Beyond Infrastructure Automation

We focus on our app code as the origin of business value. Anyone that's ever run apps in prod knows that no value is possible without the entire stack. DevOps has taught us to think about our app stacks holistically. It's time we shift our thinking to an app-centric view of the world. This talk will be an introduction to Habitat (https://www.habitat.sh/), the open source projects that let's use build, deploy, and manage applications. The automation is part of and moves with the application.

This talk was given at Configuration Management Camp Berlin - http://cfgmgmtcamp.eu/berlin-2016/

Transcript

1. Beyond Infrastructure
   Automation
   Nathen Harvey | @nathenharvey
   

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2. Nathen Harvey
   VP, Community Development at Chef
   Co-host of the Food Fight Show Podcast
   Occasional farmer – http://ei.chef.io
   Love eggs – http://eggs.chef.io
   #hugops – http://hugops.chef.io
   @nathenharvey
   nharvey@chef.io
   

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3. Configuration Management
   

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5. Modern Applications
   Source
   Code
   Repo
   Artifact
   Bare Metal
   Containers
   AMI
   VM
   Artifact
   Repo
   

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6. Immutable Infrastructure
   

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7. Dependencies!
   

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8. Packaging and Deployment
   

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9. Build
   Deploy
   Manage
   

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10. Starts with a plan
    

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11. Simple, native, and declaritive
    pkg_name=redis
    pkg_origin=core
    pkg_version=3.0.7
    pkg_license=('BSD')
    pkg_maintainer="The Habitat Maintainers "
    pkg_source=http://download.redis.io/releases/${pkg_name}-${pkg_version}.tar.gz
    pkg_shasum=b2a791c4ea3bb7268795c45c6321ea5abcc24457178373e6a6e3be6372737f23
    pkg_bin_dirs=(bin)
    pkg_build_deps=(core/make core/gcc)
    pkg_deps=(core/glibc)
    pkg_svc_run="bin/redis-server $pkg_svc_config_path/redis.config"
    pkg_expose=(6379)
    do_build() {
    make
    }
    plan.sh
    Low
    abstraction
    
    Complete
    dependencies
    
    Declare
    services
    
    Simple
    functions
    

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12. Clean room environment
    Safe by default
    Installs dependences
    Built in a studio
    

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13. Central location
    Publicly hosted
    Lightweight views
    Stored in a depot
    

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14. Easy pattern
    Shortcuts
    Increasing specificity
    Installed by hab
    

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15. Binaries and Config
    Metadata
    Side-by-side
    Packages on disk
    

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16. Docker
    ACI
    Mesosphere
    Post-process packages
    

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17. Run on any 64-bit Linux
    Easily support proprietary software
    

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18. Installs automatically
    Keeps things running
    Manages configuration
    Supervisor runs services
    

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19. Print config options
    12-Factor style
    Externally enforced
    Environment configuration
    

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20. More flexible than environment
    Universal location
    Externally enforced
    File configuration
    

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21. Supervisors form a ring
    Peers
    
    Service Groups
    
    Gossip
    
    Availability
    increases with
    scale
    

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22. Supervisors support topologies
    Dynamic
    configuration
    
    Service group
    level
    
    Uses the ring
    

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23. Supervisors provide update strategies
    Topology
    aware
    
    Tracks views in
    the depot
    
    Ideal for
    Continuous
    Delivery
    

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24. Supervisors provide a REST API
    External Actors
    
    Health and
    Status
    
    Supervisor
    Debugging
    

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25. Operable Applications
    • Isolated
    • Immutable
    • Configurable
    • Common interface for monitoring health
    • Rebuild from source
    • Common packaging
    • Runtime Independence
    

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26. Automation travels with the
    application
    
    Existing & Cloud Native Software
    Application Automation
    

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27. It’s all open source
    
    Apache License
    

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28. https://www.habitat.sh/community/
    

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