"""

Retrieve the newest image that is part of a given family in a project.

Args:

project: project ID or project number of the Cloud project you want to get image from.

family: name of the image family you want to get image from.

Returns:

An Image object.

"""

image_client = compute_v1.ImagesClient()

# List of public operating system (OS) images: https://cloud.google.com/compute/docs/images/os-details

newest_image = image_client.get_from_family(project=project, family=family)

disk_type: str,

disk_size_gb: int,

boot: bool,

source_image: str,

auto_delete: bool = True,

) -> compute_v1.AttachedDisk:

"""

Create an AttachedDisk object to be used in VM instance creation. Uses an image as the

source for the new disk.

Args:

disk_type: the type of disk you want to create. This value uses the following format:

"zones/{zone}/diskTypes/(pd-standard|pd-ssd|pd-balanced|pd-extreme)".

For example: "zones/us-west3-b/diskTypes/pd-ssd"

disk_size_gb: size of the new disk in gigabytes

boot: boolean flag indicating whether this disk should be used as a boot disk of an instance

source_image: source image to use when creating this disk. You must have read access to this disk. This can be one

of the publicly available images or an image from one of your projects.

This value uses the following format: "projects/{project_name}/global/images/{image_name}"

auto_delete: boolean flag indicating whether this disk should be deleted with the VM that uses it

Returns:

AttachedDisk object configured to be created using the specified image.

"""

boot_disk = compute_v1.AttachedDisk()

initialize_params = compute_v1.AttachedDiskInitializeParams()

initialize_params.source_image = source_image

initialize_params.disk_size_gb = disk_size_gb

initialize_params.disk_type = disk_type

boot_disk.initialize_params = initialize_params

# Remember to set auto_delete to True if you want the disk to be deleted when you delete

# your VM instance.

boot_disk.auto_delete = auto_delete

boot_disk.boot = boot

operation: ExtendedOperation, verbose_name: str = "operation", timeout: int = 300

) -> Any:

"""

Waits for the extended (long-running) operation to complete.

If the operation is successful, it will return its result.

If the operation ends with an error, an exception will be raised.

If there were any warnings during the execution of the operation

they will be printed to sys.stderr.

Args:

operation: a long-running operation you want to wait on.

verbose_name: (optional) a more verbose name of the operation,

used only during error and warning reporting.

timeout: how long (in seconds) to wait for operation to finish.

If None, wait indefinitely.

Returns:

Whatever the operation.result() returns.

Raises:

This method will raise the exception received from `operation.exception()`

or RuntimeError if there is no exception set, but there is an `error_code`

set for the `operation`.

In case of an operation taking longer than `timeout` seconds to complete,

a `concurrent.futures.TimeoutError` will be raised.

"""

result = operation.result(timeout=timeout)

if operation.error_code:

print(

f"Error during {verbose_name}: [Code: {operation.error_code}]: {operation.error_message}",

file=sys.stderr,

flush=True,

)

print(f"Operation ID: {operation.name}", file=sys.stderr, flush=True)

raise operation.exception() or RuntimeError(operation.error_message)

if operation.warnings:

print(f"Warnings during {verbose_name}:\n", file=sys.stderr, flush=True)

for warning in operation.warnings:

print(f" - {warning.code}: {warning.message}", file=sys.stderr, flush=True)

project_id: str,

zone: str,

instance_name: str,

disks: list[compute_v1.AttachedDisk],

machine_type: str = "n1-standard-1",

network_link: str = "global/networks/default",

subnetwork_link: str = None,

internal_ip: str = None,

external_access: bool = False,

external_ipv4: str = None,

accelerators: list[compute_v1.AcceleratorConfig] = None,

preemptible: bool = False,

spot: bool = False,

instance_termination_action: str = "STOP",

custom_hostname: str = None,

delete_protection: bool = False,

) -> compute_v1.Instance:

"""

Send an instance creation request to the Compute Engine API and wait for it to complete.

