virtualization and cloud - a "pro" infrastructure for everyone
DESCRIPTION
A talk about Cloud Computing, to understand what is Cloud Computing and what are the benefits of building applications on top of Amazon AWS.TRANSCRIPT
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Virtualization and Cloud: a “PRO”
infrastructure for everyone.
Luca Bonmassar, BetterSoftware 2011
Monday, 27 June 2011
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BetterSoftware ‘11
Luca Bonmassar
Passionate about Tech
Favorite topics: Cloud, Virtualization, NoSQL
Enterprise / startup experience
Monday, 27 June 2011
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BetterSoftware ‘11
Cloud - Agenda
Avoiding “the fog”
Cloud what?
Cloud why?
Cloud when?
Building on AWS Cloud
Monday, 27 June 2011
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BetterSoftware ‘11
1. Cloud what?
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It’s not about the product
You have the biggest idea ever: a brand new pizza type!
You have spent time designing, implementing and testing your new pizza™
But now you need a place to sell it
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BetterSoftware ‘11
Build your own pizza place!
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BetterSoftware ‘11
Build your own pizza place
Upfront decisions:
How big?
How many tables?
Where?
Time and money if you change your mind
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What about renting?
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Renting in Cloud mall
In the Cloud mall you can rent by square meters
If:
you need more, you get more
you need less, you give it back
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2. Cloud why?
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Move from Capex to Opex
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eCommerce Website
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Over provisioning
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Under provisioning
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AutoScale(TM)
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From Capex to Opex
No need for approval to buy any new computational resources
“Pay as you go” model
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Ready to succeed?
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“Breakup notifier” - launch
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The TechCrunch effect
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3. Cloud when?
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Enterprise
Circumvent IT department
Pay as you go - no budget approval
No provisioning
Cons: sensitive data?
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Startup / Pet project
Defeat TechCrunch effect
No money (but glory)
No operations team
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Building on AWS
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Amazon Web Services
“The most mature, flexible and complete infrastructure platform” -- Jeff Bezos (CEO, Amazon.com)
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BetterSoftware ‘11Storage
Frontend
Messaging
Backend BackendAutoScale
Monitoring
AWS WebApp Architecture
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Network Components
Load Balancers
Firewalls
Elastic IPs
Route 53
Virtual Private Cloud
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Computing: EC2
Virtual Machines
Different memory/cpu resources
Run public or custom OS images
When turned off, changes are lost (volatile)
Pay what you use (time and bandwidth)
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Bonus Track: EC2 + LXC
Run Virtual Machines into Virtual Machines
LXC (Linux Containers)
UML (UserMode Linux)
FreeBSD jails
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Storage: EBS
Network storage volumes
Customizable size
Data stored in snapshots
Data is automatically replicated
Pay per allocated GB
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Storage: S3
Key/value object storage
Rest API to manipulate the repository (web access to objects)
S3FS
Slower, more reliable
Pay per allocated GB and usage (data transfer)
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Storage: RDS
Relational Database Service
A managed MySQL/Oracle instance in the Cloud
Different cpu/mem resources
Pay what you use (bandwidth and time)
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Storage: SimpleDB
The NoSQL alternative
A managed NoSQL instance in the Cloud
Custom API to manipulate the data set
Pay what you use (bandwidth and time)
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Messaging: SNS
Simple Notification Service
A notification infrastructure in the Cloud
Publish/Subscribe protocol
Http/Mail/SQS notifications
Pay what you use (requests, notification and bandwidth)
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Messaging: SQS
Simple Queue Service
A message queue infrastructure in the Cloud
Communications between EC2 instances
Enable the “worker queue” paradigm
Pay what you use (bandwidth and API requests)
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Monitoring: CloudWatchMonitor AWS resources
EC2 instances
EBS volumes
RDS databases
Load Balancers
...
Set alarms
View graphs and statistics
Pay per number of alarms and metrics monitored
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Monitoring: AutoScale
Monitor instances and take scalability decisions
Scale out EC2 instances when demand increases
Shed unneeded EC2 instances when demand subsides (save $$$)
Enable “elasticity”
Free of charge
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BetterSoftware ‘11Storage
Frontend
Messaging
Backend BackendAutoScale
Monitoring
Putting it all together
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Failures
Cloud is not immune to failures
Cloud Apps should be designed with failure in mind (distributed components app)
Take advantages of:
Availability Zones
Multiple Regions
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One more thing: API!All services are manageable through a Web Console
But all AWS services have exposed APIs
You can (for example):
Allocate, start, control, terminate EC2 instances
Allocate/attach/deallocate EBS partitions
Allocate/start/stop databases
Create/Read/Update/Destroy S3 objects
Change IPs
Monitor components
...
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Predicting costs
Amazon Simple Monthly Calculator (google it!)
Given some assumptions, how much will I pay?
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Keep costs low
Use a mix of reserved instances vs. On-Demand instances
Undersize your storage and processing power
Monitor process activities (e.g. you pay for the bandwidth)
Use AutoScale
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Conclusions
Cloud is a very good place to host your application and data
Very flexible, leaves to others the pain of operations
Easy to migrate to Cloud in steps (subscribing one service at a time)
Your application is ready to scale with your business
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Thanks! Questions?
linkedin.com/in/lucabonmassar
twitter.com/lucabonmassar
Monday, 27 June 2011