Henry McBride mcbrihk

A Brief Introduction to Fabric

Fabric is a deployment management framework written in Python which makes remotely managing multiple servers incredibly easy. It is very similar to MakeFiles and Ant Files. While a working knowledge of Python is helpful when using Fabric, it certainly isn't necessary. This tutorial will cover the steps necessary to get started with the framework and introduce how it can be used to improve on administering groups of servers.

Installing Fabric

One of the best things about Fabric is that the systems which you are remotely administering require nothing beyond the standard OpenSSH server. The master server which you are running Fabric from will, however, need a few things installed before you can get started. Let's get started.

Requirements

Python 2.5+ with the development headers

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Introduction

jenkins-stats.py is used to generate statics for jenkins server, so far it display the plugin's usage in each job, see related stackoverflow question:how can I know whether the plugin is used by any jobs in jenkins

Installation

python-requests module is required

	#!/bin/bash
	#

	# Copies certain kinds of known files and directories from a given Jenkins master directory
	# into a git repo, removing any old ones, adds 'em, commits 'em, pushes 'em.
	#
	set -ex

	if [ $# -ne 2 ]; then
	echo usage: $0 root_dir jenkins_master

	Download the latest snapshot from nexus using wget
	From Maven 3, support for uniqueVersion is disabled and when you distribute your snapshots by publishing them on nexus you end up with snapshot names ending with timestamps. Suddenly your QA or Integration server scripts start failing if you are getting war file from nexus repository as there is no unique name now.

	To get the latest version of snapshot you can use a service available from Nexus as

	wget -O my-services.war http://nexus.myorg.net/nexus/service/local/artifact/maven/redirect?r=snapshots\&g=my.company.product.services\&a=my-services\&v=1.0-SNAPSHOT\&p=war

	Where
	r is the id of the repository
	g is the group id

	#!/usr/bin/env python
	'''
	This script converts the output of Ansible's dynamic host list ec2.py to a flatly formmated static inventory file.
	Before running this script run `python ./ec2.py --refresh-cache > ansible-dynamic-host-list.json`
	See: http://docs.ansible.com/ansible/ec2_module.html
	'''

	import json
	from pprint import pprint
	import operator