Jeff Schroeder SEJeff

Docker Cheat Sheet

Why

Why Should I Care (For Developers)

I don't care, I just want a dev environment

The mustache gotcha

When using “bound” objects in an .aurora file it is an absolute that you do not have spaces in the “mustaches”.

Examples:

Bad: {{ profile.my_var }}
Good: {{profile.my_var}}

Mesos Slave Constraints

When scheduling a task on aurora with Production=True, the 0.7-incubating scheduler will set a default constraint preventing more than one instance of the task on the same rack.

Original Link

Imagine that you cloned an open source project to contribute something. You implemented a bugfix through a series of atomic commits on a private branch. Just when you’re about to create a Pull Request to submit your changes, you discover in the contributor’s guide that you’re supposed to prefix each commit with the bug tracking number.

Rewriting the commit message of the last commit is easy:

git commit --amend

	def normalize_line(line):
	return [piece.strip() for piece in line.split("\|")[1:-1]]

	def is_valid_line(line):
	return "\|" in line

	def load(text):
	lines = map(normalize_line,
	filter(is_valid_line,
	text.strip().splitlines()))

	#!/usr/bin/env python
	'''
	Drop a user into a Python shell preconfigured with a Salt environment
	'''
	import atexit
	import atexit
	import os
	import pprint
	import readline
	import rlcompleter

	Choose a ticket class: <select id="tickets"></select>

	<p id="ticketOutput"></p>

	<script id="ticketTemplate" type="text/x-jquery-tmpl">
	{{if chosenTicket}}
	You have chosen <b>${ chosenTicket().name }</b>
	($${ chosenTicket().price })
	<button data-bind="click: resetTicket">Clear</button>
	{{/if}}

	[MASTER]
	profile=no
	persistent=yes
	ignore=migrations
	cache-size=500

	[BASIC]
	# Regular expression which should only match correct module names
	module-rgx=([a-z][a-z0-9_]*)$