import("context""fmt""io"compute"cloud.google.com/go/compute/apiv1""google.golang.org/api/iterator""cloud.google.com/go/compute/apiv1/computepb")// listRegionalExternal retrieves list external IP addresses in Google Cloud Platform region.funclistRegionalExternal(wio.Writer,projectID,regionstring)([]*computepb.Address,error){// projectID := "your_project_id"// region := "europe-west3"ctx:=context.Background()// Create the service client.addressesClient,err:=compute.NewAddressesRESTClient(ctx)iferr!=nil{returnnil,err}deferaddressesClient.Close()// Build the request.req:=&computepb.ListAddressesRequest{Project:projectID,Region:region,}// List the addresses.it:=addressesClient.List(ctx,req)// Iterate over the results.varaddresses[]*computepb.Addressfor{address,err:=it.Next()iferr==iterator.Done{break}iferr!=nil{returnnil,err}addresses=append(addresses,address)}// Print the addresses.fmt.Fprint(w,"Fetched addresses: \n")for_,address:=rangeaddresses{fmt.Fprintf(w,"%s\n",*address.Name)}returnaddresses,nil}// listGlobalExternal retrieves list external global IP addresses in Google Cloud Platform.funclistGlobalExternal(wio.Writer,projectIDstring)([]*computepb.Address,error){// projectID := "your_project_id"ctx:=context.Background()// Create the service client.addressesClient,err:=compute.NewGlobalAddressesRESTClient(ctx)iferr!=nil{returnnil,err}deferaddressesClient.Close()// Build the request.req:=&computepb.ListGlobalAddressesRequest{Project:projectID,}// List the addresses.it:=addressesClient.List(ctx,req)// Iterate over the results.varaddresses[]*computepb.Addressfor{address,err:=it.Next()iferr==iterator.Done{break}iferr!=nil{returnnil,err}addresses=append(addresses,address)}// Print the addresses.fmt.Fprint(w,"Fetched addresses: \n")for_,address:=rangeaddresses{fmt.Fprintf(w,"%s\n",*address.Name)}returnaddresses,nil}

importcom.google.cloud.compute.v1.Address;importcom.google.cloud.compute.v1.AddressesClient;importcom.google.cloud.compute.v1.GlobalAddressesClient;importcom.google.cloud.compute.v1.ListAddressesRequest;importcom.google.cloud.compute.v1.ListGlobalAddressesRequest;importcom.google.common.collect.Lists;importjava.io.IOException;importjava.util.List;importjava.util.concurrent.ExecutionException;importjava.util.concurrent.TimeoutException;publicclassListStaticExternalIp{publicstaticvoidmain(String[]args)throwsIOException,ExecutionException,InterruptedException,TimeoutException{// TODO(developer): Replace these variables before running the sample.// Project ID or project number of the Google Cloud project you want to use.StringprojectId="your-project-id";// Region where the VM and IP is located.Stringregion="your-region-id";listStaticExternalIp(projectId,region);}// Lists all static external IP addresses, either regional or global.publicstaticList<Address>listStaticExternalIp(StringprojectId,Stringregion)throwsIOException{// Use regional client if a region is specifiedif(region!=null){// Initialize client that will be used to send requests. This client only needs to be created// once, and can be reused for multiple requests.try(AddressesClientclient=AddressesClient.create()){ListAddressesRequestrequest=ListAddressesRequest.newBuilder().setProject(projectId).setRegion(region).build();returnLists.newArrayList(client.list(request).iterateAll());}}else{// Initialize client that will be used to send requests. This client only needs to be created// once, and can be reused for multiple requests.try(GlobalAddressesClientclient=GlobalAddressesClient.create()){ListGlobalAddressesRequestrequest=ListGlobalAddressesRequest.newBuilder().setProject(projectId).build();returnLists.newArrayList(client.list(request).iterateAll());}}}}

fromtypingimportList,Optionalfromgoogle.cloud.compute_v1.services.addresses.clientimportAddressesClientfromgoogle.cloud.compute_v1.services.global_addressesimportGlobalAddressesClientfromgoogle.cloud.compute_v1.typesimportAddressdeflist_static_ip_addresses(project_id:str,region:Optional[str]=None)->List[Address]:"""    Lists all static external IP addresses, either regional or global.    Args:    project_id (str): project ID.    region (Optional[str]): The region of the IP addresses if regional. None if global.    Returns:    List[Address]: A list of Address objects containing details about the requested IPs.    """ifregion:# Use regional client if a region is specifiedclient=AddressesClient()addresses_iterator=client.list(project=project_id,region=region)else:# Use global client if no region is specifiedclient=GlobalAddressesClient()addresses_iterator=client.list(project=project_id)returnlist(addresses_iterator)# Convert the iterator to a list to return

resource "google_compute_instance" "default" {  name         = "dns-proxy-nfs"  machine_type = "n1-standard-1"  zone         = "us-central1-a"  boot_disk {    initialize_params {      image = "ubuntu-1404-trusty-v20160627"    }  }  network_interface {    network = "default"    access_config {      nat_ip = google_compute_address.default.address    }  }}

// assignStaticExternalToNewVM creates a new VM instance and assigns a static external IP address to it.// NOTE: ip address is expected to exist and be located in the same region as new VMfuncassignStaticExternalToNewVM(wio.Writer,projectID,zone,instanceName,ipAddressstring)error{// projectID := "your_project_id"// zone := "europe-central2-b"// instanceName := "your_instance_name"// ipAddress := 301.222.11.123ctx:=context.Background()instancesClient,err:=compute.NewInstancesRESTClient(ctx)iferr!=nil{returnfmt.Errorf("NewInstancesRESTClient: %w",err)}deferinstancesClient.Close()imagesClient,err:=compute.NewImagesRESTClient(ctx)iferr!=nil{returnfmt.Errorf("NewImagesRESTClient: %w",err)}deferimagesClient.Close()// List of public operating system (OS) images: https://cloud.google.com/compute/docs/images/os-details.newestDebianReq:=&computepb.GetFromFamilyImageRequest{Project:"debian-cloud",Family:"debian-12",}newestDebian,err:=imagesClient.GetFromFamily(ctx,newestDebianReq)iferr!=nil{returnfmt.Errorf("unable to get image from family: %w",err)}req:=&computepb.InsertInstanceRequest{Project:projectID,Zone:zone,InstanceResource:&computepb.Instance{Name:proto.String(instanceName),Disks:[]*computepb.AttachedDisk{{InitializeParams:&computepb.AttachedDiskInitializeParams{DiskSizeGb:proto.Int64(10),SourceImage:newestDebian.SelfLink,DiskType:proto.String(fmt.Sprintf("zones/%s/diskTypes/pd-standard",zone)),},AutoDelete:proto.Bool(true),Boot:proto.Bool(true),Type:proto.String(computepb.AttachedDisk_PERSISTENT.String()),},},MachineType:proto.String(fmt.Sprintf("zones/%s/machineTypes/n1-standard-1",zone)),NetworkInterfaces:[]*computepb.NetworkInterface{{AccessConfigs:[]*computepb.AccessConfig{{Type:proto.String(computepb.AccessConfig_ONE_TO_ONE_NAT.String()),Name:proto.String("External NAT"),NetworkTier:proto.String(computepb.AccessConfig_PREMIUM.String()),NatIP:proto.String(ipAddress),},},},},},}op,err:=instancesClient.Insert(ctx,req)iferr!=nil{returnfmt.Errorf("unable to create instance: %w",err)}iferr=op.Wait(ctx);err!=nil{returnfmt.Errorf("unable to wait for the operation: %w",err)}fmt.Fprintf(w,"Static address %s assigned to new VM",ipAddress)returnnil}

importcom.google.cloud.compute.v1.AccessConfig;importcom.google.cloud.compute.v1.AccessConfig.Type;importcom.google.cloud.compute.v1.Address.NetworkTier;importcom.google.cloud.compute.v1.AttachedDisk;importcom.google.cloud.compute.v1.AttachedDiskInitializeParams;importcom.google.cloud.compute.v1.GetInstanceRequest;importcom.google.cloud.compute.v1.ImagesClient;importcom.google.cloud.compute.v1.InsertInstanceRequest;importcom.google.cloud.compute.v1.Instance;importcom.google.cloud.compute.v1.InstancesClient;importcom.google.cloud.compute.v1.NetworkInterface;importjava.io.IOException;importjava.util.UUID;importjava.util.concurrent.ExecutionException;importjava.util.concurrent.TimeUnit;importjava.util.concurrent.TimeoutException;publicclassAssignStaticExternalNewVmAddress{publicstaticvoidmain(String[]args)throwsIOException,ExecutionException,InterruptedException,TimeoutException{// TODO(developer): Replace these variables before running the sample.