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/**
* Copyright 2024 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.
*/
// sample-metadata:
// title: Creates a instance with autoscaling config.
// usage: node instance-with-autoscaling-config.js <INSTANCE_ID> <PROJECT_ID>
'use strict';
function main(instanceId = 'my-instance', projectId = 'my-project-id') {
async function createInstanceWithAutoscalingConfig() {
// [START spanner_create_instance_with_autoscaling_config]
// Imports the Google Cloud client library
const {Spanner, protos} = require('@google-cloud/spanner');
/**
* TODO(developer): Uncomment the following lines before running the sample.
*/
// const projectId = 'my-project-id';
// const instanceId = 'my-instance';
// Creates a client
const spanner = new Spanner({
projectId: projectId,
});
// Get the instance admin client
const instanceAdminClient = spanner.getInstanceAdminClient();
const autoscalingConfig =
protos.google.spanner.admin.instance.v1.AutoscalingConfig.create({
// Only one of minNodes/maxNodes or minProcessingUnits/maxProcessingUnits can be set.
autoscalingLimits:
protos.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingLimits.create(
{
minNodes: 1,
maxNodes: 2,
},
),
// highPriorityCpuUtilizationPercent and storageUtilizationPercent are both
// percentages and must lie between 0 and 100.
autoscalingTargets:
protos.google.spanner.admin.instance.v1.AutoscalingConfig.AutoscalingTargets.create(
{
highPriorityCpuUtilizationPercent: 65,
storageUtilizationPercent: 95,
},
),
});
// Creates a new instance with autoscaling configuration
// When autoscalingConfig is enabled, nodeCount and processingUnits fields
// need not be specified.
try {
console.log(
`Creating instance ${instanceAdminClient.instancePath(
projectId,
instanceId,
)}.`,
);
const [operation] = await instanceAdminClient.createInstance({
instanceId: instanceId,
parent: instanceAdminClient.projectPath(projectId),
instance: {
config: instanceAdminClient.instanceConfigPath(
projectId,
'regional-us-central1',
),
displayName: 'Display name for the instance.',
autoscalingConfig: autoscalingConfig,
labels: {
cloud_spanner_samples: 'true',
created: Math.round(Date.now() / 1000).toString(), // current time
},
// Managed autoscaler is available only for ENTERPRISE edition
edition:
protos.google.spanner.admin.instance.v1.Instance.Edition.ENTERPRISE,
},
});
console.log(`Waiting for operation on ${instanceId} to complete...`);
await operation.promise();
console.log(`Created instance ${instanceId}.`);
// get instance metadata
const [metadata] = await instanceAdminClient.getInstance({
name: instanceAdminClient.instancePath(projectId, instanceId),
});
console.log(
`Autoscaling configurations of ${instanceId} are: ` +
'\n' +
`Min nodes: ${metadata.autoscalingConfig.autoscalingLimits.minNodes} ` +
'nodes.' +
'\n' +
`Max nodes: ${metadata.autoscalingConfig.autoscalingLimits.maxNodes}` +
' nodes.' +
'\n' +
`High priority cpu utilization percent: ${metadata.autoscalingConfig.autoscalingTargets.highPriorityCpuUtilizationPercent}.` +
'\n' +
`Storage utilization percent: ${metadata.autoscalingConfig.autoscalingTargets.storageUtilizationPercent}.`,
);
} catch (err) {
console.error('ERROR:', err);
}
// [END spanner_create_instance_with_autoscaling_config]
}
createInstanceWithAutoscalingConfig();
}
process.on('unhandledRejection', err => {
console.error(err.message);
process.exitCode = 1;
});
main(...process.argv.slice(2));