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lambdachecker.js
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lambdachecker.js
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'use strict';
const AWS = require('aws-sdk');
const codedeploy = new AWS.CodeDeploy({apiVersion: '2014-10-06'});
var lambda = new AWS.Lambda();
exports.handler = (event, context, callback) => {
console.log("Entering PreTraffic Hook!");
console.log(event);
// Read the DeploymentId & LifecycleEventHookExecutionId from the event payload
var deploymentId = event.DeploymentId;
var lifecycleEventHookExecutionId = event.LifecycleEventHookExecutionId;
var functionToTest = process.env.NewVersion;
console.log("Testing new function version: " + functionToTest);
// Perform validation of the newly deployed Lambda version
var lambdaParams = {
FunctionName: functionToTest,
InvocationType: "RequestResponse",
Payload: new Buffer('{ "body": "Call now and get 80% discount on your next pair of shoes! Call 8003344555!", "httpMethod": "POST" }') };
var lambdaResult = 'Failed'
lambda.invoke(lambdaParams, function(err, data) {
if (err){ // an error occurred
console.log(err, err.stack);
lambdaResult = "Failed";
}
else{ // successful response
var result = JSON.parse(data.Payload);
console.log("Result: " + JSON.stringify(result));
if (result['statusCode'] == 200) {
lambdaResult = "Succeeded";
}
else {
lambdaResult = "Failed";
}
// Check the response for valid results
// The response will be a JSON payload with statusCode and body properties. ie:
// {
// "statusCode": 200,
// "body": 51
// }
// Complete the PreTraffic Hook by sending CodeDeploy the validation status
var params = {
deploymentId: deploymentId,
lifecycleEventHookExecutionId: lifecycleEventHookExecutionId,
status: lambdaResult // status can be 'Succeeded' or 'Failed'
};
// Pass AWS CodeDeploy the prepared validation test results.
codedeploy.putLifecycleEventHookExecutionStatus(params, function(err, data) {
if (err) {
// Validation failed.
console.log('CodeDeploy Status update failed');
console.log(err, err.stack);
callback("CodeDeploy Status update failed");
} else {
// Validation succeeded.
console.log('Codedeploy status updated successfully');
callback(null, 'Codedeploy status updated successfully');
}
});
}
});
}