Create a provider to use Azure Batch (#133)

* Started work on provider * WIP Adding batch provider * Working basic call into pool client. Need to parameterize the baseurl * Fixed job creation by manipulating the content-type * WIP Kicking off containers. Dirty * [wip] More meat around scheduling simple containers. * Working on basic task wrapper to co-schedule pods * WIP on task wrapper * WIP * Working pod minimal wrapper for batch * Integrate pod template code into provider * Cleaning up * Move to docker without gpu * WIP batch integration * partially working * Working logs * Tidy code * WIP: Testing and readme * Added readme and terraform deployment for GPU Azure Batch pool. * Update to enable low priority nodes for gpu * Fix log formatting bug. Return node logs when container not yet started * Moved to golang v1.10 * Fix cri test * Fix up minor docs Issue. Add provider to readme. Add var for vk image.
2018-06-23 00:33:49 +01:00
parent 1ad6fb434e
commit d6e8b3daf7
75 changed files with 20040 additions and 6 deletions
--- a/vendor/github.com/Azure/go-autorest/autorest/azure/async.go
+++ b/vendor/github.com/Azure/go-autorest/autorest/azure/async.go
@@ -0,0 +1,511 @@
+package azure
+
+// Copyright 2017 Microsoft Corporation
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/Azure/go-autorest/autorest"
+	"github.com/Azure/go-autorest/autorest/date"
+)
+
+const (
+	headerAsyncOperation = "Azure-AsyncOperation"
+)
+
+const (
+	operationInProgress string = "InProgress"
+	operationCanceled   string = "Canceled"
+	operationFailed     string = "Failed"
+	operationSucceeded  string = "Succeeded"
+)
+
+var pollingCodes = [...]int{http.StatusNoContent, http.StatusAccepted, http.StatusCreated, http.StatusOK}
+
+// Future provides a mechanism to access the status and results of an asynchronous request.
+// Since futures are stateful they should be passed by value to avoid race conditions.
+type Future struct {
+	req  *http.Request
+	resp *http.Response
+	ps   pollingState
+}
+
+// NewFuture returns a new Future object initialized with the specified request.
+func NewFuture(req *http.Request) Future {
+	return Future{req: req}
+}
+
+// Response returns the last HTTP response or nil if there isn't one.
+func (f Future) Response() *http.Response {
+	return f.resp
+}
+
+// Status returns the last status message of the operation.
+func (f Future) Status() string {
+	if f.ps.State == "" {
+		return "Unknown"
+	}
+	return f.ps.State
+}
+
+// PollingMethod returns the method used to monitor the status of the asynchronous operation.
+func (f Future) PollingMethod() PollingMethodType {
+	return f.ps.PollingMethod
+}
+
+// Done queries the service to see if the operation has completed.
+func (f *Future) Done(sender autorest.Sender) (bool, error) {
+	// exit early if this future has terminated
+	if f.ps.hasTerminated() {
+		return true, f.errorInfo()
+	}
+	resp, err := sender.Do(f.req)
+	f.resp = resp
+	if err != nil {
+		return false, err
+	}
+
+	if !autorest.ResponseHasStatusCode(resp, pollingCodes[:]...) {
+		// check response body for error content
+		if resp.Body != nil {
+			type respErr struct {
+				ServiceError ServiceError `json:"error"`
+			}
+			re := respErr{}
+
+			defer resp.Body.Close()
+			b, err := ioutil.ReadAll(resp.Body)
+			if err != nil {
+				return false, err
+			}
+			err = json.Unmarshal(b, &re)
+			if err != nil {
+				return false, err
+			}
+			return false, re.ServiceError
+		}
+
+		// try to return something meaningful
+		return false, ServiceError{
+			Code:    fmt.Sprintf("%v", resp.StatusCode),
+			Message: resp.Status,
+		}
+	}
+
+	err = updatePollingState(resp, &f.ps)
+	if err != nil {
+		return false, err
+	}
+
+	if f.ps.hasTerminated() {
+		return true, f.errorInfo()
+	}
+
+	f.req, err = newPollingRequest(f.ps)
+	return false, err
+}
+
+// GetPollingDelay returns a duration the application should wait before checking
+// the status of the asynchronous request and true; this value is returned from
+// the service via the Retry-After response header.  If the header wasn't returned
+// then the function returns the zero-value time.Duration and false.
+func (f Future) GetPollingDelay() (time.Duration, bool) {
+	if f.resp == nil {
+		return 0, false
+	}
+
+	retry := f.resp.Header.Get(autorest.HeaderRetryAfter)
+	if retry == "" {
+		return 0, false
+	}
+
+	d, err := time.ParseDuration(retry + "s")
+	if err != nil {
+		panic(err)
+	}
+
+	return d, true
+}
+
+// WaitForCompletion will return when one of the following conditions is met: the long
+// running operation has completed, the provided context is cancelled, or the client's
+// polling duration has been exceeded.  It will retry failed polling attempts based on
+// the retry value defined in the client up to the maximum retry attempts.
+func (f Future) WaitForCompletion(ctx context.Context, client autorest.Client) error {
+	ctx, cancel := context.WithTimeout(ctx, client.PollingDuration)
+	defer cancel()
+
+	done, err := f.Done(client)
+	for attempts := 0; !done; done, err = f.Done(client) {
+		if attempts >= client.RetryAttempts {
+			return autorest.NewErrorWithError(err, "azure", "WaitForCompletion", f.resp, "the number of retries has been exceeded")
+		}
+		// we want delayAttempt to be zero in the non-error case so
+		// that DelayForBackoff doesn't perform exponential back-off
+		var delayAttempt int
+		var delay time.Duration
+		if err == nil {
+			// check for Retry-After delay, if not present use the client's polling delay
+			var ok bool
+			delay, ok = f.GetPollingDelay()
+			if !ok {
+				delay = client.PollingDelay
+			}
+		} else {
+			// there was an error polling for status so perform exponential
+			// back-off based on the number of attempts using the client's retry
+			// duration.  update attempts after delayAttempt to avoid off-by-one.
+			delayAttempt = attempts
+			delay = client.RetryDuration
+			attempts++
+		}
+		// wait until the delay elapses or the context is cancelled
+		delayElapsed := autorest.DelayForBackoff(delay, delayAttempt, ctx.Done())
+		if !delayElapsed {
+			return autorest.NewErrorWithError(ctx.Err(), "azure", "WaitForCompletion", f.resp, "context has been cancelled")
+		}
+	}
+	return err
+}
+
+// if the operation failed the polling state will contain
+// error information and implements the error interface
+func (f *Future) errorInfo() error {
+	if !f.ps.hasSucceeded() {
+		return f.ps
+	}
+	return nil
+}
+
+// MarshalJSON implements the json.Marshaler interface.
+func (f Future) MarshalJSON() ([]byte, error) {
+	return json.Marshal(&f.ps)
+}
+
+// UnmarshalJSON implements the json.Unmarshaler interface.
