PVC query error

[hegedussz]

If there is an error during a query, return the PVC check error value

root@ubuntu-jammy:/home/ ./check_kubernetes.sh -K k8s-dev.yaml -m pvc
parse error: Invalid numeric literal at line 1, column 667757
OK. No problems on  pvc

If there is an error during a query, return the PVC check error value:

The problem is that such an error can occur during a query:

Error from server (ServiceUnavailable): error trying to reach service: dial tcp 192.168.2.57:10250: i/o timeout

Error from server (ServiceUnavailable): error trying to reach service: dial tcp 192.168.4.132:10250: connect: no route to host

If the cluster member is unavailable then the PVC check does not return an appropriate response

The relevant detail:

data=$(for node in "${nodes[@]}"; do getJSON "api/v1/nodes/$node/proxy/stats/summary"; done)