS_PATH`
if [ -z "$NAME_ARG" ]; then
echo "vm.args needs to have either -name or -sname parameter."
exit 1
fi
# Extract the name type and name from the NAME_ARG for REMSH
REMSH_TYPE=`echo $NAME_ARG | awk '{print $1}'`
REMSH_NAME=`echo $NAME_ARG | awk '{print $2}'`
# Note the `date +%s`, used to allow multiple remsh to the same node
# transparently
REMSH_NAME_ARG="$REMSH_TYPE remsh`date +%s`@`echo $REMSH_NAME | awk -F@ '{print $2}'`"
REMSH_REMSH_ARG="-remsh $REMSH_NAME"
# Extract the target cookie
COOKIE_ARG=`grep '^\-setcookie' $VMARGS_PATH`
if [ -z "$COOKIE_ARG" ]; then
echo "vm.args needs to have a -setcookie parameter."
exit 1
fi
# Make sure CWD is set to the right dir
cd $USE_DIR
# Make sure log directory exists
mkdir -p $USE_DIR/log
# Add ERTS bin dir to our path
ERTS_PATH=$RUNNER_BASE_DIR/erts-$ERTS_VSN/bin
# Setup command to control the node
NODETOOL="$ERTS_PATH/escript $ERTS_PATH/nodetool $NAME_ARG $COOKIE_ARG"
# Setup remote shell command to control node
REMSH="$ERTS_PATH/erl $REMSH_NAME_ARG $REMSH_REMSH_ARG $COOKIE_ARG"
# Common functions
# Ping node without allowing nodetool to take stdin
ping_node() {
$NODETOOL ping < /dev/null
}
# Set the PID global variable, return 1 on error
get_pid() {
PID=`$NODETOOL getpid < /dev/null`
ES=$?
if [ "$ES" -ne 0 ]; then
echo "Node is not running!"
return 1
fi
# don't allow empty or init pid's
if [ -z $PID ] || [ "$PID" -le 1 ]; then
return 1
fi
return 0
}
# Check the first argument for instructions
case "$1" in
start|start_boot)
# Make sure there is not already a node running
RES=`ping_node`
if [ "$RES" = "pong" ]; then
echo "Node is already running!"
exit 1
fi
case "$1" in
start)
shift
START_OPTION="console"
HEART_OPTION="start"
;;
start_boot)
shift
START_OPTION="console_boot"
HEART_OPTION="start_boot"
;;
esac
RUN_PARAM=$(printf "\'%s\' " "$@")
HEART_COMMAND="$RUNNER_BASE_DIR/bin/$SCRIPT $HEART_OPTION $RUN_PARAM"
export HEART_COMMAND
mkdir -p $PIPE_DIR
$ERTS_PATH/run_erl -daemon $PIPE_DIR $RUNNER_LOG_DIR "exec $RUNNER_BASE_DIR/bin/$SCRIPT $START_OPTION $RUN_PARAM" 2>&1
;;
stop)
# Wait for the node to completely stop...
case `uname -s` in
Darwin)
# Make sure we explicitly set this because iTerm.app doesn't for
# some reason.
COMMAND_MODE=unix2003
esac
# Get the PID from nodetool
get_pid
GPR=$?
if [ "$GPR" -ne 0 ] || [ -z $PID ]; then
exit $GPR
fi
# Tell nodetool to initiate a stop
$NODETOOL stop
ES=$?
if [ "$ES" -ne 0 ]; then
exit $ES
fi
# Wait for the node to completely stop...
while `kill -s 0 $PID 2>/dev/null`
do
sleep 1
done
;;
restart)
## Restart the VM without exiting the process
$NODETOOL restart
ES=$?
if [ "$ES" -ne 0 ]; then
exit $ES
fi
;;
reboot)
## Restart the VM completely (uses heart to restart it)
$NODETOOL reboot
ES=$?
