Health Check – ITFROMZERO – Share tobe shared!

Greenboot on Fedora IoT and CoreOS: Automatic Health Checks and Rollback on Failed Updates

By admin June 15, 2026

Greenboot automatically runs health check scripts after every boot on Fedora IoT and CoreOS — if the system is unhealthy, it rolls back to the previous deployment after 3 consecutive failures. This guide covers installation, writing real-world check scripts, and how to test rollback without waiting for an actual failed update.

Monitoring

Gatus: Automated Endpoint, Website, and API Monitoring with Status Page and Telegram Alerts

By admin June 13, 2026

Gatus is a lightweight endpoint monitoring tool configured entirely in YAML, with a built-in Status Page and Telegram alerts. This guide covers installation with Docker, configuring HTTP/TCP/DNS checks, and setting up automatic alerts when a service goes down.

Docker

Docker Compose: Wait for DB to be Fully “Healthy” Before Starting App with Health Checks

By admin April 27, 2026

Don't let your app crash just because the database starts slowly. Learn to combine depends_on and healthcheck in Docker Compose to control container startup order like a pro.