Django Health Check: Endpoint, Probes and Alerts
A django health check should verify the database, cache and broker, answer 503 when one is gone, and be watched from outside your own cluster.
#tutorial
30 posts tagged "Tutorial".
Prometheus Blackbox Exporter: Setup and Blind Spots
A working Prometheus blackbox exporter config, the relabel rules that trip people up, and the vantage-point problem no tutorial mentions.
Load Balancer Health Check: Settings That Matter
A load balancer health check decides which backends get traffic. Here are the four parameters, the shallow-versus-deep trap, and what to return.
Kubernetes Health Check: Probes, Timing, Blind Spots
A kubernetes health check has three forms and three consequences. Here are the handlers, the timing arithmetic, and the restart storm to avoid.
Health Check Endpoint Design: What It Should Return
A health check endpoint answers one question for one caller. Here is how to pick the caller, choose 200 or 503, and keep the wrong things out of the body.
Docker Health Check: Syntax, Compose, and Gotchas
A docker health check tells the daemon whether your container can still serve. Here is the syntax, the Compose ordering trick, and what it cannot see.