CODEWITHSUNDEEP
javascriptnode.jsamazon-ec2aws-sdk
abhishek bv
abhishek bv

Reputation: 81

Cannot connect to AWS EC2 using AWS-sdk

I am using aws-sdk with node.js and I am not able to establish a connection to aws ec2 to obtain instance details using the sdk.

This is the error:

Error Error: connect ENETUNREACH 
at Object.exports._errnoException (util.js:1020:11)
at exports._exceptionWithHostPort (util.js:1043:20)
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1086:14)

And this is the piece of code I have written: I have removed the access keys for security purpose.

var express = require("express");
var mysql = require('mysql');
var connection = mysql.createConnection({
  host: 'localhost',
  user: '',
  password: '',
  database: ''
});

var app = express();
// Load the SDK for JavaScript
var AWS = require('aws-sdk');
// Set the region 
AWS.config.update({
  region: 'us-east-1'
});

var AWS_ACCESS_KEY_ID = '';
var AWS_SECRET_ACCESS_KEY = '';

var params = {
  DryRun: false
};

ec2 = new AWS.EC2({
  apiVersion: '2016-11-15'
});
ec2.describeInstances(params, function(err, data) {
  if (err) {
    console.log("Error", err.stack);
  } else {
    console.log("Success", JSON.stringify(data));
    res.send({
      message: data
    });
  }
});

app.listen(443);
console.log("The node server is running at port 443");

Is there a way to fix this? I am using aws-sdk for the first time. Thanks in advance.

Upvotes: 0

Views: 1324

Answers (4)

MrDuk
MrDuk

Reputation: 18322

The easiest way to ensure you're doing this properly is to follow the suggested credential management described in AWS SDK For NodeJs.

npm install aws-sdk

Create a credentials file at ~/.aws/credentials on Mac/Linux or C:\Users\USERNAME.aws\credentials on Windows

[default] 
aws_access_key_id = your_access_key   
aws_secret_access_key = your_secret_key

And then have the AWS object manage the credentials for you:

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

It looks like you might be almost there; instead of storing your keys in your code, store them in the specified credentials file above, and try again.

Upvotes: 0

Ele
Ele

Reputation: 33726

  • Probably you're not passing the API keys.
var AWS_ACCESS_KEY_ID = '';
var AWS_SECRET_ACCESS_KEY = '';

var params = {
  DryRun: false
};

ec2 = new AWS.EC2({
  accessKeyId: AWS_ACCESS_KEY_ID,
  secretAccessKey: AWS_SECRET_ACCESS_KEY,
  apiVersion: '2016-11-15'
});

Recommendation:

  • Put your API keys in separated locations.
  • If this code will be hosted within an EC2, use Service role permissions for EC2.
  • Use profiles.

Upvotes: 1

anilkay
anilkay

Reputation: 144

Is Your Computer or Node.js connect to internet? You control this. first open cmd an use ping, if the ping return packet proper. Control internet of node.js. For control use requestify module for this. use this code:

const requi=require('requestify');
requi.get("https://google.com")
    .then(function(data){
        console.log(data);
    })
    .catch(function (err) {
       console.log(err);
    });

Upvotes: 0

Samit
Samit

Reputation: 615

The credentials seems to be the issue here. Please double check the credentials you are providing for connecting to EC2. The best option would be to generate a new key_id and secret_access_key and use that. I would personally recommend to download the credentials file and pass that in your code rather than putting key_id and secret_access_key here.

Upvotes: 0

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