Swapped to container restarts over terminated reasons #2043
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What this PR does / why we need it:
There are two "terminated reason" metrics (
kube_pod_container_status_last_terminated_reasonand `kube_pod_container_status_terminated_reason) and both have blindspots. Replacing terminated reason dashboard panel with a simple container restarts metric.The dashboard will no longer clearly tell the operator why a container was restarted, but any unexpected restart is worth investigating. This metric also has more meaning as it directly indicates the number of restarts over a rolling 10 minute window.