Containers are here!

Michael Schmid

@Schnitzel

CTO Amazee

michael@amazee.com

  • Containers?

  • Containers != Docker

  • Future

Containers?

Containers are not VMs

Physical Servers are Cities

City

  • Streets
  • Water system
  • Power Grid

     
  • Highways

Servers

  • CPU
  • RAM
  • Storage

     
  • Network

VMs are Houses

House

  • own plumbing
  • own heating
  • own power distribution
  • own doors & fences

VM

  • full OS
  • own network stack
  • own kernel
  • own firewall

Containers are Appartments

Appartment

  • shared plumbing
  • shared heating
  • shared power distribution
  • shared doors & fences

Container

  • minimal OS
  • shared kernel
  • common Container engine
  • shared firewall

Containers?

  • Lightweight: really only what is necessary
  • Fast: start in milliseconds
  • Secure: full separation between containers
  • Microservices: one container = one service
  • Can still run on VMs :)

Who uses containers?

  • VISA (100,000 transactions per day)
  • Netflix (1 Mio containers per week)
  • Alibaba (12 billion dollars on Singles Day)
  • many many more!

Docker?

Docker 

  • Docker Engine
    • Executing, Monitoring, Network, Storage, Security, Plugins
  • Docker Images
    • Representation of full App saved in Layers
  • Docker Registry
    • Storage for Docker Images
  • Docker Swarm
    • Orchestration

Orchestration 

  • Docker Swarm, Kubernetes, OpenShift, Rancher
  • Containers are not persistent
  • Orchestration systems make sure enough containers are running

Why should I care?

  • Dockerfiles can be written by developers
  • Docker allows to run more then just Wordpress
  • Containers are used more and more

Future

Future

  • OS with every service as container (Rancher OS)
  • Windows Containers & Linux Containers on Windows
  • Open Container Initiative
  • maybe not "Docker" anymore

?

This is not a test: What you should know about containers - WordCamp Austin

By Michael Schmid

This is not a test: What you should know about containers - WordCamp Austin

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