+func (f *Future) UnmarshalJSON(data []byte) error {
+	err := json.Unmarshal(data, &f.ps)
+	if err != nil {
+		return err
+	}
+	f.req, err = newPollingRequest(f.ps)
+	return err
+}
+
+// PollingURL returns the URL used for retrieving the status of the long-running operation.
+// For LROs that use the Location header the final URL value is used to retrieve the result.
+func (f Future) PollingURL() string {
+	return f.ps.URI
+}
+
+// DoPollForAsynchronous returns a SendDecorator that polls if the http.Response is for an Azure
+// long-running operation. It will delay between requests for the duration specified in the
+// RetryAfter header or, if the header is absent, the passed delay. Polling may be canceled by
+// closing the optional channel on the http.Request.
+func DoPollForAsynchronous(delay time.Duration) autorest.SendDecorator {
+	return func(s autorest.Sender) autorest.Sender {
+		return autorest.SenderFunc(func(r *http.Request) (resp *http.Response, err error) {
+			resp, err = s.Do(r)
+			if err != nil {
+				return resp, err
+			}
+			if !autorest.ResponseHasStatusCode(resp, pollingCodes[:]...) {
+				return resp, nil
+			}
+
+			ps := pollingState{}
+			for err == nil {
+				err = updatePollingState(resp, &ps)
+				if err != nil {
+					break
+				}
+				if ps.hasTerminated() {
+					if !ps.hasSucceeded() {
+						err = ps
+					}
+					break
+				}
+
+				r, err = newPollingRequest(ps)
+				if err != nil {
+					return resp, err
+				}
+				r = r.WithContext(resp.Request.Context())
+
+				delay = autorest.GetRetryAfter(resp, delay)
+				resp, err = autorest.SendWithSender(s, r,
+					autorest.AfterDelay(delay))
+			}
+
+			return resp, err
+		})
+	}
+}
+
+func getAsyncOperation(resp *http.Response) string {
+	return resp.Header.Get(http.CanonicalHeaderKey(headerAsyncOperation))
+}
+
+func hasSucceeded(state string) bool {
+	return strings.EqualFold(state, operationSucceeded)
+}
+
+func hasTerminated(state string) bool {
+	return strings.EqualFold(state, operationCanceled) || strings.EqualFold(state, operationFailed) || strings.EqualFold(state, operationSucceeded)
+}
+
+func hasFailed(state string) bool {
+	return strings.EqualFold(state, operationFailed)
+}
+
+type provisioningTracker interface {
+	state() string
+	hasSucceeded() bool
+	hasTerminated() bool
+}
+
+type operationResource struct {
+	// Note:
+	// 	The specification states services should return the "id" field. However some return it as
+	// 	"operationId".
+	ID              string                 `json:"id"`
+	OperationID     string                 `json:"operationId"`
+	Name            string                 `json:"name"`
+	Status          string                 `json:"status"`
+	Properties      map[string]interface{} `json:"properties"`
+	OperationError  ServiceError           `json:"error"`
+	StartTime       date.Time              `json:"startTime"`
+	EndTime         date.Time              `json:"endTime"`
+	PercentComplete float64                `json:"percentComplete"`
+}
+
+func (or operationResource) state() string {
+	return or.Status
+}
+
+func (or operationResource) hasSucceeded() bool {
+	return hasSucceeded(or.state())
+}
+
+func (or operationResource) hasTerminated() bool {
+	return hasTerminated(or.state())
+}
+
+type provisioningProperties struct {
+	ProvisioningState string `json:"provisioningState"`
+}
+
+type provisioningStatus struct {
+	Properties        provisioningProperties `json:"properties,omitempty"`
+	ProvisioningError ServiceError           `json:"error,omitempty"`
+}
+
+func (ps provisioningStatus) state() string {
+	return ps.Properties.ProvisioningState
+}
+
+func (ps provisioningStatus) hasSucceeded() bool {
+	return hasSucceeded(ps.state())
+}
+
+func (ps provisioningStatus) hasTerminated() bool {
+	return hasTerminated(ps.state())
+}
+
+func (ps provisioningStatus) hasProvisioningError() bool {
+	// code and message are required fields so only check them
+	return len(ps.ProvisioningError.Code) > 0 ||
+		len(ps.ProvisioningError.Message) > 0
+}
+
+// PollingMethodType defines a type used for enumerating polling mechanisms.
+type PollingMethodType string
+
+const (
+	// PollingAsyncOperation indicates the polling method uses the Azure-AsyncOperation header.
+	PollingAsyncOperation PollingMethodType = "AsyncOperation"
+
+	// PollingLocation indicates the polling method uses the Location header.
+	PollingLocation PollingMethodType = "Location"
+
+	// PollingUnknown indicates an unknown polling method and is the default value.
+	PollingUnknown PollingMethodType = ""
+)
+
+type pollingState struct {
+	PollingMethod PollingMethodType `json:"pollingMethod"`
+	URI           string            `json:"uri"`
+	State         string            `json:"state"`
+	ServiceError  *ServiceError     `json:"error,omitempty"`
+}
+
+func (ps pollingState) hasSucceeded() bool {
+	return hasSucceeded(ps.State)
+}
+
+func (ps pollingState) hasTerminated() bool {
+	return hasTerminated(ps.State)
+}
+
+func (ps pollingState) hasFailed() bool {
+	return hasFailed(ps.State)
+}
+
+func (ps pollingState) Error() string {
+	s := fmt.Sprintf("Long running operation terminated with status '%s'", ps.State)
+	if ps.ServiceError != nil {
+		s = fmt.Sprintf("%s: %+v", s, *ps.ServiceError)
+	}
+	return s
+}
+
+//	updatePollingState maps the operation status -- retrieved from either a provisioningState
+// 	field, the status field of an OperationResource, or inferred from the HTTP status code --
+// 	into a well-known states. Since the process begins from the initial request, the state
+//	always comes from either a the provisioningState returned or is inferred from the HTTP
+//	status code. Subsequent requests will read an Azure OperationResource object if the
+//	service initially returned the Azure-AsyncOperation header. The responseFormat field notes
+//	the expected response format.
+func updatePollingState(resp *http.Response, ps *pollingState) error {
+	// Determine the response shape
+	// -- The first response will always be a provisioningStatus response; only the polling requests,
+	//    depending on the header returned, may be something otherwise.
