check_webservice_load.sh: add parameter 'CONFLICTING_SCRIPTS' - don't run this script if anny given conflicting scripts are running.

check_webservice_load.sh

@@ -24,21 +24,6 @@ check_website=false
 ommit_curl_check_nginx=false
 vserver_guest=false
 
-if [[ ! -f "$conf_file" ]]; then
-   echo ""
-   echo -e "   [ Fatal ] Configuration file '$(basename ${conf_file})' not found!"
-   echo ""
-   echo -e "\tScript terminated.."
-   echo ""
-   exit 1
-else
-   source "$conf_file"
-fi
-   
-
-
-
-
 # - Lock directory exists, until the script ends. So
 # - we can check, if a previos instanze is already  running.
 # -
@@ -52,6 +37,16 @@ LOCK_DIR=`mktemp -d`
 #-----------------------------
 #---------------------------------------
 
+clean_up() {
+
+   # Perform program exit housekeeping
+   rm -rf "$LOCK_DIR"
+   if $LOGGING ; then
+      echo ""
+   fi
+   exit $1
+}
+
 fatal(){
    echo ""
    if $terminal ; then
@@ -141,6 +136,103 @@ trim() {
     echo -n "$var"
 }
 
+## - #---------------------------------------
+## - #-----------------------------
+## - # Job is already running?
+## - #-----------------------------
+## - #---------------------------------------
+## - 
+## - ## - If job already runs, stop execution..
+## - ## -
+## - if mkdir "$LOCK_DIR" 2> /dev/null ; then
+## - 
+## -    ## - Remove lockdir when the script finishes, or when it receives a signal
+## -    trap 'rm -rf "$LOCK_DIR"' 0 2 15
+## - 
+## - else
+## - 
+## -    datum=`date +"%d.%m.%Y"`
+## - 
+## -    msg="[ Error ]: A previos instance of \"`basename $0`\" seems already be running.\n\tExiting now.."
+## - 
+## -    echo ""
+## -    echo "[ Error ]: A previos instance of that script \"`basename $0`\" seems already be running."
+## -    echo ""
+## -    echo -e "\tExiting now.."
+## -    echo ""
+## - 
+## -    for _to_address in $to_addresses ; do
+## -       echo -e "To:${_to_address}\n${content_type}\nSubject:Error cronjob `basename $0` -- $datum\n${msg}\n" \
+## -          | sendmail -F "Error `hostname -f`" -f $from_address $_to_address
+## -    done
+## - 
+## -    exit 1
+## - 
+## - fi
+
+## - Remove lockdir when the script finishes, or when it receives a signal
+trap 'rm -rf "$LOCK_DIR"' 0 2 15
+
+# -------------
+# --- Read Configurations from $conf_file
+# -------------
+
+# Some default values
+#
+DEFAULT_CONFLICTING_SCRIPTS="/root/bin/monitoring/check_local_webservice.sh:/tmp/check_local_webservice.LOCK"
+
+if [[ ! -f "$conf_file" ]]; then
+   echo ""
+   echo -e "   [ Fatal ] Configuration file '$(basename ${conf_file})' not found!"
+   echo ""
+   echo -e "\tScript terminated.."
+   echo ""
+   clean_up 1
+else
+   source "$conf_file"
+fi
+
+[[ -n "$CONFLICTING_SCRIPTS" ]] || CONFLICTING_SCRIPTS="$DEFAULT_CONFLICTING_SCRIPTS"
+
+
+# - Stop here, if these give scripts are running
+# -
+if [[ ${#CONFLICTING_SCRIPTS} -gt 0 ]] ; then
+
+   _stop_running=false
+   for _val in $CONFLICTING_SCRIPTS ; do
+
+      IFS=':' read -a _val_arr <<< "${_val}"
+
+      _script_name="$(basename ${_val_arr[0]})"
+
+      if [[ -n "${_val_arr[1]}" ]] && [[ -d "${_val_arr[1]}" ]] ; then
+         _stop_running=true
+      else
+
+         check_string_ps="${_val_arr[0]}"
+
+         if ps -e f | grep -E "\s+${check_string_ps}" | grep -v grep | grep -v -E "\s+vim\s+" > /dev/null ; then
+            _stop_running=true
+         fi
+      fi
+
+      if $_stop_running ; then
+
+         echo ""
+         echo "[ Error ]: The \"${_script_name}\" script is currently running, but it conflicts with this script."
+         echo ""
+         echo "           Exiting now.."
+         echo ""
+
+         clean_up 1
+
+      fi
+
+      
+   done
+fi
+
 
 #---------------------------------------
 #-----------------------------
@@ -564,43 +656,6 @@ if $check_website ; then
    fi
 fi
 
-## - #---------------------------------------
-## - #-----------------------------
-## - # Job is already running?
-## - #-----------------------------
-## - #---------------------------------------
-## - 
-## - ## - If job already runs, stop execution..
-## - ## -
-## - if mkdir "$LOCK_DIR" 2> /dev/null ; then
-## - 
-## -    ## - Remove lockdir when the script finishes, or when it receives a signal
-## -    trap 'rm -rf "$LOCK_DIR"' 0 2 15
-## - 
-## - else
-## - 
-## -    datum=`date +"%d.%m.%Y"`
-## - 
-## -    msg="[ Error ]: A previos instance of \"`basename $0`\" seems already be running.\n\tExiting now.."
-## - 
-## -    echo ""
-## -    echo "[ Error ]: A previos instance of that script \"`basename $0`\" seems already be running."
-## -    echo ""
-## -    echo -e "\tExiting now.."
-## -    echo ""
-## - 
-## -    for _to_address in $to_addresses ; do
-## -       echo -e "To:${_to_address}\n${content_type}\nSubject:Error cronjob `basename $0` -- $datum\n${msg}\n" \
-## -          | sendmail -F "Error `hostname -f`" -f $from_address $_to_address
-## -    done
-## - 
-## -    exit 1
-## - 
-## - fi
-
-## - Remove lockdir when the script finishes, or when it receives a signal
-trap 'rm -rf "$LOCK_DIR"' 0 2 15
-
 
 #---------------------------------------
 #-----------------------------
@@ -2256,4 +2311,4 @@ if $check_website ; then
 
 fi
 
-exit 0
+clean_up 0

conf/check_webservice_load.conf.sample

@@ -14,6 +14,25 @@
 # ---
 
 
+# - CONFLICTING_SCRIPTS
+# -
+# - The scripts listed here conflict with this script. If one of these scripts 
+# - is currently running, this script will be stopped.
+# -
+# - In addition to the script, a LOCK directory can also be specified which is 
+# - connected to it. 
+# - 
+# - Example:
+# -    CONFLICTING_SCRIPTS="
+# -       /root/bin/monitoring/check_webservice_load.sh
+# -       /root/bin/monitoring/check_remote_websites.sh:/tmp/check_remote_websites.LOCK
+# -
+# - Defaults to:
+# -    CONFLICTING_SCRIPTS="/root/bin/monitoring/check_local_webservice.sh:/tmp/check_local_webservice.LOCK"
+# -
+#CONFLICTING_SCRIPTS=""
+
+
 # - What to check
 # -
 check_load=true