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#!/bin/bash

#declare cpuutil=6.99921021

starttime=$(date -d '6 hour ago' +%FT%T)

endtime=$(date +%FT%T)

freeablemem=$(aws cloudwatch get-metric-statistics --metric-name FreeableMemory --start-time $starttime --end-time $endtime --period 3600 --namespace AWS/RDS --statistics Average --dimensions --query Datapoints[0].Average | cut -d . -f 1 )

cpuutil=$(aws cloudwatch get-metric-statistics --metric-name CPUUtilization --start-time $starttime --end-time $endtime --period 3600 --namespace AWS/RDS --statistics Average --dimensions --query Datapoints[0].Average | cut -d . -f 1 )

dbcon=$(aws cloudwatch get-metric-statistics --metric-name DatabaseConnections --start-time $starttime --end-time $endtime --period 3600 --namespace AWS/RDS --statistics Average --dimensions --query Datapoints[0].Average | cut -d . -f 1 )

#echo -e "CPUUtilization:$cpuutil"

#echo -e "DatabaseConnections:$dbcon"

#echo -e "FreeableMemory:$freeablemem"

low=10

output="Load Average: $cpuutil | DatabaseConnections:$dbcon | FreeableMemory:$freeablemem"

if [ "$cpuutil" -le "$low" ]

then

echo "OK- $output"

exit 0

elif [ "$cpuutil" -ge '15' ]

then

mail -s "RDS WARNING " -c "[email protected]" "[email protected]" <<< " RDS WARNING - $output" &&

echo "WARNING- $output"

exit 1

elif [ "$cpuutil" -ge "30" ]

then

mail -s "RDS CRITICAL " -c "[email protected]" "[email protected]" <<< " RDS CRITICAL- $output" &&

echo "CRITICAL - $output"

exit 2

else

echo 'UNKNOWN - $output'

exit 3

fi