Vendor dependencies for azure backend

vendor/github.com/Azure/azure-sdk-for-go/arm/examples/check/check.go

@@ -0,0 +1,86 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+
+	"github.com/Azure/azure-sdk-for-go/arm/examples/helpers"
+	"github.com/Azure/azure-sdk-for-go/arm/storage"
+	"github.com/Azure/go-autorest/autorest"
+	"github.com/Azure/go-autorest/autorest/azure"
+	"github.com/Azure/go-autorest/autorest/to"
+)
+
+func withInspection() autorest.PrepareDecorator {
+	return func(p autorest.Preparer) autorest.Preparer {
+		return autorest.PreparerFunc(func(r *http.Request) (*http.Request, error) {
+			fmt.Printf("Inspecting Request: %s %s\n", r.Method, r.URL)
+			return p.Prepare(r)
+		})
+	}
+}
+
+func byInspecting() autorest.RespondDecorator {
+	return func(r autorest.Responder) autorest.Responder {
+		return autorest.ResponderFunc(func(resp *http.Response) error {
+			fmt.Printf("Inspecting Response: %s for %s %s\n", resp.Status, resp.Request.Method, resp.Request.URL)
+			return r.Respond(resp)
+		})
+	}
+}
+
+func main() {
+	name := "testname01"
+
+	c := map[string]string{
+		"AZURE_CLIENT_ID":       os.Getenv("AZURE_CLIENT_ID"),
+		"AZURE_CLIENT_SECRET":   os.Getenv("AZURE_CLIENT_SECRET"),
+		"AZURE_SUBSCRIPTION_ID": os.Getenv("AZURE_SUBSCRIPTION_ID"),
+		"AZURE_TENANT_ID":       os.Getenv("AZURE_TENANT_ID")}
+	if err := checkEnvVar(&c); err != nil {
+		log.Fatalf("Error: %v", err)
+		return
+	}
+	spt, err := helpers.NewServicePrincipalTokenFromCredentials(c, azure.PublicCloud.ResourceManagerEndpoint)
+	if err != nil {
+		log.Fatalf("Error: %v", err)
+		return
+	}
+	ac := storage.NewAccountsClient(c["AZURE_SUBSCRIPTION_ID"])
+	ac.Authorizer = autorest.NewBearerAuthorizer(spt)
+
+	ac.Sender = autorest.CreateSender(
+		autorest.WithLogging(log.New(os.Stdout, "sdk-example: ", log.LstdFlags)))
+
+	ac.RequestInspector = withInspection()
+	ac.ResponseInspector = byInspecting()
+	cna, err := ac.CheckNameAvailability(
+		storage.AccountCheckNameAvailabilityParameters{
+			Name: to.StringPtr(name),
+			Type: to.StringPtr("Microsoft.Storage/storageAccounts")})
+
+	if err != nil {
+		log.Fatalf("Error: %v", err)
+		return
+	}
+	if to.Bool(cna.NameAvailable) {
+		fmt.Printf("The storage account name '%s' is available\n", name)
+	} else {
+		fmt.Printf("The storage account name '%s' is unavailable because %s\n", name, to.String(cna.Message))
+	}
+}
+
+func checkEnvVar(envVars *map[string]string) error {
+	var missingVars []string
+	for varName, value := range *envVars {
+		if value == "" {
+			missingVars = append(missingVars, varName)
+		}
+	}
+	if len(missingVars) > 0 {
+		return fmt.Errorf("Missing environment variables %v", missingVars)
+	}
+	return nil
+}