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createTemplateFromInstance.js
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createTemplateFromInstance.js
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// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* Creates a new instance template based on an existing instance.
*
* @param {string} projectId - Project ID or project number of the Cloud project you use.
* @param {string} instance - The instance to base the new template on. This value uses
* the following format: "projects/{project}/zones/{zone}/instances/{instance_name}"
* @param {string} templateName - Name of the new template to create.
*/
function main(projectId, instance, templateName) {
// [START compute_template_create_from_instance]
/**
* TODO(developer): Uncomment and replace these variables before running the sample.
*/
// const projectId = 'YOUR_PROJECT_ID';
// const instance = 'projects/project/zones/zone/instances/instance';
// const templateName = 'your_template_name';
const compute = require('@google-cloud/compute');
// Create a new instance template based on an existing instance.
// This new template specifies a different boot disk.
async function createTemplateFromInstance() {
const instanceTemplatesClient = new compute.InstanceTemplatesClient();
const [response] = await instanceTemplatesClient.insert({
project: projectId,
instanceTemplateResource: {
name: templateName,
sourceInstance: instance,
sourceInstanceParams: {
diskConfigs: [
{
// Device name must match the name of a disk attached to the instance
// your template is based on.
deviceName: 'disk-1',
// Replace the original boot disk image used in your instance with a Rocky Linux image.
instantiateFrom: 'CUSTOM_IMAGE',
customImage:
'projects/rocky-linux-cloud/global/images/family/rocky-linux-8',
// Override the auto_delete setting.
autoDelete: true,
},
],
},
},
});
let operation = response.latestResponse;
const operationsClient = new compute.GlobalOperationsClient();
// Wait for the create operation to complete.
while (operation.status !== 'DONE') {
[operation] = await operationsClient.wait({
operation: operation.name,
project: projectId,
});
}
console.log('Instance template created.');
}
createTemplateFromInstance();
// [END compute_template_create_from_instance]
}
process.on('unhandledRejection', err => {
console.error(err.message);
process.exitCode = 1;
});
main(...process.argv.slice(2));