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step_delete_resource_group.go
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step_delete_resource_group.go
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package arm
import (
"context"
"fmt"
"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/helper/multistep"
"github.com/hashicorp/packer/packer"
)
const (
maxResourcesToDelete = 50
)
type StepDeleteResourceGroup struct {
client *AzureClient
delete func(state multistep.StateBag, resourceGroupName string, cancelCh <-chan struct{}) error
say func(message string)
error func(e error)
}
func NewStepDeleteResourceGroup(client *AzureClient, ui packer.Ui) *StepDeleteResourceGroup {
var step = &StepDeleteResourceGroup{
client: client,
say: func(message string) { ui.Say(message) },
error: func(e error) { ui.Error(e.Error()) },
}
step.delete = step.deleteResourceGroup
return step
}
func (s *StepDeleteResourceGroup) deleteResourceGroup(state multistep.StateBag, resourceGroupName string, cancelCh <-chan struct{}) error {
var err error
if state.Get(constants.ArmIsExistingResourceGroup).(bool) {
s.say("\nThe resource group was not created by Packer, only deleting individual resources ...")
var deploymentName = state.Get(constants.ArmDeploymentName).(string)
err = s.deleteDeploymentResources(deploymentName, resourceGroupName)
if err != nil {
return err
}
if keyVaultDeploymentName, ok := state.GetOk(constants.ArmKeyVaultDeploymentName); ok {
err = s.deleteDeploymentResources(keyVaultDeploymentName.(string), resourceGroupName)
if err != nil {
return err
}
}
return nil
} else {
s.say("\nThe resource group was created by Packer, deleting ...")
_, errChan := s.client.GroupsClient.Delete(resourceGroupName, cancelCh)
err = <-errChan
if err != nil {
s.say(s.client.LastError.Error())
}
return err
}
}
func (s *StepDeleteResourceGroup) deleteDeploymentResources(deploymentName, resourceGroupName string) error {
maxResources := int32(maxResourcesToDelete)
deploymentOperations, err := s.client.DeploymentOperationsClient.List(resourceGroupName, deploymentName, &maxResources)
if err != nil {
s.reportIfError(err, resourceGroupName)
return err
}
for _, deploymentOperation := range *deploymentOperations.Value {
// Sometimes an empty operation is added to the list by Azure
if deploymentOperation.Properties.TargetResource == nil {
continue
}
s.say(fmt.Sprintf(" -> %s : '%s'",
*deploymentOperation.Properties.TargetResource.ResourceType,
*deploymentOperation.Properties.TargetResource.ResourceName))
var networkDeleteFunction func(string, string, <-chan struct{}) (<-chan autorest.Response, <-chan error)
resourceName := *deploymentOperation.Properties.TargetResource.ResourceName
switch *deploymentOperation.Properties.TargetResource.ResourceType {
case "Microsoft.Compute/virtualMachines":
_, errChan := s.client.VirtualMachinesClient.Delete(resourceGroupName, resourceName, nil)
err := <-errChan
s.reportIfError(err, resourceName)
case "Microsoft.KeyVault/vaults":
_, err := s.client.VaultClientDelete.Delete(resourceGroupName, resourceName)
s.reportIfError(err, resourceName)
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
s.reportIfError(err, resourceName)
}
}
return nil
}
func (s *StepDeleteResourceGroup) reportIfError(err error, resourceName string) {
if err != nil {
s.say(fmt.Sprintf("Error deleting resource. Please delete manually.\n\n"+
"Name: %s\n"+
"Error: %s", resourceName, err.Error()))
s.error(err)
}
}
func (s *StepDeleteResourceGroup) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
s.say("Deleting resource group ...")
var resourceGroupName = state.Get(constants.ArmResourceGroupName).(string)
s.say(fmt.Sprintf(" -> ResourceGroupName : '%s'", resourceGroupName))
result := common.StartInterruptibleTask(
func() bool { return common.IsStateCancelled(state) },
func(cancelCh <-chan struct{}) error { return s.delete(state, resourceGroupName, cancelCh) })
stepAction := processInterruptibleResult(result, s.error, state)
state.Put(constants.ArmIsResourceGroupCreated, false)
return stepAction
}
func (*StepDeleteResourceGroup) Cleanup(multistep.StateBag) {
}