// Project ID or project number of the Google Cloud project you want to use.StringprojectId="your-project-id";// Instance ID of the Google Cloud project you want to use.StringinstanceId="your-instance-id";// Name of the zone to create the instance in. For example: "us-west3-b"Stringzone="your-zone-id";// 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"StringmachineType=String.format("zones/%s/machineTypes/{your-machineType-id}",zone);// boolean flag indicating if the instance should have an external IPv4 address assigned.booleanexternalAccess=true;// 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.StringexternalIpv4="your-externalIpv4-id";assignStaticExternalNewVmAddress(projectId,instanceId,zone,externalAccess,machineType,externalIpv4);}// Create a new VM instance with assigned static external IP address.publicstaticInstanceassignStaticExternalNewVmAddress(StringprojectId,StringinstanceName,Stringzone,booleanexternalAccess,StringmachineType,StringexternalIpv4)throwsIOException,ExecutionException,InterruptedException,TimeoutException{StringsourceImage;// Initialize client that will be used to send requests. This client only needs to be created// once, and can be reused for multiple requests.try(ImagesClientimagesClient=ImagesClient.create()){sourceImage=imagesClient.getFromFamily("debian-cloud","debian-11").getSelfLink();}AttachedDiskattachedDisk=buildAttachedDisk(sourceImage,zone);returncreateInstance(projectId,instanceName,zone,attachedDisk,machineType,externalAccess,externalIpv4);}privatestaticAttachedDiskbuildAttachedDisk(StringsourceImage,Stringzone){AttachedDiskInitializeParamsinitializeParams=AttachedDiskInitializeParams.newBuilder().setSourceImage(sourceImage).setDiskSizeGb(10).setDiskType(String.format("zones/%s/diskTypes/pd-standard",zone)).build();returnAttachedDisk.newBuilder().setInitializeParams(initializeParams)// Remember to set auto_delete to True if you want the disk to be deleted// when you delete your VM instance..setAutoDelete(true).setBoot(true).build();}// Send an instance creation request to the Compute Engine API and wait for it to complete.privatestaticInstancecreateInstance(StringprojectId,StringinstanceName,Stringzone,AttachedDiskdisks,StringmachineType,booleanexternalAccess,StringexternalIpv4)throwsIOException,ExecutionException,InterruptedException,TimeoutException{// Initialize client that will be used to send requests. This client only needs to be created// once, and can be reused for multiple requests.try(InstancesClientclient=InstancesClient.create()){InstanceinstanceResource=buildInstanceResource(instanceName,disks,machineType,externalAccess,externalIpv4);InsertInstanceRequestbuild=InsertInstanceRequest.newBuilder().setProject(projectId).setRequestId(UUID.randomUUID().toString()).setZone(zone).setInstanceResource(instanceResource).build();client.insertCallable().futureCall(build).get(60,TimeUnit.SECONDS);GetInstanceRequestgetInstanceRequest=GetInstanceRequest.newBuilder().setInstance(instanceName).setProject(projectId).setZone(zone).build();returnclient.get(getInstanceRequest);}}privatestaticInstancebuildInstanceResource(StringinstanceName,AttachedDiskdisk,StringmachineType,booleanexternalAccess,StringexternalIpv4){NetworkInterfacenetworkInterface=networkInterface(externalAccess,externalIpv4);returnInstance.newBuilder().setName(instanceName).addDisks(disk).setMachineType(machineType).addNetworkInterfaces(networkInterface).build();}privatestaticNetworkInterfacenetworkInterface(booleanexternalAccess,StringexternalIpv4){NetworkInterface.Builderbuild=NetworkInterface.newBuilder().setNetwork("global/networks/default");if(externalAccess){AccessConfig.BuilderaccessConfig=AccessConfig.newBuilder().setType(Type.ONE_TO_ONE_NAT.name()).setName("External NAT").setNetworkTier(NetworkTier.PREMIUM.name());if(externalIpv4!=null){accessConfig.setNatIP(externalIpv4);}build.addAccessConfigs(accessConfig.build());}returnbuild.build();}}

