This document discusses the evolution of server technologies from mainframes to modern containers and Platform as a Service (PaaS). It outlines the abstraction layers from bare metal infrastructure to PaaS. Key technologies at each layer like virtual machines, containers, Docker, Kubernetes, and PaaS platforms are presented. The advantages and disadvantages of different approaches are compared. Emerging trends toward ephemeral runtimes, portability across clouds, and hybrid setups are also noted.

1. Server evolution:
From mainframes to
containers and PaaS
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2. • Entrepreneur
• Geek
• VP Biz Dev @ CloudSigma
• Email:
viktor@cloudsigma.com
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• LinkedIn:
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Aboutme
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3. • Public IaaS
• PoPs in Europe and North America
• Support (almost) all operating systems
• Virtual data center
• Trusted by CERN, ESA and many more
AboutCloudSigma
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4. Overview
• XaaS overview
• Abstraction layers
• Technology overview
• Orchestration layers
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5. PaaS
SaaS
IaaS
Bare metal
Abstraction
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6. Mainframes
Time
Bare metal
(x86)
Virtual
machines
Containers
IaaS layer PaaS layer( )
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7. Bare metal
(x86)
Pros
• Familiar
• Performance
• Data management
Cons
• Static hardware
• Slow and expensive provisioning
• Low utilization per host
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8. Virtual
machine
overview
Pros
• Flexible server sizes
• Higher host utilization
• Simple migration path
• Scale with demand2
Cons
• “Noisy neighbor” issue
• Overhead on host1
• Management1
• Data control2
1 If self-hosted 2 If cloud based @vpetersson

9. Virtual
machine
technologies
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10. Virtual
machine
management
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11. Container
overview
Pros
• Fast
• Portable
• Predictable
Cons
• RequiresVM or PaaS
• Short release cycles1
1For new container environments @vpetersson

12. Container
technologies
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13. Container
management
“Container Operating Systems”
• CoreOS
• Ubuntu’s Snappy Core
• RedHat’s Project Atomic
• RancherOS
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14. Container
management
Orchestration Tools
• (Ansible, Chef, Puppet, Salt etc.)
• Google's Kubernates
• OpenStack
• Docker’s Swarm and Compose
• Mesosphere’s DCOS
• panamax
• shipyard
• and many more…
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15. Mainframes
Time
Bare metal
(x86)
Virtual
machines
Containers
IaaS layer PaaS layer( )
@vpetersson

16. PaaS
overview
Pros
• Easy to use
• Turnkey solution
• No management
Cons
• Lock-in
• Expensive (at scale)
• Many limitations
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17. PaaS
technologies
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18. PaaSvs.Containers
• What’s the relationship between
PaaS and containers?
• Can I run Docker containers
on a PaaS?
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19. • Ephemeral runtime environments
• Portable
• Abstraction
• Self-managing systems
• Host OS becomes less important
• Containers are here to stay
• Hybrid setups
Trends
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20. Cloud Exchange
• Portability
• Hybrid
• Multi-cloud
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21. • Deck:
https://speakerdeck.com/vpetersson/server-evolution
• Email:
viktor@cloudsigma.com
• Twitter:
@vpetersson
• LinkedIn:
http://www.linkedin.com/in/vpetersson
Thanks
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