kapil thangavelu software developer, ubuntu...
TRANSCRIPT
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Kapil ThangaveluSoftware Developer, Ubuntu ServerCanonical Ltd.
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Juju is service orchestration.
Juju focuses on managing the service units you need to deliver a single solution, above simply configuring the
machines or cloud instances needed to run them.
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Juju is DevOps distilled.
Most of the service applications you want will be available in the Juju Charm Store...providing direct and free access to
a DevOps community-contributed collection of charms.
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Juju is intelligent.
Juju exposes re-usable service units and well-defined interfaces that allow you to quickly and organically adjust
and scale solutions without repeating yourself.
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Juju is easy.
There’s no need to learn a domain specific language (DSL) to use Juju or create formulas. You can be up and running with
your own formula in minutes.
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Charms● Reusable, codified best-practice● Deployment expertise● 60+ in code.launchpad.net/charm● Deployable using charm-tools package● Charm Store coming soon!
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Charms are simple
● Some yaml metadata
● A few scripts that run at the right time
● Written with whatever tool you want!
● Easy to read, easy to review
● https://code.launchpad.net/principia
juju: formulaname: mediawikirevision: 84summary: "website engine for collaborative work"description: | MediaWiki is a wiki engine (a program for creating a collaboratively edited website). It is designed to handle heavy websites containing library-like document collections, and supports user uploads of images/sounds, multilingual content, TOC autogeneration, ISBN links, etc.requires: db: interface: mysql slave: interface: mysql cache: interface: memcacheprovides: website: interface: http
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Relationships
● Various strategies
● - Assumptions in code
● - Assumptions in config mgmt.
● - Puppet – Exported Configs
● - Chef – Search
● - Juju – Fundamental component
http://upload.wikimedia.org/wikipedia/commons/d/d8/Wikimedia-servers-2010-12-28.svg
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Deployment Options
●EC2 API●Ubuntu Orchestra●Local Dev●??? Fully abstracted
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Example: Mediawiki
●juju deploy mysql wiki-db●juju deploy mediawiki demo-wiki
●juju deploy –constraints=”mem=32G” memcached wiki-cache
●juju deploy haproxy wiki-balancer
●Juju deploy reconnoiter monitoring
●juju add-unit wiki-cache
●juju add-unit demo-wiki
●juju add-relation wiki-db:db demo-wiki:db
●juju add-relation wiki-cache demo-wiki
●juju add-relation wiki-balancer:reverseproxy demo-wiki:website
●Juju add-relation monitoring demo-wiki
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Add slaves
●juju deploy mysql wiki-slave-db
●juju add-relation wiki-slave-db:slave wiki-db:master
●juju add-relation demo-wiki:slave-db wiki-slave-db:db
Result
wiki-db service wiki-cache servicewiki-slave-db service
wiki-balancer service
demo-wiki service
wiki-dblocal:mysql-98
wiki-db/0ec2-50-19-198-127.compute-1.amazonaws.com
demo-wikilocal:mediawiki-68
db
wiki-slave-dblocal:mysql-98
db
wiki-cachelocal:memcached-11
cache
wiki-balancerlocal:haproxy-14
reverseproxydemo-wiki/0
ec2-50-16-127-225.compute-1.amazonaws.comdemo-wiki/1ec2-50-16-149-161.compute-1.amazonaws.com
masterwiki-slave-db/0
ec2-50-17-77-63.compute-1.amazonaws.com wiki-cache/0ec2-184-72-144-240.compute-1.amazonaws.com
wiki-cache/1ec2-75-101-216-57.compute-1.amazonaws.com
wiki-balancer/0ec2-174-129-69-54.compute-1.amazonaws.com
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Architecture
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Enough Talk...Show Me the SOMETHING!
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Demo: Local Deployment
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Nice Trick...Show Me SOMETHING REAL!!!!
….SSH Fail