from__future__importannotationsimportreimportsysfromtypingimportAnyimportwarningsfromgoogle.api_core.extended_operationimportExtendedOperationfromgoogle.cloudimportcompute_v1defget_image_from_family(project:str,family:str)->compute_v1.Image:"""    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-detailsnewest_image=image_client.get_from_family(project=project,family=family)returnnewest_imagedefdisk_from_image(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_imageinitialize_params.disk_size_gb=disk_size_gbinitialize_params.disk_type=disk_typeboot_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_deleteboot_disk.boot=bootreturnboot_diskdefwait_for_extended_operation(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)ifoperation.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)raiseoperation.exception()orRuntimeError(operation.error_message)ifoperation.warnings:print(f"Warnings during{verbose_name}:\n",file=sys.stderr,flush=True)forwarninginoperation.warnings:print(f" -{warning.code}:{warning.message}",file=sys.stderr,flush=True)returnresultdefcreate_instance(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_linkifsubnetwork_link:network_interface.subnetwork=subnetwork_linkifinternal_ip:network_interface.network_i_p=internal_ipifexternal_access:access=compute_v1.AccessConfig()access.type_=compute_v1.AccessConfig.Type.ONE_TO_ONE_NAT.nameaccess.name="External NAT"access.network_tier=access.NetworkTier.PREMIUM.nameifexternal_ipv4:access.nat_i_p=external_ipv4network_interface.access_configs=[access]# Collect information into the Instance object.instance=compute_v1.Instance()instance.network_interfaces=[network_interface]instance.name=instance_nameinstance.disks=disksifre.match(r"^zones/[a-z\d\-]+/machineTypes/[a-z\d\-]+$",machine_type):instance.machine_type=machine_typeelse:instance.machine_type=f"zones/{zone}/machineTypes/{machine_type}"instance.scheduling=compute_v1.Scheduling()ifaccelerators:instance.guest_accelerators=acceleratorsinstance.scheduling.on_host_maintenance=(compute_v1.Scheduling.OnHostMaintenance.TERMINATE.name)ifpreemptible:# Set the preemptible settingwarnings.warn("Preemptible VMs are being replaced by Spot VMs.",DeprecationWarning)instance.scheduling=compute_v1.Scheduling()instance.scheduling.preemptible=Trueifspot:# Set the Spot VM settinginstance.scheduling.provisioning_model=(compute_v1.Scheduling.ProvisioningModel.SPOT.name)instance.scheduling.instance_termination_action=instance_termination_actionifcustom_hostnameisnotNone:# Set the custom hostname for the instanceinstance.hostname=custom_hostnameifdelete_protection:# Set the delete protection bitinstance.deletion_protection=True# Prepare the request to insert an instance.request=compute_v1.InsertInstanceRequest()request.zone=zonerequest.project=project_idrequest.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.")returninstance_client.get(project=project_id,zone=zone,instance=instance_name)defassign_static_external_ip_to_new_vm(project_id:str,zone:str,instance_name:str,ip_address:str)->compute_v1.Instance:"""    Create a new VM instance with assigned static external IP address.    Args:        project_id (str): project ID or project number of the Cloud project you want to use.        zone (str): name of the zone to create the instance in. For example: "us-west3-b"        instance_name (str): name of the new virtual machine (VM) instance.        ip_address(str): external address to be assigned to this instance. It must live in the same        region as the zone of the instance and be precreated before function called.    Returns:        Instance object.    """newest_debian=get_image_from_family(project="debian-cloud",family="debian-12")disk_type=f"zones/{zone}/diskTypes/pd-standard"disks=[disk_from_image(disk_type,10,True,newest_debian.self_link,True)]instance=create_instance(project_id,zone,instance_name,disks,external_ipv4=ip_address,external_access=True,)returninstance