+	var pt provisioningTracker
+	if ps.PollingMethod == PollingAsyncOperation {
+		pt = &operationResource{}
+	} else {
+		pt = &provisioningStatus{}
+	}
+
+	// If this is the first request (that is, the polling response shape is unknown), determine how
+	// to poll and what to expect
+	if ps.PollingMethod == PollingUnknown {
+		req := resp.Request
+		if req == nil {
+			return autorest.NewError("azure", "updatePollingState", "Azure Polling Error - Original HTTP request is missing")
+		}
+
+		// Prefer the Azure-AsyncOperation header
+		ps.URI = getAsyncOperation(resp)
+		if ps.URI != "" {
+			ps.PollingMethod = PollingAsyncOperation
+		} else {
+			ps.PollingMethod = PollingLocation
+		}
+
+		// Else, use the Location header
+		if ps.URI == "" {
+			ps.URI = autorest.GetLocation(resp)
+		}
+
+		// Lastly, requests against an existing resource, use the last request URI
+		if ps.URI == "" {
+			m := strings.ToUpper(req.Method)
+			if m == http.MethodPatch || m == http.MethodPut || m == http.MethodGet {
+				ps.URI = req.URL.String()
+			}
+		}
+	}
+
+	// Read and interpret the response (saving the Body in case no polling is necessary)
+	b := &bytes.Buffer{}
+	err := autorest.Respond(resp,
+		autorest.ByCopying(b),
+		autorest.ByUnmarshallingJSON(pt),
+		autorest.ByClosing())
+	resp.Body = ioutil.NopCloser(b)
+	if err != nil {
+		return err
+	}
+
+	// Interpret the results
+	// -- Terminal states apply regardless
+	// -- Unknown states are per-service inprogress states
+	// -- Otherwise, infer state from HTTP status code
+	if pt.hasTerminated() {
+		ps.State = pt.state()
+	} else if pt.state() != "" {
+		ps.State = operationInProgress
+	} else {
+		switch resp.StatusCode {
+		case http.StatusAccepted:
+			ps.State = operationInProgress
+
+		case http.StatusNoContent, http.StatusCreated, http.StatusOK:
+			ps.State = operationSucceeded
+
+		default:
+			ps.State = operationFailed
+		}
+	}
+
+	if strings.EqualFold(ps.State, operationInProgress) && ps.URI == "" {
+		return autorest.NewError("azure", "updatePollingState", "Azure Polling Error - Unable to obtain polling URI for %s %s", resp.Request.Method, resp.Request.URL)
+	}
+
+	// For failed operation, check for error code and message in
+	// -- Operation resource
+	// -- Response
+	// -- Otherwise, Unknown
+	if ps.hasFailed() {
+		if or, ok := pt.(*operationResource); ok {
+			ps.ServiceError = &or.OperationError
+		} else if p, ok := pt.(*provisioningStatus); ok && p.hasProvisioningError() {
+			ps.ServiceError = &p.ProvisioningError
+		} else {
+			ps.ServiceError = &ServiceError{
+				Code:    "Unknown",
+				Message: "None",
+			}
+		}
+	}
+	return nil
+}
+
+func newPollingRequest(ps pollingState) (*http.Request, error) {
+	reqPoll, err := autorest.Prepare(&http.Request{},
+		autorest.AsGet(),
+		autorest.WithBaseURL(ps.URI))
+	if err != nil {
+		return nil, autorest.NewErrorWithError(err, "azure", "newPollingRequest", nil, "Failure creating poll request to %s", ps.URI)
+	}
+
+	return reqPoll, nil
+}
+
+// AsyncOpIncompleteError is the type that's returned from a future that has not completed.
+type AsyncOpIncompleteError struct {
+	// FutureType is the name of the type composed of a azure.Future.
+	FutureType string
+}
+
+// Error returns an error message including the originating type name of the error.
+func (e AsyncOpIncompleteError) Error() string {
+	return fmt.Sprintf("%s: asynchronous operation has not completed", e.FutureType)
+}
+
+// NewAsyncOpIncompleteError creates a new AsyncOpIncompleteError with the specified parameters.
+func NewAsyncOpIncompleteError(futureType string) AsyncOpIncompleteError {
+	return AsyncOpIncompleteError{
+		FutureType: futureType,
+	}
+}
--- a/vendor/github.com/Azure/go-autorest/autorest/azure/azure.go
+++ b/vendor/github.com/Azure/go-autorest/autorest/azure/azure.go
@@ -0,0 +1,301 @@
+// Package azure provides Azure-specific implementations used with AutoRest.
+// See the included examples for more detail.
+package azure
+
+// Copyright 2017 Microsoft Corporation
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"github.com/Azure/go-autorest/autorest"
+)
+
+const (
+	// HeaderClientID is the Azure extension header to set a user-specified request ID.
+	HeaderClientID = "x-ms-client-request-id"
+
+	// HeaderReturnClientID is the Azure extension header to set if the user-specified request ID
+	// should be included in the response.
+	HeaderReturnClientID = "x-ms-return-client-request-id"
+
+	// HeaderRequestID is the Azure extension header of the service generated request ID returned
+	// in the response.
+	HeaderRequestID = "x-ms-request-id"
+)
+
+// ServiceError encapsulates the error response from an Azure service.
+// It adhears to the OData v4 specification for error responses.
+type ServiceError struct {
+	Code       string                   `json:"code"`
+	Message    string                   `json:"message"`
+	Target     *string                  `json:"target"`
+	Details    []map[string]interface{} `json:"details"`
+	InnerError map[string]interface{}   `json:"innererror"`
+}
+
+func (se ServiceError) Error() string {
+	result := fmt.Sprintf("Code=%q Message=%q", se.Code, se.Message)
+
+	if se.Target != nil {
+		result += fmt.Sprintf(" Target=%q", *se.Target)
+	}
+
+	if se.Details != nil {
+		d, err := json.Marshal(se.Details)
+		if err != nil {
+			result += fmt.Sprintf(" Details=%v", se.Details)
+		}
+		result += fmt.Sprintf(" Details=%v", string(d))
+	}
+
+	if se.InnerError != nil {
+		d, err := json.Marshal(se.InnerError)
+		if err != nil {
+			result += fmt.Sprintf(" InnerError=%v", se.InnerError)
+		}
+		result += fmt.Sprintf(" InnerError=%v", string(d))
+	}
+
+	return result
+}
+
+// UnmarshalJSON implements the json.Unmarshaler interface for the ServiceError type.
+func (se *ServiceError) UnmarshalJSON(b []byte) error {
+	// per the OData v4 spec the details field must be an array of JSON objects.
+	// unfortunately not all services adhear to the spec and just return a single
+	// object instead of an array with one object.  so we have to perform some
+	// shenanigans to accommodate both cases.
+	// http://docs.oasis-open.org/odata/odata-json-format/v4.0/os/odata-json-format-v4.0-os.html#_Toc372793091
+
+	type serviceError1 struct {
+		Code       string                   `json:"code"`
+		Message    string                   `json:"message"`
+		Target     *string                  `json:"target"`
+		Details    []map[string]interface{} `json:"details"`
+		InnerError map[string]interface{}   `json:"innererror"`
+	}
+
+	type serviceError2 struct {
+		Code       string                 `json:"code"`
+		Message    string                 `json:"message"`
+		Target     *string                `json:"target"`
+		Details    map[string]interface{} `json:"details"`
+		InnerError map[string]interface{} `json:"innererror"`
+	}
+
+	se1 := serviceError1{}
+	err := json.Unmarshal(b, &se1)
+	if err == nil {
+		se.populate(se1.Code, se1.Message, se1.Target, se1.Details, se1.InnerError)
+		return nil
+	}
+
+	se2 := serviceError2{}
+	err = json.Unmarshal(b, &se2)
+	if err == nil {
+		se.populate(se2.Code, se2.Message, se2.Target, nil, se2.InnerError)
+		se.Details = append(se.Details, se2.Details)
+		return nil
+	}
+	return err
+}
+
+func (se *ServiceError) populate(code, message string, target *string, details []map[string]interface{}, inner map[string]interface{}) {
+	se.Code = code
+	se.Message = message
+	se.Target = target
+	se.Details = details
+	se.InnerError = inner
+}
+
+// RequestError describes an error response returned by Azure service.
