Run this backup verification container?

Situation

Before a scheduled maintenance window, the SRE team wants to verify that the latest automated backup is valid and readable.

Environment

Backups are stored in /backups/production/ on a backup host. The latest backup is latest.sql.gz. A nightly cron job creates these backups. The team needs a quick integrity check without restoring the full database.

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pending review

docker run --rm --name backup-verify --read-only -v /backups/production:/backups:ro -v $(pwd)/reports:/reports:rw alpine:3.19 sh -c "tar -tzf /backups/latest.sql.gz > /reports/archive-contents.txt && echo 'Backup contains ' $(wc -l < /reports/archive-contents.txt) ' objects' && zcat /backups/latest.sql.gz | head -n 1 | grep -q '^-- PostgreSQL database dump' && echo 'pgdump header confirmed'"