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step_deploy_template.go
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step_deploy_template.go
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package arm
import (
"fmt"
"net/url"
"strings"
"github.com/Azure/go-autorest/autorest"
"github.com/hashicorp/packer/builder/azure/common"
"github.com/hashicorp/packer/builder/azure/common/constants"
"github.com/hashicorp/packer/packer"
"github.com/mitchellh/multistep"
)
type StepDeployTemplate struct {
client *AzureClient
deploy func(resourceGroupName string, deploymentName string, cancelCh <-chan struct{}) error
delete func(resourceType string, resourceName string, resourceGroupName string) error
disk func(resourceGroupName string, computeName string) (string, string, error)
deleteDisk func(imageType string, imageName string, resourceGroupName string) error
say func(message string)
error func(e error)
config *Config
factory templateFactoryFunc
name string
}
func NewStepDeployTemplate(client *AzureClient, ui packer.Ui, config *Config, deploymentName string, factory templateFactoryFunc) *StepDeployTemplate {
var step = &StepDeployTemplate{
client: client,
say: func(message string) { ui.Say(message) },
error: func(e error) { ui.Error(e.Error()) },
config: config,
factory: factory,
name: deploymentName,
}
step.deploy = step.deployTemplate
step.delete = step.deleteOperationResource
step.disk = step.getImageDetails
step.deleteDisk = step.deleteImage
return step
}
func (s *StepDeployTemplate) deployTemplate(resourceGroupName string, deploymentName string, cancelCh <-chan struct{}) error {
deployment, err := s.factory(s.config)
if err != nil {
return err
}
_, errChan := s.client.DeploymentsClient.CreateOrUpdate(resourceGroupName, deploymentName, *deployment, cancelCh)
err = <-errChan
if err != nil {
s.say(s.client.LastError.Error())
}
return err
}
func (s *StepDeployTemplate) Run(state multistep.StateBag) multistep.StepAction {
s.say("Deploying deployment template ...")
var resourceGroupName = state.Get(constants.ArmResourceGroupName).(string)
s.say(fmt.Sprintf(" -> ResourceGroupName : '%s'", resourceGroupName))
s.say(fmt.Sprintf(" -> DeploymentName : '%s'", s.name))
result := common.StartInterruptibleTask(
func() bool { return common.IsStateCancelled(state) },
func(cancelCh <-chan struct{}) error {
return s.deploy(resourceGroupName, s.name, cancelCh)
},
)
return processInterruptibleResult(result, s.error, state)
}
func (s *StepDeployTemplate) getImageDetails(resourceGroupName string, computeName string) (string, string, error) {
//We can't depend on constants.ArmOSDiskVhd being set
var imageName string
var imageType string
vm, err := s.client.VirtualMachinesClient.Get(resourceGroupName, computeName, "")
if err != nil {
return imageName, imageType, err
} else {
if vm.StorageProfile.OsDisk.Vhd != nil {
imageType = "image"
imageName = *vm.StorageProfile.OsDisk.Vhd.URI
} else {
imageType = "Microsoft.Compute/disks"
imageName = *vm.StorageProfile.OsDisk.ManagedDisk.ID
}
}
return imageType, imageName, nil
}
func (s *StepDeployTemplate) deleteOperationResource(resourceType string, resourceName string, resourceGroupName string) error {
var networkDeleteFunction func(string, string, <-chan struct{}) (<-chan autorest.Response, <-chan error)
switch resourceType {
case "Microsoft.Compute/virtualMachines":
_, errChan := s.client.VirtualMachinesClient.Delete(resourceGroupName,
resourceName, nil)
err := <-errChan
if err != nil {
return err
}
case "Microsoft.KeyVault/vaults":
_, err := s.client.VaultClientDelete.Delete(resourceGroupName, resourceName)
return err
case "Microsoft.Network/networkInterfaces":
networkDeleteFunction = s.client.InterfacesClient.Delete
case "Microsoft.Network/virtualNetworks":
networkDeleteFunction = s.client.VirtualNetworksClient.Delete
case "Microsoft.Network/publicIPAddresses":
networkDeleteFunction = s.client.PublicIPAddressesClient.Delete
}
if networkDeleteFunction != nil {
_, errChan := networkDeleteFunction(resourceGroupName, resourceName, nil)
err := <-errChan
if err != nil {
return err
}
}
return nil
}
func (s *StepDeployTemplate) deleteImage(imageType string, imageName string, resourceGroupName string) error {
// Managed disk
if imageType == "Microsoft.Compute/disks" {
xs := strings.Split(imageName, "/")
diskName := xs[len(xs)-1]
_, errChan := s.client.DisksClient.Delete(resourceGroupName, diskName, nil)
err := <-errChan
return err
}
// VHD image
u, err := url.Parse(imageName)
if err != nil {
return err
}
xs := strings.Split(u.Path, "/")
var storageAccountName = xs[1]
var blobName = strings.Join(xs[2:], "/")
blob := s.client.BlobStorageClient.GetContainerReference(storageAccountName).GetBlobReference(blobName)
err = blob.Delete(nil)
return err
}
func (s *StepDeployTemplate) Cleanup(state multistep.StateBag) {
//Only clean up if this was an existing resource group and the resource group
//is marked as created
var existingResourceGroup = state.Get(constants.ArmIsExistingResourceGroup).(bool)
var resourceGroupCreated = state.Get(constants.ArmIsResourceGroupCreated).(bool)
if !existingResourceGroup || !resourceGroupCreated {
return
}
ui := state.Get("ui").(packer.Ui)
ui.Say("\nThe resource group was not created by Packer, deleting individual resources ...")
var resourceGroupName = state.Get(constants.ArmResourceGroupName).(string)
var computeName = state.Get(constants.ArmComputeName).(string)
var deploymentName = s.name
imageType, imageName, err := s.disk(resourceGroupName, computeName)
if err != nil {
ui.Error("Could not retrieve OS Image details")
}
ui.Say(" -> Deployment: " + deploymentName)
if deploymentName != "" {
maxResources := int32(50)
deploymentOperations, err := s.client.DeploymentOperationsClient.List(resourceGroupName, deploymentName, &maxResources)
if err != nil {
ui.Error(fmt.Sprintf("Error deleting resources. Please delete them manually.\n\n"+
"Name: %s\n"+
"Error: %s", resourceGroupName, err))
}
for _, deploymentOperation := range *deploymentOperations.Value {
// Sometimes an empty operation is added to the list by Azure
if deploymentOperation.Properties.TargetResource == nil {
continue
}
ui.Say(fmt.Sprintf(" -> %s : '%s'",
*deploymentOperation.Properties.TargetResource.ResourceType,
*deploymentOperation.Properties.TargetResource.ResourceName))
err = s.delete(*deploymentOperation.Properties.TargetResource.ResourceType,
*deploymentOperation.Properties.TargetResource.ResourceName,
resourceGroupName)
if err != nil {
ui.Error(fmt.Sprintf("Error deleting resource. Please delete manually.\n\n"+
"Name: %s\n"+
"Error: %s", *deploymentOperation.Properties.TargetResource.ResourceName, err))
}
}
// The disk is not defined as an operation in the template so has to be
// deleted separately
ui.Say(fmt.Sprintf(" -> %s : '%s'", imageType, imageName))
err = s.deleteDisk(imageType, imageName, resourceGroupName)
if err != nil {
ui.Error(fmt.Sprintf("Error deleting resource. Please delete manually.\n\n"+
"Name: %s\n"+
"Error: %s", imageName, err))
}
}
}