Tag (2)
monitoring
- Field Report // NO. 028
How I built a flight monitor that watched my actual flight
A departure board tells you a flight is delayed and never tells you whether to worry. I built a self-terminating monitor that watched my flight through a storm-delayed evening at JFK, stayed silent until it mattered, delivered once at wheels-up and deleted its own cron. Here is the reproducible pattern.
- Tradecraft // NO. 016
The .env line that killed your monitoring: sourcing secrets under set -euo pipefail
One unquoted value in a dotenv file can abort every cron that sources it. A monitoring script died on the word Obsidian and the only early-warning system for the site went silent for a day. Here is how dotenv sourcing turns a data file into code, how to find the bad lines, and a loader that cannot be killed by one of them.