- Reliability
Health check
A health check is a lightweight endpoint or probe a system calls to decide whether a service is alive and ready to serve traffic. Deploy pipelines, load balancers and orchestrators use its result to gate rollouts, route requests, restart unhealthy instances and trigger rollbacks - without waiting for a real user to hit a broken build.
- Release management
Hotfix
A hotfix is an urgent, narrowly scoped patch that fixes a critical bug in software already in production. It branches off the released tag, skips the queue of pending features, is tested in isolation, and ships out-of-band - so the live system stops bleeding without waiting for the next planned release.