GuillaumeDesforges

# This file `obj.txt` is a hexdump with comments to manually build an ELF file.
# Lines starting with '#' are comments.
# The rest is read as per `xxd -r -p` (see `man xxd`)
# You can build the binary executable `obj.elf` using the command:
# ```bash
# <obj.txt grep -v '^#' | xxd -r -p >obj.elf
# ```
# You can then use chmod to make `obj.elf` executable.

# ==================

maxivak

Directories on host machine:

• /data/certbot/letsencrypt

• /data/certbot/www

• Nginx server in docker container

docker run -d --name nginx \

swalkinshaw

Moved to Shopify/graphql-design-tutorial

terabyte

Prologue

I wrote this answer on stackexchange, here: https://stackoverflow.com/posts/12597919/

It was wrongly deleted for containing "proprietary information" years later. I think that's bullshit so I am posting it here. Come at me.

The Question

Amazon is a SOA system with 100s of services (or so says Amazon Chief Technology Officer Werner Vogels). How do they handle build and release?

NigelEarle

Migrations & Seeding

What are migrations??

Migrations are a way to make database changes or updates, like creating or dropping tables, as well as updating a table with new columns with constraints via generated scripts. We can build these scripts via the command line using knex command line tool.

To learn more about migrations, check out this article on the different types of database migrations!

Creating/Dropping Tables

danielearwicker

import { autorun } from "mobx";

import { createStore, Action, Reducer } from "./remox"

interface Person { firstName: string; lastName: string; }

interface SetFirstName { type: "SET_FIRST_NAME", newFirstName: string; }
interface SetLastName { type: "SET_LAST_NAME", newLastName: string; }

function personReducer(state:Person, action: SetFirstName | SetLastName) {

justinpawela

# This file is:  ~/.ssh/config

# You may have other (non-CodeCommit) SSH credentials stored in this
# config file – in addition to the CodeCommit settings shown below.

# NOTE: Make sure to run [ chmod 600 ~/.ssh/config ] after creating this file!

# Credentials for Account1
Host awscc-account1                                 # 'awscc-account1' is a name you pick
  Hostname git-codecommit.us-east-1.amazonaws.com   # This points to CodeCommit in the 'US East' region

rosszurowski

/**
 * A linear interpolator for hexadecimal colors
 * @param {String} a
 * @param {String} b
 * @param {Number} amount
 * @example
 * // returns #7F7F7F
 * lerpColor('#000000', '#ffffff', 0.5)
 * @returns {String}
 */

FiloSottile

; /usr/local/bin/nasm -f macho 32.asm && ld -macosx_version_min 10.7.0 -o 32 32.o && ./32

global start

section .text
start:
    push    dword msg.len
    push    dword msg
    push    dword 1
    mov     eax, 4

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD