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Scheduled EC2 Instance Type Modification using Lambda and CloudWatch Events
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| // Demonstration video can be found at: https://youtu.be/_gJyK1-NGq8 | |
| // ModifyEC2InstanceType | |
| const AWS = require('aws-sdk'); | |
| exports.handler = (event, context, callback) => { | |
| const { instanceId, instanceRegion, instanceType } = event; | |
| const ec2 = new AWS.EC2({ region: instanceRegion }); | |
| Promise.resolve() | |
| .then(() => ec2.stopInstances({ InstanceIds: [instanceId] }).promise()) | |
| .then(() => ec2.waitFor('instanceStopped', { InstanceIds: [instanceId] }).promise()) | |
| .then(() => ec2.modifyInstanceAttribute({InstanceId: instanceId, InstanceType: { Value: instanceType } }).promise()) | |
| .then(() => ec2.startInstances({ InstanceIds: [instanceId] }).promise()) | |
| .then(() => callback(null, `Successfully modified ${event.instanceId} to ${event.instanceType}`)) | |
| .catch(err => callback(err)); | |
| }; |
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