check_elasticsearch_health (edouard.lamoine)

The elasticsearch cat API (since at least v2.x) supports asking for simple status -- this will return just green / yellow / red: http://localhost:9200/_cat/health?h=st'

We also use Shield, and are using this now: --- #!/bin/bash ################################################################# # Creation: Edouard Lamoine # Last Modification: 27 mai 2015 # This script is verifying the elasticsearch status # # USAGE: ./check_elasticsearch_health HOST_ADDRESS # # ex: ./check_elasticsearch_health localhost # with Shield: # ./check_elasticsearch localhost monitoring_user secret password # # ################################################################# #Memo for Nagios outputs #STATE_OK=0 #STATE_WARNING=1 #STATE_CRITICAL=2 #STATE_UNKNOWN=3 type curl >/dev/null 2>&1 || { echo >&2 "This plugin require curl but it's not installed."; exit 3; } function usage { echo "Usage: $(basename $0) HOST_ADDRESS USERNAME PASSWORD" } HOST=$1 USERNAME=$2 PASSWORD=$3 if [ -z $USERNAME -a -z $PASSWORD ] then CREDENTIALS="" else CREDENTIALS=" -u $USERNAME:$PASSWORD" fi STATUS=`/usr/bin/curl $CREDENTIALS -s $HOST:9200/_cluster/health?pretty|grep status|awk '{print $3}'|cut -d" -f2` if [[ $STATUS && "$STATUS" != "green" ]]; then echo "CRITICAL - Status is $STATUS" exit 2 fi if [[ "$STATUS" == "green" ]]; then echo "OK - Status is $STATUS" exit 0 fi echo "UNKNOWN - No data were returned by elastisearch on host $HOST" exit 3

I can't get this to work! This is how I'm trying: #./check_elasticsearch_health localhost CRITICAL - Status is 401 [root@logs:~] # I think it's because I have shield in place: #curl -uadmin:$ES_PASS localhost:9200/_cluster/health?pretty { "cluster_name" : "elasticsearch", "status" : "green", "timed_out" : false, "number_of_nodes" : 3, "number_of_data_nodes" : 3, "active_primary_shards" : 14, "active_shards" : 28, "relocating_shards" : 0, "initializing_shards" : 0, "unassigned_shards" : 0, "delayed_unassigned_shards" : 0, "number_of_pending_tasks" : 0, "number_of_in_flight_fetch" : 0, "task_max_waiting_in_queue_millis" : 0, "active_shards_percent_as_number" : 100.0 } If I remove shield (temporarily) I can get a status: #./check_elasticsearch_health localhost CRITICAL - Status is yellow Does the script work with shield? What are the flags I can pass to it?