brodkin

#cloud-config

coreos:
  etcd:
    discovery: https://discovery.etcd.io/stuff
    addr: $private_ipv4:4001
    peer-addr: $private_ipv4:7001
  units:
    - name: fleet-metadata.service
      command: start

skippy

#cloud-config
---
coreos:
  units:
  - name: update-fleet-metadata.service
    command: start
    content: |-
      [Unit]
      Description=Update Fleet metadata tag
      Before=fleet.service

nolanlawson

PouchDB for LevelDOWN authors

Introduction

Who are you? You're the author of a LevelDOWN-compatibile module, such as MemDOWN, FooDOWN, BarDOWN, whatever.

What do you want? A super-sweet module that passes the grueling 1,000+ tests in the PouchDB test suite. This guide will help get you there.

richp10

// This systemd runs iptables-restore on boot:
[Unit]
Description=Packet Filtering Framework
DefaultDependencies=no
After=systemd-sysctl.service
Before=sysinit.target

[Service]
Type=oneshot
ExecStart=/usr/sbin/iptables-restore /opt/docker/scripts/iptables/iptables.rules

jcoglan

var BVT = function(width, depth, init, elems) {
  this._width = width;
  this._depth = depth;
  this._leaf  = depth === 1;

  this._shift  = (this._depth - 1) * Math.round(Math.log(width) / Math.log(2));
  this._himask = this._width - 1;
  this._lomask = Math.pow(2, this._shift) - 1;
  this._elems  = elems;
  

ismell

Production Ready Process Monitoring

1. Install docker-manger.conf and docker-instance.conf in /etc/init

2. Create a containers file in /etc/docker/ with the following format

    name: image cmd
   

   The name must be unique.

3. sudo service docker-manager start

brandonb927

#!/bin/sh

###
# SOME COMMANDS WILL NOT WORK ON macOS (Sierra or newer)
# For Sierra or newer, see https://github.com/mathiasbynens/dotfiles/blob/master/.macos
###

# Alot of these configs have been taken from the various places
# on the web, most from here
# https://github.com/mathiasbynens/dotfiles/blob/5b3c8418ed42d93af2e647dc9d122f25cc034871/.osx

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