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Configuration Management Puppet Labs Gareth Rushgrove For future infrastructure

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@garethr

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Gareth Rushgrove

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Gareth Rushgrove

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What is configuration management?

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Any input to your infrastructure is configuration Gareth Rushgrove

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Configuration management is about managing all of those inputs over time Gareth Rushgrove

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Configuration management is about managing all of those inputs over time Gareth Rushgrove

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This talk

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A little history Gareth Rushgrove

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Emerging patterns Gareth Rushgrove

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Immutable infrastructure Infrastructure APIs Autonomous systems Simpler hosts Gareth Rushgrove

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Immutable infrastructure Infrastructure APIs Autonomous systems Simpler hosts Gareth Rushgrove

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Immutable infrastructure Infrastructure APIs Autonomous systems Simpler hosts Gareth Rushgrove

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Immutable infrastructure Infrastructure APIs Autonomous systems Simpler hosts Gareth Rushgrove

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Future infrastructure as code Gareth Rushgrove

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A little history

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1950s research, 1960s 480 series, 1991 MIL- HDBK-61, 1998 ANSI- EIA-649 Gareth Rushgrove

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Military Handbook Configuration Management Guidance MIL-HDBK-61B Gareth Rushgrove

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Identification Control Status accounting Verification and audit Gareth Rushgrove

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National Consensus Standard for Configuration Management EIA-649 Gareth Rushgrove

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Configuration management verifies that a system is identified and documented in sufficient detail Gareth Rushgrove

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Configuration management verifies that a system performs as intended Gareth Rushgrove

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Service management, ITIL, ISO 20000 Gareth Rushgrove

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Infrastructure as code Gareth Rushgrove

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Gareth Rushgrove

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Immutable infrastructure

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Build once, run many times Gareth Rushgrove

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Amazon Machine Images Gareth Rushgrove

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End-to-end automation to avoid the golden image problem Gareth Rushgrove

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Gareth Rushgrove

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Containers Gareth Rushgrove

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Gareth Rushgrove

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Docker as the user interface Gareth Rushgrove

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How immutable are your docker containers? Gareth Rushgrove

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Infrastructure with APIs

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Infrastructure as a service Gareth Rushgrove

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Gareth Rushgrove

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Gareth Rushgrove

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Gareth Rushgrove

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Platform as a service Gareth Rushgrove

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Gareth Rushgrove

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Gareth Rushgrove

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Gareth Rushgrove

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OSv Gareth Rushgrove

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Gareth Rushgrove

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Not just compute, but network and storage too Gareth Rushgrove

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Gareth Rushgrove

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Not just *nix Gareth Rushgrove

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Gareth Rushgrove

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Configuration at a distance Gareth Rushgrove

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Configuring autonomous systems

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We’re increasingly managing higher level systems Gareth Rushgrove

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If servers are cattle not pets, we need to talk about fields and farms Gareth Rushgrove

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Autoscaling groups Gareth Rushgrove

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Gareth Rushgrove

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Gareth Rushgrove

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Simpler hosts

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Combinatorial package explosion Gareth Rushgrove

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Gareth Rushgrove

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Gareth Rushgrove OSTree

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Gareth Rushgrove

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Gareth Rushgrove

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Gareth Rushgrove

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CoreOS is a firmware for running containers Gareth Rushgrove John Vincent - http://blog.lusis.org/blog/2014/11/21/a-few-things/

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Moving configuration from hosts to the network Gareth Rushgrove

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Etcd, Consul, Zookeeper Gareth Rushgrove

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Future infrastructure as code

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From: Host centric Localised Executable for integration Gareth Rushgrove

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To: Cluster centric Distributed HTTP for integration Gareth Rushgrove

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Going from Puppet to etcd Gareth Rushgrove

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Gareth Rushgrove

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Where similar interfaces exist we can provide abstractions Gareth Rushgrove

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Gareth Rushgrove

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Gareth Rushgrove garethr/key_value_config

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Going from etcd to Puppet with Hiera Gareth Rushgrove

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Gareth Rushgrove

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Gareth Rushgrove garethr/hiera-etcd

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Installing systems Gareth Rushgrove

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Gareth Rushgrove

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Gareth Rushgrove

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More interestingly, using systems via APIs Gareth Rushgrove

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Gareth Rushgrove

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garethr/garethr-docker Gareth Rushgrove

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Gareth Rushgrove

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Gareth Rushgrove

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puppetlabs/puppetlabs-aws Gareth Rushgrove

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Gareth Rushgrove

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garethr/digitalocean Gareth Rushgrove

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Gareth Rushgrove

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Gareth Rushgrove I want a pony

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Managing an autoscaling CoreOS/Atomic cluster in AWS… Gareth Rushgrove

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…with configuration in etcd/consul… Gareth Rushgrove

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…with the network in VPC /Weave… Gareth Rushgrove

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…with docker containers arranged by Kubernetes… Gareth Rushgrove

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All from the Puppet DSL Gareth Rushgrove

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Conclusions

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The future is already here — it's just not very evenly distributed. Gareth Rushgrove William Gibson

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Manage. Not just provision Gareth Rushgrove

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Gareth Rushgrove

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Questions? And thanks for listening