Rapid Application Development!
in the Cloud and On-Premises!
with Docker !
Niklas Heidloff, IBM
Bluemix Developer Advocate
@nheidloff
heidloff.net

Rapid Application Development!
§ Need for speed
§ Deliver new apps in days rather than months
§ Innovate via functional prototypes rather than UI sketches
§ Need for simplicity
§ Enable different types of developers including line of business
developers to build valuable apps

New Methodologies and new Technologies!
§ New methodologies
§ Agile
§ Design Thinking / Minimal Viable Product
§ New technologies
§ Open Source
§ StackOverflow
§ Tools, platforms, languages

Rapid Deployment ?!
§ Coding is often rapid, but deployment is (mostly) not
§ Issue: Different target platforms with different configurations
§ Expanded role of developers: Not only responsible to write
code but responsible for full life cycle up to the testing in
production environments
§ Old developer excuse “it works on my machine” doesn’t count any
longer

DevOps!
§ DevOps supports developers to automate testing and
deployments through delivery pipelines
§ But deployments can still be challenging
§ Different types of applications
§ Different target environments

Containers to the Rescue!

Containers vs. VMs!
§ Lighter weight than VMs (virtual machines)
graphics from docker.com

Enter Docker!
§ Standardizes the packaging of applications and container
runtimes
§ Write once run everywhere
§ Package once deploy everywhere

Introduction to Docker!
§ Enabling application development efficiency,
making deployment more efficient,
eliminating vendor ‘lock-in’ with true portability
§ Open
§ Software
§ Contribution
§ Design
§ Governance

Docker Terminology!
§ Image
§ Container
§ Registry
§ Engine
Cloud
On
Prem

Demo!
§ Simple Java web application on Liberty Profile
§ Create image locally
§ Run container locally

Sample Servlet!

Dockerfile!

Build Image!

Run Container!

Sample Application!

Same Sample on Tomcat!

Spring Boot Sample!

Docker Maven Plugin!
§ rhuss/docker-maven-plugin to build images and run
containers
§ mvn docker:build
§ mvn docker:start
§ mvn docker:stop
§ mvn
-Ddocker.removeAll
docker:remove

Registries to share Images!
§ Docker Hub
§ Public
§ Private
§ Docker Trusted Registry

Docker on IBM Bluemix!
§ Bluemix is IBM’s application platform in the cloud based on
Cloud Foundry
§ IBM extends and connects Docker containers to
production-ready enterprise environments
§ IBM hosted private registry
§ Run containers in local datacenters or in the cloud
§ External IP addresses
§ Integrated monitoring and logging
§ Security readiness guidance via Vulnerability Advisor

Demo!
§ Push image to Bluemix
§ Create container on Bluemix
§ Monitor container

Tag Image!

Push Image!

Push Image (cont.)!

Image Registry!

Run Container!

Running Container – Overview !

Sample Application!

Running Container – Instances !

Running Container – Monitoring !

Running Container – Logs !

Running Container – Advanced Logs !

Vulnerability Advisor!

Vulnerability Advisor (cont.)!

Automation via Delivery Pipelines!
§ To simplify the process to build images and run containers,
delivery pipelines can be used
§ Different deployment strategies can be used to deploy to
different target environments without downtimes

Demo!
§ Automate deployments via delivery pipelines

Java Code Modification!

Push Change!

Automatic Maven Build!

Automatic Docker Build!

Automatic Container Creation!

Completed Deployment!

Changed Application!

Bluemix Services for Docker Applications!
§ Bluemix allows not only the hosting of Docker applications
but also provides more than 100 services to build rapidly
applications without having to set up infrastructure
§ Services are provisioned when added to applications and
can be accessed via REST APIs (plus other language
bindings) with user specific credentials

Bluemix Services!
§ Databases
§ Services to build web apps
§ Cognitive services
§ Backends for mobile apps
§ Internet of Things
§ Analytics and Big Data
§ Access to on-prem services and data

Demo!
§ Leverage Bluemix services

Docker to Cloud Foundry Bridge!

Bind Services!

Bind Services (cont.)!

Bound Service with Credentials!

Sample Application accessing Credentials!

Take-Aways!
§ Docker containers allow the standardized packaging of
applications and easy deployments to different
environments
§ Docker is currently the de-facto container standard and is
evolving into the Open Container Initiative
§ IBM adds enterprise capabilities for Docker images and
containers
§ Try Docker in the cloud via the 30 days trial of Bluemix

Thank you!