+type RequestError struct {
+	autorest.DetailedError
+
+	// The error returned by the Azure service.
+	ServiceError *ServiceError `json:"error"`
+
+	// The request id (from the x-ms-request-id-header) of the request.
+	RequestID string
+}
+
+// Error returns a human-friendly error message from service error.
+func (e RequestError) Error() string {
+	return fmt.Sprintf("autorest/azure: Service returned an error. Status=%v %v",
+		e.StatusCode, e.ServiceError)
+}
+
+// IsAzureError returns true if the passed error is an Azure Service error; false otherwise.
+func IsAzureError(e error) bool {
+	_, ok := e.(*RequestError)
+	return ok
+}
+
+// Resource contains details about an Azure resource.
+type Resource struct {
+	SubscriptionID string
+	ResourceGroup  string
+	Provider       string
+	ResourceType   string
+	ResourceName   string
+}
+
+// ParseResourceID parses a resource ID into a ResourceDetails struct.
+// See https://docs.microsoft.com/en-us/azure/azure-resource-manager/resource-group-template-functions-resource#return-value-4.
+func ParseResourceID(resourceID string) (Resource, error) {
+
+	const resourceIDPatternText = `(?i)subscriptions/(.+)/resourceGroups/(.+)/providers/(.+?)/(.+?)/(.+)`
+	resourceIDPattern := regexp.MustCompile(resourceIDPatternText)
+	match := resourceIDPattern.FindStringSubmatch(resourceID)
+
+	if len(match) == 0 {
+		return Resource{}, fmt.Errorf("parsing failed for %s. Invalid resource Id format", resourceID)
+	}
+
+	v := strings.Split(match[5], "/")
+	resourceName := v[len(v)-1]
+
+	result := Resource{
+		SubscriptionID: match[1],
+		ResourceGroup:  match[2],
+		Provider:       match[3],
+		ResourceType:   match[4],
+		ResourceName:   resourceName,
+	}
+
+	return result, nil
+}
+
+// NewErrorWithError creates a new Error conforming object from the
+// passed packageType, method, statusCode of the given resp (UndefinedStatusCode
+// if resp is nil), message, and original error. message is treated as a format
+// string to which the optional args apply.
+func NewErrorWithError(original error, packageType string, method string, resp *http.Response, message string, args ...interface{}) RequestError {
+	if v, ok := original.(*RequestError); ok {
+		return *v
+	}
+
+	statusCode := autorest.UndefinedStatusCode
+	if resp != nil {
+		statusCode = resp.StatusCode
+	}
+	return RequestError{
+		DetailedError: autorest.DetailedError{
+			Original:    original,
+			PackageType: packageType,
+			Method:      method,
+			StatusCode:  statusCode,
+			Message:     fmt.Sprintf(message, args...),
+		},
+	}
+}
+
+// WithReturningClientID returns a PrepareDecorator that adds an HTTP extension header of
+// x-ms-client-request-id whose value is the passed, undecorated UUID (e.g.,
+// "0F39878C-5F76-4DB8-A25D-61D2C193C3CA"). It also sets the x-ms-return-client-request-id
+// header to true such that UUID accompanies the http.Response.
+func WithReturningClientID(uuid string) autorest.PrepareDecorator {
+	preparer := autorest.CreatePreparer(
+		WithClientID(uuid),
+		WithReturnClientID(true))
+
+	return func(p autorest.Preparer) autorest.Preparer {
+		return autorest.PreparerFunc(func(r *http.Request) (*http.Request, error) {
+			r, err := p.Prepare(r)
+			if err != nil {
+				return r, err
+			}
+			return preparer.Prepare(r)
+		})
+	}
+}
+
+// WithClientID returns a PrepareDecorator that adds an HTTP extension header of
+// x-ms-client-request-id whose value is passed, undecorated UUID (e.g.,
+// "0F39878C-5F76-4DB8-A25D-61D2C193C3CA").
+func WithClientID(uuid string) autorest.PrepareDecorator {
+	return autorest.WithHeader(HeaderClientID, uuid)
+}
+
+// WithReturnClientID returns a PrepareDecorator that adds an HTTP extension header of
+// x-ms-return-client-request-id whose boolean value indicates if the value of the
+// x-ms-client-request-id header should be included in the http.Response.
+func WithReturnClientID(b bool) autorest.PrepareDecorator {
+	return autorest.WithHeader(HeaderReturnClientID, strconv.FormatBool(b))
+}
+
+// ExtractClientID extracts the client identifier from the x-ms-client-request-id header set on the
+// http.Request sent to the service (and returned in the http.Response)
+func ExtractClientID(resp *http.Response) string {
+	return autorest.ExtractHeaderValue(HeaderClientID, resp)
+}
+
+// ExtractRequestID extracts the Azure server generated request identifier from the
+// x-ms-request-id header.
+func ExtractRequestID(resp *http.Response) string {
+	return autorest.ExtractHeaderValue(HeaderRequestID, resp)
+}
+
+// WithErrorUnlessStatusCode returns a RespondDecorator that emits an
+// azure.RequestError by reading the response body unless the response HTTP status code
+// is among the set passed.
+//
+// If there is a chance service may return responses other than the Azure error
+// format and the response cannot be parsed into an error, a decoding error will
+// be returned containing the response body. In any case, the Responder will
+// return an error if the status code is not satisfied.
+//
+// If this Responder returns an error, the response body will be replaced with
+// an in-memory reader, which needs no further closing.
+func WithErrorUnlessStatusCode(codes ...int) autorest.RespondDecorator {
+	return func(r autorest.Responder) autorest.Responder {
+		return autorest.ResponderFunc(func(resp *http.Response) error {
+			err := r.Respond(resp)
+			if err == nil && !autorest.ResponseHasStatusCode(resp, codes...) {
+				var e RequestError
+				defer resp.Body.Close()
+
+				// Copy and replace the Body in case it does not contain an error object.
+				// This will leave the Body available to the caller.
