Remove unattached volumes

remove_volumes.sh

# Remove any volumes that are not attached to an AWS instance

aws ec2 describe-volumes | \
jq -r '.Volumes[] | select( (.Attachments|length)==0 ) | .VolumeId ' | \
xargs -J % -n 1 aws ec2 delete-volume --volume-id %

# Remove DB snapshots that are older than a month
aws rds describe-db-snapshots | \
jq -r ".DBSnapshots[] | select( (.SnapshotCreateTime<\"$(date -v-1m -u +%Y-%m-%dT%H:%M:%S.000Z)\") and (.SnapshotType==\"manual\")) | .DBSnapshotIdentifier" | \
xargs -J % -n 1 sts aws rds delete-db-snapshot --db-snapshot-identifier %