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feat(aws garbage collector) skips snapshots in use #1557

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merged 1 commit into from
Nov 29, 2024
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feat(aws garbage collector) skips snapshots in use #1557

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26 changes: 21 additions & 5 deletions cleanup/aws_snapshots.sh
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
#!/bin/bash

set -eu -o pipefail
set -eux -o pipefail

run_aws_ec2_command() {
# Check the DRYRUN environment variable
Expand Down Expand Up @@ -47,10 +47,26 @@ snapshot_ids="$(aws ec2 describe-snapshots \
--region=us-east-2 \
| jq -r '.[][]')"

if [ -n "${snapshot_ids}" ]
then
export -f run_aws_ec2_command
echo "${snapshot_ids}" | parallel --halt-on-error never --no-run-if-empty run_aws_ec2_command delete-snapshot --snapshot-id {} :::
if [ -n "${snapshot_ids}" ]; then
echo "== Found the following snapshots for potential deletion:"
echo "${snapshot_ids}"
echo "======"

for snapshot_id in ${snapshot_ids}; do
echo "== Checking if snapshot ${snapshot_id} is in use..."
# Check if the snapshot is in use by querying associated AMIs
if aws ec2 describe-images --filters "Name=block-device-mapping.snapshot-id,Values=${snapshot_id}" --query 'Images[*].ImageId' --output text | grep -q .; then
echo "[INFO] Snapshot ${snapshot_id} is in use by an AMI. Skipping."
else
# Only attempt to delete if the snapshot is not in use
echo "== Snapshot ${snapshot_id} is not in use. Proceeding with deletion."
if run_aws_ec2_command delete-snapshot --snapshot-id "${snapshot_id}"; then
echo "== Snapshot ${snapshot_id} successfully deleted."
else
echo "[ERROR] Failed to delete snapshot ${snapshot_id}."
fi
fi
done
else
echo "== No dangling snapshots found to delete."
fi
Expand Down