It's the age-old tale of building vs buying, but with a twist. Almost all of the tools to build your own PaaS today are Open Source, so why wouldn't you want to build your own? The unstructured vs structured conversation is very opinionated right now. In this session we will go through the pros and cons of both, with explanations of standard concepts such as distributed systems, containers and orchestration engines.

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UNSTRUCTURED AND STRUCTURED
PAAS DEMYSTIFIED
JONAS ROSLAND, EMC {CODE}
@JONASROSLAND

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PAAS = CLOUD + MAGIC?

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• Clustered servers
• Manual deployments
• Redundancy, not necessarily high availability
BACK IN THE OLD DAYS

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• Infrastructure as a Service
• Deploy virtual machines
• Manual/half-automated way of deploying apps
• Almost efficient
THEN SOME TIME AGO

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• Collection of compute resources
• Spread out horizontally
• Brings scale to your deployments
NOW - PLATFORM AS A SERVICE

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• Multiple masters
• Can span across datacenters and locations
• Aggregates resources and roles
• Enables use of standardized frameworks
PAAS ARE ALWAYS DISTRIBUTED SYSTEMS

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• Not just server-side clustering tools
• Many layers
• Schedulers, service discovery, logging, monitoring
and much more
MANAGING THIS INFRASTRUCTURE

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• Easy, standardized ways of deploying apps
• Platforms made for integration, not silos
• Enhanced functionality for managing both modern
and traditional apps
Brings order out of chaos
THE END RESULT

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Standard definitions

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PAAS SITS ON TOP OF SCHEDULERS

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• Manages all physical/virtual
resources
• Deploys and schedules apps
• Handles hardware failures
RESOURCE MANAGERS AND SCHEDULERS

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SCHEDULING

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• Enables apps and infra
to automatically find
parts of each other
• Keeps track of how to
connect and use the
application services
SERVICE DISCOVERY

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SERVICE DISCOVERY

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APPLICATIONS RUN IN CONTAINERS
Code
Code and
requirements
Container

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• Storing data (state) is a critical component of any
application
• Where they store this state defines their class
– Connected database
– In memory
– Local disk
APPLICATION STATE DIFFERENCES

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• Store no critical data locally
• Can be scaled as needed
• Recovers quickly
STATELESS APPLICATIONS

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• Services that store state
• Have usually been treated as HA apps
• Can be scale-out or scale-up
STATEFUL SERVICES

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APPLICATIONS BUILT FROM SERVICES
Front End or Non-Persistent
Data Services (Persistent)
Scale-Up
Scale-Out
Cassandra
Postgres
Redis
CouchDB
Elastic Search
Hadoop
MariaDB
Mysql
Nginx
HAProxy
MongoDB
RabbitMQ
Tomcat
Memcached
ScaleIO ECS
ApacheRails
Language Specific HTTP

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OPERATING AN APPLICATION PLATFORM
Custom Container
Platform
Container
Platforms
Cloud-Native
Platform
BUILD YOUR OWN
PACKAGED BUT
COMPOSEABLE
PACKAGED

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PLATFORMS ENABLING SIMILAR FEATURES
• Supports microservices and loosely coupled services
• Scales out quickly
• Abstracts away virtual and physical resources
• Infrastructure as Code friendly

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DIFFERENCES IN PLATFORMS
• Run cloud native applications
• Structured/Packaged
• Pre-determined architecture and
capabilities
• Focused and opinionated
• Operated by major releases
• Run any application
• Unstructured/Composable
• Build it yourself
• Move as fast as you want
• Readily adopt new features
Container Platforms Cloud Native Platforms

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• Cloud Native platforms looks at your code,
downloads the requirements and builds a new
container to run your apps
• Container Platforms takes already bundled
containers and runs them
• This changes the way you would handle a CI/CD
scenario depending on the type of platform you use
DIFFERENCES IN CONTAINERS

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CLOUD NATIVE PLATFORM
Write code
Push it
Platform gathers
requirements
Builds container
Container is deployed

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CONTAINER PLATFORM – METHOD ONE
Write code
Push it
Container is deployed
Gather requirements
Build container

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CONTAINER PLATFORM – METHOD TWO
Download
container
Container
registry
Request to
run app
Container is deployed

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CLOUD FOUNDRY - PACKAGED
Packaged

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MESOS - COMPOSED

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COMPOSED AND PACKAGED
Mesos
Marathon Deis Cloud Foundry Chronos

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• Completely depends on your needs
• Both methods are valid for different purposes
• You can run multiple environments, at the same
time, no need to lock yourself into just one
SO WHICH ONE SHOULD YOU CHOOSE?

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• When the platform will be your differentiator
• When you have highly skilled developers and
operations
• When you want to participate in building the tools,
skills and software to run it
• When you have enthusiastic employees eager to
learn and support new systems
CHOOSE UNSTRUCTURED/COMPOSABLE

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• When your applications are the differentiators
• When you have highly skilled developers
• When you want to provide a stable and proven
platform
CHOOSE STRUCTURED/PACKAGED

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• PaaS is not magic
• Container technology is the central theme
• Unstructured/structured can be better described as
composed/packaged
• Using both is absolutely valid!
SUMMARY

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Before opening up for questions

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Data Persistence in the New Container World
Wednesday 3PM
Joshua Bernstein
VP of Technology for ETD
Tobi Knaup
CTO & Co-Founder of Mesosphere
Guru Session

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@EMCcode
@jonasrosland
emccode.com
community.emccode.com
Come visit us at
Booth #1044
or in the vLab!
Questions?

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