packer-cn/builder/googlecompute/builder.go

108 lines
2.9 KiB
Go

// The googlecompute package contains a packer.Builder implementation that
// builds images for Google Compute Engine.
package googlecompute
import (
"context"
"fmt"
"log"
"github.com/hashicorp/hcl/v2/hcldec"
"github.com/hashicorp/packer/common"
"github.com/hashicorp/packer/helper/communicator"
"github.com/hashicorp/packer/helper/multistep"
"github.com/hashicorp/packer/packer"
)
// The unique ID for this builder.
const BuilderId = "packer.googlecompute"
// Builder represents a Packer Builder.
type Builder struct {
config Config
runner multistep.Runner
}
func (b *Builder) ConfigSpec() hcldec.ObjectSpec { return b.config.FlatMapstructure().HCL2Spec() }
func (b *Builder) Prepare(raws ...interface{}) ([]string, []string, error) {
warnings, errs := b.config.Prepare(raws...)
if errs != nil {
return nil, warnings, errs
}
return nil, warnings, nil
}
// Run executes a googlecompute Packer build and returns a packer.Artifact
// representing a GCE machine image.
func (b *Builder) Run(ctx context.Context, ui packer.Ui, hook packer.Hook) (packer.Artifact, error) {
driver, err := NewDriverGCE(
ui, b.config.ProjectId, b.config.account, b.config.VaultGCPOauthEngine)
if err != nil {
return nil, err
}
// Set up the state.
state := new(multistep.BasicStateBag)
state.Put("config", &b.config)
state.Put("driver", driver)
state.Put("hook", hook)
state.Put("ui", ui)
// Build the steps.
steps := []multistep.Step{
new(StepCheckExistingImage),
&StepCreateSSHKey{
Debug: b.config.PackerDebug,
DebugKeyPath: fmt.Sprintf("gce_%s.pem", b.config.PackerBuildName),
},
&StepCreateInstance{
Debug: b.config.PackerDebug,
},
&StepCreateWindowsPassword{
Debug: b.config.PackerDebug,
DebugKeyPath: fmt.Sprintf("gce_windows_%s.pem", b.config.PackerBuildName),
},
&StepInstanceInfo{
Debug: b.config.PackerDebug,
},
&communicator.StepConnect{
Config: &b.config.Comm,
Host: communicator.CommHost(b.config.Comm.SSHHost, "instance_ip"),
SSHConfig: b.config.Comm.SSHConfigFunc(),
WinRMConfig: winrmConfig,
},
new(common.StepProvision),
&common.StepCleanupTempKeys{
Comm: &b.config.Comm,
},
}
if _, exists := b.config.Metadata[StartupScriptKey]; exists || b.config.StartupScriptFile != "" {
steps = append(steps, new(StepWaitStartupScript))
}
steps = append(steps, new(StepTeardownInstance), new(StepCreateImage))
// Run the steps.
b.runner = common.NewRunner(steps, b.config.PackerConfig, ui)
b.runner.Run(ctx, state)
// Report any errors.
if rawErr, ok := state.GetOk("error"); ok {
return nil, rawErr.(error)
}
if _, ok := state.GetOk("image"); !ok {
log.Println("Failed to find image in state. Bug?")
return nil, nil
}
artifact := &Artifact{
image: state.Get("image").(*Image),
driver: driver,
config: &b.config,
StateData: map[string]interface{}{"generated_data": state.Get("generated_data")},
}
return artifact, nil
}
// Cancel.