Simple INIT script for sidekiq

Starts and Stops Sidekiq message processor.

examples/sidekiq

@@ -0,0 +1,92 @@
+#!/bin/bash
+# sidekiq    Init script for Sidekiq
+# chkconfig: 345 100 100
+#
+# Description: Starts and Stops Sidekiq message processor for Stratus application.
+#
+# User-specified exit parameters used in this script:
+#
+# Exit Code 5 - Incorrect User ID
+# Exit Code 6 - Directory not found
+
+
+#Variable Set
+APP="stratus"
+APP_DIR="/opt/railsapps/${APP}"
+APP_CONFIG="${APP_DIR}/config"
+LOG_FILE="$APP_DIR/log/sidekiq.log"
+LOCK_FILE="$APP_DIR/${APP}-lock"
+PID_FILE="$APP_DIR/${APP}.pid"
+GEMFILE="$APP_DIR/Gemfile"
+SIDEKIQ="sidekiq"
+APP_ENV="production"
+BUNDLE="bundle"
+
+START_CMD="$BUNDLE exec $SIDEKIQ -e $APP_ENV -P $PID_FILE"
+RETVAL=0
+
+
+start() {
+
+  status
+  if [ $? -eq 1 ]; then
+
+    [ `id -u` == '0' ] || (echo "$SIDEKIQ runs as root only .."; exit 5)
+    [ -d $APP_DIR ] || (echo "$APP_DIR not found!.. Exiting"; exit 6)
+    cd $APP_DIR
+    echo "Starting $SIDEKIQ message processor .. "
+    $START_CMD >> $LOG_FILE 2>&1 &
+    RETVAL=$?
+    #Sleeping for 8 seconds for process to be precisely visible in process table - See status ()
+    sleep 8
+    [ $RETVAL -eq 0 ] && touch $LOCK_FILE
+    return $RETVAL
+  else
+    echo "$SIDEKIQ message processor is already running .. "
+  fi
+
+
+}
+
+stop() {
+
+    echo "Stopping $SIDEKIQ message processor .."
+    SIG="INT"
+    kill -$SIG `cat  $PID_FILE`
+    RETVAL=$?
+    [ $RETVAL -eq 0 ] && rm -f $LOCK_FILE
+    return $RETVAL
+}
+
+
+status() {
+
+  ps -ef | grep 'sidekiq [0-9].[0-9].[0-9]' | grep -v grep
+  return $?
+}
+
+
+case "$1" in
+    start)
+        start
+        ;;
+    stop)
+        stop
+        ;;
+    status)
+        status
+
+        if [ $? -eq 0 ]; then
+             echo "$SIDEKIQ message processor is running .."
+             RETVAL=0
+         else
+             echo "$SIDEKIQ message processor is stopped .."
+             RETVAL=1
+         fi
+        ;;
+    *)
+        echo "Usage: $0 {start|stop|status}"
+        exit 0
+        ;;
+esac
+exit $RETVAL