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builder.go
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builder.go
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See the LICENSE file in builder/azure for license information.
package arm
import (
"errors"
"fmt"
"log"
"github.com/mitchellh/packer/builder/azure/common/constants"
"github.com/mitchellh/packer/builder/azure/common/lin"
"github.com/Azure/go-autorest/autorest/azure"
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/common"
"github.com/mitchellh/packer/helper/communicator"
"github.com/mitchellh/packer/packer"
)
type Builder struct {
config *Config
stateBag multistep.StateBag
runner multistep.Runner
}
const (
DefaultPublicIPAddressName = "packerPublicIP"
)
func (b *Builder) Prepare(raws ...interface{}) ([]string, error) {
c, warnings, errs := newConfig(raws...)
if errs != nil {
return warnings, errs
}
b.config = c
b.stateBag = new(multistep.BasicStateBag)
err := b.configureStateBag(b.stateBag)
if err != nil {
return nil, err
}
return warnings, errs
}
func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packer.Artifact, error) {
ui.Say("Preparing builder ...")
b.stateBag.Put("hook", hook)
b.stateBag.Put(constants.Ui, ui)
servicePrincipalToken, err := b.createServicePrincipalToken()
if err != nil {
return nil, err
}
ui.Message("Creating Azure Resource Manager (ARM) client ...")
azureClient, err := NewAzureClient(b.config.SubscriptionID, b.config.ResourceGroupName, b.config.StorageAccount, servicePrincipalToken)
if err != nil {
return nil, err
}
steps := []multistep.Step{
NewStepCreateResourceGroup(azureClient, ui),
NewStepValidateTemplate(azureClient, ui),
NewStepDeployTemplate(azureClient, ui),
NewStepGetIPAddress(azureClient, ui),
&communicator.StepConnectSSH{
Config: &b.config.Comm,
Host: lin.SSHHost,
SSHConfig: lin.SSHConfig(b.config.UserName),
},
&common.StepProvision{},
NewStepGetOSDisk(azureClient, ui),
NewStepPowerOffCompute(azureClient, ui),
NewStepCaptureImage(azureClient, ui),
NewStepDeleteResourceGroup(azureClient, ui),
NewStepDeleteOSDisk(azureClient, ui),
}
if b.config.PackerDebug {
ui.Message(fmt.Sprintf("temp admin user: '%s'", b.config.UserName))
ui.Message(fmt.Sprintf("temp admin password: '%s'", b.config.Password))
}
b.runner = b.createRunner(&steps, ui)
b.runner.Run(b.stateBag)
// Report any errors.
if rawErr, ok := b.stateBag.GetOk(constants.Error); ok {
return nil, rawErr.(error)
}
// If we were interrupted or cancelled, then just exit.
if _, ok := b.stateBag.GetOk(multistep.StateCancelled); ok {
return nil, errors.New("Build was cancelled.")
}
if _, ok := b.stateBag.GetOk(multistep.StateHalted); ok {
return nil, errors.New("Build was halted.")
}
return &artifact{}, nil
}
func (b *Builder) Cancel() {
if b.runner != nil {
log.Println("Cancelling the step runner...")
b.runner.Cancel()
}
}
func (b *Builder) createRunner(steps *[]multistep.Step, ui packer.Ui) multistep.Runner {
if b.config.PackerDebug {
return &multistep.DebugRunner{
Steps: *steps,
PauseFn: common.MultistepDebugFn(ui),
}
}
return &multistep.BasicRunner{
Steps: *steps,
}
}
func (b *Builder) configureStateBag(stateBag multistep.StateBag) error {
stateBag.Put(constants.AuthorizedKey, b.config.sshAuthorizedKey)
stateBag.Put(constants.PrivateKey, b.config.sshPrivateKey)
stateBag.Put(constants.ArmComputeName, b.config.tmpComputeName)
stateBag.Put(constants.ArmDeploymentName, b.config.tmpDeploymentName)
stateBag.Put(constants.ArmLocation, b.config.Location)
stateBag.Put(constants.ArmResourceGroupName, b.config.tmpResourceGroupName)
stateBag.Put(constants.ArmTemplateParameters, b.config.toTemplateParameters())
stateBag.Put(constants.ArmVirtualMachineCaptureParameters, b.config.toVirtualMachineCaptureParameters())
stateBag.Put(constants.ArmPublicIPAddressName, DefaultPublicIPAddressName)
return nil
}
func (b *Builder) createServicePrincipalToken() (*azure.ServicePrincipalToken, error) {
oauthConfig, err := azure.PublicCloud.OAuthConfigForTenant(b.config.TenantID)
if err != nil {
return nil, err
}
spt, err := azure.NewServicePrincipalToken(
*oauthConfig,
b.config.ClientID,
b.config.ClientSecret,
azure.PublicCloud.ResourceManagerEndpoint)
return spt, err
}