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Migrating to Puppet 5

Story of our migration to Puppet 5, as presented with Lander Van den Bulcke at the Open Source Camp on Puppet last week in Nuremberg

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The road to Puppet 5 6
Kris Buytaert &
Lander Van den Bulcke
@krisbuytaert
@landervdb
Kris BuytaertKris Buytaert
● I used to be a Dev,I used to be a Dev,
● Then Became an OpThen Became an Op
● 10+ years of puppet10+ years of puppet
● CTO and Open Source ConsultantCTO and Open Source Consultant
@@inuits.euinuits.eu
● Everything is a freaking DNS ProblemEverything is a freaking DNS Problem
● Evangelizing devopsEvangelizing devops
● Organiser of #devopsdays,Organiser of #devopsdays,
#cfgmgmtcamp, #loadays, ….#cfgmgmtcamp, #loadays, ….
Lander Van den BulckeLander Van den Bulcke
● OpsOps
● Open Source Consultant @ Inuits.euOpen Source Consultant @ Inuits.eu
● Mainly focusing on infrastructure as code,Mainly focusing on infrastructure as code,
automation, monitoringautomation, monitoring
Why Migrate to Puppet n+1Why Migrate to Puppet n+1
● 201X : nope , there is no business value201X : nope , there is no business value
Why Migrate to Puppet n+1Why Migrate to Puppet n+1
● 2015 : nope , there is no business value2015 : nope , there is no business value
•
& we need foreman& we need foreman
Why Migrate to Puppet n+1Why Migrate to Puppet n+1
● 2015 : nope , there is no business value2015 : nope , there is no business value
● 2016 :2016 :
•
nope, still no business value, but 3.X is EOL ,nope, still no business value, but 3.X is EOL ,
people are thinkingpeople are thinking
Ad

