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On the Journey to Puppeteering
Puppet noob, but a seasoned sysadmin

●   UNIX internals developer (compiler, packaging,
    drivers)
●   Software project manager and sysadmin
●   Networking: ThickNet Ethernet Coax
●   Enterprise network design, manage, security
●   etc. ...
On the Journey to Config Automation

●   Why config management?
       –   small operation
       –   scripts and version control (mostly) just fine
       –   what are the issues we're trying to solve?
Why Puppet

●   Standardization
●   Community Support
●   Puppet Labs' Apparent Commitment to Free
    Software and the Open Source model
●   Architecture
Bumps in the Road


●   Community Puppet
       –   Puppet DSL: alien language (Rails déjà vu)
       –   frequent Puppet releases caused breakage
       –   packaging
Fixing Potholes


●   Puppet Enterprise
        –   packaging: solved
        –   update breakage: solved
        –   DSL: not solved, but getting used to it
Intro to Puppet Modules


●   What's to Like
        –   consistent view
        –   consistent interface
        –   separation of data and logic
Intro to Puppet Modules


●   What's to Despise
        –   bugs
        –   useless error messages
        –   pe_accounts: huh?
Puppet Mastery


●   Goal: a series of modules to manage ISP
    services (NTP, SNMP, postfix, dovecot,
    RADIUS, etc.)
        –   stand-alone modules?
        –   how to integrate? e.g., /etc/sysconfig/iptables:
              stand-alone? as part of another module?

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Beginner's Thoughts on Making Puppet Modules - David Klann - PuppetCamp Chicago '12

  • 1. On the Journey to Puppeteering Puppet noob, but a seasoned sysadmin ● UNIX internals developer (compiler, packaging, drivers) ● Software project manager and sysadmin ● Networking: ThickNet Ethernet Coax ● Enterprise network design, manage, security ● etc. ...
  • 2. On the Journey to Config Automation ● Why config management? – small operation – scripts and version control (mostly) just fine – what are the issues we're trying to solve?
  • 3. Why Puppet ● Standardization ● Community Support ● Puppet Labs' Apparent Commitment to Free Software and the Open Source model ● Architecture
  • 4. Bumps in the Road ● Community Puppet – Puppet DSL: alien language (Rails déjà vu) – frequent Puppet releases caused breakage – packaging
  • 5. Fixing Potholes ● Puppet Enterprise – packaging: solved – update breakage: solved – DSL: not solved, but getting used to it
  • 6. Intro to Puppet Modules ● What's to Like – consistent view – consistent interface – separation of data and logic
  • 7. Intro to Puppet Modules ● What's to Despise – bugs – useless error messages – pe_accounts: huh?
  • 8. Puppet Mastery ● Goal: a series of modules to manage ISP services (NTP, SNMP, postfix, dovecot, RADIUS, etc.) – stand-alone modules? – how to integrate? e.g., /etc/sysconfig/iptables: stand-alone? as part of another module?