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Implementing Continuous Delivery in Chef

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Why am I here?

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Opinionated

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and yet…

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Options

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@thommay

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No content

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Why Continuous Delivery?

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Continuous is a side effect

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Consistency

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Correctness

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Reproducibility

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Repeatability

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Why Chef?

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Availability

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Has all the bits we need

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Let’s get started

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Out of the box

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Production quality?

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The deploy resource

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git clone …

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Callbacks

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Duplicates work

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Reproducible?

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Application cookbooks

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:(

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Assumptions galore

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More duplicate work

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Slow

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Recap

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Pipelining

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CD can’t work in isolation

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Continuous Integration

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build once

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test what you deploy

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Packages

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(I don’t care about Windows)

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leverage your OS

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easy to get a repo up

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fpm

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but…

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atomic

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config files

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Something Custom

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“artiballs”

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package-lite

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tarball

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chef-solo

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pretty similar to omnibus

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“deployable”

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a manifest file

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some number of: artifacts

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some number of: config file templates

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generate resources

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Honourable mentions

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docker/lmctfy chef-metal decker Flynn ProjectAtomic Mesos/Marathon

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Recap

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No content

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baton

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https://github.com/digital-science/baton

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amqp messaging

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not mcollective

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build agents trivially

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Chef Push Jobs

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require on-premise enterprise chef

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I don’t have one

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looks nifty though

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AutoScaling Groups

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“a/b” deploys

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add new ASG

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grow new one

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shrink old one

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Bamboo

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deploy tasks

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Recap

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Conclusions

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Any Questions? Images: Paula Marina - Pipeline! https://flic.kr/p/4V3wLC Kihong Kim - Orchestra Miniature https://flic.kr/p/dM32mX