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step_start_vm.go
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step_start_vm.go
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package proxmox
import (
"context"
"fmt"
"log"
"github.com/Telmate/proxmox-api-go/proxmox"
"github.com/hashicorp/packer/helper/multistep"
"github.com/hashicorp/packer/packer"
)
// stepStartVM takes the given configuration and starts a VM on the given Proxmox node.
//
// It sets the vmRef state which is used throughout the later steps to reference the VM
// in API calls.
type stepStartVM struct{}
func (s *stepStartVM) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
ui := state.Get("ui").(packer.Ui)
client := state.Get("proxmoxClient").(*proxmox.Client)
c := state.Get("config").(*Config)
agent := 1
if c.Agent == false {
agent = 0
}
ui.Say("Creating VM")
config := proxmox.ConfigQemu{
Name: c.VMName,
Agent: agent,
Description: "Packer ephemeral build VM",
Memory: c.Memory,
QemuCores: c.Cores,
QemuSockets: c.Sockets,
QemuOs: c.OS,
QemuIso: c.ISOFile,
QemuNetworks: generateProxmoxNetworkAdapters(c.NICs),
QemuDisks: generateProxmoxDisks(c.Disks),
}
if c.VMID == 0 {
ui.Say("No VM ID given, getting next free from Proxmox")
for n := 0; n < 5; n++ {
id, err := proxmox.MaxVmId(client)
if err != nil {
log.Printf("Error getting max used VM ID: %v (attempt %d/5)", err, n+1)
continue
}
c.VMID = id + 1
break
}
if c.VMID == 0 {
err := fmt.Errorf("Failed to get free VM ID")
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
}
vmRef := proxmox.NewVmRef(c.VMID)
vmRef.SetNode(c.Node)
err := config.CreateVm(vmRef, client)
if err != nil {
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
// Store the vm id for later
state.Put("vmRef", vmRef)
ui.Say("Starting VM")
_, err = client.StartVm(vmRef)
if err != nil {
err := fmt.Errorf("Error starting VM: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
return multistep.ActionContinue
}
func generateProxmoxNetworkAdapters(nics []nicConfig) proxmox.QemuDevices {
devs := make(proxmox.QemuDevices)
for idx := range nics {
devs[idx] = make(proxmox.QemuDevice)
setDeviceParamIfDefined(devs[idx], "model", nics[idx].Model)
setDeviceParamIfDefined(devs[idx], "macaddr", nics[idx].MACAddress)
setDeviceParamIfDefined(devs[idx], "bridge", nics[idx].Bridge)
setDeviceParamIfDefined(devs[idx], "tag", nics[idx].VLANTag)
}
return devs
}
func generateProxmoxDisks(disks []diskConfig) proxmox.QemuDevices {
devs := make(proxmox.QemuDevices)
for idx := range disks {
devs[idx] = make(proxmox.QemuDevice)
setDeviceParamIfDefined(devs[idx], "type", disks[idx].Type)
setDeviceParamIfDefined(devs[idx], "size", disks[idx].Size)
setDeviceParamIfDefined(devs[idx], "storage", disks[idx].StoragePool)
setDeviceParamIfDefined(devs[idx], "storage_type", disks[idx].StoragePoolType)
setDeviceParamIfDefined(devs[idx], "cache", disks[idx].CacheMode)
setDeviceParamIfDefined(devs[idx], "format", disks[idx].DiskFormat)
}
return devs
}
func setDeviceParamIfDefined(dev proxmox.QemuDevice, key, value string) {
if value != "" {
dev[key] = value
}
}
type startedVMCleaner interface {
StopVm(*proxmox.VmRef) (string, error)
DeleteVm(*proxmox.VmRef) (string, error)
}
var _ startedVMCleaner = &proxmox.Client{}
func (s *stepStartVM) Cleanup(state multistep.StateBag) {
vmRefUntyped, ok := state.GetOk("vmRef")
// If not ok, we probably errored out before creating the VM
if !ok {
return
}
vmRef := vmRefUntyped.(*proxmox.VmRef)
// The vmRef will actually refer to the created template if everything
// finished successfully, so in that case we shouldn't cleanup
if _, ok := state.GetOk("success"); ok {
return
}
client := state.Get("proxmoxClient").(startedVMCleaner)
ui := state.Get("ui").(packer.Ui)
// Destroy the server we just created
ui.Say("Stopping VM")
_, err := client.StopVm(vmRef)
if err != nil {
ui.Error(fmt.Sprintf("Error stop VM. Please stop and delete it manually: %s", err))
return
}
ui.Say("Deleting VM")
_, err = client.DeleteVm(vmRef)
if err != nil {
ui.Error(fmt.Sprintf("Error deleting VM. Please delete it manually: %s", err))
return
}
}