UtahDave

#!/bin/bash
curl -sSk http://192.168.11.10:8000 \
      -b ./cookies.txt \
      -H "Accept: application/json" \
      -H "Content-type: application/json" \
      -d '[{
"client": "local_async",
"tgt":"overlord",
"fun":"state.sls",
"kwarg": { "mods": "test.s_test-state1" }

UtahDave

Launch a one-off git server from any local repository.

I [tweeted this already][1] but I thought it could use some expansion:

Enable decentralized git workflow: git config alias.serve "daemon --verbose --export-all --base-path=.git --reuseaddr --strict-paths .git/"

Say you use a git workflow that involves working with a core "official" repository that you pull and push your changes from and into. I'm sure many companies do this, as do many users of git hosting services like Github.

Say that server, or Github, goes down for a bit.

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