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Migrating to Puppet 5

  • 1. The road to Puppet 5 6 Kris Buytaert & Lander Van den Bulcke @krisbuytaert @landervdb
  • 2. Kris BuytaertKris Buytaert ● I used to be a Dev,I used to be a Dev, ● Then Became an OpThen Became an Op ● 10+ years of puppet10+ years of puppet ● CTO and Open Source ConsultantCTO and Open Source Consultant @@inuits.euinuits.eu ● Everything is a freaking DNS ProblemEverything is a freaking DNS Problem ● Evangelizing devopsEvangelizing devops ● Organiser of #devopsdays,Organiser of #devopsdays, #cfgmgmtcamp, #loadays, ….#cfgmgmtcamp, #loadays, ….
  • 3. Lander Van den BulckeLander Van den Bulcke ● OpsOps ● Open Source Consultant @ Inuits.euOpen Source Consultant @ Inuits.eu ● Mainly focusing on infrastructure as code,Mainly focusing on infrastructure as code, automation, monitoringautomation, monitoring
  • 4. Why Migrate to Puppet n+1Why Migrate to Puppet n+1 ● 201X : nope , there is no business value201X : nope , there is no business value
  • 5. Why Migrate to Puppet n+1Why Migrate to Puppet n+1 ● 2015 : nope , there is no business value2015 : nope , there is no business value • & we need foreman& we need foreman
  • 6. Why Migrate to Puppet n+1Why Migrate to Puppet n+1 ● 2015 : nope , there is no business value2015 : nope , there is no business value ● 2016 :2016 : • nope, still no business value, but 3.X is EOL ,nope, still no business value, but 3.X is EOL , people are thinkingpeople are thinking
  • 7. Why Migrate to Puppet 4Why Migrate to Puppet 4 ● 2015 : nope , there is no business value2015 : nope , there is no business value ● 2016 :2016 : • nope, still no business value, but 3.X is EOL ,nope, still no business value, but 3.X is EOL , people are thinkingpeople are thinking • 1 customer considering1 customer considering • 0 customers actually migrating0 customers actually migrating
  • 8. Why Migrate to Puppet 4Why Migrate to Puppet 4 ● 2016 :2016 : • Vox Pupuli movesVox Pupuli moves forwardforward • @daenny writes@daenny writes “Goodbye, Puppet”“Goodbye, Puppet” Puppet consideredPuppet considered Feature CompleteFeature Complete
  • 9. Why Migrate to Puppet 5Why Migrate to Puppet 5 ● 2017 :2017 : • fsck .. upstream breaks on Puppet 3,fsck .. upstream breaks on Puppet 3, • Both puppetlabs and VoxBoth puppetlabs and Vox • We’re pinning oour versionsWe’re pinning oour versions
  • 10. Why Migrate to Puppet 5Why Migrate to Puppet 5 ● 2017 :2017 : • fsck .. upstream breaks on Puppet 3,fsck .. upstream breaks on Puppet 3, • Both puppetlabs and VoxBoth puppetlabs and Vox • We’re pinning our versionsWe’re pinning our versions • Hmm.. this Choria thing looks coolHmm.. this Choria thing looks cool • Vault + Hiera integrationVault + Hiera integration
  • 11. Why Migrate to Puppet 5Why Migrate to Puppet 5 ● 2015 : nope , there is no business value2015 : nope , there is no business value ● 2016 : nope2016 : nope ● 2017 : nope2017 : nope ● 2018 : hmm. We need support for XYZ and2018 : hmm. We need support for XYZ and that’s in the upstream module in a puppet 5that’s in the upstream module in a puppet 5 version.version. Let’s migrate...Let’s migrate...
  • 12. State in 2018-09State in 2018-09 ● 75% of our consulting customer base is still on75% of our consulting customer base is still on 3.X with no intent of migrating their code base3.X with no intent of migrating their code base ● New projects are in Puppet 5New projects are in Puppet 5 ● Maintaining 2 stacks.Maintaining 2 stacks. ● Some have moved to AnsibleSome have moved to Ansible ● This hot new Container thingie .. K8sThis hot new Container thingie .. K8s
  • 13. Our internal EcoSystemOur internal EcoSystem ● 20+ platforms20+ platforms ● (dev)/(uat)/prod(a,b)(dev)/(uat)/prod(a,b) ● +/- 60 puppet environments+/- 60 puppet environments ● Continuous Delivery of IaC !!!Continuous Delivery of IaC !!! ● Pipeline as CodePipeline as Code ● 3.8 fte3.8 fte
  • 14. Our Trees:Our Trees: ├──├── environment.confenvironment.conf ├──├── manifestsmanifests │   ├──│   ├── nodesnodes │   └──│   └── site.ppsite.pp ├──├── modulesmodules    ├──   ├── internalinternal     └──    └── upstreamupstream Git submodules for release managementGit submodules for release management
  • 18. 2 years earlier2 years earlier ● puppet-tree-validate runs in a containerpuppet-tree-validate runs in a container ● Multiple versions get testedMultiple versions get tested ● Non breaking on the not used versionNon breaking on the not used version ● Testing on n, n+1 n+2Testing on n, n+1 n+2
  • 19. Spinning up a P5 stackSpinning up a P5 stack ● Fresh Puppet MasterFresh Puppet Master • CA,CA, • ForemanForeman • PuppetDBPuppetDB • ChoriaChoria
  • 20. Everything is aEverything is a Freaking DNS problemFreaking DNS problem Fun with srv recordsFun with srv records
  • 21. A new PuppetDB ?A new PuppetDB ? ● But we heavily use(d) Exported ResourcesBut we heavily use(d) Exported Resources • IcingaIcinga • Reverse proxiesReverse proxies • Database CreationsDatabase Creations
  • 22. Making Bernd HappyMaking Bernd Happy ● Puppet 5 stack => Icinga 2 migrationPuppet 5 stack => Icinga 2 migration
  • 23. Clean TreeClean Tree ● For module in modules/upstream/For module in modules/upstream/ s/currenthash/master/g;s/currenthash/master/g; ● Break all the thingsBreak all the things • Bug in sudo : %%group vs %groupBug in sudo : %%group vs %group • ...... •
  • 24. Naming ThingsNaming Things ● How do you call the puppet5 version of theHow do you call the puppet5 version of the environment currently known asenvironment currently known as mgmtdev,mgmtprod ?mgmtdev,mgmtprod ? mgmtdev5,mgmtprod5 ?mgmtdev5,mgmtprod5 ?
  • 25. Puppet DB APIPuppet DB API ● Inventory views are based on puppetdbInventory views are based on puppetdb
  • 26. Puppet DB APIPuppet DB API ● Inventory views are based on puppetdbInventory views are based on puppetdb
  • 27. MVPMVP ● WebWeb ● DbDb ● LbLb ● Icinga2Icinga2
  • 28. Hiera + VaultHiera + Vault ● We reverted our integration in P3 becaus it wasWe reverted our integration in P3 becaus it was under performing (blocking)under performing (blocking) ● Jruby 9K issuesJruby 9K issues ● Performance issues still not solved :(Performance issues still not solved :(
  • 29. Hiera + VaultHiera + Vault Source: Joe Pinsonault – https://tickets.puppetlabs.com/browse/SERVER-1864
  • 30. Hiera + VaultHiera + Vault Source: Joe Pinsonault – https://tickets.puppetlabs.com/browse/SERVER-1864
  • 31. Current stateCurrent state ● All new Roles/Profles we build are P5 onlyAll new Roles/Profles we build are P5 only ● Some stacks are mixed P5 , P3Some stacks are mixed P5 , P3 ● We’re not actually migrating yet.We’re not actually migrating yet. ● We’re onboarding new stacks in the newWe’re onboarding new stacks in the new ecosystemecosystem
  • 32. Next StepsNext Steps ● Take Recent stack that ft in the MVP rolesTake Recent stack that ft in the MVP roles • Migrate them to P5Migrate them to P5 ● No efort planned on EL6 puppet codeNo efort planned on EL6 puppet code ● Rebuild EL6 stacks on EL{7,8} with newRebuild EL6 stacks on EL{7,8} with new Roles/ProflesRoles/Profles
  • 33. One more thingOne more thing Confg Management Camp 2019Confg Management Camp 2019 4-6 february 20194-6 february 2019 Gent , BelgiumGent , Belgium https://cfp.cfgmgmtcamp.be/https://cfp.cfgmgmtcamp.be/
  • 34. ContactContact Kris Buytaert Kris.Buytaert@inuits.euKris Buytaert Kris.Buytaert@inuits.eu Further ReadingFurther Reading @krisbuytaert@krisbuytaert http://www.krisbuytaert.be/blog/http://www.krisbuytaert.be/blog/ http://www.inuits.eu/http://www.inuits.eu/ Inuits.euInuits.eu Essensteenweg 31Essensteenweg 31 BrasschaatBrasschaat BelgiumBelgium 891.514.231891.514.231 +32 475 961221+32 475 961221