Added support for Amazon Linux startup script

Script is based heavily off of the CentOS/Redhat script, with the calls to super removed.

constants.js

@@ -41,6 +41,7 @@ var default_conf = {
   CENTOS_STARTUP_SCRIPT : '../lib/scripts/pm2-init-centos.sh',
   UBUNTU_STARTUP_SCRIPT : '../lib/scripts/pm2-init.sh',
   SYSTEMD_STARTUP_SCRIPT: '../lib/scripts/pm2.service',
+  AMAZON_STARTUP_SCRIPT: '../lib/scripts/pm2-init-amazon.sh',
 
   SUCCESS_EXIT       : 0,
   ERROR_EXIT         : 1,

lib/CLI.js

@@ -225,6 +225,8 @@ CLI.startup = function(platform) {
   }
   else if (platform == 'centos' || platform == 'redhat')
     script = fs.readFileSync(path.join(__dirname, cst.CENTOS_STARTUP_SCRIPT));
+  else if (platform == 'amazon')
+    script = fs.readFileSync(path.join(__dirname, cst.AMAZON_STARTUP_SCRIPT));
   else
     script = fs.readFileSync(path.join(__dirname, cst.UBUNTU_STARTUP_SCRIPT));
 
@@ -260,7 +262,7 @@ CLI.startup = function(platform) {
 
     console.log(cst.PREFIX_MSG + '-systemd- Using the command %s', cmd);
   }
-  else if (platform == 'centos' || platform == 'redhat') {
+  else if (platform == 'centos' || platform == 'redhat' || platform == 'amazon') {
     cmd = 'chmod +x ' + INIT_SCRIPT + '; chkconfig --add ' + p.basename(INIT_SCRIPT);
     console.log(cst.PREFIX_MSG + '-centos- Using the command %s', cmd);
     fs.openSync('/var/lock/subsys/pm2-init.sh', 'w');
@@ -274,7 +276,7 @@ CLI.startup = function(platform) {
   exec(cmd, function(err, stdo, stde) {
     if (err) {
       console.error(err);
-      console.log('----- Are you sure you use the right platform command line option ? centos / redhat, ubuntu or systemd?');
+      console.log('----- Are you sure you use the right platform command line option ? centos / redhat, amazon, ubuntu or systemd?');
       exitCli(cst.ERROR_EXIT);
     }
     console.log(stdo);

lib/scripts/pm2-init-amazon.sh

@@ -0,0 +1,84 @@
+#!/bin/bash
+#
+# pm2 Process manager for NodeJS
+#
+# chkconfig: 345 80 20
+#
+# description: PM2 next gen process manager for Node.js
+# processname: pm2
+#
+### BEGIN INIT INFO
+# Provides:          pm2
+# Required-Start: $local_fs $remote_fs
+# Required-Stop: $local_fs $remote_fs
+# Should-Start: $network
+# Should-Stop: $network
+# Default-Start:        2 3 4 5
+# Default-Stop:         0 1 6
+# Short-Description: PM2 init script
+# Description: PM2 is the next gen process manager for Node.js
+### END INIT INFO
+
+NAME=pm2
+PM2=%PM2_PATH%
+USER=%USER%
+
+export PATH=$PATH:%NODE_PATH%
+export HOME="%HOME_PATH%"
+
+lockfile="/var/lock/subsys/pm2-init.sh"
+
+start() {
+    echo "Starting $NAME"
+    $PM2 resurrect
+    retval=$?
+    [ $retval -eq 0 ] && touch $lockfile
+}
+
+stop() {
+    echo "Stopping $NAME"
+    $PM2 dump
+    $PM2 delete all
+    $PM2 kill
+    rm -f $lockfile
+}
+
+restart() {
+    echo "Restarting $NAME"
+    stop
+    start
+}
+
+reload() {
+    echo "Reloading $NAME"
+    $PM2 reload all
+}
+
+status() {
+    echo "Status for $NAME:"
+    $PM2 list
+    RETVAL=$?
+}
+
+case "$1" in
+    start)
+        start
+        ;;
+    stop)
+        stop
+        ;;
+    status)
+        status
+        ;;
+    restart)
+        restart
+        ;;
+    reload)
+        reload
+        ;;
+    *)
+        echo "Usage: {start|stop|status|restart|reload}"
+        exit 1
+        ;;
+esac
+exit $RETVAL