Elastic Beanstalk AppVersions clean

eb-clean.sh

#!/bin/bash
#
# TODO: allow for region to be added

# set EB Application Name and Limit
ebAppName=${@:2}
ebAppLimit=${1:-"5"}


if [ "$#" -lt 1 ]; then
  echo "This script requires at least one argument for the number of versions to keep on beanstalk"
  echo "Usage: eb-clean <number_of_versions_to_keep> <multiple_applications_name>"
  echo "Default: 5 versions of all the applications"
  echo "ATTENTION: If no application is added this will perform a delete on ALL the applications on that region"
  exit 1
fi

if [ "$#" -lt 2 ]; then
  ebAppName=$(aws elasticbeanstalk describe-applications --output=text | grep APPLICATIONS | awk '{print $2}')
fi

# tail +$var is inclusive, so we need to increment 1 to exclude the last value of the ebAppLimit we set
tailebAppLimit=$((ebAppLimit+1))

for ebAppName in $ebAppName
do
  echo "------------------------------------"
  echo "$(date) checking app:$ebAppName with ebAppLimit:$ebAppLimit"
  # get app versions above the ebAppLimit as a list
  versions=$(aws elasticbeanstalk describe-application-versions --application-name $ebAppName --output text | grep APPLICATIONVERSIONS | tail -n +$tailebAppLimit| awk '{print $6}' | awk 'NF > 0')

  # delete obsolete versions
  for version in $versions
  do
    aws elasticbeanstalk delete-application-version --delete-source-bundle --version-label "$version" --application-name "$ebAppName"
    echo "$(date)    $ebAppName:$version deleted"
  done
done