+				b, decodeErr := autorest.CopyAndDecode(autorest.EncodedAsJSON, resp.Body, &e)
+				resp.Body = ioutil.NopCloser(&b)
+				if decodeErr != nil {
+					return fmt.Errorf("autorest/azure: error response cannot be parsed: %q error: %v", b.String(), decodeErr)
+				} else if e.ServiceError == nil {
+					// Check if error is unwrapped ServiceError
+					if err := json.Unmarshal(b.Bytes(), &e.ServiceError); err != nil || e.ServiceError.Message == "" {
+						e.ServiceError = &ServiceError{
+							Code:    "Unknown",
+							Message: "Unknown service error",
+						}
+					}
+				}
+
+				e.RequestID = ExtractRequestID(resp)
+				if e.StatusCode == nil {
+					e.StatusCode = resp.StatusCode
+				}
+				err = &e
+			}
+			return err
+		})
+	}
+}
--- a/vendor/github.com/Azure/go-autorest/autorest/azure/environments.go
+++ b/vendor/github.com/Azure/go-autorest/autorest/azure/environments.go
@@ -0,0 +1,191 @@
+package azure
+
+// Copyright 2017 Microsoft Corporation
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strings"
+)
+
+// EnvironmentFilepathName captures the name of the environment variable containing the path to the file
+// to be used while populating the Azure Environment.
+const EnvironmentFilepathName = "AZURE_ENVIRONMENT_FILEPATH"
+
+var environments = map[string]Environment{
+	"AZURECHINACLOUD":        ChinaCloud,
+	"AZUREGERMANCLOUD":       GermanCloud,
+	"AZUREPUBLICCLOUD":       PublicCloud,
+	"AZUREUSGOVERNMENTCLOUD": USGovernmentCloud,
+}
+
+// Environment represents a set of endpoints for each of Azure's Clouds.
+type Environment struct {
+	Name                         string `json:"name"`
+	ManagementPortalURL          string `json:"managementPortalURL"`
+	PublishSettingsURL           string `json:"publishSettingsURL"`
+	ServiceManagementEndpoint    string `json:"serviceManagementEndpoint"`
+	ResourceManagerEndpoint      string `json:"resourceManagerEndpoint"`
+	ActiveDirectoryEndpoint      string `json:"activeDirectoryEndpoint"`
+	GalleryEndpoint              string `json:"galleryEndpoint"`
+	KeyVaultEndpoint             string `json:"keyVaultEndpoint"`
+	GraphEndpoint                string `json:"graphEndpoint"`
+	ServiceBusEndpoint           string `json:"serviceBusEndpoint"`
+	BatchManagementEndpoint      string `json:"batchManagementEndpoint"`
+	StorageEndpointSuffix        string `json:"storageEndpointSuffix"`
+	SQLDatabaseDNSSuffix         string `json:"sqlDatabaseDNSSuffix"`
+	TrafficManagerDNSSuffix      string `json:"trafficManagerDNSSuffix"`
+	KeyVaultDNSSuffix            string `json:"keyVaultDNSSuffix"`
+	ServiceBusEndpointSuffix     string `json:"serviceBusEndpointSuffix"`
+	ServiceManagementVMDNSSuffix string `json:"serviceManagementVMDNSSuffix"`
+	ResourceManagerVMDNSSuffix   string `json:"resourceManagerVMDNSSuffix"`
+	ContainerRegistryDNSSuffix   string `json:"containerRegistryDNSSuffix"`
+	TokenAudience                string `json:"tokenAudience"`
+}
+
+var (
+	// PublicCloud is the default public Azure cloud environment
+	PublicCloud = Environment{
+		Name:                         "AzurePublicCloud",
+		ManagementPortalURL:          "https://manage.windowsazure.com/",
+		PublishSettingsURL:           "https://manage.windowsazure.com/publishsettings/index",
+		ServiceManagementEndpoint:    "https://management.core.windows.net/",
+		ResourceManagerEndpoint:      "https://management.azure.com/",
+		ActiveDirectoryEndpoint:      "https://login.microsoftonline.com/",
+		GalleryEndpoint:              "https://gallery.azure.com/",
+		KeyVaultEndpoint:             "https://vault.azure.net/",
+		GraphEndpoint:                "https://graph.windows.net/",
+		ServiceBusEndpoint:           "https://servicebus.windows.net/",
+		BatchManagementEndpoint:      "https://batch.core.windows.net/",
+		StorageEndpointSuffix:        "core.windows.net",
+		SQLDatabaseDNSSuffix:         "database.windows.net",
+		TrafficManagerDNSSuffix:      "trafficmanager.net",
+		KeyVaultDNSSuffix:            "vault.azure.net",
+		ServiceBusEndpointSuffix:     "servicebus.windows.net",
+		ServiceManagementVMDNSSuffix: "cloudapp.net",
+		ResourceManagerVMDNSSuffix:   "cloudapp.azure.com",
+		ContainerRegistryDNSSuffix:   "azurecr.io",
+		TokenAudience:                "https://management.azure.com/",
+	}
+
+	// USGovernmentCloud is the cloud environment for the US Government
+	USGovernmentCloud = Environment{
+		Name:                         "AzureUSGovernmentCloud",
+		ManagementPortalURL:          "https://manage.windowsazure.us/",
+		PublishSettingsURL:           "https://manage.windowsazure.us/publishsettings/index",
+		ServiceManagementEndpoint:    "https://management.core.usgovcloudapi.net/",
+		ResourceManagerEndpoint:      "https://management.usgovcloudapi.net/",
+		ActiveDirectoryEndpoint:      "https://login.microsoftonline.us/",
+		GalleryEndpoint:              "https://gallery.usgovcloudapi.net/",
+		KeyVaultEndpoint:             "https://vault.usgovcloudapi.net/",
+		GraphEndpoint:                "https://graph.windows.net/",
+		ServiceBusEndpoint:           "https://servicebus.usgovcloudapi.net/",
+		BatchManagementEndpoint:      "https://batch.core.usgovcloudapi.net/",
+		StorageEndpointSuffix:        "core.usgovcloudapi.net",
+		SQLDatabaseDNSSuffix:         "database.usgovcloudapi.net",
+		TrafficManagerDNSSuffix:      "usgovtrafficmanager.net",
+		KeyVaultDNSSuffix:            "vault.usgovcloudapi.net",
+		ServiceBusEndpointSuffix:     "servicebus.usgovcloudapi.net",
+		ServiceManagementVMDNSSuffix: "usgovcloudapp.net",
+		ResourceManagerVMDNSSuffix:   "cloudapp.windowsazure.us",
+		ContainerRegistryDNSSuffix:   "azurecr.io",
+		TokenAudience:                "https://management.usgovcloudapi.net/",
+	}
+
+	// ChinaCloud is the cloud environment operated in China
+	ChinaCloud = Environment{
+		Name:                         "AzureChinaCloud",
+		ManagementPortalURL:          "https://manage.chinacloudapi.com/",
+		PublishSettingsURL:           "https://manage.chinacloudapi.com/publishsettings/index",
+		ServiceManagementEndpoint:    "https://management.core.chinacloudapi.cn/",
