Chapril/xmpp.chapril.org-ejabberd
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xmpp.chapril.org-ejabberd/ejabberdctl.template
Arno B bee767158d feat(ejabberdctl): Foreground option for docker 
Docker needs services to run in foreground.
2015-10-29 19:39:21 +01:00

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#!/bin/sh
# define default configuration
POLL=true
SMP=auto
ERL_MAX_PORTS=32000
ERL_PROCESSES=250000
ERL_MAX_ETS_TABLES=1400
FIREWALL_WINDOW=""
ERLANG_NODE=ejabberd@localhost
# define default environment variables
SCRIPT_DIR=`cd ${0%/*} && pwd`
ERL={{erl}}
IEX={{bindir}}/iex
EPMD={{bindir}}/epmd
INSTALLUSER={{installuser}}
ERL_LIBS={{libdir}}
# check the proper system user is used if defined
if [ "$INSTALLUSER" != "" ] ; then
EXEC_CMD="false"
for GID in `id -G`; do
if [ $GID -eq 0 ] ; then
INSTALLUSER_HOME=$(getent passwd "$INSTALLUSER" | cut -d: -f6)
if [ -n "$INSTALLUSER_HOME" ] && [ ! -d "$INSTALLUSER_HOME" ] ; then
mkdir -p "$INSTALLUSER_HOME"
chown "$INSTALLUSER" "$INSTALLUSER_HOME"
fi
EXEC_CMD="su $INSTALLUSER -c"
fi
done
if [ `id -g` -eq `id -g $INSTALLUSER` ] ; then
EXEC_CMD="sh -c"
fi
if [ "$EXEC_CMD" = "false" ] ; then
echo "This command can only be run by root or the user $INSTALLUSER" >&2
exit 4
fi
else
EXEC_CMD="sh -c"
fi
# parse command line parameters
ARGS=""
while [ $# -ne 0 ] ; do
PARAM=$1
shift
case $PARAM in
--) break ;;
--node) ERLANG_NODE_ARG=$1 ; shift ;;
--config-dir) ETC_DIR="$1" ; shift ;;
--config) EJABBERD_CONFIG_PATH="$1" ; shift ;;
--ctl-config) EJABBERDCTL_CONFIG_PATH="$1" ; shift ;;
--logs) LOGS_DIR="$1" ; shift ;;
--spool) SPOOL_DIR="$1" ; shift ;;
*) ARGS="$ARGS $PARAM" ;;
esac
done
# Define ejabberd variable if they have not been defined from the command line
if [ "$ETC_DIR" = "" ] ; then
ETC_DIR={{sysconfdir}}/ejabberd
fi
if [ "$EJABBERDCTL_CONFIG_PATH" = "" ] ; then
EJABBERDCTL_CONFIG_PATH=$ETC_DIR/ejabberdctl.cfg
fi
if [ -f "$EJABBERDCTL_CONFIG_PATH" ] ; then
. "$EJABBERDCTL_CONFIG_PATH"
fi
if [ "$EJABBERD_CONFIG_PATH" = "" ] ; then
EJABBERD_CONFIG_PATH=$ETC_DIR/ejabberd.yml
fi
if [ "$LOGS_DIR" = "" ] ; then
LOGS_DIR={{localstatedir}}/log/ejabberd
fi
if [ "$SPOOL_DIR" = "" ] ; then
SPOOL_DIR={{localstatedir}}/lib/ejabberd
fi
if [ "$EJABBERD_DOC_PATH" = "" ] ; then
EJABBERD_DOC_PATH={{docdir}}
fi
if [ "$ERLANG_NODE_ARG" != "" ] ; then
ERLANG_NODE=$ERLANG_NODE_ARG
NODE=${ERLANG_NODE%@*}
fi
if [ "{{release}}" != "true" ] ; then
if [ "$EJABBERDDIR" = "" ] ; then
EJABBERDDIR={{libdir}}/ejabberd
fi
if [ "$EJABBERD_PRIV_PATH" = "" ] ; then
EJABBERD_PRIV_PATH=$EJABBERDDIR/priv
fi
if [ "$EJABBERD_BIN_PATH" = "" ] ; then
EJABBERD_BIN_PATH=$EJABBERD_PRIV_PATH/bin
fi
fi
EJABBERD_LOG_PATH=$LOGS_DIR/ejabberd.log
DATETIME=`date "+%Y%m%d-%H%M%S"`
ERL_CRASH_DUMP=$LOGS_DIR/erl_crash_$DATETIME.dump
ERL_INETRC=$ETC_DIR/inetrc
# define mnesia options
MNESIA_OPTS="-mnesia dir \"\\\"$SPOOL_DIR\\\"\" $MNESIA_OPTIONS"
# define erl parameters
ERL_OPTIONS=$(echo $ERL_OPTIONS | sed 's/ /\\ /g')
ERLANG_OPTS="+K $POLL -smp $SMP +P $ERL_PROCESSES $ERL_OPTIONS"
KERNEL_OPTS=""
if [ "$FIREWALL_WINDOW" != "" ] ; then
KERNEL_OPTS="${KERNEL_OPTS} -kernel inet_dist_listen_min ${FIREWALL_WINDOW%-*} inet_dist_listen_max ${FIREWALL_WINDOW#*-}"
