packer-cn/builder/azure/arm/azure_client.go
Christopher Boumenot 871ca8c3d9 azure: Support for a user define VNET.
Two new configuration options have been exposed to allow users to specify
an existing virtual network: virtual_network_name and
virtual_network_resource_group_name.

 * virtual_network_name: name of the virtual network to attach a Packer VM
 to.

 * virtual_network_resource_group_name: name of the resource group that
 contains the virtual network.  This value is optional.  If the value is
 not specified, the builder queries Azure for the appropriate value.  If
 the builder cannot disambiguate the value, a value must be provided for
 this setting.

 * virtual_network_subnet_name: name of the subnet attached to the virtual
 network.  This value is optional.  If the value is not specified, the
 builder queries Azure for the appropriate value.  If the builder cannot
 disambiguate the value, a value must be provided for this setting.
2016-07-28 21:31:59 -07:00

212 lines
8.0 KiB
Go

// 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 (
"encoding/json"
"fmt"
"math"
"net/http"
"net/url"
"os"
"strconv"
"github.com/Azure/azure-sdk-for-go/arm/compute"
"github.com/Azure/azure-sdk-for-go/arm/network"
"github.com/Azure/azure-sdk-for-go/arm/resources/resources"
armStorage "github.com/Azure/azure-sdk-for-go/arm/storage"
"github.com/Azure/azure-sdk-for-go/storage"
"github.com/Azure/go-autorest/autorest"
"github.com/Azure/go-autorest/autorest/azure"
"github.com/mitchellh/packer/builder/azure/common"
"github.com/mitchellh/packer/version"
)
const (
EnvPackerLogAzureMaxLen = "PACKER_LOG_AZURE_MAXLEN"
)
var (
packerUserAgent = fmt.Sprintf(";packer/%s", version.FormattedVersion())
)
type AzureClient struct {
storage.BlobStorageClient
resources.DeploymentsClient
resources.GroupsClient
network.PublicIPAddressesClient
network.InterfacesClient
network.SubnetsClient
network.VirtualNetworksClient
compute.VirtualMachinesClient
common.VaultClient
armStorage.AccountsClient
InspectorMaxLength int
Template *CaptureTemplate
}
func getCaptureResponse(body string) *CaptureTemplate {
var operation CaptureOperation
err := json.Unmarshal([]byte(body), &operation)
if err != nil {
return nil
}
if operation.Properties != nil && operation.Properties.Output != nil {
return operation.Properties.Output
}
return nil
}
// HACK(chrboum): This method is a hack. It was written to work around this issue
// (https://github.com/Azure/azure-sdk-for-go/issues/307) and to an extent this
// issue (https://github.com/Azure/azure-rest-api-specs/issues/188).
//
// Capturing a VM is a long running operation that requires polling. There are
// couple different forms of polling, and the end result of a poll operation is
// discarded by the SDK. It is expected that any discarded data can be re-fetched,
// so discarding it has minimal impact. Unfortunately, there is no way to re-fetch
// the template returned by a capture call that I am aware of.
//
// If the second issue were fixed the VM ID would be included when GET'ing a VM. The
// VM ID could be used to locate the captured VHD, and captured template.
// Unfortunately, the VM ID is not included so this method cannot be used either.
//
// This code captures the template and saves it to the client (the AzureClient type).
// It expects that the capture API is called only once, or rather you only care that the
// last call's value is important because subsequent requests are not persisted. There
// is no care given to multiple threads writing this value because for our use case
// it does not matter.
func templateCapture(client *AzureClient) autorest.RespondDecorator {
return func(r autorest.Responder) autorest.Responder {
return autorest.ResponderFunc(func(resp *http.Response) error {
body, bodyString := handleBody(resp.Body, math.MaxInt64)
resp.Body = body
captureTemplate := getCaptureResponse(bodyString)
if captureTemplate != nil {
client.Template = captureTemplate
}
return r.Respond(resp)
})
}
}
// WAITING(chrboum): I have logged https://github.com/Azure/azure-sdk-for-go/issues/311 to get this
// method included in the SDK. It has been accepted, and I'll cut over to the official way
// once it ships.
func byConcatDecorators(decorators ...autorest.RespondDecorator) autorest.RespondDecorator {
return func(r autorest.Responder) autorest.Responder {
return autorest.DecorateResponder(r, decorators...)
}
}