+		ResourceManagerEndpoint:      "https://management.chinacloudapi.cn/",
+		ActiveDirectoryEndpoint:      "https://login.chinacloudapi.cn/",
+		GalleryEndpoint:              "https://gallery.chinacloudapi.cn/",
+		KeyVaultEndpoint:             "https://vault.azure.cn/",
+		GraphEndpoint:                "https://graph.chinacloudapi.cn/",
+		ServiceBusEndpoint:           "https://servicebus.chinacloudapi.cn/",
+		BatchManagementEndpoint:      "https://batch.chinacloudapi.cn/",
+		StorageEndpointSuffix:        "core.chinacloudapi.cn",
+		SQLDatabaseDNSSuffix:         "database.chinacloudapi.cn",
+		TrafficManagerDNSSuffix:      "trafficmanager.cn",
+		KeyVaultDNSSuffix:            "vault.azure.cn",
+		ServiceBusEndpointSuffix:     "servicebus.chinacloudapi.cn",
+		ServiceManagementVMDNSSuffix: "chinacloudapp.cn",
+		ResourceManagerVMDNSSuffix:   "cloudapp.azure.cn",
+		ContainerRegistryDNSSuffix:   "azurecr.io",
+		TokenAudience:                "https://management.chinacloudapi.cn/",
+	}
+
+	// GermanCloud is the cloud environment operated in Germany
+	GermanCloud = Environment{
+		Name:                         "AzureGermanCloud",
+		ManagementPortalURL:          "http://portal.microsoftazure.de/",
+		PublishSettingsURL:           "https://manage.microsoftazure.de/publishsettings/index",
+		ServiceManagementEndpoint:    "https://management.core.cloudapi.de/",
+		ResourceManagerEndpoint:      "https://management.microsoftazure.de/",
+		ActiveDirectoryEndpoint:      "https://login.microsoftonline.de/",
+		GalleryEndpoint:              "https://gallery.cloudapi.de/",
+		KeyVaultEndpoint:             "https://vault.microsoftazure.de/",
+		GraphEndpoint:                "https://graph.cloudapi.de/",
+		ServiceBusEndpoint:           "https://servicebus.cloudapi.de/",
+		BatchManagementEndpoint:      "https://batch.cloudapi.de/",
+		StorageEndpointSuffix:        "core.cloudapi.de",
+		SQLDatabaseDNSSuffix:         "database.cloudapi.de",
+		TrafficManagerDNSSuffix:      "azuretrafficmanager.de",
+		KeyVaultDNSSuffix:            "vault.microsoftazure.de",
+		ServiceBusEndpointSuffix:     "servicebus.cloudapi.de",
+		ServiceManagementVMDNSSuffix: "azurecloudapp.de",
+		ResourceManagerVMDNSSuffix:   "cloudapp.microsoftazure.de",
+		ContainerRegistryDNSSuffix:   "azurecr.io",
+		TokenAudience:                "https://management.microsoftazure.de/",
+	}
+)
+
+// EnvironmentFromName returns an Environment based on the common name specified.
+func EnvironmentFromName(name string) (Environment, error) {
+	// IMPORTANT
+	// As per @radhikagupta5:
+	// This is technical debt, fundamentally here because Kubernetes is not currently accepting
+	// contributions to the providers. Once that is an option, the provider should be updated to
+	// directly call `EnvironmentFromFile`. Until then, we rely on dispatching Azure Stack environment creation
+	// from this method based on the name that is provided to us.
+	if strings.EqualFold(name, "AZURESTACKCLOUD") {
+		return EnvironmentFromFile(os.Getenv(EnvironmentFilepathName))
+	}
+
+	name = strings.ToUpper(name)
+	env, ok := environments[name]
+	if !ok {
+		return env, fmt.Errorf("autorest/azure: There is no cloud environment matching the name %q", name)
+	}
+
+	return env, nil
+}
+
+// EnvironmentFromFile loads an Environment from a configuration file available on disk.
+// This function is particularly useful in the Hybrid Cloud model, where one must define their own
+// endpoints.
+func EnvironmentFromFile(location string) (unmarshaled Environment, err error) {
+	fileContents, err := ioutil.ReadFile(location)
+	if err != nil {
+		return
+	}
+
+	err = json.Unmarshal(fileContents, &unmarshaled)
+
+	return
+}
--- a/vendor/github.com/Azure/go-autorest/autorest/azure/metadata_environment.go
+++ b/vendor/github.com/Azure/go-autorest/autorest/azure/metadata_environment.go
@@ -0,0 +1,245 @@
+package azure
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"strings"
+
+	"github.com/Azure/go-autorest/autorest"
+)
+
+// Copyright 2017 Microsoft Corporation
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+
+type audience []string
+
+type authentication struct {
+	LoginEndpoint string   `json:"loginEndpoint"`
+	Audiences     audience `json:"audiences"`
+}
+
+type environmentMetadataInfo struct {
+	GalleryEndpoint string         `json:"galleryEndpoint"`
+	GraphEndpoint   string         `json:"graphEndpoint"`
+	PortalEndpoint  string         `json:"portalEndpoint"`
+	Authentication  authentication `json:"authentication"`
+}
+
+// EnvironmentProperty represent property names that clients can override
+type EnvironmentProperty string
+
+const (
+	// EnvironmentName ...
+	EnvironmentName EnvironmentProperty = "name"
+	// EnvironmentManagementPortalURL ..
+	EnvironmentManagementPortalURL EnvironmentProperty = "managementPortalURL"
+	// EnvironmentPublishSettingsURL ...
+	EnvironmentPublishSettingsURL EnvironmentProperty = "publishSettingsURL"
+	// EnvironmentServiceManagementEndpoint ...
+	EnvironmentServiceManagementEndpoint EnvironmentProperty = "serviceManagementEndpoint"
+	// EnvironmentResourceManagerEndpoint ...
+	EnvironmentResourceManagerEndpoint EnvironmentProperty = "resourceManagerEndpoint"
+	// EnvironmentActiveDirectoryEndpoint ...
+	EnvironmentActiveDirectoryEndpoint EnvironmentProperty = "activeDirectoryEndpoint"
+	// EnvironmentGalleryEndpoint ...
+	EnvironmentGalleryEndpoint EnvironmentProperty = "galleryEndpoint"
+	// EnvironmentKeyVaultEndpoint ...
+	EnvironmentKeyVaultEndpoint EnvironmentProperty = "keyVaultEndpoint"
+	// EnvironmentGraphEndpoint ...
+	EnvironmentGraphEndpoint EnvironmentProperty = "graphEndpoint"
+	// EnvironmentServiceBusEndpoint ...
+	EnvironmentServiceBusEndpoint EnvironmentProperty = "serviceBusEndpoint"
+	// EnvironmentBatchManagementEndpoint ...
+	EnvironmentBatchManagementEndpoint EnvironmentProperty = "batchManagementEndpoint"
+	// EnvironmentStorageEndpointSuffix ...
+	EnvironmentStorageEndpointSuffix EnvironmentProperty = "storageEndpointSuffix"
+	// EnvironmentSQLDatabaseDNSSuffix ...
