github/linuxkit
1
0
Fork 0
mirror of https://github.com/linuxkit/linuxkit.git synced 2025-07-21 01:59:07 +00:00
Code Issues Projects Releases Wiki Activity

Merge pull request #2882 from rn/hyperv

Browse Source 
cmd/hyperv: Use Default Switch if present
This commit is contained in:
Rolf Neugebauer 2018-01-24 19:20:53 +00:00 committed by GitHub
commit e743c1b027
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 13 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
src/cmd/linuxkit/run_hyperv.go
View File

@ -31,7 +31,7 @@ func runHyperV(args []string) {
var disks Disks
flags.Var(&disks, "disk", "Disk config. [file=]path[,size=1G]")
switchName := flags.String("switch", "", "Which Hyper-V switch to attache the VM to. If left empty, the first external switch found is used.")
switchName := flags.String("switch", "", "Which Hyper-V switch to attache the VM to. If left empty, either 'Default Switch' or the first external switch found is used.")
if err := flags.Parse(args); err != nil {
log.Fatal("Unable to parse args")
@ -235,14 +235,20 @@ func hypervChecks() {
// or find the first external switch.
func hypervGetSwitch(name string) (string, error) {
if name != "" {
_, _, err := poshCmd("Get-VMSwitch", name)
if err != nil {
if _, _, err := poshCmd("Get-VMSwitch", name); err != nil {
return "", fmt.Errorf("Could not find switch %s: %v", name, err)
}
return name, nil
}
out, _, err := poshCmd("get-vmswitch | Format-Table -Property Name, SwitchType -HideTableHeaders")
// The Windows 10 Fall Creators Update adds a new 'Default
// Switch'. Check if it is present and if so, use it.
name = "Default Switch"
if _, _, err := poshCmd("Get-VMSwitch", name); err == nil {
return name, nil
}
out, _, err := poshCmd("Get-VMSwitch | Format-Table -Property Name, SwitchType -HideTableHeaders")
if err != nil {
return "", fmt.Errorf("Could not get list of switches: %v", err)
}
@ -251,12 +257,12 @@ func hypervGetSwitch(name string) (string, error) {
if len(s) == 0 {
continue
}
t := strings.SplitN(s, " ", 2)
t := strings.Split(s, " ")
if len(t) < 2 {
continue
}
if strings.Contains(t[1], "External") {
return strings.Trim(t[0], " "), nil
if strings.Contains(t[len(t)-1:][0], "External") {
return strings.Join(t[:len(t)-1], " "), nil
}
}
return "", fmt.Errorf("Could not find an external switch")