Celal Baris Ozdemir celalo

By default elastic beanstalk logs are prefixed by the date and the ip. This is may not be desired, either because the date is also in the logs or because the timestamp is included in cloudwatch logs metadata.

We can remove it by adding two hooks (both with the same content):

.platform/hooks/predeploy/10_logs.sh
.platform/confighooks/predeploy/10_logs.sh

Note: You must ensure these are executable before packaing (chmod +x).

Pure ESM package

The package that linked you here is now pure ESM. It cannot be require()'d from CommonJS.

This means you have the following choices:

Use ESM yourself. (preferred)
Use import foo from 'foo' instead of const foo = require('foo') to import the package. You also need to put "type": "module" in your package.json and more. Follow the below guide.
If the package is used in an async context, you could use await import(…) from CommonJS instead of require(…).
Stay on the existing version of the package until you can move to ESM.

This file is a log of everything I've encountered when trying to migrate a Node.js, Elastic Beanstalk application from the Amazon Linux platform to the Amazon Liunx 2 platform. Here's why you should migrate:

LTS support up to 2023 source
The Amazon Linux AMI's end-of-life is December, 2020 source
Amazon Linux 2 has some big package upgrades (GCC, Glibc, etc.)
Elastic Beanstalk also has some upgrades on top of Amazon Linux 2 (e.g. faster deploys)

Challenges

Disabling NPM install

Node.js TLS plain TLS sockets

This guide shows how to set up a bidirectional client/server authentication for plain TLS sockets.

Newer versions of openssl are stricter about certificate purposes. Use extensions accordingly.

Prepare certificates

Generate a Certificate Authority:

	files:
	"/etc/nginx/conf.d/02_proxy.conf":
	mode: "00644"
	owner: root
	group: root
	content: \|
	server_tokens off;
	add_header Content-Security-Policy "script-src 'self'";

	/** Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. */
	"use strict";

	/**
	* The runtime has a single beforeExit function which is stored in the global
	* object with a symbol key.
	* The symbol is not exported.
	* The process.beforeExit listener is setup in index.js along with all other
	* top-level process event listeners.
	*/

	// based on https://gist.github.com/tony-gutierrez/de5b304fd042f6140eb61a31d0ff92d5
	async function isLeader() {
	try {
	// get APIs
	var elasticbeanstalk = new AWS.ElasticBeanstalk();
	var ec2 = new AWS.EC2();
	var metadata = new AWS.MetadataService();
	// get ec2 instance id
	const request = new Promise( (resolve, reject) => { // MetadataService.request has no support for promise, make one ourselves
	metadata.request('/latest/meta-data/instance-id', (err, InstanceId) => {

	files:
	"/etc/cron.hourly/cron.logrotate.elasticbeanstalk.nodejs.conf":
	mode: "000655"
	owner: root
	group: root
	content: \|
	#!/bin/sh
	test -x /usr/sbin/logrotate \|\| exit 0
	/usr/sbin/logrotate /etc/logrotate.elasticbeanstalk.hourly/logrotate.elasticbeanstalk.nodejs.conf
	/sbin/service awslogs restart

	'use strict';

	const aws = require('aws-sdk');
	const s3 = new aws.S3({ apiVersion: '2006-03-01' });

	exports.handler = (event, context, callback) => {

	const key = decodeURIComponent(event.Records[0].s3.object.key);
	const meta = key.split('/');

	# use ImageMagick convert
	# the order is important. the density argument applies to input.pdf and resize and rotate to output.pdf
	convert -density 90 input.pdf -rotate 0.5 -attenuate 0.2 +noise Multiplicative -colorspace Gray output.pdf