+	EnvironmentSQLDatabaseDNSSuffix EnvironmentProperty = "sqlDatabaseDNSSuffix"
+	// EnvironmentTrafficManagerDNSSuffix ...
+	EnvironmentTrafficManagerDNSSuffix EnvironmentProperty = "trafficManagerDNSSuffix"
+	// EnvironmentKeyVaultDNSSuffix ...
+	EnvironmentKeyVaultDNSSuffix EnvironmentProperty = "keyVaultDNSSuffix"
+	// EnvironmentServiceBusEndpointSuffix ...
+	EnvironmentServiceBusEndpointSuffix EnvironmentProperty = "serviceBusEndpointSuffix"
+	// EnvironmentServiceManagementVMDNSSuffix ...
+	EnvironmentServiceManagementVMDNSSuffix EnvironmentProperty = "serviceManagementVMDNSSuffix"
+	// EnvironmentResourceManagerVMDNSSuffix ...
+	EnvironmentResourceManagerVMDNSSuffix EnvironmentProperty = "resourceManagerVMDNSSuffix"
+	// EnvironmentContainerRegistryDNSSuffix ...
+	EnvironmentContainerRegistryDNSSuffix EnvironmentProperty = "containerRegistryDNSSuffix"
+	// EnvironmentTokenAudience ...
+	EnvironmentTokenAudience EnvironmentProperty = "tokenAudience"
+)
+
+// OverrideProperty represents property name and value that clients can override
+type OverrideProperty struct {
+	Key   EnvironmentProperty
+	Value string
+}
+
+// EnvironmentFromURL loads an Environment from a URL
+// This function is particularly useful in the Hybrid Cloud model, where one may define their own
+// endpoints.
+func EnvironmentFromURL(resourceManagerEndpoint string, properties ...OverrideProperty) (environment Environment, err error) {
+	var metadataEnvProperties environmentMetadataInfo
+
+	if resourceManagerEndpoint == "" {
+		return environment, fmt.Errorf("Metadata resource manager endpoint is empty")
+	}
+
+	if metadataEnvProperties, err = retrieveMetadataEnvironment(resourceManagerEndpoint); err != nil {
+		return environment, err
+	}
+
+	// Give priority to user's override values
+	overrideProperties(&environment, properties)
+
+	if environment.Name == "" {
+		environment.Name = "HybridEnvironment"
+	}
+	stampDNSSuffix := environment.StorageEndpointSuffix
+	if stampDNSSuffix == "" {
+		stampDNSSuffix = strings.TrimSuffix(strings.TrimPrefix(strings.Replace(resourceManagerEndpoint, strings.Split(resourceManagerEndpoint, ".")[0], "", 1), "."), "/")
+		environment.StorageEndpointSuffix = stampDNSSuffix
+	}
+	if environment.KeyVaultDNSSuffix == "" {
+		environment.KeyVaultDNSSuffix = fmt.Sprintf("%s.%s", "vault", stampDNSSuffix)
+	}
+	if environment.KeyVaultEndpoint == "" {
+		environment.KeyVaultEndpoint = fmt.Sprintf("%s%s", "https://", environment.KeyVaultDNSSuffix)
+	}
+	if environment.TokenAudience == "" {
+		environment.TokenAudience = metadataEnvProperties.Authentication.Audiences[0]
+	}
+	if environment.ActiveDirectoryEndpoint == "" {
+		environment.ActiveDirectoryEndpoint = metadataEnvProperties.Authentication.LoginEndpoint
+	}
+	if environment.ResourceManagerEndpoint == "" {
+		environment.ResourceManagerEndpoint = resourceManagerEndpoint
+	}
+	if environment.GalleryEndpoint == "" {
+		environment.GalleryEndpoint = metadataEnvProperties.GalleryEndpoint
+	}
+	if environment.GraphEndpoint == "" {
+		environment.GraphEndpoint = metadataEnvProperties.GraphEndpoint
+	}
+
+	return environment, nil
+}
+
+func overrideProperties(environment *Environment, properties []OverrideProperty) {
+	for _, property := range properties {
+		switch property.Key {
+		case EnvironmentName:
+			{
+				environment.Name = property.Value
+			}
+		case EnvironmentManagementPortalURL:
+			{
+				environment.ManagementPortalURL = property.Value
+			}
+		case EnvironmentPublishSettingsURL:
+			{
+				environment.PublishSettingsURL = property.Value
+			}
+		case EnvironmentServiceManagementEndpoint:
+			{
+				environment.ServiceManagementEndpoint = property.Value
+			}
+		case EnvironmentResourceManagerEndpoint:
+			{
+				environment.ResourceManagerEndpoint = property.Value
+			}
+		case EnvironmentActiveDirectoryEndpoint:
+			{
+				environment.ActiveDirectoryEndpoint = property.Value
+			}
+		case EnvironmentGalleryEndpoint:
+			{
+				environment.GalleryEndpoint = property.Value
+			}
+		case EnvironmentKeyVaultEndpoint:
+			{
+				environment.KeyVaultEndpoint = property.Value
+			}
+		case EnvironmentGraphEndpoint:
+			{
+				environment.GraphEndpoint = property.Value
+			}
+		case EnvironmentServiceBusEndpoint:
+			{
+				environment.ServiceBusEndpoint = property.Value
+			}
+		case EnvironmentBatchManagementEndpoint:
+			{
+				environment.BatchManagementEndpoint = property.Value
+			}
+		case EnvironmentStorageEndpointSuffix:
+			{
+				environment.StorageEndpointSuffix = property.Value
+			}
+		case EnvironmentSQLDatabaseDNSSuffix:
+			{
+				environment.SQLDatabaseDNSSuffix = property.Value
+			}
+		case EnvironmentTrafficManagerDNSSuffix:
+			{
+				environment.TrafficManagerDNSSuffix = property.Value
+			}
+		case EnvironmentKeyVaultDNSSuffix:
+			{
+				environment.KeyVaultDNSSuffix = property.Value
+			}
+		case EnvironmentServiceBusEndpointSuffix:
+			{
+				environment.ServiceBusEndpointSuffix = property.Value
+			}
+		case EnvironmentServiceManagementVMDNSSuffix:
+			{
+				environment.ServiceManagementVMDNSSuffix = property.Value
+			}
+		case EnvironmentResourceManagerVMDNSSuffix:
+			{
+				environment.ResourceManagerVMDNSSuffix = property.Value
+			}
+		case EnvironmentContainerRegistryDNSSuffix:
+			{
+				environment.ContainerRegistryDNSSuffix = property.Value
+			}
+		case EnvironmentTokenAudience:
+			{
+				environment.TokenAudience = property.Value
+			}
+		}
+	}
+}
+
+func retrieveMetadataEnvironment(endpoint string) (environment environmentMetadataInfo, err error) {
+	client := autorest.NewClientWithUserAgent("")
+	managementEndpoint := fmt.Sprintf("%s%s", strings.TrimSuffix(endpoint, "/"), "/metadata/endpoints?api-version=1.0")
+	req, _ := http.NewRequest("GET", managementEndpoint, nil)
+	response, err := client.Do(req)
+	if err != nil {
+		return environment, err
+	}
+	defer response.Body.Close()
+	jsonResponse, err := ioutil.ReadAll(response.Body)
+	if err != nil {
+		return environment, err
+	}
+	err = json.Unmarshal(jsonResponse, &environment)
+	return environment, err
+}
--- a/vendor/github.com/Azure/go-autorest/autorest/azure/rp.go
+++ b/vendor/github.com/Azure/go-autorest/autorest/azure/rp.go
@@ -0,0 +1,200 @@
+// Copyright 2017 Microsoft Corporation
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+
+package azure
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+
+	"github.com/Azure/go-autorest/autorest"
+)
+
+// DoRetryWithRegistration tries to register the resource provider in case it is unregistered.
