Malcolm North, Technical Architect

@malcnorth #AWSUGUK #HighAvailability #Cloud

High Availability Enterprise Solutions in AWS

Business Sectors

Energy Supply

Telecoms

TransportationTravel

Charities

High Availability Principles

SPOF: Eliminate single points of failure

Switchover: Reliably switch between failed and active components

Monitor: Rapid and reliable detection of failure conditions

#HighAvailability #Cloud

Business Sectors

Energy Supply

Telecoms

TransportationTravel

Charities

Telecoms

Brief: Provision of Test Platforms for large scale business transformation program.

Goals: Reduced operating costs

Greater agility

20 hours a day operation in UK, Italy, India and Egypt

Automated daily Snapshots

Approach: Cloud formation infrastructure build

Custom monitoring with Stop/Start

Scheduled Snapshots with rotation

Custom Monitoring Tool

Features: Monitoring of operating state through Amazon API.

Grouping of instances into ‘managed groups’

Group scheduling of:

Start/Stop/Reboot

Snapshots

AMIs

Rotation of Snapshots

SNS Alerts and Notifications

Business Sectors

Energy Supply

Telecoms

TransportationTravel

Charities

Transportation

Brief: Migrate all resources from Data Centre to AWS

Goals: Reduced operating costs

Greater agility

Improve response to extraordinary events such as bad weather.

Approach: Cloud formation infrastructure build

Resilient Network

Custom monitoring with API integration

System Overview

Features: Multiple AWS accounts and VPCs.

A complex network with multiple connections from each of the UK Train operators.

Multi-tenancy with multiple environments

4 applications from three different vendors:

Journey Planning

Timetables/Routes

Live Rail Traffic

Website

Multi-VPC Mesh Network

Firewall

Non-Production VPC

Firewall Firewall

Production VPC

Firewall

Firewall

Gateway VPC

Firewall

AZ-a AZ-b AZ-a AZ-b

AZ-a AZ-b

eu-west-1

Custom Monitoring Scripts

Features: Dual Nagios monitors

Monitors monitor each other

Custom Alerts update RouteTables via API

SNS Alerts and Notifications

Business Sectors

Energy Supply

Telecoms

TransportationTravel

Charities

Travel

Brief: Migrate UK website from Scandinavian hosting to AWS.

Goals: Reduced operating costs

Greater agility

Approach: Cloud formation infrastructure build

Elastic Load Balancers

Multi-Zone RDS

Business Sectors

Energy Supply

Telecoms

TransportationTravel

Charities

Charities

Brief: Migrate UK website from on premise data centre.

Goals: Reduced operating costs

Greater agility

Improved availability

Improved performance globally

Approach: Cloud formation infrastructure build

Puppet configuration management

Use ELBs

Multi-Zone RDS

CloudFront CDN

S3 for asset storage

Business Sectors

Energy Supply

Telecoms

TransportationTravel

Charities

Energy Supply

Brief: Migrate Billing System from on premise data centre to AWS

Goals: Reduced operating costs

Greater agility

Improved availability

Increased capacity

Approach: Cloud formation infrastructure build

Migration from Oracle RAC

Route53 DNS name switching

Custom Monitoring and EIP switching

Oracle RMAN backups to S3

Custom Monitoring Scripts

Features: Dual Nagios monitors

Monitors monitor each other

Custom Alerts update RouteTables via API

Custom Alerts update EIPs via API

SNS Alerts and Notifications