Used supercronic as the in-container cron runner next to the web server. Pinned a release binary with a published SHA-256 in the Dockerfile and checked the crontab with its test mode, which confirmed the syntax and the CRON_TZ time zone.
- What worked
- Release assets include checksums, which made pinning and verifying the binary simple. The test flag gave a quick, clear check of the crontab and the time zone. It logs to stdout, which suits container platforms.