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| 1 | +/* |
| 2 | + * Copyright 2024 Google LLC |
| 3 | + * |
| 4 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + * you may not use this file except in compliance with the License. |
| 6 | + * You may obtain a copy of the License at |
| 7 | + * |
| 8 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | + * |
| 10 | + * Unless required by applicable law or agreed to in writing, software |
| 11 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + * See the License for the specific language governing permissions and |
| 14 | + * limitations under the License. |
| 15 | + */ |
| 16 | + |
| 17 | +package compute.reservation; |
| 18 | + |
| 19 | +// [START compute_consume_single_project_reservation] |
| 20 | +import static com.google.cloud.compute.v1.ReservationAffinity.ConsumeReservationType.SPECIFIC_RESERVATION; |
| 21 | + |
| 22 | +import com.google.api.gax.longrunning.OperationFuture; |
| 23 | +import com.google.cloud.compute.v1.AttachedDisk; |
| 24 | +import com.google.cloud.compute.v1.AttachedDiskInitializeParams; |
| 25 | +import com.google.cloud.compute.v1.InsertInstanceRequest; |
| 26 | +import com.google.cloud.compute.v1.Instance; |
| 27 | +import com.google.cloud.compute.v1.InstancesClient; |
| 28 | +import com.google.cloud.compute.v1.NetworkInterface; |
| 29 | +import com.google.cloud.compute.v1.Operation; |
| 30 | +import com.google.cloud.compute.v1.ReservationAffinity; |
| 31 | +import java.io.IOException; |
| 32 | +import java.util.concurrent.ExecutionException; |
| 33 | +import java.util.concurrent.TimeUnit; |
| 34 | +import java.util.concurrent.TimeoutException; |
| 35 | + |
| 36 | +public class ConsumeSingleProjectReservation { |
| 37 | + public static void main(String[] args) |
| 38 | + throws IOException, ExecutionException, InterruptedException, TimeoutException { |
| 39 | + // TODO(developer): Replace these variables before running the sample. |
| 40 | + // Project ID or project number of the Cloud project you want to use. |
| 41 | + String projectId = "YOUR_PROJECT_ID"; |
| 42 | + // Name of the zone where the reservation is located. |
| 43 | + String zone = "us-central1-a"; |
| 44 | + // Name of the reservation you want to query. |
| 45 | + String reservationName = "YOUR_RESERVATION_NAME"; |
| 46 | + // Name of the VM instance you want to query. |
| 47 | + String instanceName = "YOUR_INSTANCE_NAME"; |
| 48 | + // machineType: machine type of the VM being created. |
| 49 | + // * For a list of machine types, see https://cloud.google.com/compute/docs/machine-types |
| 50 | + String machineTypeName = "n1-standard-4"; |
| 51 | + // sourceImage: path to the operating system image to mount. |
| 52 | + // * For details about images you can mount, see https://cloud.google.com/compute/docs/images |
| 53 | + String sourceImage = "projects/debian-cloud/global/images/family/debian-11"; |
| 54 | + // diskSizeGb: storage size of the boot disk to attach to the instance. |
| 55 | + long diskSizeGb = 10L; |
| 56 | + // networkName: network interface to associate with the instance. |
| 57 | + String networkName = "default"; |
| 58 | + // Minimum CPU platform of the instances. |
| 59 | + String minCpuPlatform = "Intel Skylake"; |
| 60 | + |
| 61 | + createInstanceAsync(projectId, zone, instanceName, reservationName, machineTypeName, |
| 62 | + sourceImage, diskSizeGb, networkName, minCpuPlatform); |
| 63 | + } |
| 64 | + |
| 65 | + // Create a virtual machine targeted with the reserveAffinity field. |
| 66 | + // Ensure that the VM's properties match the reservation's VM properties. |
| 67 | + public static Instance createInstanceAsync(String projectId, String zone, String instanceName, |
| 68 | + String reservationName, String machineTypeName, String sourceImage, long diskSizeGb, |
| 69 | + String networkName, String minCpuPlatform) |
| 70 | + throws IOException, InterruptedException, ExecutionException, TimeoutException { |
| 71 | + String machineType = String.format("zones/%s/machineTypes/%s", zone, machineTypeName); |
| 72 | + // Initialize client that will be used to send requests. This client only needs to be created |
| 73 | + // once, and can be reused for multiple requests. |
| 74 | + try (InstancesClient instancesClient = InstancesClient.create()) { |
| 75 | + AttachedDisk disk = |
| 76 | + AttachedDisk.newBuilder() |
| 77 | + .setBoot(true) |
| 78 | + .setAutoDelete(true) |
| 79 | + .setType(AttachedDisk.Type.PERSISTENT.toString()) |
| 80 | + .setDeviceName("disk-1") |
| 81 | + .setInitializeParams( |
| 82 | + AttachedDiskInitializeParams.newBuilder() |
| 83 | + .setSourceImage(sourceImage) |
| 84 | + .setDiskSizeGb(diskSizeGb) |
| 85 | + .build()) |
| 86 | + .build(); |
| 87 | + |
| 88 | + NetworkInterface networkInterface = NetworkInterface.newBuilder() |
| 89 | + .setName(networkName) |
| 90 | + .build(); |
| 91 | + |
| 92 | + ReservationAffinity reservationAffinity = |
| 93 | + ReservationAffinity.newBuilder() |
| 94 | + .setConsumeReservationType(SPECIFIC_RESERVATION.toString()) |
| 95 | + .setKey("compute.googleapis.com/reservation-name") |
| 96 | + // Set specific reservation |
| 97 | + .addValues(reservationName) |
| 98 | + .build(); |
| 99 | + |
| 100 | + Instance instanceResource = |
| 101 | + Instance.newBuilder() |
| 102 | + .setName(instanceName) |
| 103 | + .setMachineType(machineType) |
| 104 | + .addDisks(disk) |
| 105 | + .addNetworkInterfaces(networkInterface) |
| 106 | + .setMinCpuPlatform(minCpuPlatform) |
| 107 | + .setReservationAffinity(reservationAffinity) |
| 108 | + .build(); |
| 109 | + |
| 110 | + InsertInstanceRequest insertInstanceRequest = InsertInstanceRequest.newBuilder() |
| 111 | + .setProject(projectId) |
| 112 | + .setZone(zone) |
| 113 | + .setInstanceResource(instanceResource) |
| 114 | + .build(); |
| 115 | + |
| 116 | + OperationFuture<Operation, Operation> operation = instancesClient.insertAsync( |
| 117 | + insertInstanceRequest); |
| 118 | + Operation response = operation.get(3, TimeUnit.MINUTES); |
| 119 | + |
| 120 | + if (response.hasError()) { |
| 121 | + return null; |
| 122 | + } |
| 123 | + return instancesClient.get(projectId, zone, instanceName); |
| 124 | + } |
| 125 | + } |
| 126 | +} |
| 127 | +// [END compute_consume_single_project_reservation] |
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