Gabitronics

A Brief Introduction to Fabric

Fabric is a deployment management framework written in Python which makes remotely managing multiple servers incredibly easy. If you've ever had to issue a change to a group servers, this should look pretty familiar:

for s in $(cat servers.txt); do ssh $s service httpd graceful; done

Fabric improves on this process by providing a suite of functions to run commands on the servers, as well as a number of other features which just aren't possible in a simple for loop. 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.

Gabitronics

Fabric Cheatsheet

Cookbook

The fab command

Change host per task

Gabitronics

from fabric.colors import green, red
from fabric.contrib.files import exists
from fabric.api import env, cd, run, sudo
from fabric.contrib.project import rsync_project

app_dir = '/apps/smsl'
git_repo = 'git@bitbucket.org:teamictlife/smsleopard.git'
env.use_ssh_config = True
user = 'focus'

Gabitronics

import os
from time import time
from fabric.api import sudo, run, task, env, cd, get, local
from fabric.context_managers import shell_env

env.hosts = ['yourhost']
env.user = 'yoursshuser'
env.password = 'yoursshpassword'
# env.key_filename = '~/yourkey.pem'

Gabitronics

An Ansible summary

Jon Warbrick, July 2014, V3.2 (for Ansible 1.7)

Configuration file

intro_configuration.html

First one found from of

Gabitronics

Timewarrior Basic Cheatsheet

http://taskwarrior.org/docs/timewarrior/tutorial.html

Last update: 2016-11-15

Timewarrior Installation on Arch Linux

$ sudo pacman -S timew

Taskwarrior Hook Installation

Gabitronics

Short description of some important CL commands

Content

1. Important special keys
2. CL Commands
   1. Commands
   2. When you need more room on the command line
   3. Object (file) types
   4. Values

Gabitronics

Guides:

• https://stephentanner.com/restoring-grub-for-an-encrypted-lvm.html
• https://askubuntu.com/questions/719409/how-to-reinstall-grub-from-a-liveusb-if-the-partition-is-encrypted-and-there-i
• https://help.ubuntu.com/community/Grub2/Installing

cryptsetup luksOpen /dev/sdb3 home_sdb3
vgchange -ay
lvscan