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Docker, OSS and AzureA Short Introduction
Elton Stoneman@EltonStoneman | elton@docker.com
• Why Docker containers?
• Docker and OSS
• Docker on Azure HOLs
Why Docker Containers?
Density. 5-10X over VMs
4
8 VMs
40 containers
Portability. Consistent deployment
5
Build Test Prod
6
Security. Provenance & trust
Security ScanningContent Trust
Docker and OSS
buildshiprun
Open JDK
Tomcat
Web App
Ubuntu
Apache
> docker build
FROM tomcat:7-jre8
COPY app.war /usr/local/tomcat/webapps/
EXPOSE 8080
ENTRYPOINT catalina.sh run
# escape=`FROM microsoft/iis:windowsservercoreSHELL ["powershell", "-Command"]
RUN Remove-Website -Name 'Default Web Site'; ` New-Item –Type Directory –Path C:\app; ` New-Website -Name 'product-launch' ` -PhysicalPath 'C:\app' -Port 80
COPY ProductLaunchWeb /app
Docker Image
• Single (logical) binary• Complete application stack• Packaged & configured
> docker push
hub.docker.com
Image Registry
• Shared image store• Free, commercial & EE products• Open source package
> docker run
Docker Container
• Logical process boundary• Namespaces & cgroups• Open implementation
Docker on Azure HOLs
Web
API
20
Docker Compose• Distributed solutions
– Multiple containers
• Organization
– Single deployment doc
• Running
– Start, stop and scale
version: '3'
services:
elasticsearch: image: sixeyed/elasticsearch:nanoserver message-queue: image: nats:nanoserver
index-prospect-handler: image: sixeyed/product-launch-index-handler:v4 depends_on: - elasticsearch - message-queue
Docker Compose Fundamentals• Organizing distributed solutions
– Single definition | Multiple environments
• Managing multi-container solutions
– Start, stop, scale | Update
• Client-side tool
– Local YAML file | Remote Docker engine
23
Docker Swarm
Manager Worker WorkerWorker
Docker Swarm Fundamentals• Native Docker clustering
– OS | Docker
• Manager-worker architecture
– High-availability | Scale out
• Zero-downtime updates
– Application updates | Node patching
THANK YOU
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