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package dns
import (
"fmt"
"time"
"github.com/crc-org/crc/v2/pkg/crc/network"
"github.com/crc-org/crc/v2/pkg/crc/services"
winnet "github.com/crc-org/crc/v2/pkg/os/windows/network"
"github.com/crc-org/crc/v2/pkg/os/windows/powershell"
"github.com/crc-org/crc/v2/pkg/os/windows/win32"
crcstrings "github.com/crc-org/crc/v2/pkg/strings"
)
const (
// Alternative
AlternativeNetwork = "crc"
)
func runPostStartForOS(serviceConfig services.ServicePostStartConfig) error {
if serviceConfig.NetworkMode == network.UserNetworkingMode {
return addOpenShiftHosts(serviceConfig)
}
_, switchName := winnet.SelectSwitchByNameOrDefault(AlternativeNetwork)
networkInterface := fmt.Sprintf("vEthernet (%s)", switchName)
setInterfaceNameserverValue(networkInterface, serviceConfig.IP)
time.Sleep(2 * time.Second)
if !crcstrings.Contains(getInterfaceNameserverValues(networkInterface), serviceConfig.IP) {
return fmt.Errorf("Nameserver %s not successfully set on interface %s. Perhaps you can try this new network mode: https://github.com/crc-org/crc/wiki/VPN-support--with-an--userland-network-stack", serviceConfig.IP, networkInterface)
}
return nil
}
func getInterfaceNameserverValues(iface string) []string {
getDNSServerCommand := fmt.Sprintf(`(Get-DnsClientServerAddress "%s")[0].ServerAddresses`, iface)
stdOut, _, _ := powershell.Execute(getDNSServerCommand)
return crcstrings.SplitLines(stdOut)
}
func setInterfaceNameserverValue(iface string, address string) {
exe := "netsh"
args := fmt.Sprintf(`interface ip set dns "%s" static %s primary`, iface, address)
// ignore the error as this is useless (prefer not to use nolint here)
_ = win32.ShellExecuteAsAdmin(fmt.Sprintf("add dns server address to interface %s", iface), win32.HwndDesktop, exe, args, "", 0)
}
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