if [ "$ES" -ne 0 ]; then
exit $ES
fi
;;
ping)
## See if the VM is alive
ping_node
ES=$?
if [ "$ES" -ne 0 ]; then
exit $ES
fi
;;
attach)
# Make sure a node is running
ping_node
ES=$?
if [ "$ES" -ne 0 ]; then
echo "Node is not running!"
exit $ES
fi
shift
exec $ERTS_PATH/to_erl $PIPE_DIR
;;
remote_console)
# Make sure a node is running
ping_node
ES=$?
if [ "$ES" -ne 0 ]; then
echo "Node is not running!"
exit $ES
fi
shift
exec $REMSH
;;
upgrade)
if [ -z "$2" ]; then
echo "Missing upgrade package argument"
echo "Usage: $SCRIPT upgrade {package base name}"
echo "NOTE {package base name} MUST NOT include the .tar.gz suffix"
exit 1
fi
# Make sure a node IS running
ping_node
ES=$?
if [ "$ES" -ne 0 ]; then
echo "Node is not running!"
exit $ES
fi
node_name=`echo $NAME_ARG | awk '{print $2}'`
erlang_cookie=`echo $COOKIE_ARG | awk '{print $2}'`
$ERTS_PATH/escript $RUNNER_BASE_DIR/bin/install_upgrade.escript $node_name $erlang_cookie $2
;;
console|console_clean|console_boot)
# .boot file typically just $SCRIPT (ie, the app name)
# however, for debugging, sometimes start_clean.boot is useful.
# For e.g. 'setup', one may even want to name another boot script.
case "$1" in
console) BOOTFILE=$SCRIPT ;;
console_clean) BOOTFILE=start_clean ;;
console_boot)
shift
BOOTFILE="$1"
shift
;;
esac
# Setup beam-required vars
ROOTDIR=$RUNNER_BASE_DIR
BINDIR=$ROOTDIR/erts-$ERTS_VSN/bin
EMU=beam
PROGNAME=`echo $0 | sed 's/.*\\///'`
CMD="$BINDIR/erlexec -boot $RUNNER_BASE_DIR/releases/$APP_VSN/$BOOTFILE -mode embedded -config $CONFIG_PATH -args_file $VMARGS_PATH"
export EMU
export ROOTDIR
export BINDIR
export PROGNAME
# Dump environment info for logging purposes
echo "Exec: $CMD" -- ${1+"$@"}
echo "Root: $ROOTDIR"
# Log the startup
logger -t "$SCRIPT[$$]" "Starting up"
# Start the VM
exec $CMD -- ${1+"$@"}
;;
foreground)
# start up the release in the foreground for use by runit
# or other supervision services
BOOTFILE=$SCRIPT
FOREGROUNDOPTIONS="-noinput +Bd"
# Setup beam-required vars
ROOTDIR=$RUNNER_BASE_DIR
BINDIR=$ROOTDIR/erts-$ERTS_VSN/bin
EMU=beam
PROGNAME=`echo $0 | sed 's/.*\///'`
CMD="$BINDIR/erlexec $FOREGROUNDOPTIONS -boot $RUNNER_BASE_DIR/releases/$APP_VSN/$BOOTFILE -config $CONFIG_PATH -args_file $VMARGS_PATH"
export EMU
export ROOTDIR
export BINDIR
export PROGNAME
# Dump environment info for logging purposes
echo "Exec: $CMD" -- ${1+"$@"}
echo "Root: $ROOTDIR"
# Start the VM
exec $CMD -- ${1+"$@"}
;;
getpid)
# Get the PID from nodetool
get_pid
ES=$?
if [ "$ES" -ne 0 ] || [ -z $PID ]; then
exit $ES
fi
echo $PID
;;
*)
echo "Usage: $SCRIPT {start|start_boot <file>|foreground|stop|restart|reboot|ping|console|getpid||console_clean|console_boot <file>|attach|remote_console|upgrade}"
exit 1
;;
esac
exit 0