import("context""fmt""io""google.golang.org/protobuf/proto"compute"cloud.google.com/go/compute/apiv1""cloud.google.com/go/compute/apiv1/computepb")// assignStaticAddressToExistingVM assigns a static external IP address to an existing VM instance.// Note: VM and assigned IP must be in the same region.funcassignStaticAddressToExistingVM(wio.Writer,projectID,zone,instanceName,IPAddress,networkInterfaceNamestring)error{// projectID := "your_project_id"// zone := "europe-central2-b"// instanceName := "your_instance_name"// IPAddress := "34.111.222.333"// networkInterfaceName := "nic0"ctx:=context.Background()instancesClient,err:=compute.NewInstancesRESTClient(ctx)iferr!=nil{returnfmt.Errorf("NewInstancesRESTClient: %w",err)}deferinstancesClient.Close()reqGet:=&computepb.GetInstanceRequest{Project:projectID,Zone:zone,Instance:instanceName,}instance,err:=instancesClient.Get(ctx,reqGet)iferr!=nil{returnfmt.Errorf("could not get instance: %w",err)}varnetworkInterface*computepb.NetworkInterfacefor_,ni:=rangeinstance.NetworkInterfaces{if*ni.Name==networkInterfaceName{networkInterface=nibreak}}ifnetworkInterface==nil{returnfmt.Errorf("No network interface named '%s' found on instance %s",networkInterfaceName,instanceName)}varaccessConfig*computepb.AccessConfigfor_,ac:=rangenetworkInterface.AccessConfigs{if*ac.Type==computepb.AccessConfig_ONE_TO_ONE_NAT.String(){accessConfig=acbreak}}ifaccessConfig!=nil{// network interface is immutable - deletion stage is required in case of any assigned ip (static or ephemeral).reqDelete:=&computepb.DeleteAccessConfigInstanceRequest{Project:projectID,Zone:zone,Instance:instanceName,AccessConfig:*accessConfig.Name,NetworkInterface:networkInterfaceName,}opDelete,err:=instancesClient.DeleteAccessConfig(ctx,reqDelete)iferr!=nil{returnfmt.Errorf("unable to delete access config: %w",err)}iferr=opDelete.Wait(ctx);err!=nil{returnfmt.Errorf("unable to wait for the operation: %w",err)}}reqAdd:=&computepb.AddAccessConfigInstanceRequest{Project:projectID,Zone:zone,Instance:instanceName,AccessConfigResource:&computepb.AccessConfig{NatIP:&IPAddress,Type:proto.String(computepb.AccessConfig_ONE_TO_ONE_NAT.String()),},NetworkInterface:networkInterfaceName,}opAdd,err:=instancesClient.AddAccessConfig(ctx,reqAdd)iferr!=nil{returnfmt.Errorf("unable to add access config: %w",err)}iferr=opAdd.Wait(ctx);err!=nil{returnfmt.Errorf("unable to wait for the operation: %w",err)}fmt.Fprintf(w,"Static address %s assigned to the instance %s\n",IPAddress,instanceName)returnnil}

importcom.google.cloud.compute.v1.AccessConfig;importcom.google.cloud.compute.v1.AccessConfig.Type;importcom.google.cloud.compute.v1.Instance;importcom.google.cloud.compute.v1.InstancesClient;importcom.google.cloud.compute.v1.NetworkInterface;importjava.io.IOException;importjava.util.concurrent.ExecutionException;importjava.util.concurrent.TimeUnit;importjava.util.concurrent.TimeoutException;publicclassAssignStaticExistingVm{publicstaticvoidmain(String[]args)throwsIOException,ExecutionException,InterruptedException,TimeoutException{// TODO(developer): Replace these variables before running the sample.// Project ID or project number of the Google Cloud project you want to use.StringprojectId="your-project-id";// Instance ID of the Google Cloud project you want to use.StringinstanceId="your-instance-id";// Name of the zone to create the instance in. For example: "us-west3-b"Stringzone="your-zone-id";// Name of the network interface to assign.StringnetInterfaceName="your-netInterfaceName-id";assignStaticExistingVmAddress(projectId,instanceId,zone,netInterfaceName);}// Updates or creates an access configuration for a VM instance to assign a static external IP.// As network interface is immutable - deletion stage is required// in case of any assigned ip (static or ephemeral).