Andy Freeland rouge8

This is a copy/paste from an internal wiki on how we should use docker

This guide is to serve as an outline of internal best practices to using Docker. The idea is to give enough information to allow engineers to create containers for new stack components while minimizing the cleanup required to make them production ready.

Concepts

Before we get to the practices, it's important to understand WHY we are doing this. The key concepts we're concerned about with broad Docker usage are provenance, determinism, repeatability and auditability.

Provenance

Provenance refers to knowing WHERE something comes from. Generally with the end use of software, this is easy:

Maven artifacts are pulled from central

Currently, there is an explosion of tools that aim to manage secrets for automated, cloud native infrastructure management. Daniel Somerfield did some work classifying the various approaches, but (as far as I know) no one has made a recent effort to summarize the various tools.

This is an attempt to give a quick overview of what can be found out there. The list is alphabetical. There will be tools that are missing, and some of the facts might be wrong--I welcome your corrections. For the purpose, I can be reached via @maxvt on Twitter, or just leave me a comment here.

There is a companion feature matrix of various tools. Comments are welcome in the same manner.

This document has moved!

It's now here, in The Programmer's Compendium. The content is the same as before, but being part of the compendium means that it's actively maintained.

	from sqlalchemy import event
	from sqlalchemy import DDL


	def _mysql_cidr_overlap(metadata):
	@event.listens_for(metadata, "after_create")
	def _create_mysql_proc(target, connection, **kw):
	if connection.engine.name != 'mysql':
	return

	#!/usr/bin/env bash
	#
	# Fix virtualenv symlinks after upgrading python with Homebrew and then running
	# `cleanup`.
	#
	# After upgrading Python using Homebrew and then running `brew cleanup` one can
	# get this message while trying to run python:
	# dyld: Library not loaded: @executable_path/../.Python
	# Referenced from: /Users/pablo/.venv/my-app/bin/python
	# Reason: image not found

	from click import command, option, Option, UsageError


	class MutuallyExclusiveOption(Option):
	def __init__(self, args, *kwargs):
	self.mutually_exclusive = set(kwargs.pop('mutually_exclusive', []))
	help = kwargs.get('help', '')
	if self.mutually_exclusive:
	ex_str = ', '.join(self.mutually_exclusive)
	kwargs['help'] = help + (

	import os


	def on_starting(server):
	"""
	Attach a set of IDs that can be temporarily re-used.

	Used on reloads when each worker exists twice.
	"""
	server._worker_id_overload = set()

	from click import command, option, Option, UsageError

	class MutuallyExclusiveOption(Option):
	mutex_groups = {}

	def __init__(self, args, *kwargs):
	opts_list = kwargs.pop('mutex_group', "")
	self.mutex_group_key = ','.join(opts_list)
	self.mutex_groups[self.mutex_group_key] = 0
	help = kwargs.get('help', '')

	from __future__ import (absolute_import, division, print_function)
	__metaclass__ = type

	import getpass
	import logging
	import logging.config
	import os
	import socket

	try:

	[
	{
	"name": "WhiteFox Aria"
	},
	[
	{
	"c": "#0084c2"
	},
	"Esc",
	"!\n1",