107 lines
2.6 KiB
Go
107 lines
2.6 KiB
Go
package common
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import (
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"context"
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"fmt"
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"log"
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"time"
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"github.com/hashicorp/packer-plugin-sdk/bootcommand"
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"github.com/hashicorp/packer-plugin-sdk/multistep"
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packersdk "github.com/hashicorp/packer-plugin-sdk/packer"
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"github.com/hashicorp/packer-plugin-sdk/template/interpolate"
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"github.com/mitchellh/go-vnc"
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)
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// This step "types" the boot command into the VM over VNC.
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//
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// Uses:
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// http_port int
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// ui packersdk.Ui
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// vnc_port int
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//
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// Produces:
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// <nothing>
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type StepVNCBootCommand struct {
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Config bootcommand.VNCConfig
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VMName string
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Ctx interpolate.Context
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}
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type VNCBootCommandTemplateData struct {
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HTTPIP string
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HTTPPort int
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Name string
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}
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func (s *StepVNCBootCommand) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
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if s.Config.DisableVNC {
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log.Println("Skipping boot command step...")
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return multistep.ActionContinue
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}
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debug := state.Get("debug").(bool)
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httpPort := state.Get("http_port").(int)
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ui := state.Get("ui").(packersdk.Ui)
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conn := state.Get("vnc_conn").(*vnc.ClientConn)
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defer conn.Close()
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// Wait the for the vm to boot.
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if int64(s.Config.BootWait) > 0 {
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ui.Say(fmt.Sprintf("Waiting %s for boot...", s.Config.BootWait.String()))
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select {
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case <-time.After(s.Config.BootWait):
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break
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case <-ctx.Done():
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return multistep.ActionHalt
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}
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}
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var pauseFn multistep.DebugPauseFn
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if debug {
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pauseFn = state.Get("pauseFn").(multistep.DebugPauseFn)
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}
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hostIP := state.Get("http_ip").(string)
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s.Ctx.Data = &VNCBootCommandTemplateData{
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HTTPIP: hostIP,
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HTTPPort: httpPort,
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Name: s.VMName,
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}
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d := bootcommand.NewVNCDriver(conn, s.Config.BootKeyInterval)
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ui.Say("Typing the boot command over VNC...")
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flatBootCommand := s.Config.FlatBootCommand()
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command, err := interpolate.Render(flatBootCommand, &s.Ctx)
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if err != nil {
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err := fmt.Errorf("Error preparing boot command: %s", err)
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state.Put("error", err)
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ui.Error(err.Error())
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return multistep.ActionHalt
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}
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seq, err := bootcommand.GenerateExpressionSequence(command)
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if err != nil {
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err := fmt.Errorf("Error generating boot command: %s", err)
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state.Put("error", err)
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ui.Error(err.Error())
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return multistep.ActionHalt
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}
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if err := seq.Do(ctx, d); err != nil {
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err := fmt.Errorf("Error running boot command: %s", err)
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state.Put("error", err)
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ui.Error(err.Error())
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return multistep.ActionHalt
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}
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if pauseFn != nil {
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pauseFn(multistep.DebugLocationAfterRun,
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fmt.Sprintf("boot_command: %s", command), state)
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}
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return multistep.ActionContinue
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}
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func (*StepVNCBootCommand) Cleanup(multistep.StateBag) {}
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