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AWS Lambda function to set an Auto Scaling instance to be Unhealthy in response to a SNS message
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console.log('Loading event'); | |
var aws = require('aws-sdk'); | |
var s3 = new aws.S3({apiVersion: '2006-03-01'}); | |
var autoscaling = new aws.AutoScaling({apiVersion: '2011-01-01'}); | |
exports.handler = function(event, context) { | |
console.log('Received event:'); | |
console.log(event); | |
//console.log(typeof event.Subject); | |
if (event.hasOwnProperty('Message')) { | |
var msg = event.Message.replace(/!!/g,'"'); | |
var instance_id = JSON.parse(msg).Trigger.Dimensions[0].value; | |
console.log('Changing instance health for: ' + instance_id); | |
var params = { | |
HealthStatus: 'Unhealthy', /* required */ | |
InstanceId: instance_id, /* required */ | |
ShouldRespectGracePeriod: false | |
}; | |
autoscaling.setInstanceHealth(params, function(err, data) { | |
if (err) { | |
console.log(err, err.stack); // an error occurred | |
context.done('error','error: '+err); | |
} | |
else { | |
console.log(data); // successful response | |
context.done(null,''); | |
} | |
}); | |
} | |
else { | |
console.log('No message'); | |
context.done(null,''); | |
} | |
}; |
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