JCallicoat

/* Leap second stress test
 *              by: John Stultz (john.stultz@linaro.org)
 *              (C) Copyright IBM 2012
 *              (C) Copyright 2013, 2015 Linaro Limited
 *              Licensed under the GPLv2
 *
 *  This test signals the kernel to insert a leap second
 *  every day at midnight GMT. This allows for stessing the
 *  kernel's leap-second behavior, as well as how well applications
 *  handle the leap-second discontinuity.

JCallicoat

#!/bin/bash
CAT="/bin/cat"
HOSTNAME=$(/bin/hostname)
RABBITMQ_HOME="/var/lib/rabbitmq"
RABBITMQ_COOKIE_PATH="$RABBITMQ_HOME/.erlang.cookie"
RABBITMQ_COOKIE=$($CAT $RABBITMQ_COOKIE_PATH) || exit 1
ERLANG_ROOT="/usr/lib/erlang"
ERL_CALL="$ERLANG_ROOT/lib/erl_interface-3.7.15/bin/erl_call"
PROCS=$($ERL_CALL -c $RABBITMQ_COOKIE  -sname rabbit@$HOSTNAME -a 'erlang system_info [process_count]')
echo "procs.$HOSTNAME $PROCS"

JCallicoat

--- /usr/share/pyshared/quantum/service.py.orig	2013-11-25 17:49:53.121840504 -0500
+++ /usr/share/pyshared/quantum/service.py	2013-11-25 18:08:03.298024098 -0500
@@ -37,6 +37,9 @@
     cfg.IntOpt('periodic_interval',
                default=40,
                help=_('Seconds between running periodic tasks')),
+    cfg.IntOpt('api_workers',
+               default=0,
+               help=_('Number of separate worker processes for service')),
     cfg.IntOpt('periodic_fuzzy_delay',

JCallicoat

(use '[clojure.string :only [split, join]])
(use '[clojure.set :only [difference]])

(def winners
  (let [w "washington adams jefferson jefferson madison madison monroe 
monroe adams jackson jackson vanburen harrison polk taylor pierce buchanan 
lincoln lincoln grant grant hayes garfield cleveland harrison cleveland mckinley
 mckinley roosevelt taft wilson wilson harding coolidge hoover roosevelt 
roosevelt roosevelt roosevelt truman eisenhower eisenhower kennedy johnson nixon 
nixon carter reagan reagan bush clinton clinton bush bush obama obama"]

JCallicoat

#!/usr/bin/env ruby

class ArrayWithHashes

    def initialize(hashes)
       @hashes = hashes 
    end

    def find_by(selector)    
        @hashes.select do |h|

JCallicoat

#!/usr/bin/env ruby

class ArrayWithHashes

    def initialize(hashes)
       @hashes = hashes 
    end

    def find_by(selector)    
        hashes = []

JCallicoat

#!/bin/bash

# REFRIED BEANS
# 'soft' rekick a rcps environment


echo "PURGING THE BEANS"

apt-get -y purge `dpkg -l | awk '/mysql/ {print $2}'`
apt-get -y purge `dpkg -l | awk '/keystone/ {print $2}'`

JCallicoat

Images Talk

- Who are we?

Rackspace Private Cloud. We install and operate Openstack clusters, both locally in our datacenters, and remotely in customer datacenters.

<pending>Reference Alamo v3?</pending>


- What are we talking about?

JCallicoat

package main

import "net/http"
import "fmt"

func hello(w http.ResponseWriter, r *http.Request) {
	contentType := w.Header().Get("Content-Type")
	if contentType == "application/json" {
		fmt.Fprintln(w, `{"Hello": "JSON"}`)
	} else {

JCallicoat

from sh import ls
from fabric.api import run, env
env.hosts = ['localhost', 'rightfootin.info']
def test():
    print(ls('/')) # runs on every item in env.hosts