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Docker, Get used to it !
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Julien Vey
December 03, 2013
Programming
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3.1k
Docker, Get used to it !
A presentation of Docker use-cases
Julien Vey
December 03, 2013
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Transcript
Get used to it !
Julien Vey @julienvey
Pierre Padrixe @undefd
None
What is Docker ?
What is Docker ?
When can I use Docker ?
Sandbox
$ ./install-XXX.sh !
$ ./install-XXX.sh Error during install ! …
$ ./install-XXX.sh Error during install ! … $ ./uninstall-XXX.sh !
$ ./install-XXX.sh Error during install ! … $ ./uninstall-XXX.sh Could
not remove file xxx !
$ ./install-XXX.sh Error during install ! … $ ./uninstall-XXX.sh Could
not remove file xxx ! ! FAIL !
Please Docker, help me !
$ docker run $ ./install-XXX.sh Error during install !
$ docker run $ ./install-XXX.sh Error during install ! Try
Again !
$ docker run $ ./install-XXX.sh Error during install ! Try
Again ! $ docker run $ echo "Some conf" > XXX.cfg $ ./install-XXX.sh Success !
Repeatability
$ ./myscript.sh !
$ ./myscript.sh $ ./myotherscript.sh !
$ ./myscript.sh $ ./myotherscript.sh $ rm -rf myscriptdir !
$ ./myscript.sh $ ./myotherscript.sh $ rm -rf myscriptdir ! OOPS
!
Please Docker, help me !
RUN ./myscript.sh
RUN ./myscript.sh RUN ./myotherscript.sh
RUN ./myscript.sh RUN rm -rf myscriptdir RUN ./myotherscript.sh
RUN ./myscript.sh RUN rm -rf myscriptdir RUN ./myotherscript.sh OOPS ?
RUN ./myscript.sh RUN rm -rf myscriptdir RUN ./myotherscript.sh $ docker
commit $id me/snap $ docker commit $id me/snap $ docker run me/snap
Setup your Development environment
A development Environment Today
Tomcat Vert.x NodeJS Apache PHP Mongo
$ install $ install $ install $ install $ install
$ install Tomcat Vert.x NodeJS Apache PHP Mongo
Tomcat Vert.x NodeJS Apache PHP Mongo $ configure $ configure
$ configure $ configure $ configure $ configure
Do this for each Developer $ configure $ configure $
configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure $ configure
Too Many Steps !
Please Docker, help me !
Tomcat Vert.x NodeJS Apache PHP Mongo $ configure $ configure
$ configure $ configure $ configure $ configure Configure a Container Once
just run it for each developer $ docker run $
configure $ configure $ configure $ configure $ configure $ configure $ docker run $ configure $ configure $ configure $ configure $ configure $ configure $ docker run $ configure $ configure $ configure $ configure $ configure $ configure
On any (Linux) environment $ docker run $ configure $
configure $ configure $ configure $ configure $ configure $ docker run $ configure $ configure $ configure $ configure $ configure $ configure $ docker run $ configure $ configure $ configure $ configure $ configure $ configure
Or split by services $ docker run NodeJS $ configure
Apache $ configure $ docker run MongoDB $ configure $ docker run
Or split by services $ docker run NodeJS $ configure
Apache $ configure $ docker run MongoDB $ configure $ docker run and run ONLY what you need
PaaS Platform-as-a-Service
a PaaS deploys your application
your application needs Isolation
your application needs Fast Startup Time
Lucky you !
Docker is isolated
Docker is Fast
PaaS Providers already use Containers
OpenShift Heroku Docker INC use LXC
Flynn Deis Dokku are built with Docker
Isolation VS Performance
Sometimes, a Virtual Machine is Not Enough
You need Bare Metal Performance
You need Bare Metal Performance
But you Don’t want This Bare Metal Server
You’d Prefer have This Bare Metal Server
By Isolating your Apps in Containers, ! You provide Isolation
without giving up Performance
Continuous Deployment
Deliver Code Test Deploy
Deliver Code Test Deploy to Integration Deploy to Staging Deploy
to Production
Deliver Code Test Deploy to Integration Deploy to Staging Deploy
to Production Install environment Configure Migration scripts Deploy deliverable Install environment Configure Migration scripts Deploy deliverable Install environment Configure Migration scripts Deploy deliverable
We have to change the Delivery Unit
Deliver a container
Deliver a container Install environment Configure Migration scripts Deploy deliverable
Deliver a container Test Deploy to Integration Deploy to Staging
Deploy to Production
Deliver a container Test Deploy to Integration Deploy to Staging
Deploy to Production $ docker run $ docker run $ docker run Install environment Configure Migration scripts Deploy deliverable Install environment Configure Migration scripts Deploy deliverable Install environment Configure Migration scripts Deploy deliverable
The Container is the new Delivery Unit
Demo Time !
User $git push triggers build - build project - build
container deploys and run container
User $git push triggers build - build project - build
container deploys and run container Everything is a container
in order to build the container $docker build <mycontainer> github.com/jpetazzo/dind
What Else ?
User $git push triggers build with Promoted Builds Plugin promote
to staging promote to integration promote to production
$ docker run base echo Questions?
Thanks