Here are the slides from R.I. Pienaar's PuppetConf 2016 presentation called External Data in Puppet 4. Watch the videos at https://www.youtube.com/playlist?list=PLV86BgbREluVjwwt-9UL8u2Uy8xnzpIqa
2. R.I.Pienaar | rip@devco.net | http://devco.net | @ripienaar
Who am I?
• Puppet User since 0.22
• Really into external data
• Author facts.d, extlookup, Hiera, MCollective
• Consultant - DevOps, Automation,
Architect, Development
• Open Source @ github.com/ripienaar
• Volcane on IRC
7. R.I.Pienaar | rip@devco.net | http://devco.net | @ripienaar
Hierarchical Data
host1 host2 host3 host4 host5 host6
prod stage dev
dc1 dc2
Site wide common data
8. R.I.Pienaar | rip@devco.net | http://devco.net | @ripienaar
Hierarchical Data
host1 host2 host3 host4 host5 host6
prod stage dev
dc1 dc2
Site wide common data
9. R.I.Pienaar | rip@devco.net | http://devco.net | @ripienaar
Hierarchical Data
host1 host2 host3 host4 host5 host6
prod stage dev
dc1 dc2
Site wide common data
10. R.I.Pienaar | rip@devco.net | http://devco.net | @ripienaar
Hierarchical Data
host1 host2 host3 host4 host5 host6
prod stage dev
dc1 dc2
Site wide common data
$trusted[“certname”]
$environment
$facts[“dc”]
12. R.I.Pienaar | rip@devco.net | http://devco.net | @ripienaar
Lookup
• lookup() function replaces hiera*()
• Automatic Param Lookup more useful
• environment and module aware
• Great CLI
• YAML/JSON out of the box, more to come
• Data compatible with Hiera, cohabits with
Hiera
• Pluggable
40. R.I.Pienaar | rip@devco.net | http://devco.net | @ripienaar
Future
• Hiera deprecated
• No more site wide hiera, only environment
and modules
• Pluggable via functions in modules - native or
ruby, much much simpler than old backends
• lookup.yaml or lookup.conf