Creating a Custom PaaS with
Mesos & Marathon  

Tehmasp Chaudhri | @tehmaspc
the goals:


  • to build an internal container centric infrastructure to allow for the rapid delivery of business applications
  • to support our business requirements around application deployments
  • to potentially support many applications and teams
  • to increase happiness for and amongst developers and operations teams
why containers?:
the good, the bad
  • speeding up development
  • speeding up deployment (and consistency)       
  • creating a clean deliverable by dev to ops

  • ...

good:
bad (challenges):
  • management of containers?

  • application linking & discoverability?        
  • enterprise concerns?

  • ...

tackling the bad:


after understanding our reqs and researching the best tools available, we decided upon Mesosphere's Marathon on top of Apache Mesos for this new internal infrastructure.

 

these tools would allow us to build a custom PaaS solution supporting containers in a manageable way for our business needs.
mesos:
the what, the why
what:
  • a system for scheduling and distributing work across a cluster of nodes abstracted into a large resource pool
why:
  • well supported; top level Apache project
  • raw management and support for Docker containers
  • attractive means of managing many app services by an operations team
  • multiple frameworks (e.g. Marathon) 
mesos:
architecture
mesos:
GUI
marathon:
the what, the why
what:
  • a framework for Apache Mesos that manages the running of applications (PaaS-in-a-box)
why:
  • excellent feature set for our application services needs:
    • e.g. app constraints, scaling, events, discovery and load balancing
  • a REST API to support creating our own PaaS rules on top of
marathon:
architecture
marathon:
GUI
utopia:
the what, the why
what:
  • our internal CLI tool interfacing with our Marathon deployment which every developer uses in order to develop, deploy, and maintain their applications with
  • enforces our internal development and deployment requirements

  • greatly increases developer productivity and ease of deployments
  • forces an operations team to think like systems developers
why:
utopia:
architecture
utopia:
architecture cont'd
  • application web routing via Bamboo
  • Zookeeper for configuration persistence
  • application (container) logging captured via Fluentd into ElasticSearch cluster
  • application monitoring via New Relic / Docker integration 
  • server configuration management via SaltStack
going forward:


  • Mesosphere DCOS (forget everything I said?)
  • Docker 1.5 - current, brings useful infrastructure features
questions?

Creating a Custom PaaS with Mesos & Marathon

By Tehmasp Chaudhri

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Creating a Custom PaaS with Mesos & Marathon

Mesos & Marathon Deployment @ Aetna

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