Traefik Health Check: Ping, Backends and the Edge
A traefik health check means two different things: the proxy's own ping endpoint and the backend checks that drain a server. Here is how to wire both.
#docker
7 posts tagged "Docker".
MySQL Health Check: The Two Probes That Lie
A mysql health check built on mysqladmin ping reports success with the wrong password, and a socket probe matches the temporary server on first boot.
Docker Monitoring Tools: Sorted by What They Read
Docker monitoring tools split by data source: engine state, cgroup counters, the log driver, and the one check that runs outside the host.
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.
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.
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.