// VM and ip address must be created before calling this function.// IMPORTANT: VM and assigned IP must be in the same region.publicstaticInstanceassignStaticExistingVmAddress(StringprojectId,StringinstanceId,Stringzone,StringnetInterfaceName)throwsIOException,ExecutionException,InterruptedException,TimeoutException{// Initialize client that will be used to send requests. This client only needs to be created// once, and can be reused for multiple requests.try(InstancesClientclient=InstancesClient.create()){Instanceinstance=client.get(projectId,zone,instanceId);NetworkInterfacenetworkInterface=null;for(NetworkInterfacenetInterface:instance.getNetworkInterfacesList()){if(netInterface.getName().equals(netInterfaceName)){networkInterface=netInterface;break;}}if(networkInterface==null){thrownewIllegalArgumentException(String.format("No '{network_interface_name}' variable found on instance %s.",instanceId));}AccessConfigaccessConfig=null;for(AccessConfigconfig:networkInterface.getAccessConfigsList()){if(config.getType().equals(Type.ONE_TO_ONE_NAT.name())){accessConfig=config;break;}}if(accessConfig!=null){// Delete the existing access configuration firstclient.deleteAccessConfigAsync(projectId,zone,instanceId,accessConfig.getName(),netInterfaceName).get(30,TimeUnit.SECONDS);}// Add a new access configuration with the new IPAccessConfignewAccessConfig=AccessConfig.newBuilder()// Leave this field undefined to use an IP from a shared ephemeral IP address pool// .setNatIP(ipAddress).setType(Type.ONE_TO_ONE_NAT.name()).setName("external-nat").build();client.addAccessConfigAsync(projectId,zone,instanceId,netInterfaceName,newAccessConfig).get(30,TimeUnit.SECONDS);// return updated instancereturnclient.get(projectId,zone,instanceId);}}}

importuuidfromgoogle.cloud.compute_v1importInstancesClientfromgoogle.cloud.compute_v1.typesimportAccessConfigfromgoogle.cloud.compute_v1.typesimportAddAccessConfigInstanceRequestfromgoogle.cloud.compute_v1.typesimportDeleteAccessConfigInstanceRequestdefassign_static_ip_to_existing_vm(project_id:str,zone:str,instance_name:str,ip_address:str,network_interface_name:str="nic0",):"""    Updates or creates an access configuration for a VM instance to assign a static external IP.    As network interface is immutable - deletion stage is required in case of any assigned ip (static or ephemeral).    VM and ip address must be created before calling this function.    IMPORTANT: VM and assigned IP must be in the same region.    Args:        project_id (str): Project ID.        zone (str): Zone where the VM is located.        instance_name (str): Name of the VM instance.        ip_address (str): New static external IP address to assign to the VM.        network_interface_name (str): Name of the network interface to assign.    Returns:        google.cloud.compute_v1.types.Instance: Updated instance object.    """client=InstancesClient()instance=client.get(project=project_id,zone=zone,instance=instance_name)network_interface=next((niforniininstance.network_interfacesifni.name==network_interface_name),None,)ifnetwork_interfaceisNone:raiseValueError(f"No network interface named '{network_interface_name}' found on instance{instance_name}.")access_config=next((acforacinnetwork_interface.access_configsifac.type_=="ONE_TO_ONE_NAT"),None,)ifaccess_config:# Delete the existing access configuration firstdelete_request=DeleteAccessConfigInstanceRequest(project=project_id,zone=zone,instance=instance_name,access_config=access_config.name,network_interface=network_interface_name,request_id=str(uuid.uuid4()),)delete_operation=client.delete_access_config(delete_request)delete_operation.result()# Add a new access configuration with the new IPadd_request=AddAccessConfigInstanceRequest(project=project_id,zone=zone,instance=instance_name,network_interface="nic0",access_config_resource=AccessConfig(nat_i_p=ip_address,type_="ONE_TO_ONE_NAT",name="external-nat"),request_id=str(uuid.uuid4()),)add_operation=client.add_access_config(add_request)add_operation.result()updated_instance=client.get(project=project_id,zone=zone,instance=instance_name)returnupdated_instance

