Redis Health Check: PING, Compose and the Lies
A redis health check built on PING alone misses eviction, replication and failed saves. Here is the compose config and the probe that catch them.
#tutorial
30 posts tagged "Tutorial".
PagerDuty Integration: Page On-Call from a Monitor
A PagerDuty integration is a service, a key and one HTTP call. Here is the Events API v2 setup, the dedup key that closes incidents, and what to page on.
MongoDB Health Check: Ping Is Not Enough
A mongodb health check built on ping misses the failure that matters: a replica set with no writable primary answers every probe and rejects every write.
Laravel Health Check: Past the Built-In /up Route
The built-in Laravel health check proves the framework booted and nothing more. Here is how to deepen it, and cover the queue and scheduler it cannot see.
HAProxy Health Check Config: Examples and Gotchas
An HAProxy health check decides which backends stay in rotation. Here are the directives that matter, sane defaults, and the failure it cannot see.
Postgres Health Check: Three Layers That Matter
A postgres health check needs three layers: pg_isready in the container, a real query behind your health route, and a port check from outside.