Dale Einarson deinarson

takeover states

pro quickly sawp from cluster a to cluster b - ie usage schema change or braking change
con DNS ttl lag time to changeover

Populate to replace ; add nodes until the LB starts using them then kill old nodes.

This example is to point out that password-store facilitates

The encryption of files for one or a list of users
The use of git
- once you have initialized git with pass git init everything is automatically tracked in the local git repo
- Once you have added a remote git repo, you are required to manually push when desired
Auto generation of passwords creating a file

	#!/bin/bash

	# This is meant to be use with a modified version of this
	# https://github.com/Azure-Samples/app-service-msi-keyvault-python

	API_KEYNAME=
	API_TOKEN=
	vault_name=
	vault_rg=
	vault_rg_location=

	#!/bin/bash
	# this must exit on any error
	set -e

	initiate_pull_snapshots(){
	ssh ${DEST_HOST} lvcreate --size 10 --snapshot --name ${LOGICAL_VOL}-current ${VOL_NAME}/${LOGICAL_VOL}
	ssh ${DEST_HOST} dd if=/dev/${VOL_NAME}/${LOGICAL_VOL}-current bs=1M \| dd of=/dev/${CLOUD_VOLUME}/${LOGICAL_VOL} bs=1M
	}

	# NB: The disk must have ${CHANGE_SIZE} space free to store all of the changes untill the next snapshot

	#!/bin/bash
	#
	# This script will probably only wirk with fixed size DBs, and prly not be ideal on any
	# DB with compression on :\
	#
	# BUT!
	# Here we take large files and split them in to several and then sync the by the hash
	# This is probabilistically always be quicker than rsync by itself, since it
	# sends everything
	#

	Host proxy
	hostname jumphost.domain.com
	IdentityFile ~/.ssh/key
	StrictHostKeyChecking no
	UserKnownHostsFile /dev/null
	User username
	LogLevel ERROR
	DynamicForward 18080

	#!/usr/bin/env python

	import boto
	import sys
	from parse import *
	import datetime

	ec2 = boto.connect_ec2(debug=0)
	image_meta = ec2.get_all_images(filters={'name': 'amzn-ami-hvm-*gp2'})


	############################################
	# ECS and S3
	############################################

	resource "aws_elb" "s3-registry-elb" {
	name = "s3-registry-elb"
	availability_zones = ["${split(",", var.availability_zones)}"]

	security_groups = ["${aws_security_group.ecs.id}"]