Rory Bramwell rbramwell

Docker Workshop

This workshop is intended for people who are familiar with Linux and running services like a web server, database, etc.

To make it and easier for everyone, and save us some time please prepare a couple of simple things beforehand. Coming unprepared can cause delays and you might miss the whole workshop because the internet is not fast enough for everyone to download the requirements.

Bring your Laptop - this is a workshop!
It does not matter which operating system you have installed.

Working with ansible-vault

I've been using a lot of Ansible lately and while almost everything has been great, finding a clean way to implement ansible-vault wasn't immediately apparent.

What I decided on was the following: put your secret information into a vars file, reference that vars file from your task, and encrypt the whole vars file using ansible-vault encrypt.

Let's use an example: You're writing an Ansible role and want to encrypt the spoiler for the movie Aliens.

	task prefixNewMigrations {

	fileTree(dir: 'dev/src/db/listhub').exclude({ isFilePrefixed(it.file) }).each { file ->
	doLast {

	def timestamp = new Date().format('yyyyMMddHHmmssSSS', TimeZone.getTimeZone('GMT'))

	println "Renaming $file.name to ${timestamp}__$file.name"

	file.renameTo("$file.parentFile.absolutePath$file.separator${timestamp}__$file.name")

	DELIMITER $$

	DROP PROCEDURE IF EXISTS add_email_address_column_to_customers_table $$

	-- Create the stored procedure to perform the migration
	CREATE PROCEDURE add_email_address_column_to_customers_table()

	BEGIN

	-- Add the email_address column to the customers table, if it doesn't already exist

	#!/bin/bash

	# simple function to check http response code before downloading a remote file
	# example usage:
	# if `validate_url $url >/dev/null`; then dosomething; else echo "does not exist"; fi


	function validate_url(){
	if [[ `wget -S --spider $1 2>&1 \| grep 'HTTP/1.1 200 OK'` ]]; then echo "true"; fi
	}

	class Node:
	def __init__(self, val):
	self.val = val
	self.leftChild = None
	self.rightChild = None

	def get(self):
	return self.val

	def set(self, val):

	#!/usr/bin/python
	#
	# Usage: packer-config my-template.yaml \| packer build -
	#
	# Constructs a Packer JSON configuration file from the specified YAML
	# template file and writes it to STDOUT.
	#
	# The YAML template format adds some flexibility and readability by
	# adding comments and an !include directive, allowing for the
	# following template syntax:

	# Install Ruby

	wget http://ftp.ruby-lang.org/pub/ruby/2.1/ruby-2.1.1.tar.gz
	tar xvzf ruby-2.1.1.tar.gz
	cd ruby-2.1.1
	./configure --prefix=/usr
	make
	make install

	# remove "ruby-2.1.1" folder in /root

	http://d.stavrovski.net/blog/post/how-to-install-and-setup-oracle-java-jdk-in-centos-6

	# rpm
	wget --no-cookies \
	--no-check-certificate \
	--header "Cookie: oraclelicense=accept-securebackup-cookie" \
	"http://download.oracle.com/otn-pub/java/jdk/7u55-b13/jdk-7u55-linux-x64.rpm" \
	-O jdk-7-linux-x64.rpm

	# ubuntu

	site :opscode

	cookbook 'nginx', '~> 2.4.4'