Add support for setting labels on GCE instance

builder/googlecompute/config.go

@@ -36,6 +36,7 @@ type Config struct {
 	ImageDescription     string            `mapstructure:"image_description"`
 	ImageFamily          string            `mapstructure:"image_family"`
 	InstanceName         string            `mapstructure:"instance_name"`
+	Labels               map[string]string `mapstructure:"labels"`
 	MachineType          string            `mapstructure:"machine_type"`
 	Metadata             map[string]string `mapstructure:"metadata"`
 	Network              string            `mapstructure:"network"`

builder/googlecompute/driver.go

@@ -65,6 +65,7 @@ type InstanceConfig struct {
 	DiskSizeGb        int64
 	DiskType          string
 	Image             *Image
+	Labels            map[string]string
 	MachineType       string
 	Metadata          map[string]string
 	Name              string

builder/googlecompute/driver_gce.go

@@ -407,6 +407,7 @@ func (d *driverGCE) RunInstance(c *InstanceConfig) (<-chan error, error) {
 			},
 		},
 		GuestAccelerators: guestAccelerators,
+		Labels:            c.Labels,
 		MachineType:       machineType.SelfLink,
 		Metadata: &compute.Metadata{
 			Items: metadata,

builder/googlecompute/step_create_instance.go

@@ -106,6 +106,7 @@ func (s *StepCreateInstance) Run(state multistep.StateBag) multistep.StepAction
 		DiskSizeGb:        c.DiskSizeGb,
 		DiskType:          c.DiskType,
 		Image:             sourceImage,
+		Labels:            c.Labels,
 		MachineType:       c.MachineType,
 		Metadata:          metadata,
 		Name:              name,