Tales From a Heroku User
Here are some things I have learned along the way.
Last Updated: 2013-02-08
Original Audience: Hack Reactor
Ryan Smith ryandotsmith
ryandotsmith
/ lvmrad.sh
Created
January 14, 2023 08:29
Setting up Ubuntu LVM Raid 0 with 4 NVMe M.2 Drives
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| lslbk # find drives to add (eg /dev/nvmeXn1) | |
| pvcreate /dev/nvme1n1 | |
| pvcreate /dev/nvme2n1 | |
| pvcreate /dev/nvme3n1 | |
| pvcreate /dev/nvme4n1 | |
| vgcreate vg1 /dev/nvme1n1 /dev/nvme2n1 /dev/nvme3n1 /dev/nvme4n1 | |
| lvcreate --type=raid0 -l100%FREE -n rd1 vg1 | |
| mkfs.ext4 /dev/vg1/rd1 | |
| mkdir /storage #customize your mount point | |
| echo '/dev/vg1/rd1 /storage ext4 defaults 0 0' >> /etc/fstab |
ryandotsmith
/ namehash.go
Created
September 15, 2022 17:20
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| package ens | |
| import ( | |
| "strings" | |
| "github.com/ethereum/go-ethereum/common" | |
| "github.com/ethereum/go-ethereum/crypto" | |
| ) | |
| func Namehash(name string) common.Hash { |
ryandotsmith
/ main.go
Created
January 15, 2015 01:10
Sending an OP_RETURN Bitcoin Transaction with Go using Chain's Bitcoin API
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| package main | |
| import ( | |
| "bytes" | |
| "encoding/hex" | |
| "encoding/json" | |
| "io/ioutil" | |
| "log" | |
| "net/http" |
ryandotsmith
/ agg.sql
Created
January 23, 2013 05:19
Postgres array concatenation aggregate function.
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| CREATE AGGREGATE array_accum (anyarray) | |
| ( | |
| sfunc = array_cat, | |
| stype = anyarray, | |
| initcond = '{}' | |
| ); |
ryandotsmith
/ op_return.rb
Created
February 9, 2015 19:45
Chain.com OP_RETRURN Transaction - Create Bitcoin OP_RETURN Transactions in Ruby
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| require 'bitcoin' | |
| require 'chain' | |
| Chain.block_chain = 'testnet3' | |
| Bitcoin.network = :testnet3 | |
| include Bitcoin::Builder | |
| key = Bitcoin::Key.from_base58("cVVBKRBMoPLJSSMW7cM3hji7VmXz1zJWX3DypcjPcWpRBMEu2xF7") | |
| builder = Bitcoin::Builder::TxBuilder.new |
ryandotsmith
/ a-backbone-js-demo-app-sinatra-backend.md
Created
January 22, 2012 01:42
Backbone demo app with sinatra backend
View a-backbone-js-demo-app-sinatra-backend.md
A Backbone.js demo app (Sinatra Backend)
Oct 16 2010
Updates
- 04/10/2011 - Updated application.js and application.rb thanks to @rebo's comments
In this article, I will walk through some simple steps to get a [demo app][2] up and running with [Backbone.js][3] and [Sinatra][4] on [Heroku][5].
View event_buffering.md
Event Buffering
Eventually platforms outgrow the single-source-tree model and become distributed systems. A common pattern in these distributed systems is distributed composition via event buffering. Here we motivate and describe this event buffering pattern.
The Problem
View worker-pattern.md
The Worker Pattern
Contents
- Introduction
- Definition
- Examples
- Links
Introduction
View policy.json
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| { | |
| "Version": "2012-10-17", | |
| "Statement": [ | |
| { | |
| "Action": [ | |
| "autoscaling:Describe*", | |
| "cloudformation:DescribeStacks", | |
| "cloudformation:DescribeStackEvents", | |
| "cloudformation:DescribeStackResources", | |
| "cloudformation:GetTemplate", |
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