AWS EC2 Schedule to Start/Stop

0-aws-lamda-start-stop-instances.md

AWS Schedule to Start/Stop EC2

by Cloud Watch and Lamda Function

1-lamda-start-instances.js

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

exports.handler = function(event, context) {
    var ec2 = new AWS.EC2();
    var instances =  event.instances.split(/[,;]/);
    var params = {
        InstanceIds: instances
    };
    ec2.startInstances(params, function(err, data) {
      if (err) {
          console.log(err, err.stack); // an error occurred
          throw err;
      }else {
         context.done(null, 'Started instances '+JSON.stringify(instances));
      }
    });
  
};

2-lamda-stop-instances.js

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

exports.handler = function(event, context) {
    var ec2 = new AWS.EC2();
    var instances =  event.instances.split(/[,;]/);
    var params = {
        InstanceIds: instances
    };
    ec2.stopInstances(params, function(err, data) {
      if (err) {
          console.log(err, err.stack); // an error occurred
          throw err;
      }else {
         context.done(null, 'Stopped instances '+JSON.stringify(instances));
      }
    });
  
};

3-aws-iam-role-for-lamda.json

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Sid": "CloudWatchEventsFullAccess",
      "Effect": "Allow",
      "Action": "events:*",
      "Resource": "*"
    },
    {
      "Sid": "IAMPassRoleForCloudWatchEvents",
      "Effect": "Allow",
      "Action": "iam:PassRole",
      "Resource": "arn:aws:iam::*:role/AWS_Events_Invoke_Targets"
    },
    {
      "Effect": "Allow",
      "Action": [
        "logs:CreateLogGroup",
        "logs:CreateLogStream",
        "logs:PutLogEvents"
      ],
      "Resource": "arn:aws:logs:*:*:*"
    },
    {
      "Effect": "Allow",
      "Action": [
        "ec2:DescribeInstances",
        "ec2:StopInstances",
        "ec2:StartInstances"
      ],
      "Resource": [
        "*"
      ]
    }
  ]
}

4-img-cloud-watch.png

5-img-lamda.png