}

func backends(storageConfig storagebackend.Config, grOverrides map[schema.GroupResource]groupResourceOverrides) []Backend {
	servers := sets.NewString(storageConfig.Transport.ServerList...)

	for _, overrides := range grOverrides {
		servers.Insert(overrides.etcdLocation...)
	}

	tlsConfig := &tls.Config{
		InsecureSkipVerify: true,
	}

			continue
		}
		// TODO validation when multiple wildcard tls secrets are given
		if len(tls.Hosts) == 0 {
			tls.Hosts = []string{"*"}
		}
		gateway.Servers = append(gateway.Servers, &networking.Server{
			Port: &networking.Port{
				Number:   443,
				Protocol: string(protocol.HTTPS),
				Name:     fmt.Sprintf("https-443-ingress-%s-%s-%d", ingress.Name, ingress.Namespace, i),
			},

### DNS

Now let's focus on all the actual HTTPS parts.

First, the browser would check with the **DNS servers** what is the **IP for the domain**, in this case, `someapp.example.com`.

The DNS servers would tell the browser to use some specific **IP address**. That would be the public IP address used by your server, that you configured in the DNS servers.

<img src="/img/deployment/https/https01.svg">

### TLS Handshake Start

	c.ext = nil
	_, _, err := c.cmd(250, "HELO %s", c.localName)
	return err
}

// ehlo sends the EHLO (extended hello) greeting to the server. It
// should be the preferred greeting for servers that support it.
func (c *Client) ehlo() error {
	_, msg, err := c.cmd(250, "EHLO %s", c.localName)
	if err != nil {
		return err
	}
	ext := make(map[string]string)
	extList := strings.Split(msg, "\n")

 * selection to the underlying SSL socket.
 *
 * The configuration of each spec changes with each OkHttp release. This is annoying: upgrading
 * your OkHttp library can break connectivity to certain web servers! But it’s a necessary annoyance
 * because the TLS ecosystem is dynamic and staying up to date is necessary to stay secure. See
 * [OkHttp's TLS Configuration History][tls_history] to track these changes.
 *

```JSON hl_lines="4-8"
{
    "openapi": "3.1.0",
    // Hier mehr Einstellungen
    "servers": [
        {
            "url": "/api/v1"
        }
    ],
    "paths": {
            // Hier mehr Einstellungen
    }
}
```

	// Such pattern is used in net/http and net/rpc.

	b.StopTimer()

	P := runtime.GOMAXPROCS(0)
	N := b.N / P
	W := 1000

	// Setup P client/server connections.
	clients := make([]net.Conn, P)
	servers := make([]net.Conn, P)
	ln, err := net.Listen("tcp", "127.0.0.1:0")
	if err != nil {
		b.Fatalf("Listen failed: %v", err)
	}
	defer ln.Close()
	done := make(chan bool, 1)
	go func() {

      exit 1
  fi

  if [[ -z "${ETCD_SERVERS:-}" ]]; then
    params_ref+=" --etcd-servers-overrides=${ETCD_SERVERS_OVERRIDES:-/events#http://127.0.0.1:4002}"
  elif [[ -n "${ETCD_SERVERS_OVERRIDES:-}" ]]; then
    params_ref+=" --etcd-servers-overrides=${ETCD_SERVERS_OVERRIDES:-}"
  fi

  if [[ -n "${STORAGE_BACKEND:-}" ]]; then
    params_ref+=" --storage-backend=${STORAGE_BACKEND}"

				t.Errorf("unexpected error")
			}

			if !reflect.DeepEqual(ipvs, test.expectedIPVS) {
				t.Logf("actual: %+v", ipvs)
				t.Logf("expected : %+v", test.expectedIPVS)
				t.Errorf("unexpected IPVS servers")
			}
		})
	}
}

func Test_RaceTerminateRSList(t *testing.T) {
	ipvs := utilipvstest.NewFake()
	gracefulTerminationManager := NewGracefulTerminationManager(ipvs)

If you are paying for 3 servers but you are using only a little bit of their RAM and CPU, you are probably **wasting money** 💸, and probably **wasting server electric power** 🌎, etc.

In that case, it could be better to have only 2 servers and use a higher percentage of their resources (CPU, memory, disk, network bandwidth, etc).