The output from a liveness probe failure when using exec does not show up in the kubelet event logs (kubernetes version 1.3.2).
For example, I created a pod from the liveness probe example here: http://kubernetes.io/docs/user-guide/liveness/
Using exec-liveness.yaml, I do not get any output from why the Liveness probe failed:
Events:
FirstSeen LastSeen Count From SubobjectPath TypeReason Message
--------- -------- ----- ---- ------------- -------- ------ -------
1m 1m 1 {default-scheduler } Normal Scheduled Successfully assigned liveness-exec to my-node
1m 1m 1 {kubelet my-node} spec.containers{liveness} Normal Pulling pulling image "gcr.io/google_containers/busybox"
1m 1m 1 {kubelet my-node} spec.containers{liveness} Normal Pulled Successfully pulled image "gcr.io/google_containers/busybox"
1m 1m 1 {kubelet my-node} spec.containers{liveness} Normal Created Created container with docker id e84949417706
1m 1m 1 {kubelet my-node} spec.containers{liveness} Normal Started Started container with docker id e84949417706
44s 24s 3 {kubelet my-node} spec.containers{liveness} Warning Unhealthy Liveness probe failed:
