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Slides from CNI member meeting, San Antonio April 5, 2013
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Using the Amazon Cloud to
host Digital Scholarship
ProjectsEmory University // Robert W. Woodruff Library
Digital Scholarship Commons (DiSC)
Jay Varner, @jaysvarner
Stewart Varner, @stewartvarner
(some relation)
The Digital Scholarship Commons (DiSC)
Collaborative Projects
Fast, experimental, cheap.
• Empower scholars to do the work themselves
• Some home-grown projects
DiSC Projects: Small
Complex projects, considerable time and/or financial commitment.
• Selection Committee
• Project Charter
• Developer Time
DiSC Projects: Bigger
Alternatives
Cost-
effective
Accommodating Stable Flexible
University
Web
Architecture
Y N Y N
University VM Y Y Y N
Library Server Y N Y N
Shared
Hosting
Service
Y N Y N
Virtual Private
Server
Y Y Y N
Elastic Cloud Y Y Y Y
What we are running in AWS
• Production
– 11 WordPress Sites
– 1 Auto publishing script
– 1 Twitter Harvest
• Dev
– Development Sites (WordPress and Django)
• Backups
– All instances and volumes are backed up in
AWS
AWS Terms
AWS How to think about it
Instance Server
EBS Volume Attached Storage
Security Group Firewall Rules
AMI Image
Snapshot Block level copy of data
AWS Terms
AWS How to think about it
Instance Server
EBS Volume Attached Storage
Security Group Firewall Rules
AMI Image
Snapshot Block level copy of data
BUT DON’T THINK THIS WAY
Architecture
• Separate system from software stack
Instance: bare system and service packages
EBS Volume: mounted to instance contains:
• Software Stack/Application files
• Database files
• Configuration files
Pros
• Scalability
• Low admin overhead
• API
• Makes experimentation easy and cheap
Cons
• Learning curve
• Fear
• Outages
• Variable bill
• Domain names/DNS
Questions?
Thanks!
[email protected] // @stewartvarner
[email protected] // @jaysvarner
s3.amazon.aws.com/emorydisc/resources.html
