New monitoring stuff

bin/nginx-check.sh

@@ -0,0 +1,64 @@
+#!/bin/bash
+##################################
+# Zabbix monitoring script
+#
+# nginx:
+#  - anything available via nginx stub-status module
+#
+##################################
+# Contact:
+#  vincent.viallet@gmail.com
+##################################
+# ChangeLog:
+#  20100922	VV	initial creation
+##################################
+
+# Zabbix requested parameter
+ZBX_REQ_DATA="$1"
+ZBX_REQ_DATA_URL="$2"
+
+# Nginx defaults
+NGINX_STATUS_DEFAULT_URL="http://localhost:10061/nginx_status"
+WGET_BIN="/usr/bin/wget"
+
+#
+# Error handling:
+#  - need to be displayable in Zabbix (avoid NOT_SUPPORTED)
+#  - items need to be of type "float" (allow negative + float)
+#
+ERROR_NO_ACCESS_FILE="-0.9900"
+ERROR_NO_ACCESS="-0.9901"
+ERROR_WRONG_PARAM="-0.9902"
+ERROR_DATA="-0.9903" # either can not connect /	bad host / bad port
+
+# Handle host and port if non-default
+if [ ! -z "$ZBX_REQ_DATA_URL" ]; then
+  URL="$ZBX_REQ_DATA_URL"
+else
+  URL="$NGINX_STATUS_DEFAULT_URL"
+fi
+
+# save the nginx stats in a variable for future parsing
+NGINX_STATS=$($WGET_BIN -q $URL -O - 2> /dev/null)
+
+# error during retrieve
+if [ $? -ne 0 -o -z "$NGINX_STATS" ]; then
+  echo $ERROR_DATA
+  exit 1
+fi
+
+# 
+# Extract data from nginx stats
+#
+case $ZBX_REQ_DATA in
+  active_connections)   echo "$NGINX_STATS" | head -1             | cut -f3 -d' ';;
+  accepted_connections) echo "$NGINX_STATS" | grep -Ev '[a-zA-Z]' | cut -f2 -d' ';;
+  handled_connections)  echo "$NGINX_STATS" | grep -Ev '[a-zA-Z]' | cut -f3 -d' ';;
+  handled_requests)     echo "$NGINX_STATS" | grep -Ev '[a-zA-Z]' | cut -f4 -d' ';;
+  reading)              echo "$NGINX_STATS" | tail -1             | cut -f2 -d' ';;
+  writing)              echo "$NGINX_STATS" | tail -1             | cut -f4 -d' ';;
+  waiting)              echo "$NGINX_STATS" | tail -1             | cut -f6 -d' ';;
+  *) echo $ERROR_WRONG_PARAM; exit 1;;
+esac
+
+exit 0