prune-snapshots

gistfile1.txt

#!/bin/bash
source /etc/profile

set -x

CMD_SNAPSHOT_DESCRIBE=ec2-describe-snapshots
CMD_SNAPSHOT_DELETE=ec2-delete-snapshot
CMD_TAG_DESCRIBE=ec2-describe-tags
CMD_TAG_CREATE=ec2-create-tags
REGIONS="sa-east-1"



for region in $REGIONS; do
    snapshots=( $($CMD_SNAPSHOT_DESCRIBE --region $region --filter "start-time=$(date --date="2 week ago" +%Y-%m-%d*)" | grep "SNAPSHOT" | awk '{ print $2 }'  ))

        # Snapshots initiated, delete old snapshots
        echo -e "Snapshots initiated, delete old snapshots...\r"
        for snapshot in ${snapshots[@]}
        do
                result=$($CMD_SNAPSHOT_DELETE --region $region "$snapshot" 2>&1)
                echo $result
                # This does not currently work as the result of the delete command cannot be captured
                if [[ "$result" == *"Client.InvalidSnapshot.InUse"* ]]; then
                        echo -e "  Error: Could not delete snapshot $snapshot because it is currently in use by an AMI, renaming accorindgly."
                        volume_id=$($CMD_SNAPSHOT_DESCRIBE --region $region "$snapshot" | grep "SNAPSHOT" | awk '{print $3}')
                        volume_name=`$CMD_TAG_DESCRIBE --region $region --filter "resource-id=$volume_id" --filter "key=Name" | cut -f5`
                        current_date=$(date +%Y-%m-%d)
                        snapshot_label="$current_date: [AMI] $volume_name"
                        echo -e "   Labeling snapshot $snapshot as \"$snapshot_label\""
                        $CMD_TAG_CREATE $snapshot --region $region --tag "Name=$snapshot_label"
                fi
        done
done