Script to suspend and resume AWS autoscaling groups (ASG)

asg-control.bash

#!/bin/bash

TMPFILE="/tmp/asgs.temp"

function usage()
{
	echo "Usage: $0 -a {suspend|resume} -f name-filter -p profile-name"
	echo "Where: "
	echo " -a - Action - suspend or resume autoscaling."
	echo " -f - Name filter - filter for autoscaling groups. Allows you to select autoscaling groups matching a specific string."
	echo " -p - Name of the AWS CLI profile. (i.e. what you would pass to the --profile in an aws cli command)"
	exit 1
}

if [ "$#" -lt 5 ] ; then
	usage
fi

while getopts "a:f:p:" opt; do
  case $opt in
    a)
      ACTION=$OPTARG
    ;;
    f)
      NAMEFILTER=$OPTARG
    ;;
    p)
      PROFILE=$OPTARG
    ;;
    \?)
      echo "Invalid option: -$OPTARG"
      usage
    ;;
  esac
done

# Cleanup
rm -fv $TMPFILE

# Find ASGs
for asg in $(aws autoscaling describe-auto-scaling-groups --profile $PROFILE --query 'AutoScalingGroups[*].AutoScalingGroupName' --output text) ; do echo $asg ; done | grep $NAMEFILTER > $TMPFILE

# Suspend ASG
echo "About to $ACTION the following ASGs: "
cat $TMPFILE
echo "Press control-C in the next 5 seconds to abort"
sleep 6

for asg in $(cat $TMPFILE) ; do aws autoscaling ${ACTION}-processes --auto-scaling-group-name $asg --profile $PROFILE ; done
echo "Done. The AWS CLI commands don't generate any output, so if there are no errors above you should be good."
# Cleanup
echo "Cleaning up..."
rm -fv $TMPFILE

This script allows you to quickly/easily suspend and resume AWS autoscaling groups matching a specific string. Requires AWS CLI tools installed and profiles set up.

Hi,

I wanted to run this script on my aws linux instances, aws profile is already setup.
Can you help me what else do i need to setup to make this working?

Thanks

It's been ages since I've used it, but if you have a working profile that you know works with AWS cli tools, it should be as simple as:

./asg-control.bash -a suspend -f -p

Note that you need to have aws cli tools installed and working for this script to work.