fi
if [ "$INET_DIST_INTERFACE" != "" ] ; then
INET_DIST_INTERFACE2="$(echo $INET_DIST_INTERFACE | sed 's/\./,/g')"
if [ "$INET_DIST_INTERFACE" != "$INET_DIST_INTERFACE2" ] ; then
INET_DIST_INTERFACE2="{$INET_DIST_INTERFACE2}"
fi
KERNEL_OPTS="${KERNEL_OPTS} -kernel inet_dist_use_interface \"${INET_DIST_INTERFACE2}\""
fi
if [ "$ERLANG_NODE" = "${ERLANG_NODE%.*}" ] ; then
NAME="-sname"
else
NAME="-name"
fi
IEXNAME="-$NAME"
# define ejabberd environment parameters
if [ "$EJABBERD_CONFIG_PATH" != "${EJABBERD_CONFIG_PATH%.yml}" ] ; then
rate=$(sed '/^[ ]*log_rate_limit/!d;s/.*://;s/ *//' $EJABBERD_CONFIG_PATH)
rotate=$(sed '/^[ ]*log_rotate_size/!d;s/.*://;s/ *//' $EJABBERD_CONFIG_PATH)
count=$(sed '/^[ ]*log_rotate_count/!d;s/.*://;s/ *//' $EJABBERD_CONFIG_PATH)
date=$(sed '/^[ ]*log_rotate_date/!d;s/.*://;s/ *//' $EJABBERD_CONFIG_PATH)
else
rate=$(sed '/^[ ]*log_rate_limit/!d;s/.*,//;s/ *//;s/}\.//' $EJABBERD_CONFIG_PATH)
rotate=$(sed '/^[ ]*log_rotate_size/!d;s/.*,//;s/ *//;s/}\.//' $EJABBERD_CONFIG_PATH)
count=$(sed '/^[ ]*log_rotate_count/!d;s/.*,//;s/ *//;s/}\.//' $EJABBERD_CONFIG_PATH)
date=$(sed '/^[ ]*log_rotate_date/!d;s/.*,//;s/ *//;s/}\.//' $EJABBERD_CONFIG_PATH)
fi
[ -z "$rate" ] || EJABBERD_OPTS="log_rate_limit $rate"
[ -z "$rotate" ] || EJABBERD_OPTS="${EJABBERD_OPTS} log_rotate_size $rotate"
[ -z "$count" ] || EJABBERD_OPTS="${EJABBERD_OPTS} log_rotate_count $count"
[ -z "$date" ] || EJABBERD_OPTS="${EJABBERD_OPTS} log_rotate_date '$date'"
[ -z "$EJABBERD_OPTS" ] || EJABBERD_OPTS="-ejabberd ${EJABBERD_OPTS}"
[ -d $SPOOL_DIR ] || $EXEC_CMD "mkdir -p $SPOOL_DIR"
cd $SPOOL_DIR
# export global variables
export EJABBERD_CONFIG_PATH
export EJABBERD_LOG_PATH
export EJABBERD_BIN_PATH
export EJABBERD_DOC_PATH
export EJABBERD_PID_PATH
export ERL_CRASH_DUMP
export ERL_EPMD_ADDRESS
export ERL_INETRC
export ERL_MAX_PORTS
export ERL_MAX_ETS_TABLES
export CONTRIB_MODULES_PATH
export CONTRIB_MODULES_CONF_DIR
export ERL_LIBS
# start server
start()
{
check_start
$EXEC_CMD "$ERL \
$NAME $ERLANG_NODE \
-noinput -detached \
-pa $EJABBERD_EBIN_PATH \
$MNESIA_OPTS \
$KERNEL_OPTS \
$EJABBERD_OPTS \
-s ejabberd \
$ERLANG_OPTS $ARGS \"$@\""
}
# attach to server
debug()
{
debugwarning
TTY=`tty | sed -e 's/.*\///g'`
$EXEC_CMD "$ERL \
$NAME debug-${TTY}-${ERLANG_NODE} \
-remsh $ERLANG_NODE \
-hidden \
$KERNEL_OPTS \
$ERLANG_OPTS $ARGS \"$@\""
}
# attach to server using Elixir
iexdebug()
{
debugwarning
TTY=`tty | sed -e 's/.*\///g'`
# Elixir shell is hidden as default
$EXEC_CMD "$IEX \
$IEXNAME debug-${TTY}-${ERLANG_NODE} \
--remsh $ERLANG_NODE \
--erl \"$KERNEL_OPTS\" \
--erl \"$ERLANG_OPTS\" --erl \"$ARGS\" --erl \"$@\""
}
# start interactive server
live()
{
livewarning
$EXEC_CMD "$ERL \
$NAME $ERLANG_NODE \
-pa $EJABBERD_EBIN_PATH \
$MNESIA_OPTS \
$KERNEL_OPTS \
$EJABBERD_OPTS \
-s ejabberd \
$ERLANG_OPTS $ARGS \"$@\""
}
# start interactive server with Elixir
iexlive()
{
livewarning
$EXEC_CMD "$IEX \
$IEXNAME $ERLANG_NODE \
-pa $EJABBERD_EBIN_PATH \
--erl \"-mnesia dir \\\"$SPOOL_DIR\\\"\" \
--erl \"$KERNEL_OPTS\" \
--erl \"$EJABBERD_OPTS\" \
--app ejabberd \
--erl \"$ERLANG_OPTS\" --erl $ARGS --erl \"$@\""
}
# start server in the foreground
foreground()
{
check_start