func NewAzureClient(subscriptionID, resourceGroupName, storageAccountName string,
cloud *azure.Environment,
servicePrincipalToken, servicePrincipalTokenVault *azure.ServicePrincipalToken) (*AzureClient, error) {
var azureClient = &AzureClient{}
maxlen := getInspectorMaxLength()
azureClient.DeploymentsClient = resources.NewDeploymentsClientWithBaseURI(cloud.ResourceManagerEndpoint, subscriptionID)
azureClient.DeploymentsClient.Authorizer = servicePrincipalToken
azureClient.DeploymentsClient.RequestInspector = withInspection(maxlen)
azureClient.DeploymentsClient.ResponseInspector = byInspecting(maxlen)
azureClient.DeploymentsClient.UserAgent += packerUserAgent
azureClient.GroupsClient = resources.NewGroupsClientWithBaseURI(cloud.ResourceManagerEndpoint, subscriptionID)
azureClient.GroupsClient.Authorizer = servicePrincipalToken
azureClient.GroupsClient.RequestInspector = withInspection(maxlen)
azureClient.GroupsClient.ResponseInspector = byInspecting(maxlen)
azureClient.GroupsClient.UserAgent += packerUserAgent
azureClient.InterfacesClient = network.NewInterfacesClientWithBaseURI(cloud.ResourceManagerEndpoint, subscriptionID)
azureClient.InterfacesClient.Authorizer = servicePrincipalToken
azureClient.InterfacesClient.RequestInspector = withInspection(maxlen)
azureClient.InterfacesClient.ResponseInspector = byInspecting(maxlen)
azureClient.InterfacesClient.UserAgent += packerUserAgent
azureClient.SubnetsClient = network.NewSubnetsClientWithBaseURI(cloud.ResourceManagerEndpoint, subscriptionID)
azureClient.SubnetsClient.Authorizer = servicePrincipalToken
azureClient.SubnetsClient.RequestInspector = withInspection(maxlen)
azureClient.SubnetsClient.ResponseInspector = byInspecting(maxlen)
azureClient.SubnetsClient.UserAgent += packerUserAgent
azureClient.VirtualNetworksClient = network.NewVirtualNetworksClientWithBaseURI(cloud.ResourceManagerEndpoint, subscriptionID)
azureClient.VirtualNetworksClient.Authorizer = servicePrincipalToken
azureClient.VirtualNetworksClient.RequestInspector = withInspection(maxlen)
azureClient.VirtualNetworksClient.ResponseInspector = byInspecting(maxlen)
azureClient.VirtualNetworksClient.UserAgent += packerUserAgent
azureClient.PublicIPAddressesClient = network.NewPublicIPAddressesClientWithBaseURI(cloud.ResourceManagerEndpoint, subscriptionID)
azureClient.PublicIPAddressesClient.Authorizer = servicePrincipalToken
azureClient.PublicIPAddressesClient.RequestInspector = withInspection(maxlen)
azureClient.PublicIPAddressesClient.ResponseInspector = byInspecting(maxlen)
azureClient.PublicIPAddressesClient.UserAgent += packerUserAgent
azureClient.VirtualMachinesClient = compute.NewVirtualMachinesClientWithBaseURI(cloud.ResourceManagerEndpoint, subscriptionID)
azureClient.VirtualMachinesClient.Authorizer = servicePrincipalToken
azureClient.VirtualMachinesClient.RequestInspector = withInspection(maxlen)
azureClient.VirtualMachinesClient.ResponseInspector = byConcatDecorators(byInspecting(maxlen), templateCapture(azureClient))
azureClient.VirtualMachinesClient.UserAgent += packerUserAgent
azureClient.AccountsClient = armStorage.NewAccountsClientWithBaseURI(cloud.ResourceManagerEndpoint, subscriptionID)
azureClient.AccountsClient.Authorizer = servicePrincipalToken
azureClient.AccountsClient.RequestInspector = withInspection(maxlen)
azureClient.AccountsClient.ResponseInspector = byInspecting(maxlen)
azureClient.AccountsClient.UserAgent += packerUserAgent
keyVaultURL, err := url.Parse(cloud.KeyVaultEndpoint)
if err != nil {
return nil, err
}
azureClient.VaultClient = common.NewVaultClient(*keyVaultURL)
azureClient.VaultClient.Authorizer = servicePrincipalTokenVault
azureClient.VaultClient.RequestInspector = withInspection(maxlen)
azureClient.VaultClient.ResponseInspector = byInspecting(maxlen)
azureClient.VaultClient.UserAgent += packerUserAgent
accountKeys, err := azureClient.AccountsClient.ListKeys(resourceGroupName, storageAccountName)
if err != nil {
return nil, err
}
storageClient, err := storage.NewClient(
storageAccountName,
*(*accountKeys.Keys)[0].Value,
cloud.StorageEndpointSuffix,
storage.DefaultAPIVersion,
true /*useHttps*/)
if err != nil {
return nil, err
}
azureClient.BlobStorageClient = storageClient.GetBlobService()
return azureClient, nil
}
func getInspectorMaxLength() int64 {
value, ok := os.LookupEnv(EnvPackerLogAzureMaxLen)
if !ok {
return math.MaxInt64
}
i, err := strconv.ParseInt(value, 10, 64)
if err != nil {
return 0
}
if i < 0 {
return 0
}
return i
}