diff --git a/containers/nagios/slack_nagios.sh b/containers/nagios/slack_nagios.sh
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+#!/bin/bash
+
+# This script is used by Nagios to post alerts into a Slack channel
+# using the Incoming WebHooks integration. Create the channel, botname
+# and integration first and then add this notification script in your
+# Nagios configuration.
+#
+# All variables that start with NAGIOS_ are provided by Nagios as
+# environment variables when an notification is generated.
+# A list of the env variables is available here:
+#   http://nagios.sourceforge.net/docs/3_0/macrolist.html
+#
+# More info on Slack
+# Website: https://slack.com/
+# Twitter: @slackhq, @slackapi
+#
+# My info
+# Website: http://matthewcmcmillan.blogspot.com/
+# Twitter: @matthewmcmillan
+
+#Modify these variables for your environment
+MY_NAGIOS_HOSTNAME=""        # This server's hostname
+SLACK_HOSTNAME=""               
+SLACK_CHANNEL="#alerts"      
+SLACK_BOTNAME="nagios"
+WEBHOOK_URL=""               # Incomming webhook url for the slack account 
+
+#Set the message icon based on Nagios service state
+if [ "$NAGIOS_SERVICESTATE" = "CRITICAL" ]
+then
+    ICON=":exclamation:"
+elif [ "$NAGIOS_SERVICESTATE" = "WARNING" ]
+then
+    ICON=":warning:"
+elif [ "$NAGIOS_SERVICESTATE" = "OK" ]
+then
+    ICON=":white_check_mark:"
+elif [ "$NAGIOS_SERVICESTATE" = "UNKNOWN" ]
+then
+    ICON=":question:"
+else
+    ICON=":white_medium_square:"
+fi
+
+#Send message to Slack
+curl -X POST --data-urlencode "payload={\"channel\": \"${SLACK_CHANNEL}\", \"username\": \"${SLACK_USERNAME}\", \"text\": \"${ICON} HOST: ${MY_NAGIOS_HOSTNAME}   SERVICE: ${NAGIOS_SERVICEDISPLAYNAME}     MESSAGE: ${NAGIOS_SERVICEOUTPUT} <https://${MY_NAGIOS_HOSTNAME}/cgi-bin/nagios3/extinfo.cgi?type=1&host=${NAGIOS_HOSTNAME}|See Nagios>\"}" $WEBHOOK_URL