Game of Hosts!

VMs, Containers & Scaling

Liz Rice

@force12io / @lizrice

artwork: https://www.facebook.com/graphicck

Bare Metal

Strength: Power

Weakness: Inflexibility

artwork: https://www.facebook.com/graphicck

Virtual Machines

Strength: Flexibility, Agnosticism, Security,Networking

Weakness: Slightly overweight

artwork: https://www.facebook.com/graphicck

Containers

Strength: Lightweight, Fast

Weakness: Unseasoned,Security, Networking

artwork: https://www.facebook.com/graphicck

Containers

Brought to popularityby Docker

Scheduling & Orchestration

Docker Swarm KubernetesMesos / MarathonECSNomad

Hypothesis

Fast create / destroy + clever schedulers = autoscaling revolution!

Hypothesis

VMs are too slow for on-demand autoscaling

Hypothesis

Microscaling - scale within capacity

Hypothesis

Services with different demand characteristics

Hypothesis

Cattle not pets

Hypothesis

Self-healing architectures

Fantasy or reality?

Fantasy or reality?

Average utilization: 12%

Fantasy or reality?

Google & Netflix achieve over 50%

WIIFM?

artwork: https://www.facebook.com/graphicck

Developers

Containers are hot

artwork: https://www.facebook.com/graphicck

Operations

Containers don’thave the experience

Is this just a crush?

Domination still uncertain

Try Microscaling-in-a-Boxat Force12.io

Microscaling.org