====== Installer Etherpad-Lite sur CentOS 6 ======

Il faut en prérequis une CentOS 6 de base et le dépôt EPEL configuré

===== Installer les dépendances =====

<code bash>
yum groupinstall "Development Tools"
yum install gzip git-core curl python openssl-devel npm nodejs mysql-server
</code>

===== Créer un compte utilisateur =====

<code bash>
useradd etherpad
</code>

===== Cloner le dépôt GIT =====
<code bash>
cd /opt
git clone git@github.com:ether/etherpad-lite.git
chown -R etherpad:etherpad ./etherpad-lite
cp -a etherpad-lite/settings.json.template etherpad-lite/settings.json
</code>

===== Créer la base de données =====
<code bash>
mysql -uroot
</code>
<code sql>
create database etherpad;
grant all privileges on etherpad.* to 'etherpad'@'localhost' identified by 'ThisIsMySQLPassw0rd';
flush privileges;
</code>

===== Adaptez la configuration =====
Éditez le fichier /opt/etherpad-lite/settings.json selon vos besoins, notamment la partie base de données pour utiliser MySQL

<code json>
// [...]
   "dbType" : "mysql",
     "dbSettings" : {
                    "user"    : "etherpad",
                    "port"    : "/var/lib/mysql/mysql.sock",
                    "password": "ThisIsMySQLPassw0rd",
                    "database": "etherpad"
                  },
// [...]
</code>

===== Créer le script d'init =====
<code bash>
cat <<'EOF' > /etc/init.d/etherpad
#!/bin/bash
# chkconfig: 2345 90 90
# description: etherpad
### BEGIN INIT INFO
# Provides: etherpad
# Required-Start: network
# Required-Stop: network
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Description: Start the etherpad-lite daemon
### END INIT INFO

START_CMD="/opt/etherpad-lite/bin/safeRun.sh"
LOG="/var/log/etherpad.log"
NAME="etherpad"
PGREP_STRING="/opt/etherpad-lite/bin/safeRun.sh"
PGREP_NODE_STRING="node /opt/etherpad-lite/node_modules/ep_etherpad-lite/node/server.js"
PID_FILE="/var/run/etherpad/etherpad-dev.pid"
USER="etherpad"

### No further muckin' about needed!

CUR_USER=`whoami`

killproc() {
  pkill -u $USER -f $PGREP_STRING
  pkill -u $USER -f $PGREP_NODE_STRING
}

killproc_node(){
  pkill -u $USER -f "$PGREP_NODE_STRING"
}

log_success_msg() {
  echo "$*"
  logger "$_"
}

log_failure_msg() {
  echo "$*"
  logger "$_"
}

check_proc() {
  pgrep -u $USER -f $PGREP_STRING >/dev/null
}

check_proc_node(){
  pgrep -u $USER -f $PGREP_NODE_STRING >/dev/null
}

start_script() {
  if [ "${CUR_USER}" != "root" ] ; then
    log_failure_msg "$NAME can only be started as 'root'."
    exit -1
  fi

  check_proc
  if [ $? -eq 0 ]; then
    log_success_msg "$NAME is already running."
    exit 0
  fi

  [ -d /var/run/$NAME ] || (mkdir /var/run/$NAME )

  # make go now
  /bin/su $USER -c "$START_CMD $LOG &"

  # Sleep for a while to see if anything cries
  sleep 5
  check_proc

  if [ $? -eq 0 ]; then
    log_success_msg "Started $NAME."
  else
    log_failure_msg "Error starting $NAME."
    exit -1
  fi
}

stop_script() {
  if [ "${CUR_USER}" != "root" ] ; then
    log_failure_msg "You do not have permission to stop $NAME."
    exit -1
  fi

  check_proc
  if [ $? -eq 0 ]; then
    killproc -p $PID_FILE >/dev/null

    # Make sure it's dead before we return
    until [ $? -ne 0 ]; do
      sleep 1
      check_proc
    done

    check_proc
    if [ $? -eq 0 ]; then
      log_failure_msg "Error stopping $NAME."
      exit -1
    else
      log_success_msg "Stopped $NAME."
    fi
  else
    log_failure_msg "$NAME is not running or you don't have permission to stop it"
  fi

  check_proc_node
  if [ $? -eq 0 ]; then
    killproc_node -p $PID_FILE >/dev/null

  else
    log_failure_msg "$NAME is not running or you don't have permission to stop it"
  fi

}

check_status() {
  check_proc
  if [ $? -eq 0 ]; then
    log_success_msg "$NAME is running."
  else
    log_failure_msg "$NAME is stopped."
    exit -1
  fi
}

case "$1" in
  start)
    start_script
    ;;
  stop)
    stop_script
    ;;
  restart)
    stop_script
    start_script
    ;;
  status)
    check_status
    ;;
  *)
    echo "Usage: $0 {start|stop|restart|status}"
    exit 1
esac

exit 0
EOF
chmod +x /etc/init.d/etherpad
chkconfig etherpad on
</code>

===== Démarrer Etherpad-Lite =====
Si tout se passe bien, le démon devrait se lancer
<code bash>
/etc/init.d/etherpad start
</code>

===== Convertir la base en UTF-8 =====
<code bash>
mysql -uroot
</code>
<code sql>
ALTER DATABASE `etherpad` CHARACTER SET utf8 COLLATE utf8_bin;
USE etherpad;
ALTER TABLE `store` CONVERT TO CHARACTER SET utf8 COLLATE utf8_bin;
</code>

<code bash>
/etc/init.d/etherpad restart
</code>

Voilà, etherpad devrait être accessible (port 9001 par défaut)