Introduction to Docker by Amjith Ramanujam

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@amjithr Intro to Docker PYCON ■ Saturday, April 12, 14

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@amjithr Hi  Saturday, April 12, 14

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Saturday, April 12, 14

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@amjithr Why? Saturday, April 12, 14

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@amjithr Why? Saturday, April 12, 14

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@amjithr Why? Saturday, April 12, 14

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@amjithr Why? Saturday, April 12, 14

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@amjithr Why? Saturday, April 12, 14

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@amjithr Why? Saturday, April 12, 14

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@amjithr Why? Celery Saturday, April 12, 14

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@amjithr Why? Celery Saturday, April 12, 14

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@amjithr WHAT’S Docker? Saturday, April 12, 14

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@amjithr WHAT’S Docker? Not Pants Saturday, April 12, 14

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@amjithr DotCloud -> Docker Inc Jan Written in Go Active community History Saturday, April 12, 14

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@amjithr “Docker is an open-source engine that automates the deployment of any application as a lightweight, portable, self-sufﬁcient container that will run virtually anywhere*.” Saturday, April 12, 14

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@amjithr CHROOT BSD JAILS SOLARIS ZONES What? Saturday, April 12, 14

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@amjithr Linux Containers AUFS Git like versioning REST API What? Saturday, April 12, 14

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@amjithr What? Bare Metal Host OS Hypervisor Guest OS Libs AppA Guest OS Libs AppB Guest OS Libs AppC Bare Metal Host OS D o c k e r Libs Libs App A App A’ App B App B’ VM Container Saturday, April 12, 14

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@amjithr Lightweight  Isolated Instances Faster than VMs Why? Saturday, April 12, 14

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@amjithr docs.docker.io - Installation instructions OS X - boot docker (VM) + docker client Setup Linux C0 C1 client Saturday, April 12, 14

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@amjithr docs.docker.io - Installation instructions OS X - boot docker (VM) + docker client Setup OS X VBox linux C0 C1 client Linux C0 C1 client Saturday, April 12, 14

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@amjithr Docker Daemon - Server Docker Client - Client Terminology Saturday, April 12, 14

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@amjithr Terminology Daemon Linux TCP Socket Client Client Linux TCP Client OS X TCP Saturday, April 12, 14

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@amjithr  DEMO Saturday, April 12, 14

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@amjithr Images - Read-only snapshot Containers - Instantiation of an Image Terminology Saturday, April 12, 14

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@amjithr Terminology Master Copy Photocopy B + Margin Notes Photocopy A + Highlights Photocopy C Saturday, April 12, 14

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@amjithr Terminology IMAGE Lib Bin Env Vars Files ContainerB Lib Bin Env Vars’ Files ContainerA Lib Bin Env Vars Files ContainerC Lib Bin Env Vars Files’ Saturday, April 12, 14

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@amjithr Registry - PyPI for docker images Repository - Projects in the Registry Terminology Saturday, April 12, 14

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@amjithr docker pull docker images docker run docker ps docker logs Basics Saturday, April 12, 14

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@amjithr Dockerﬁle - Series of commands Automation Saturday, April 12, 14

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@amjithr Dockerﬁle FROM base ENV TEST_ENV true ADD test_file / RUN apt-get update RUN apt-get install -y fortune cowsay CMD fortune | cowsay Saturday, April 12, 14

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@amjithr Django Port Forwarding docker run -d django-docker Network Saturday, April 12, 14

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@amjithr Django Port Forwarding docker run -d -p host:container django-docker Network Saturday, April 12, 14

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@amjithr Volumes - Mount folders - host/container docker run -v host_path:container_path django Links - Service discovery through env vars docker run --link mysql:db --name webapp django Misc Saturday, April 12, 14

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@amjithr Docker daemon is also a server REST API - List of images/containers - Create/Start/Stop/Delete containers - Websocket attach - Shipyard REST API Saturday, April 12, 14

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Saturday, April 12, 14

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@amjithr PERFORMANCE! Saturday, April 12, 14

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@amjithr New Relic adapter_cherrypy.py adapter_ﬂup.py adapter_gevent.py adapter_gunicorn.py adapter_meinheld.py adapter_paste.py adapter_waitress.py adapter_wsgiref.py application_celery.py application_gearman.py component_cornice.py component_piston.py component_tastypie.py coroutines_gevent.py database_dbapi2.py database_mysql.py database_mysqldb.py database_psycopg2.py database_sqlite.py datastore_pymongo.py external_dropbox.py external_facepy.py external_feedparser.py external_httplib.py external_httplib2.py external_pywapi.py external_requests.py external_thrift.py external_urllib.py external_urllib2.py external_urllib3.py external_xmlrpclib.py framework_bottle.py framework_cherrypy.py framework_django.py framework_ﬂask.py framework_pylons.py framework_pyramid.py framework_tornado.py framework_twisted.py framework_web2py.py framework_webpy.py memcache_memcache.py memcache_pylibmc.py memcache_umemcache.py middleware_weberror.py solr_pysolr.py solr_solrpy.py template_genshi.py template_jinja2.py template_mako.py Saturday, April 12, 14

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@amjithr New Relic Saturday, April 12, 14

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@amjithr New Relic Saturday, April 12, 14

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@amjithr New Relic Saturday, April 12, 14

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@amjithr New Relic Saturday, April 12, 14

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@amjithr New Relic Saturday, April 12, 14

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@amjithr Problem Celery Saturday, April 12, 14

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@amjithr Solution Celery Saturday, April 12, 14

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@amjithr REBUILDING the server is trivial. Cloning a new server is effortless. Why? DEV PROD Saturday, April 12, 14

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@amjithr Solution  DEV PROD REGISTRY Saturday, April 12, 14

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@amjithr Website: www.docker.io IRC: freenode #docker google groups: docker-user Community Saturday, April 12, 14

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@amjithr THANK YOU! @amjithr Saturday, April 12, 14

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Questions? • Promo: http://newrelic.com/pycon • 30 days of Pro. • Free T-shirt. • In-depth data. Saturday, April 12, 14