vendor: add github.com/Azure/azure-sdk-for-go and dependencies

vendor/github.com/Azure/azure-sdk-for-go/management/vmutils/rolestate.go

@@ -0,0 +1,58 @@
+package vmutils
+
+import (
+	"time"
+
+	"github.com/Azure/azure-sdk-for-go/management"
+	vm "github.com/Azure/azure-sdk-for-go/management/virtualmachine"
+)
+
+// WaitForDeploymentPowerState blocks until all role instances in deployment
+// reach desired power state.
+func WaitForDeploymentPowerState(client management.Client, cloudServiceName, deploymentName string, desiredPowerstate vm.PowerState) error {
+	for {
+		deployment, err := vm.NewClient(client).GetDeployment(cloudServiceName, deploymentName)
+		if err != nil {
+			return err
+		}
+		if allInstancesInPowerState(deployment.RoleInstanceList, desiredPowerstate) {
+			return nil
+		}
+		time.Sleep(2 * time.Second)
+	}
+}
+
+func allInstancesInPowerState(instances []vm.RoleInstance, desiredPowerstate vm.PowerState) bool {
+	for _, r := range instances {
+		if r.PowerState != desiredPowerstate {
+			return false
+		}
+	}
+
+	return true
+}
+
+// WaitForDeploymentInstanceStatus blocks until all role instances in deployment
+// reach desired InstanceStatus.
+func WaitForDeploymentInstanceStatus(client management.Client, cloudServiceName, deploymentName string, desiredInstanceStatus vm.InstanceStatus) error {
+	for {
+		deployment, err := vm.NewClient(client).GetDeployment(cloudServiceName, deploymentName)
+		if err != nil {
+			return err
+		}
+		if allInstancesInInstanceStatus(deployment.RoleInstanceList, desiredInstanceStatus) {
+			return nil
+		}
+		time.Sleep(2 * time.Second)
+	}
+}
+
+func allInstancesInInstanceStatus(instances []vm.RoleInstance, desiredInstancestatus vm.InstanceStatus) bool {
+	for _, r := range instances {
+		if r.InstanceStatus != desiredInstancestatus {
+			return false
+		}
+	}
+
+	return true
+}