Ara4Sh

Monolith

The Monolithic Ball of Mud

• The Ball Of Mud represents the worst case scenario for a Monolith. Also called as Spaghetti Code.
• No clear isolation in the application.
• Complex dependencies where everything depends on every other thing.
• Hard to understand and harder to modify.

Cleaning Up The Ball Of Mud

• To clean up the ball of mud we introduce isolation into the application by dividing the application along clear domain boundaries.
• We introduce packages and libraries that help isolate related pieces of code. They provide a clean and consistent interface.

Ara4Sh

Semantic Versioning

Details:

• SemVer

• APR

Versions are denoted using a standard triplet of integers: MAJOR.MINOR.PATCH. The basic intent is that MAJOR versions are incompatible, large-scale upgrades of the API. MINOR versions retain source and binary compatibility with older minor versions, and changes in the PATCH level are perfectly compatible, forwards and backwards.

Ara4Sh

Pillow

(64, 64)
        0.217446804047 total time
        217446.804047 ns / op
(128, 128)
        0.085732460022 total time
 85732.460022 ns / op

Ara4Sh

#! /bin/sh -u
networksetup -listallnetworkservices | awk 'NR>1' | while read SERVICE ; do
  if networksetup -getautoproxyurl "$SERVICE" | grep '^Enabled: Yes' >/dev/null; then
    networksetup -setautoproxystate "$SERVICE" off
    sleep 2
    networksetup -setautoproxystate "$SERVICE" on
    echo "$SERVICE" bounced.
  fi
done

Ara4Sh

function FindProxyForURL(url, host) {

    if (shExpMatch(host, "slack.com") ||
        shExpMatch(host, "*.slack.com") ||
        shExpMatch(host, "*.slack-msgs.com") ||
        shExpMatch(host, "*.slack-files.com") ||
        shExpMatch(host, "*.slack-imgs.com") ||
        shExpMatch(host, "*.slack-edge.com") ||
        shExpMatch(host, "*.slack-core.com") ||
        shExpMatch(host, "*.slack-redir.net")) {

Ara4Sh

#!/bin/bash
for cpu in $(cat /sys/devices/system/cpu/cpu*/topology/thread_siblings_list)
do
        echo 0 > /sys/devices/system/cpu/cpu${cpu}/online
done

Ara4Sh

#!/bin/bash
# Take one argument from the commandline: VM name
if ! [ $# -eq 1 ]; then
    echo "Usage: $0 <node-name>"
    exit 1
fi

# Check if domain already exists
virsh dominfo $1 > /dev/null 2>&1
if [ "$?" -eq 0 ]; then

Ara4Sh

#!/usr/bin/env bash
#
# Very simple bash client to send metrics to a statsd server
# Example with gauge:  ./statsd-client.sh 'my_metric:100|g'
#
# Alexander Fortin <alexander.fortin@gmail.com>
#
host="${STATSD_HOST:-127.0.0.1}"
port="${STATSD_PORT:-8125}"

Ara4Sh

#!/bin/bash

URL=$1
PLAIN="$(curl $URL --silent --write-out "%{size_download}\n" --output /dev/null)"
GZIPPED="$(curl $URL --silent -H "Accept-Encoding: gzip,deflate" --write-out "%{size_download}\n" --output /dev/null)"

if test $PLAIN -gt $GZIPPED
then 
  echo "supported"
else

Ara4Sh

# example location parts of nginx.conf
# add your own AWS keys, server lines etc, and set your aws domains, paths

http {
# you will need the luacrypto in the cpath, download from http://luacrypto.luaforge.net/
lua_package_cpath "/home/justin/lua/luacrypto-0.2.0/src/l?.so.0.2.0;;";

server {
  listen       80;