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Amazon EC2 to Amazon VPC: A case study

Eric Schultze, AWS

Matthew Barlocker, Lucid Software Inc

November 14, 2013

Where we’ve been

• 2009 – AWS introduces Amazon VPC

• 2010 – AWS Management Console, second region

• 2011 – Internet connectivity, global expansion

• 2012 – Additional Amazon services in VPC, multiple IPs

• 2013 – EC2-VPC becomes the default network platform

Where we’ve been 2009

• Amazon VPC is announced

2010

• AWS Management Console

• Support for Auto Scaling

• User specified IPs per instance

• EU-West-1 region

• Amazon EBS backed instances

• CC instances in VPC

2011

• Internet Gateway

• Security groups

• Network ACLs

• Route tables

• AWS Management Console

• Instance metadata

• Elastic IPs

• Dedicated instances

• Spot Instances in VPC

• Elastic Load Balancing in VPC

• Amazon Elastic MapReduce in VPC

• Expansion to all regions

• Multiple Availability Zones

• Multiple VPCs per account

• Multiple VPN connections per VPC

• Elastic network interfaces

2012

• t1.micro

• Multiple IPs per interface

• AWS CloudFormation for VPC

• AWS Elastic Beanstalk in VPC

• Amazon RDS in VPC

• Amazon ElastiCache in VPC

2013

• VPC becomes the default platform

for all new AWS accounts

• DNS Hostnames in VPC

• AWS OpsWorks for VPC

• Amazon Redshift in VPC

• Ephemeral Public IPs

2014

• VPC Migration

About Me

• Chief Architect at Lucid

Software Inc

• Bachelors degree from BYU in

Computer Science

• I love to

• play board games

• go 4-wheeling

• wrestle my sons

• fly airplanes

• Follow me on

nineofclouds.blogspot.com

Lucid Software

• Online Diagram Software

• Online Print & Digital Publishing

• Large Documents

• Real-time Collaboration

• All Changes Tracked

• Vector Graphics

• High Quality Images

Tech at Lucid

• Google Closure

• Javascript

• PHP

• Sharded MongoDB

• Sharded MySQL

• NodeJS

• SOA

• Scala

• Play!

• Chef

• Zabbix, Graphite

• AWS

Lucid on AWS • Amazon Elastic Compute

Cloud

• Amazon Virtual Private Cloud

• Amazon Elastic Block Store

• Auto Scaling

• Elastic Load Balancing

• Simple Storage Service

• Amazon CloudFront

• AWS Import/Export

• Amazon Relational Database Service

• Amazon Route 53

• Amazon Simple Notification Service

• Amazon Simple Email Service

• Availability Zones

• Regions

Why Lucid Chose Amazon VPC

• Pricing

• Interoperability

• Enhanced features

• Security

Other Benefits

• Elastic Load Balancing security groups

• Network ACLs

• Elastic IP associations

• VPN support

• Reserved Instance transfers

Drawbacks

• NAT cost and maintenance

• Setup time

• New terminology

• Private subnet accessibility

• Internal DNS names defaults

Things You Should Know

• EIPs or Public IPs in public subnets

• NAT • Not special

• Public subnet

• Subnets • Route tables

• Network ACLs

• DHCP

Migration Plan

Migration Constraints • Amazon EC2 & Amazon

VPC communication

• NAT traffic

• Not Shared: – Security groups

– Load balancers

– Auto Scaling groups

– Elastic IPs

– EIP limits

• Shared: – Instance limit

– Amazon EBS volumes

– Snapshots

– Instance sizes

– Availability Zones

– Regions

Migration Plan

• Move top layer first

• Move one layer at a time

• Meticulously manage security groups

• Move monitoring/utility servers last

• http://nineofclouds.blogspot.com/search/label/VPC

Starting layout

Move webservers first

Move services next

Move databases last

Top 5 Pain Points

5. Setup & Terminology

• Subnets

• DHCP

• Network ACLs

• Routes

• Internet Gateway

• Unavoidable

4. Security Groups

• Groups not shared

• Amazon EC2 open to

NAT

• Use scripts

• Avoidable using

public subnets

3. Access Private Subnets

• OpenVPN

• High Availability

• SSH tunnels

• Unavoidable

2. MongoDB Migration

• Election algorithm

• Intermediate move to

public subnet

• 15 min downtime

1. NAT Bandwidth

• NAT was t1.micro

• Databases in Amazon EC2

• Applications in Amazon VPC

• Not enough bandwidth through NAT

• Avoidable

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Join the Team!

• Building the next generation of

collaborative web applications

• VC funded

• High growth rate

• Profitable

• Graduates from Harvard, MIT,

Stanford

• Former Google, Amazon,

Microsoft employees

https://www.lucidchart.com/jobs