Scheduled Start/Stop of EC2 Instances using Lambda and CloudWatch Events

start-stop-ec2-instances.js

// Demonstration video can be found at: https://youtu.be/roAerKVfq-Y

// StopEC2Instance

const AWS = require('aws-sdk');

exports.handler = (event, context, callback) => {
    const ec2 = new AWS.EC2({ region: event.instanceRegion });
    
    ec2.stopInstances({ InstanceIds: [event.instanceId] }).promise()
        .then(() => callback(null, `Successfully stopped ${event.instanceId}`))
        .catch(err => callback(err));
};

// StartEC2Instance

const AWS = require('aws-sdk');

exports.handler = (event, context, callback) => {
    const ec2 = new AWS.EC2({ region: event.instanceRegion });
    
    ec2.startInstances({ InstanceIds: [event.instanceId] }).promise()
        .then(() => callback(null, `Successfully started ${event.instanceId}`))
        .catch(err => callback(err));
};

hello,
can you hep me in how to schedule start/stop for RDS.

Hi Edd,

Thanks for this, it's very helpful for my situation.

However I have server that should be start in series, and it should check that the prior server has the service UP before attempting to start itself. i.e. Ping or Test with a simple telnet to specified ports. Would it be possible that Lamda can do something like that ?

Many thanks.

Very helpful! thanks so much!!!!!!!!!!

Thanks for help

hello,
can you hep me in how to schedule start/stop for RDS.

Use Serverless RDS type, You can specify the minimum and maximum amount of resources needed.

For anyone who wants to archive the same behavior with Amazon RDS

Start rds database

const AWS = require('aws-sdk');

exports.handler = (event, context, callback) => {
    const rds = new AWS.RDS();

    var params = {
      DBInstanceIdentifier: event.dbIdentifier,
    };

    rds.startDBInstance(params, function(err, data) {
      if (err) {
        console.log(err, err.stack); // an error occurred
      } else {
        console.log('Database started');
      }
    });
}

Stop rds database

const AWS = require('aws-sdk');

exports.handler = (event, context, callback) => {
  const rds = new AWS.RDS();

  var params = {
    DBInstanceIdentifier: event.dbIdentifier,
  };

  rds.stopDBInstance(params, function(err, data) {
    if (err) {
      console.log(err, err.stack); // an error occurred
    } else {
      console.log('Database stoped');
    }
});

Node 12+ version:

Stop Instance

const AWS = require('aws-sdk');

exports.handler = async (event) => {
    const ec2 = new AWS.EC2({ region: event.instanceRegion });
    
    await ec2.stopInstances({ InstanceIds: [event.instanceId] }).promise();
    
    const response = {
        statusCode: 200,
        body: JSON.stringify(`EC2 ${event.instanceId} is stopped successfully`),
    };
    return response;
};

Start Instance

const AWS = require('aws-sdk');

exports.handler = async (event) => {
    const ec2 = new AWS.EC2({ region: event.instanceRegion });
    
    await ec2.startInstances({ InstanceIds: [event.instanceId] }).promise();
    
    const response = {
        statusCode: 200,
        body: JSON.stringify(`EC2 ${event.instanceId} is started successfully`),
    };
    return response;
};

thank You! nice tutorial by the way

help:

1)EC2 instances - i have mutiple servers and i would like to start/stop using above code...Can anyone help me how to use the code
2) can i merge rds & ec2 stop/start code in one funtion ?

Watch this Video if u want to use it https://www.youtube.com/watch?v=roAerKVfq-Y

hello, I have a question, it is possible to start an instance as demand increases??
I have a service in nodejs in a t2micro instance, but I want that when the cpu exceeds a% immediately start another EC2

@eddmann thanks a lot, helped me automate my clients' services.

@ChenLi0830 thanks to update script to node 12+

Congrats !

help:

1)EC2 instances - i have mutiple servers and i would like to start/stop using above code...Can anyone help me how to use the code
2) can i merge rds & ec2 stop/start code in one funtion ?

yes, with lambda you have the power of code in your hands, so you can do all things that you want. You could add commands to start another EC2 instances for example. Just you need is aws sdk to execute like as CLI commands.