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@ghalimi
ghalimi / PV.js
Created January 25, 2013 23:27
PV Function
// Copyright (c) 2012 Sutoiku, Inc. (MIT License)
function PV(rate, periods, payment, future, type) {
// Initialize type
var type = (typeof type === 'undefined') ? 0 : type;
// Evaluate rate and periods (TODO: replace with secure expression evaluator)
rate = eval(rate);
periods = eval(periods);
@obolton
obolton / elb-nodejs-ws.md
Last active November 12, 2023 11:49
Configuring an AWS Elastic Load Balancer for a Node.js application using WebSockets on EC2

AWS ELB with Node.js and WebSockets

This assumes that:

  • You are using Nginx.
  • You want to accept incoming connections on port 80.
  • Your Node.js app is listening on port 3000.
  • You want to be able to connect to your Node.js instance directly as well as via the load balancer.

####1. Create load balancer

@zhiguangwang
zhiguangwang / websocket-elb.md
Last active April 23, 2019 20:23
Configure websockets behind an AWS ELB.
@joshgarnett
joshgarnett / lets-encrypt-route53.rb
Last active March 17, 2021 09:01
Ruby script to use as a hook for the letsencrypt.sh client
#!/usr/bin/env ruby
require 'aws-sdk'
#
# This script requires you to have the following environment variables set:
# AWS_REGION="us-west-2"
# AWS_ACCESS_KEY_ID="<YOUR_KEY>"
# AWS_SECRET_ACCESS_KEY="<YOUR_SECRET_KEY>"
#
@HyperBrain
HyperBrain / package-plugin-lifecycle.md
Last active November 24, 2023 04:56
Serverless - Package/Deploy plugin lifecycle changes

Overview

Currently the Serverless framework only offers lifecycle events that are bound to commands and also are very coarse. Each core plugin only exposes the events that are defined by the framework. This is suboptimal for plugin authors as they want to hook special events within the deployment process.

The PR adds fine grained lifecycles to the AWS deployment process (see below for the current implementation process) and makes the package/deploy plugin implementation non-breaking.

@HyperBrain
HyperBrain / lifecycle-cheat-sheet.md
Last active June 7, 2024 05:17
Serverless Lifecycle Cheat Sheet

Serverless plugin author's cheat sheet

This cheat sheet provides a detailed overview of the exposed lifecycle events and available commands (and entrypoints) of the Serverless framework, that can be hooked by plugins (internal and external ones). The document is structured by the commands invoked by the user.

Lifecycle events are shown as the globally available outer events (all providers) and sub lifecycle events that are provider specific in the called order. Currently only the AWS provider is shown. If you have information about the other provider,