removed unnecesarry variable from init.d script

lib/support/init.d/gitlab_ci_runner

@@ -14,92 +14,60 @@ APP_ROOT="/home/gitlab_ci_runner/gitlab-ci-runner"
 APP_USER="gitlab_ci_runner"
 PID_PATH="$APP_ROOT/tmp/pids"
 PROCESS_NAME="ruby ./bin/runner"
-RUNNERS_PID="$PID_PATH/runners.pid"
-RUNNERS_NUM=1 # number of runners to spawn
+RUNNER_PID="$PID_PATH/runners.pid"
 START_RUNNER="nohup bundle exec ./bin/runner"
 NAME="gitlab-ci-runner"
 DESC="GitLab CI runner"
 RUNNERS_REGISTERED=0
-RUNNERS_RUNNING=0
 INIT_LOG="/var/log/gitlab_ci_runner.log"
 check_pid() {
-  # Number of registered runners in PID file
-  [ -f $RUNNERS_PID ] && RUNNERS_REGISTERED=`cat $RUNNERS_PID | wc -l`
-
-  # Number of active runner processes
-  RUNNERS_RUNNING=`ps -ef | grep "$PROCESS_NAME" | grep -v grep | wc -l`
-
-
-  echo "Number of registered runners in PID file=$RUNNERS_REGISTERED"
-  echo "Number of running runners=$RUNNERS_RUNNING"
+  PROCESS_ID=0
+  [ -f $RUNNER_PID ] && PROCESS_ID=`cat $RUNNER_PID`
+  if [ $PROCESS_ID -ne 0 ]; then
+    echo "runner is running with PID = $PROCESS_ID"
+  fi
 }
 execute() {
   sudo -u $APP_USER -H bash -l -c "$1"
- }
+}
 start() {
   cd $APP_ROOT
   check_pid
-  if [ "$RUNNERS_REGISTERED" -ne 0 -o "$RUNNERS_RUNNING" -ne 0 ]; then
+  if [ $PROCESS_ID -ne 0 ]; then
     # Program is running, Exit with error code.
     echo "Error! $DESC(s) ($NAME) appear to be running already! Try stopping them first. Exiting."
     exit 1
   else
     if [ `whoami` = root ]; then
       [ ! -f $PID_PATH ] && execute "mkdir -p $PID_PATH"
-      [ -f $RUNNERS_PID ] && execute "rm -f $RUNNERS_PID"
-
-      # Spawn runners
-      for (( i=1; i<=$RUNNERS_NUM; i++ ))
-      do
-        # Check log file
-        if [ ! -f $INIT_LOG ]; then
-          touch $INIT_LOG
-          chown $APP_USER $INIT_LOG
-        fi
-        echo "Starting runner #$i"
-        execute "$START_RUNNER  >> $INIT_LOG 2>&1 & echo \$! >> $RUNNERS_PID"
-      done
-      echo "SUCCESS: Started $RUNNERS_NUM $DESC(s)."
+      [ -f $RUNNER_PID ] && execute "rm -f $RUNNER_PID"
+
+      
+      # Check log file
+      if [ ! -f $INIT_LOG ]; then
+        touch $INIT_LOG
+        chown $APP_USER $INIT_LOG
+      fi
+      execute "$START_RUNNER  >> $INIT_LOG 2>&1 & echo \$! >> $RUNNER_PID"
+      check_pid
     fi
-
   fi
 }
 stop() {
  check_pid
- # Exit if there are no runners
- if [ $RUNNERS_REGISTERED -eq 0 -a  $RUNNERS_RUNNING -eq 0 ]; then
-   echo "No runners have been found. Exiting."
- fi
-
- # Runners found. Check if there are any ghost runners.
- KILL_GHOSTS=0;
- if [ $RUNNERS_REGISTERED -ne $RUNNERS_RUNNING ]; then
-   echo "WARNING: Numbers of registered runners don't match number of running runners. Will try to stop them all"
-   echo "Registered runners=$RUNNERS_REGISTERED"
-   echo "Running runners=$RUNNERS_RUNNING"
-   KILL_GHOSTS=1;
- fi
-
- echo -n "Trying to stop registered runners..."
- if [ $RUNNERS_REGISTERED -gt 0 ]; then
-   execute "cat $RUNNERS_PID | xargs kill -USR2"
-   rm -f $RUNNERS_PID
+ echo -n "Trying to stop registered runner..."
+ 
+ if [ $PROCESS_ID -gt 0 ]; then
+   execute "cat $RUNNER_PID | xargs kill -USR2"
+   rm -f $RUNNER_PID
    echo "OK"
  else
    echo "FAILED!"
-   echo "Couldn't stop registered runners as there is no record of such in $RUNNERS_PID file".
- fi
-
- if [ $KILL_GHOSTS -eq 1 ]; then
-   echo -ne "Trying to kill ghost runners..."
-   ps -C "$PROCESS_NAME" -o "%p" h | xargs kill -USR2
-   [ $? -eq 0 ] && echo "OK"
- else
-   echo "No ghost runners have been found.This is good."
+   echo "Couldn't stop registered runner as there is no record of such in $RUNNER_PID file".
  fi
 }
@@ -135,5 +103,3 @@ case "$1" in
 esac
 exit 0
-
-