docker tooling for java ee developers

@xcoulon#Devoxx #Docker #Eclipse

Docker Tooling for Java EE Developers

Xavier Coulon Red Hat


About the speaker

• Senior Software Engineer

• Working at Red Hat for 4 years

• JBoss Tools team member

• Committer on Docker Tooling at Eclipse.org

• Side project: http://github.com/lambdamatic/

http://github.com/lambdamatic/

Introduction



Docker components

• Images

• Containers

• Daemon

• Registries

• Clients


Docker Images

• "build" components

• read-only templates

• combination of layers


Docker Containers

• "run" components

• based on Images

• contain application and dependencies but share same kernel

• can be started, stopped, paused, deleted

• containers are immutable and disposable


Docker Daemon

• runs natively on Linux

• inside a VM on Windows and Mac OS X


Docker Clients

• clients (CLI, IDE) run on host VM


Docker Registries

• "distribution" components

• public instances (https://hub.docker.com)

• private instances

https://hub.docker.com


Benefits of Docker

• No need for an hypervisor for each container

• many containers per VM

• less memory/CPU resources

• Density, infrastructure utilization


Benefits of Docker

• Package the full stack in a container:

• OS,

• JVM,

• App server

• Application with its configuration

• Portable across environments

• Developer machine

• CI / Staging / Production environments

• No more "but it works on my machine" argument


Docker at eclipse.org

• Linux tools project (works on Mac OS X and Windows, too)

• Make Docker accessible from Eclipse

• Works with existing Docker tools (docker-machine, etc.)

• Focus on developer experience

• Allow reuse by other plugins

http://eclipse.org


Docker setup

• Install Docker Toolbox from docker.com

• Install Eclipse Docker tooling

• from eclipse.org/linuxtools

• from tools.jboss.org (mirrors eclipse.org/linuxtools)

http://docker.com

http://eclipse.org/linuxtools

http://tools.jboss.org

http://eclipse.org/linuxtools

Demo



LiveReload basics

Browser with LiveReload

extension

LiveReload Server

Disk File

WebSocket

Monitoring HTTP


LiveReload in DevStudio

Browser (with LiveReload

extension)

LiveReload Server

App Server

HTTP

WebSocket

Publishing

DevStudio

Docker Container

Volume

Conclusion



Summary of highlighted features

• Manage connection to Docker daemons

• Search and pull images

• Build custom images from Dockerfile

• Run images with ports, volumes and links

• Manage containers (start/stop/pause/unpause/kill)

• Use a server adapter and LiveReload to publish an application

• Remote debug in a container


Let's Get in Touch !

• http://tools.jboss.org

• @jbosstools

• #jbosstools

• [email protected]

• [email protected]

http://tools.jboss.org

mailto:[email protected]

mailto:[email protected]


Questions &

Answers


Thanks ! Feedback appreciated