$EXEC_CMD "$ERL \
$NAME $ERLANG_NODE \
-noinput \
-pa $EJABBERD_EBIN_PATH \
$MNESIA_OPTS \
$KERNEL_OPTS \
$EJABBERD_OPTS \
-s ejabberd \
$ERLANG_OPTS $ARGS \"$@\""
}
debugwarning()
{
if [ "$EJABBERD_BYPASS_WARNINGS" != "true" ] ; then
echo "--------------------------------------------------------------------"
echo ""
echo "IMPORTANT: we will attempt to attach an INTERACTIVE shell"
echo "to an already running ejabberd node."
echo "If an ERROR is printed, it means the connection was not successful."
echo "You can interact with the ejabberd node if you know how to use it."
echo "Please be extremely cautious with your actions,"
echo "and exit immediately if you are not completely sure."
echo ""
echo "To detach this shell from ejabberd, press:"
echo " control+c, control+c"
echo ""
echo "--------------------------------------------------------------------"
echo "To bypass permanently this warning, add to ejabberdctl.cfg the line:"
echo " EJABBERD_BYPASS_WARNINGS=true"
echo "Press return to continue"
read foo
echo ""
fi
}
livewarning()
{
check_start
if [ "$EJABBERD_BYPASS_WARNINGS" != "true" ] ; then
echo "--------------------------------------------------------------------"
echo ""
echo "IMPORTANT: ejabberd is going to start in LIVE (interactive) mode."
echo "All log messages will be shown in the command shell."
echo "You can interact with the ejabberd node if you know how to use it."
echo "Please be extremely cautious with your actions,"
echo "and exit immediately if you are not completely sure."
echo ""
echo "To exit this LIVE mode and stop ejabberd, press:"
echo " q(). and press the Enter key"
echo ""
echo "--------------------------------------------------------------------"
echo "To bypass permanently this warning, add to ejabberdctl.cfg the line:"
echo " EJABBERD_BYPASS_WARNINGS=true"
echo "Press return to continue"
read foo
echo ""
fi
}
etop()
{
TTY=`tty | sed -e 's/.*\///g'`
$EXEC_CMD "$ERL \
$NAME debug-${TTY}-${ERLANG_NODE} \
-hidden -s etop -s erlang halt -output text -node $ERLANG_NODE"
}
ping()
{
TTY=`tty | sed -e 's/.*\///g'`
$EXEC_CMD "$ERL \
$NAME ping-${TTY}-${ERLANG_NODE} \
-hidden \
-pa $EJABBERD_EBIN_PATH \
$KERNEL_OPTS $ERLANG_OPTS \
-eval 'io:format(\"~p~n\",[net_adm:ping($1)])' \
-s erlang halt -output text -noinput"
}
help()
{
echo ""
echo "Commands to start an ejabberd node:"
echo " start Start an ejabberd node in server mode"
echo " debug Attach an interactive Erlang shell to a running ejabberd node"
echo " iexdebug Attach an interactive Elixir shell to a running ejabberd node"
echo " live Start an ejabberd node in live (interactive) mode"
echo " iexlive Start an ejabberd node in live (interactive) mode, within an Elixir shell"
echo " foreground Start an ejabberd node in server mode (attached)"
echo ""
echo "Optional parameters when starting an ejabberd node:"
echo " --config-dir dir Config ejabberd: $ETC_DIR"
echo " --config file Config ejabberd: $EJABBERD_CONFIG_PATH"
echo " --ctl-config file Config ejabberdctl: $EJABBERDCTL_CONFIG_PATH"
echo " --logs dir Directory for logs: $LOGS_DIR"
echo " --spool dir Database spool dir: $SPOOL_DIR"
echo " --node nodename ejabberd node name: $ERLANG_NODE"
echo ""
}
# common control function
ctl()
