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vm_reset.go
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vm_reset.go
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package cmd
import (
"errors"
"fmt"
"strings"
"github.com/exoscale/egoscale"
"github.com/spf13/cobra"
)
// vmResetCmd represents the stop command
var vmResetCmd = &cobra.Command{
Use: "reset <vm name> [vm name] ...",
Short: "Reset virtual machine instance",
RunE: func(cmd *cobra.Command, args []string) error {
if len(args) < 1 {
return cmd.Usage()
}
diskValue, err := getInt64CustomFlag(cmd, "disk")
if err != nil {
return err
}
force, err := cmd.Flags().GetBool("force")
if err != nil {
return err
}
errs := []error{}
for _, v := range args {
if err := resetVirtualMachine(v, diskValue, force); err != nil {
errs = append(errs, fmt.Errorf("could not reset %q: %s", v, err))
}
}
if len(errs) == 1 {
return errs[0]
}
if len(errs) > 1 {
var b strings.Builder
for _, err := range errs {
if _, e := fmt.Fprintln(&b, err); e != nil {
return e
}
}
return errors.New(b.String())
}
return nil
},
}
// resetVirtualMachine stop a virtual machine instance
func resetVirtualMachine(vmName string, diskValue int64PtrValue, force bool) error {
vm, err := getVirtualMachineByNameOrID(vmName)
if err != nil {
return err
}
if !force {
if !askQuestion(fmt.Sprintf("sure you want to reset %q virtual machine", vm.Name)) {
return nil
}
}
resp, err := cs.GetWithContext(gContext, egoscale.Volume{
VirtualMachineID: vm.ID,
Type: "ROOT",
})
if err != nil {
return err
}
volume := resp.(*egoscale.Volume)
volumeSize := volume.Size >> 30
resp, err = cs.GetWithContext(gContext, egoscale.Template{
IsFeatured: true,
ID: vm.TemplateID,
ZoneID: vm.ZoneID,
})
if err != nil {
return err
}
temp := resp.(*egoscale.Template)
tempSize := temp.Size >> 30
rootDiskSize := int64(volumeSize)
if diskValue.int64 != nil {
if *diskValue.int64 < tempSize {
return fmt.Errorf("root disk size must be greater or equal than %dGB", tempSize)
}
rootDiskSize = *diskValue.int64
}
fmt.Printf("Resetting %q ", vm.Name)
var errorReq error
cs.AsyncRequestWithContext(gContext, &egoscale.RestoreVirtualMachine{VirtualMachineID: vm.ID, RootDiskSize: rootDiskSize}, func(jobResult *egoscale.AsyncJobResult, err error) bool {
fmt.Print(".")
if err != nil {
errorReq = err
return false
}
if jobResult.JobStatus == egoscale.Success {
fmt.Println(" success.")
return false
}
return true
})
if errorReq != nil {
fmt.Println(" failure!")
}
return errorReq
}
func init() {
vmCmd.AddCommand(vmResetCmd)
diskSizeVarP := new(int64PtrValue)
vmResetCmd.Flags().VarP(diskSizeVarP, "disk", "d", "New disk size after reset in GB")
vmResetCmd.Flags().BoolP("force", "f", false, "Attempt to reset vitual machine without prompting for confirmation")
}