crypto.performancewest.net kept going down because the shkeeper-deployment web
pod periodically HANGS (HTTP server deadlocks while the apscheduler background
thread keeps the process alive). The helm chart (shkeeper-1.7.15) ships NO
liveness or readiness probe, so k8s saw the hung pod as Running and never
restarted it, and kept routing traffic to the dead backend -> site down until a
manual restart.
Added HTTP probes on / :5000 (302 = healthy): liveness auto-restarts a hung pod,
readiness pulls it from the Service endpoints. Applied live via kubectl patch
(chart does not expose probes via values; re-apply after any helm upgrade --
command in the file header). Verified: new pod comes up READY 1/1 (probe passes)
and crypto.performancewest.net serves 302 again.