Args:

project_id: project ID or project number of the Cloud project you want to use.

zone: name of the zone to create the instance in. For example: "us-west3-b"

instance_name: name of the new virtual machine (VM) instance.

disks: a list of compute_v1.AttachedDisk objects describing the disks

you want to attach to your new instance.

machine_type: machine type of the VM being created. This value uses the

following format: "zones/{zone}/machineTypes/{type_name}".

For example: "zones/europe-west3-c/machineTypes/f1-micro"

network_link: name of the network you want the new instance to use.

For example: "global/networks/default" represents the network

named "default", which is created automatically for each project.

subnetwork_link: name of the subnetwork you want the new instance to use.

This value uses the following format:

"regions/{region}/subnetworks/{subnetwork_name}"

internal_ip: internal IP address you want to assign to the new instance.

By default, a free address from the pool of available internal IP addresses of

used subnet will be used.

external_access: boolean flag indicating if the instance should have an external IPv4

address assigned.

external_ipv4: external IPv4 address to be assigned to this instance. If you specify

an external IP address, it must live in the same region as the zone of the instance.

This setting requires `external_access` to be set to True to work.

accelerators: a list of AcceleratorConfig objects describing the accelerators that will

be attached to the new instance.

preemptible: boolean value indicating if the new instance should be preemptible

or not. Preemptible VMs have been deprecated and you should now use Spot VMs.

spot: boolean value indicating if the new instance should be a Spot VM or not.

instance_termination_action: What action should be taken once a Spot VM is terminated.

Possible values: "STOP", "DELETE"

custom_hostname: Custom hostname of the new VM instance.

Custom hostnames must conform to RFC 1035 requirements for valid hostnames.

delete_protection: boolean value indicating if the new virtual machine should be

protected against deletion or not.

Returns:

Instance object.

"""

instance_client = compute_v1.InstancesClient()

# Use the network interface provided in the network_link argument.

network_interface = compute_v1.NetworkInterface()

network_interface.network = network_link

if subnetwork_link:

network_interface.subnetwork = subnetwork_link

if internal_ip:

network_interface.network_i_p = internal_ip

if external_access:

access = compute_v1.AccessConfig()

access.type_ = compute_v1.AccessConfig.Type.ONE_TO_ONE_NAT.name

access.name = "External NAT"

access.network_tier = access.NetworkTier.PREMIUM.name

if external_ipv4:

access.nat_i_p = external_ipv4

network_interface.access_configs = [access]

# Collect information into the Instance object.

instance = compute_v1.Instance()

instance.network_interfaces = [network_interface]

instance.name = instance_name

instance.disks = disks

if re.match(r"^zones/[a-z\d\-]+/machineTypes/[a-z\d\-]+$", machine_type):

instance.machine_type = machine_type

else:

instance.machine_type = f"zones/{zone}/machineTypes/{machine_type}"

instance.scheduling = compute_v1.Scheduling()

if accelerators:

instance.guest_accelerators = accelerators

instance.scheduling.on_host_maintenance = (

compute_v1.Scheduling.OnHostMaintenance.TERMINATE.name

)

if preemptible:

# Set the preemptible setting

warnings.warn(

"Preemptible VMs are being replaced by Spot VMs.", DeprecationWarning

)

instance.scheduling = compute_v1.Scheduling()

instance.scheduling.preemptible = True

if spot:

# Set the Spot VM setting

instance.scheduling.provisioning_model = (

compute_v1.Scheduling.ProvisioningModel.SPOT.name

)

instance.scheduling.instance_termination_action = instance_termination_action

if custom_hostname is not None:

# Set the custom hostname for the instance

instance.hostname = custom_hostname

if delete_protection:

# Set the delete protection bit

instance.deletion_protection = True

# Prepare the request to insert an instance.

request = compute_v1.InsertInstanceRequest()

request.zone = zone

request.project = project_id

request.instance_resource = instance

# Wait for the create operation to complete.

print(f"Creating the {instance_name} instance in {zone}...")

operation = instance_client.insert(request=request)

wait_for_extended_operation(operation, "instance creation")

print(f"Instance {instance_name} created.")