importcom.google.cloud.compute.v1.AccessConfig;importcom.google.cloud.compute.v1.AccessConfig.Type;importcom.google.cloud.compute.v1.Instance;importcom.google.cloud.compute.v1.InstancesClient;importcom.google.cloud.compute.v1.NetworkInterface;importjava.io.IOException;importjava.util.concurrent.ExecutionException;importjava.util.concurrent.TimeUnit;importjava.util.concurrent.TimeoutException;publicclassUnassignStaticIpAddress{publicstaticvoidmain(String[]args)throwsIOException,ExecutionException,InterruptedException,TimeoutException{// TODO(developer): Replace these variables before running the sample.// Project ID or project number of the Google Cloud project you want to use.StringprojectId="your-project-id";// Instance ID of the Google Cloud project you want to use.StringinstanceId="your-instance-id";// Name of the zone to create the instance in. For example: "us-west3-b"Stringzone="your-zone";// Name of the network interface to assign.StringnetInterfaceName="your-netInterfaceName";unassignStaticIpAddress(projectId,instanceId,zone,netInterfaceName);}publicstaticInstanceunassignStaticIpAddress(StringprojectId,StringinstanceId,Stringzone,StringnetInterfaceName)throwsIOException,ExecutionException,InterruptedException,TimeoutException{// Initialize client that will be used to send requests. This client only needs to be created// once, and can be reused for multiple requests.try(InstancesClientclient=InstancesClient.create()){Instanceinstance=client.get(projectId,zone,instanceId);NetworkInterfacenetworkInterface=null;for(NetworkInterfacenetIterface:instance.getNetworkInterfacesList()){if(netIterface.getName().equals(netInterfaceName)){networkInterface=netIterface;break;}}if(networkInterface==null){thrownewIllegalArgumentException(String.format("No '{network_interface_name}' variable found on instance %s.",instanceId));}AccessConfigaccessConfig=null;for(AccessConfigconfig:networkInterface.getAccessConfigsList()){if(config.getType().equals(Type.ONE_TO_ONE_NAT.name())){accessConfig=config;break;}}if(accessConfig!=null){// Delete the existing access configuration firstclient.deleteAccessConfigAsync(projectId,zone,instanceId,accessConfig.getName(),netInterfaceName).get(30,TimeUnit.SECONDS);}// return updated instancereturnclient.get(projectId,zone,instanceId);}}}

importuuidfromgoogle.cloud.compute_v1importInstancesClientfromgoogle.cloud.compute_v1.typesimportDeleteAccessConfigInstanceRequestdefunassign_static_ip_from_existing_vm(project_id:str,zone:str,instance_name:str,network_interface_name:str="nic0",):"""    Updates access configuration for a VM instance to unassign a static external IP.    VM (and IP address in case of static IP assigned) must be created before calling this function.    Args:        project_id (str): Project ID.        zone (str): Zone where the VM is located.        instance_name (str): Name of the VM instance.        network_interface_name (str): Name of the network interface to unassign.    """client=InstancesClient()instance=client.get(project=project_id,zone=zone,instance=instance_name)network_interface=next((niforniininstance.network_interfacesifni.name==network_interface_name),None,)ifnetwork_interfaceisNone:raiseValueError(f"No network interface named '{network_interface_name}' found on instance{instance_name}.")access_config=next((acforacinnetwork_interface.access_configsifac.type_=="ONE_TO_ONE_NAT"),None,)ifaccess_config:# Delete the existing access configurationdelete_request=DeleteAccessConfigInstanceRequest(project=project_id,zone=zone,instance=instance_name,access_config=access_config.name,network_interface=network_interface_name,request_id=str(uuid.uuid4()),)delete_operation=client.delete_access_config(delete_request)delete_operation.result()updated_instance=client.get(project=project_id,zone=zone,instance=instance_name)returnupdated_instance