I want to create a function in AWS Lambda Nodejs that can send some SSH commands to a linux machine. Is it possible?
I know there are some nodejs modules to do this, but AWS Lambda Nodejs doesn't have them, and I don't want to involve any EC2 to this Lambda.
I just want to know how can I, from AWS Lambda function, execute some commands in a linux machine, either by SSH or some other methods that I couldn't think of.
This post is relatively old now but for whoever finds this, AWS made a blog post describing mostly what you're looking for: https://aws.amazon.com/fr/blogs/compute/scheduling-ssh-jobs-using-aws-lambda/
Obviously the AWS blog post describes how to use this for AWS Services but the example still stands using python.
Number of options: You can popen ssh from Python, use a package like https://www.npmjs.com/package/simple-ssh from nodejs, etc.
simple-ssh package allows interacting with the ssh executable on your system via nodejs. It is NOT enough to run ssh on lambda. (Because AWS Lambda machine doesn't have ssh executable installed). Thus this as accepted answer is a bit misleading as it doesn't solve core OPs problemCan confirm this is working on lambda with Alexa and simple-ssh. Couple things of note: ssh.on("close" is required because otherwise the lambda function will shut down before the SSH command is finished working. (Lambda shuts down on alexa.execute call.)
This is one of the top Google results for "ssh lambda aws" so I'm posting this here in hopes of saving some time for others that need to do this.
Working example: https://github.com/PockyBum522/alexa_nodejs_send_ssh_commands_lambda
var SSH = require('simple-ssh');
var Alexa = require("alexa-sdk");
var ssh = new SSH({
host: 'yourserver.com',
user: 'username',
key: `-----BEGIN RSA PRIVATE KEY-----
MIIEpAIBAAKCAQEApQtRxugrDMU8YNBy2j2Lyk6yAxMSKaiusrNUamXKLxFvdlZ1
6HCN+jjaE7q8OYFEmq9l2B5U8GCYMFldXWBxIv7fvRWyi1ZTw3olaZ8DmGYwPKLM
TOQ3MOm/zcJZbiTY1/cx2CW6NupPX78O42hLKM2iJwp6epgxC5t2Vw==
-----END RSA PRIVATE KEY-----`
});
exports.handler = function(event, context, callback) {
var alexa = Alexa.handler(event, context);
alexa.registerHandlers(handlers);
ssh.on("close", function () {alexa.execute()});
ssh
.exec('nohup /home/username/script.sh > /dev/null 2>&1 &', { // Nohup runs script in BG, > /dev/null redirects output. & also runs in BG. Trying to keep things fast to make alexa response time good.
out: console.log.bind(console)
})
.exec('exit', { // Also for trying to keep things fast.
out: console.log.bind(console)
}).start();
};
var handlers = {
'LaunchRequest': function(){
this.emit(':tell', 'Now opening the garage door.');
}
};
