What is Docker?

Docker.com says

Docker is an open platform for developers and sysadmins to build, ship, and run distributed applications.

Docker Engine

A portable, lightweight runtime and packaging tool

Docker Hub

A cloud service for sharing applications and automating workflows

Less portable, minimal overhead

Most portable,
lots of overhead

Manual
configuration

Traditional VMs

CM tools

Docker

1

Containers vs. Virtual Machines

2

One process
per container

(mostly)

3

Don't install SSH
Use                          

docker exec

docker exec

Runs a new command inside an existing container

$ docker exec -it c05aa7baf600 bash
root@c05aa7baf600:/#

docker exec [OPTIONS] CONTAINER COMMAND [ARG...]

5

Use the official
Docker Library images

6

Keep an eye out for Docker integrations

Source: Docker tweet

7

Avoid hosting service-specific dependencies

Cloud-agnostic hosting

8

Check out container-specific hosting services

Container-specific hosting

Container-specific hosting

Container-specific hosting

9

Figure out the
right time for you

2014

• Get to 1.0 (production-ready)
• Establish partnerships
• Round out some rough edges (v1.3)

2015

• Make Docker easier to use
• Popularize best practices for scaling
• "Include more batteries" (w/o cannibalizing ecosystem)
• Address security concerns

A new player

10

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