Tori Wieldt gave a presentation on Docker. The presentation covered New Relic's journey with Docker, challenges they faced such as Docker being a moving target and noisy neighbors, basics of Docker, what Docker is not (e.g. a cloud platform), how to use Docker in operation including monitoring containers with Docker stats and API, and resources for learning more such as tutorials on Docker's website.

1. PresenterName,TitleandorDate
A Skeptic’s Guide to Docker
Tori Wieldt, Developer Advocate, New Relic
@ToriWieldt
V2: Infrastructure

2. 2
Confidential ©2008-15 New Relic, Inc. All rights reserved.
New Relic’s Journey
Challenges with Docker
Basics
Docker is Not
Docker in Operation
What’s Happening With Your Containers?
AGENDA

3. Ruby Frontend + Java Backend
1) The Ruby Monolith
2) The Duolith
3) Services Architecture
200+ Services
Docker in Prod 2014

4. 4
• Based on Selenium
• Each script runs in its
own container
• Performance
• Security
A crash test dummy
for your software.

5. 5
 Docker is a Moving Target
 Only the BOLD run the current version
 Boot2Docker/ Docker ToolBox/ Docker for Mac
blog The Modern Developer Workstation on MacOS with Docker
 Docs are Written for Greenfield development
 No Runbook for Migrating existing apps
 Noisy Neighbors
 Docker Fork by Red Hat?
CHALLENGES

6.  A Cloud Platform (AWS, OpenStack)
 Configuration Management (Chef, Puppet)
 Testing (Vagrant)
 Deployment Tool (pre-Swarm)
Docker is Not…

7. New Skills and Tools
 For Ops
 Library of Base Images
 Solid Process for Building and Shipping
 Good Internal Docs for Devs
 For Devs
 Learn the Tools
 Let Go of the Notion of a Large and Persistent Filesystem
 Make your code multithreaded
 Take Ownership of the App’s Dependencies
What’s New?

8. How Do You Know What’s
Happening With Your
Containers?

9. 9Confidential ©2008-15 New Relic, Inc. All
rights reserved.
 Docker Stats Command & Docker API
Looking At Containers

10.  Complete visibility across
your dynamic infrastructure
Key host health metrics
physical memory, Disk I/O
utilization and capacity
Track container performance by
 image
 version
 other metadata
INFRASTRUCTURE

11. INFRASTRUCTURE
“Which app uses the most resources?”
Processes, Grouped by Container Image

12. INFRASTRUCTURE
“What’s Happening Inside a Container?”

13. Learn More
 “Hello World” Tutorial at Docker.com
 Docker In Production book
 NewRelic.com/docker
 Docker for Java Tutorial
 github.com/docker/community/tree/master/tutorials/java
 NR Infographic: The Life and Times of a Docker Container

14. Thank You
Tori Wieldt
ToriWieldt@newrelic.com
@ToriWieldt
Confidential ©2008-15 New Relic, Inc. All rights