1. In-Depth Introduction to Docker
Neil Peterson
Content Developer
Microsoft

2. Agenda Concepts and Terms
Running Workload in Containers (Docker Engine)
Container Images
More Advanced Workload (Docker Compose / Intro to Orchestration)

3. Concepts and Terms

4. Containers Introduction
What:
Virtualization Technology (similar goal as a VM but different guts).
Host applications, processes, etc.
Shared kernel architecture*
Slick ‘image’ system
Why:
Fast Start
Hyper Density
Portable
Improved dev / test / deploy experience?
Potential to change how application are written and datacenters operate.

5. Docker
What:
Organization / OSS Project at the forefront of Container management technology.
What has Docker done
Simplified many aspects of container management
Introduced a container image format
Developed orchestration and clustering tools

6. Docker Tech
Docker Engine – Docker CLI and REST API. Container Image – template for container instances. Dockerfile – Utility for automation container image creation. Docker Compose – Utility for automation container deployment (multiple containers). Docker Hub – Public registry for Docker images. Docker Swarm – cluster of Docker hosts. Docker Trusted Registry – Private registry for container images. Docker Cloud – centralized provision of cloud based container hosts. Docker Universal Control Plane – centralized management of container hosts and applications. Docker Swarm Mode – Docker 1.12 implementation of Swarm (no longer a separate service).* Docker Service – Docker 1.12 application modeling and deployment system.* Docker For Windows – Docker in a box for Windows. Docker on Windows – native dockerd.exe and docker.exe on Windows Server and Windows 10. Docker For Mac OS X – Docker in a box for Mac OS X.

7. Demo – Hello World ++
#ITDevConnections

8. Running Workload Docker Engine and Images

9. Docker Engine Docker ‘Server’ (dockerd.exe) Docker CLI (docker.exe)
Current Version 1.12* - big release
Available for Linux and Windows
Operations
Start / stop / remove container instances
Pull / create / remove container images
Manage container networks
Manager container data volumes

10. Container Images Containers are created from images
Shared between containers
Immutable - should not be modified
Easy to create
Easy to move .via Docker registry

11. Container Images Container Host Application 1 Application 2
Prerequisites VSRD
Prerequisites .NET
Prerequisites .NET
Prerequisites .NET
Base Image
Base OS Image
Base Image
Base Image

12. From App to Container
Develop application (potentially in a container)..
Create container
Install application
Capture into container image

13. Creating Container Images
Manual – docker capture command
Dockerfile – automated solution
FROM tutum/apache-php
ENV connectionString <storage connection string>
ENV azurequeue <queue name>
RUN apt-get update && apt-get install git -y
RUN rm /app/* && mkdir /tmp-app && \
git clone /tmp-app && \
cp -rf /tmp-app/php-stock-front/* /app && \
rm -rf /tmp-app
CMD /run.sh

14. Image Portability Stored and Retrieved in Image Repositories
Hub.docker.com
Docker Private Registry
Others

15. Demo – Docker and Container Images
#ITDevConnections

16. More Advanced Workload Container Schedulers

17. Multi-Container Example
Get Tweets
Container
Azure Queue
Process Tweets
Container
Process
Process 16 32 2

18. Docker Compose Single host multi container automation
Performs Docker operations in bulk
Create service in Docker Swarm
version: '2'
services:
db:
image: cholzberger/easymysql
environment:
user: root
password: Password1
right: WRITE
url:
ports:
- "3306:3306"
app:
image: neilpeterson/nepetersfront
- 80:80
links:
- db:mysql

19. Container Scheduling / Orchestration
Clustering
Automation
Load balancing
Service Discovery
Declarative App Modeling
Self Heal

20. Demo – Docker Compose
#ITDevConnections