Would you prune these container images?

Situation

A Docker host is low on disk and the team wants to remove old images before a deployment.

Environment

Production Docker host with mixed application images.

Select suspicious lines in the terminal to flag them before submitting your verdict.

pending review

#!/bin/bash
set -euo pipefail
docker images --filter "before=app:v2.1" --format "{{.ID}}" > /tmp/old-images.txt
test -s /tmp/old-images.txt || exit 0
cat /tmp/old-images.txt | xargs -r docker rmi -f
echo "Image prune complete"
echo "Disk space reclaimed"
exit 0