{
COMMAND=$@
# Control number of connections identifiers
# using flock if available. Expects a linux-style
# flock that can lock a file descriptor.
MAXCONNID=100
CONNLOCKDIR={{localstatedir}}/lock/ejabberdctl
FLOCK=/usr/bin/flock
if [ ! -x "$FLOCK" ] || [ ! -d "$CONNLOCKDIR" ] ; then
JOT=/usr/bin/jot
if [ ! -x "$JOT" ] ; then
# no flock or jot, simply invoke ctlexec()
CTL_CONN="ctl-${ERLANG_NODE}"
ctlexec $CTL_CONN $COMMAND
result=$?
else
# no flock, but at least there is jot
RAND=`jot -r 1 0 $MAXCONNID`
CTL_CONN="ctl-${RAND}-${ERLANG_NODE}"
ctlexec $CTL_CONN $COMMAND
result=$?
fi
else
# we have flock so we get a lock
# on one of a limited number of
# conn names -- this allows
# concurrent invocations using a bound
# number of atoms
for N in `seq 1 $MAXCONNID`; do
CTL_CONN="ejabberdctl-$N"
CTL_LOCKFILE="$CONNLOCKDIR/$CTL_CONN"
(
exec 8>"$CTL_LOCKFILE"
if flock --nb 8; then
ctlexec $CTL_CONN $COMMAND
ssresult=$?
# segregate from possible flock exit(1)
ssresult=`expr $ssresult \* 10`
exit $ssresult
else
exit 1
fi
)
result=$?
if [ $result -eq 1 ] ; then
# means we errored out in flock
# rather than in the exec - stay in the loop
# trying other conn names...
badlock=1
else
badlock=""
break;
fi
done
result=`expr $result / 10`
fi
if [ "$badlock" ] ;then
echo "Ran out of connections to try. Your ejabberd processes" >&2
echo "may be stuck or this is a very busy server. For very" >&2
echo "busy servers, consider raising MAXCONNID in ejabberdctl">&2
exit 1;
fi
case $result in
0) :;;
1) :;;
2) help;;
3) help;;
esac
return $result
}
ctlexec()
{
CONN_NAME=$1; shift
COMMAND=$(echo $@ | sed 's/["&$;\|<>()]/\\&/g')
$EXEC_CMD "$ERL \
$NAME ${CONN_NAME} \
-noinput \
-hidden \
-pa $EJABBERD_EBIN_PATH \
$KERNEL_OPTS \
-s ejabberd_ctl -extra $ERLANG_NODE $COMMAND"
}
# stop epmd if there is no other running node
stop_epmd()
{
$EPMD -names 2>/dev/null | grep -q name || $EPMD -kill >/dev/null
}
# make sure node not already running and node name unregistered
check_start()
{
$EPMD -names 2>/dev/null | grep -q " ${ERLANG_NODE%@*} " && {
ps ux | grep -v grep | grep -q " $ERLANG_NODE " && {
echo "ERROR: The ejabberd node '$ERLANG_NODE' is already running."
exit 4
} || {
ps ux | grep -v grep | grep -q beam && {
echo "ERROR: The ejabberd node '$ERLANG_NODE' is registered,"
echo " but no related beam process has been found."
echo "Shutdown all other erlang nodes, and call 'epmd -kill'."
exit 5
} || {
$EPMD -kill >/dev/null
}
}
}
}
# cluster setup
join_cluster()
{
$EXEC_CMD "$EJABBERD_BIN_PATH/joincluster $*"
}
leave_cluster()
{
$EXEC_CMD "$EJABBERD_BIN_PATH/leavecluster $*"
}
# allow sync calls
wait_for_status()
{
# args: status try delay
# return: 0 OK, 1 KO
timeout=$2
status=4
while [ $status -ne $1 ] ; do
sleep $3
timeout=`expr $timeout - 1`
[ $timeout -eq 0 ] && {
status=$1
} || {
ctl status > /dev/null
status=$?
}
done
[ $timeout -eq 0 ] && return 1 || return 0
}
# main handler
case $ARGS in
' start') start;;
' debug') debug;;
' iexdebug') iexdebug;;
' live') live;;
' iexlive') iexlive;;
' foreground') foreground;;
' ping'*) ping ${ARGS# ping};;
' etop') etop;;
' started') wait_for_status 0 30 2;; # wait 30x2s before timeout
' stopped') wait_for_status 3 15 2 && stop_epmd;; # wait 15x2s before timeout
' join_cluster'*) join_cluster ${ARGS# join_cluster};;
' leave_cluster'*) leave_cluster ${ARGS# leave_cluster};;
*) ctl $ARGS;;
esac
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