k8s container restarts by namespace, pod, container, service

summarize-restarts.sh

#!/usr/bin/env bash

kubectl get pods --all-namespaces -o json | jq '[ 
  .items[] | (
    {
      namespace: .metadata.namespace, 
      pod: .metadata.name, 
      statuses: (
        [ 
          .status.containerStatuses[] | { name, ready, restartCount } 
        ] | map( select( .restartCount > 0 ) ) 
      ) 
    }
  ) | select( .statuses | length > 0 )
] | . as $original | (
  {
    namespaces: (
      reduce $original[] as $item (
        {} ; (
          if ( . | has($item.namespace) ) then ( 
            .[$item.namespace] += ( reduce $item.statuses[].restartCount as $count ( 0; . + $count  ) ) 
          ) else ( 
            .[$item.namespace] = ( reduce $item.statuses[].restartCount as $count ( 0; . + $count  ) ) 
          ) end 
        )
      )
    ),
    pods: (
      reduce $original[] as $item (
        {} ; (
          if ( . | has($item.pod) ) then ( 
            .[$item.pod] += ( reduce $item.statuses[].restartCount as $count ( 0; . + $count  ) ) 
          ) else ( 
            .[$item.pod] = ( reduce $item.statuses[].restartCount as $count ( 0; . + $count  ) ) 
          ) end 
        )
      )
    ),
    containers: (
      reduce $original[] as $item (
        {} ; (
          reduce $item.statuses[] as $status (
            . ;
            if ( . | has($status.name) ) then ( 
              .[$status.name] += $status.restartCount 
            ) else ( 
              .[$status.name] = $status.restartCount 
            ) end 
          )
        )
      )
    ),
    services: (
      reduce $original[] as $item (
        {} ; (
          reduce $item.statuses[] as $status (
            . ;
            if ( . | has("" + $status.name + "." + $item.namespace + ".svc.cluster.local") ) then ( 
              .["" + $status.name + "." + $item.namespace + ".svc.cluster.local"] += $status.restartCount 
            ) else ( 
              .["" + $status.name + "." + $item.namespace + ".svc.cluster.local"] = $status.restartCount 
            ) end 
          )
        )
      )
    ) 
  }
)'