Bug 1841556

Description of problem:

Note:
------------
This is a summary provided from mmartinv/Olimp/Alejandro discussion from: https://bugzilla.redhat.com/show_bug.cgi?id=1838559
https://bugzilla.redhat.com/show_bug.cgi?id=1829153

Test Scenario
===========================

Engine versions tested:
----------------------------------
oVirt Engine: Software Version:4.3.9.4-1.el7
RHVM: Software Version:4.3.7.2-0.1.el7
RHVM: Software Version:4.3.9.4-1.el7


How I have created the nics?
--------------------------------
- Engine Administrator portal -> Network -> Networks -> New
             Name: nic${number}

  * I have repeated that for 15 times. 

- Engine Administrator portal -> Network -> Networks
        * On NIC 10 -> Edit -> Set nameserver to 8.8.8.8  (or multiple nameservers if you prefer)


Run the tool:
-----------------------
$ go get github.com/ovirt/go-ovirt
$ go run reproducer.go (bellow the code)

<snip>
2020/05/29 08:59:05 Parsed network list:
2020/05/29 08:59:05 nic1
2020/05/29 08:59:05 nic10            <---------- only two
    

Workaround
-----------------------------------
$ vi ~/go/src/github.com/ovirt/go-ovirt/readers.go 
<line>14234

-     case "name_servers":
+     case "name_server":


$  go build github.com/ovirt/go-ovirt
>>>>>>
2020/05/29 09:03:17 Parsed network list:
2020/05/29 09:03:17 nic1
2020/05/29 09:03:17 nic10
2020/05/29 09:03:17 nic11
2020/05/29 09:03:17 nic12
2020/05/29 09:03:17 nic13
2020/05/29 09:03:17 nic14
2020/05/29 09:03:17 nic15
2020/05/29 09:03:17 nic2
2020/05/29 09:03:17 nic3
2020/05/29 09:03:17 nic4
2020/05/29 09:03:17 nic5
2020/05/29 09:03:17 nic6
2020/05/29 09:03:17 nic7
2020/05/29 09:03:17 nic8
2020/05/29 09:03:17 nic9
2020/05/29 09:03:17 ovirtmgmt



// reproducer.go
package main

import (
    "log"
    "time"

    ovirtsdk4 "github.com/ovirt/go-ovirt"
)

func main() {
    inputRawURL := "https://engine.medogz.home/ovirt-engine/api"
    conn, err := ovirtsdk4.NewConnectionBuilder().
        URL(inputRawURL).
        Username("admin@internal").
        Password("mysuperpassword").
        Insecure(true).
        Compress(true).
        LogFunc(log.Printf).
        Timeout(time.Second * 10).
        Build()
    if err != nil {
        log.Printf("Make connection failed, reason: %v\n", err)
        return
    }
    defer conn.Close()

    defer func() {
        if err := recover(); err != nil {
            log.Printf("Panics occurs, try the non-Must methods to find the reason")
        }
    }()

    networksService := conn.SystemService().NetworksService()

    networksResponse, err := networksService.List().Send()
    if err != nil {
        log.Printf("Failed to get network list, reason: %v\n", err)
        return
    }

    log.Printf("Parsed network list:")
    if networks, ok := networksResponse.Networks(); ok {
        for _, network := range networks.Slice() {
            if networkName, ok := network.Name(); ok {
                log.Printf("%v\n", networkName)
            }
        }
    }
}