Node 6 EOL + upgrade lambda functions to node v8

Rack (Version 2)
1

Hi there,

on April 2019 AWS will end support for Node 6.x for lambda functions, as they notified on the console https://nodejs.org/en/blog/release/v6.9.0/

We have two timerLauncher lambda functions for gen2 apps and one cronFunction for a gen1 app. The convox rack is at version 20190304140515.

What’s the best practice here? Is there going to be a convox rack release to which we can upgrade to or are we supposed to upgrade lambdas on AWS console manually?

2

Also interested to know how we should upgrade this, or will it be automatic?

3

Hi @matt. Updating your rack to [20190327110531] Lambda Node.js Update, Local Rack Updates should solve this issue.

4

Confirmed that after rack update and a new application promote the lambda is also updated

5

Hi @ali, I’ve updated my rack to the latest version, and have deployed a new release for my application. That updated the Node version for the timers, but I still have a Lambda function running on Node 6: production-console-******-Forwarder-******.

It connects to SNS and CloudWatch Logs, and has the following code:

var https = require("https");
var url = require("url");
exports.handler = (event, context, cb) => {
  var req = https.request(Object.assign(url.parse(process.env.WEBHOOK_URL), { method:"POST" }), function(res) {;
    cb(null);
  });
  req.write(event.Records[0].Sns.Message);
  req.end();
}

When I run convox rack resources, I see these webhooks:

console-************  webhook   running
convox-events         webhook   running

So I think it might be one of these.

How could I update this function to use Node 8?

6

I just figured out how to manually update it. (The following steps use abcdef as an example.)

I ran: convox rack resources info console-abcdef, which gave me this output:

Name     console-abcdef
Type     webhook
Status   running
Options  Url=https://console.convox.com/racks/********-abcdef/events
URL      https://console.convox.com/racks/********-abcdef/events

Then I ran:

convox rack resources update console-abcdef Url=https://console.convox.com/racks/********-abcdef/events

(Using the same Url from the output.)

This forced Convox to update the webhook Lambda function (with the same URL), but it deleted the old one and created a new one running on Node.js 8.10.

7

I guess that’s a rack resource of webhooks type. We never had those, therefore doing a convox releases promote <latest release ID> for an app was all we needed to update all Lambdas to Node.js 8.10.

I am glad you found a solution @nathan.f77! :fist_right::fist_left: