UtahDave

nginx:
  pkg.installed: []
  service.running:
    - require:
      - pkg: nginx

UtahDave

php-fpm:
  pkg.installed: []
  service.running:
    - name:
    - require:
      - pkg: php-fpm

UtahDave

#!/bin/bash

touch /tmp/Recent.xyz

while true
do
    echo "Checking again..."
    wget -q https://apt.dockerproject.org/repo/dists/ubuntu-xenial/main/binary-amd64/Release -O /tmp/Release.xyz
    if test /tmp/Release.xyz -nt Recent.xyz; then
        mplayer /usr/share/sounds/ubuntu/stereo/phone-incoming-call.ogg

UtahDave

aws elasticbeanstalk describe-configuration-settings --application-name foo --environment-name foo-staging | jq '.ConfigurationSettings[0].OptionSettings[] | select(.OptionName=="Notification Topic ARN")'

UtahDave

{% for server, addrs in salt['mine.get']('roles:docker', 'network.ip_addrs', expr_form='grain').items() %}
    {% if '*web1*' in server %}
    server {{ server }} {{ addrs[0] }}:443 check inter 2000 rise 2 fall 5
    {% endif %}
{% endfor %}

UtahDave

#System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

##Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

UtahDave

Build environment (in order):

• Microsoft Windows Server 2008 R2 Standard w/ SP1
• Microsoft Visual Studio 2008 (all features)
• Microsoft Windows SDK for Windows 7 and .NET Framework 4 (all features)
• Python 2.7.11 (all features, skip byte compilation of .py files)
• Run WindowsSdkVer.exe -version:v7.1 as an administrator in order to register the SDK properly with Visual Studio 2008.
• Run pip install -U setuptools as an administrator in order to update the bundled version of setuptools.
• Patch distutils per http://bugs.python.org/issue15797.

Obtaining sources:

UtahDave

The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)

This creates an archive that does the following:

rsync (Everyone seems to like -z, but it is much slower for me)

• a: archive mode - rescursive, preserves owner, preserves permissions, preserves modification times, preserves group, copies symlinks as symlinks, preserves device files.
• H: preserves hard-links
• A: preserves ACLs

UtahDave

<Directory "/www/sitename/folder/">
<IfModule mod_rewrite.c>
    RewriteEngine ON
    RewriteRule ^(.*) http://bucktname.s3.amazonaws.com/folder/$1
</IfModule> 
</Directory>

UtahDave

salt '*' cmd.run 'rm -rm /var/cache/salt/minion/files/base/*'
salt '*' saltutil.sync_all