+// It also handles request retries
+func DoRetryWithRegistration(client autorest.Client) autorest.SendDecorator {
+	return func(s autorest.Sender) autorest.Sender {
+		return autorest.SenderFunc(func(r *http.Request) (resp *http.Response, err error) {
+			rr := autorest.NewRetriableRequest(r)
+			for currentAttempt := 0; currentAttempt < client.RetryAttempts; currentAttempt++ {
+				err = rr.Prepare()
+				if err != nil {
+					return resp, err
+				}
+
+				resp, err = autorest.SendWithSender(s, rr.Request(),
+					autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...),
+				)
+				if err != nil {
+					return resp, err
+				}
+
+				if resp.StatusCode != http.StatusConflict || client.SkipResourceProviderRegistration {
+					return resp, err
+				}
+				var re RequestError
+				err = autorest.Respond(
+					resp,
+					autorest.ByUnmarshallingJSON(&re),
+				)
+				if err != nil {
+					return resp, err
+				}
+				err = re
+
+				if re.ServiceError != nil && re.ServiceError.Code == "MissingSubscriptionRegistration" {
+					regErr := register(client, r, re)
+					if regErr != nil {
+						return resp, fmt.Errorf("failed auto registering Resource Provider: %s. Original error: %s", regErr, err)
+					}
+				}
+			}
+			return resp, fmt.Errorf("failed request: %s", err)
+		})
+	}
+}
+
+func getProvider(re RequestError) (string, error) {
+	if re.ServiceError != nil && len(re.ServiceError.Details) > 0 {
+		return re.ServiceError.Details[0]["target"].(string), nil
+	}
+	return "", errors.New("provider was not found in the response")
+}
+
+func register(client autorest.Client, originalReq *http.Request, re RequestError) error {
+	subID := getSubscription(originalReq.URL.Path)
+	if subID == "" {
+		return errors.New("missing parameter subscriptionID to register resource provider")
+	}
+	providerName, err := getProvider(re)
+	if err != nil {
+		return fmt.Errorf("missing parameter provider to register resource provider: %s", err)
+	}
+	newURL := url.URL{
+		Scheme: originalReq.URL.Scheme,
+		Host:   originalReq.URL.Host,
+	}
+
+	// taken from the resources SDK
+	// with almost identical code, this sections are easier to mantain
+	// It is also not a good idea to import the SDK here
+	// https://github.com/Azure/azure-sdk-for-go/blob/9f366792afa3e0ddaecdc860e793ba9d75e76c27/arm/resources/resources/providers.go#L252
+	pathParameters := map[string]interface{}{
+		"resourceProviderNamespace": autorest.Encode("path", providerName),
+		"subscriptionId":            autorest.Encode("path", subID),
+	}
+
+	const APIVersion = "2016-09-01"
+	queryParameters := map[string]interface{}{
+		"api-version": APIVersion,
+	}
+
+	preparer := autorest.CreatePreparer(
+		autorest.AsPost(),
+		autorest.WithBaseURL(newURL.String()),
+		autorest.WithPathParameters("/subscriptions/{subscriptionId}/providers/{resourceProviderNamespace}/register", pathParameters),
+		autorest.WithQueryParameters(queryParameters),
+	)
+
+	req, err := preparer.Prepare(&http.Request{})
+	if err != nil {
+		return err
+	}
+	req = req.WithContext(originalReq.Context())
+
+	resp, err := autorest.SendWithSender(client, req,
+		autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...),
+	)
+	if err != nil {
+		return err
+	}
+
+	type Provider struct {
+		RegistrationState *string `json:"registrationState,omitempty"`
+	}
+	var provider Provider
+
+	err = autorest.Respond(
+		resp,
+		WithErrorUnlessStatusCode(http.StatusOK),
+		autorest.ByUnmarshallingJSON(&provider),
+		autorest.ByClosing(),
+	)
+	if err != nil {
+		return err
+	}
+
+	// poll for registered provisioning state
+	now := time.Now()
+	for err == nil && time.Since(now) < client.PollingDuration {
+		// taken from the resources SDK
+		// https://github.com/Azure/azure-sdk-for-go/blob/9f366792afa3e0ddaecdc860e793ba9d75e76c27/arm/resources/resources/providers.go#L45
+		preparer := autorest.CreatePreparer(
+			autorest.AsGet(),
+			autorest.WithBaseURL(newURL.String()),
+			autorest.WithPathParameters("/subscriptions/{subscriptionId}/providers/{resourceProviderNamespace}", pathParameters),
+			autorest.WithQueryParameters(queryParameters),
+		)
+		req, err = preparer.Prepare(&http.Request{})
+		if err != nil {
+			return err
+		}
+		req = req.WithContext(originalReq.Context())
+
+		resp, err := autorest.SendWithSender(client, req,
+			autorest.DoRetryForStatusCodes(client.RetryAttempts, client.RetryDuration, autorest.StatusCodesForRetry...),
+		)
+		if err != nil {
+			return err
+		}
+
+		err = autorest.Respond(
+			resp,
+			WithErrorUnlessStatusCode(http.StatusOK),
+			autorest.ByUnmarshallingJSON(&provider),
+			autorest.ByClosing(),
+		)
+		if err != nil {
+			return err
+		}
+
+		if provider.RegistrationState != nil &&
+			*provider.RegistrationState == "Registered" {
+			break
+		}
+
+		delayed := autorest.DelayWithRetryAfter(resp, originalReq.Context().Done())
+		if !delayed && !autorest.DelayForBackoff(client.PollingDelay, 0, originalReq.Context().Done()) {
+			return originalReq.Context().Err()
+		}
+	}
+	if !(time.Since(now) < client.PollingDuration) {
+		return errors.New("polling for resource provider registration has exceeded the polling duration")
+	}
+	return err
+}
+
+func getSubscription(path string) string {
+	parts := strings.Split(path, "/")
+	for i, v := range parts {
+		if v == "subscriptions" && (i+1) < len(parts) {
+			return parts[i+1]
+		}
+	}
+	return ""
+}