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UID:submissions.supercomputing.org_SC25_sess197_ws_hpcsysp105@linklings.co
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SUMMARY:Modernizing HPC Configuration Management
DESCRIPTION:William Glick (University of Illinois at Urbana-Champaign)\n\n
 High-performance computing (HPC) environments require configuration manage
 ment systems to support diverse infrastructure and operational needs. At t
 he National Center for Supercomputing Applications (NCSA), we initiated a 
 multi-year transition from Puppet to Ansible to modernize our configuratio
 n management across our active HPC clusters. This paper presents the motiv
 ations behind the migration, including limitations encountered with Puppet
  and the advantages of Ansible’s agentless architecture and human-readable
  YAML-based configuration model.We detail our transition methodology, emph
 asizing cross-team collaboration, configuration parity, and low operationa
 l impact to production systems. Comparative insights highlight key differe
 nces in compliance enforcement, inventory visibility, automation workflows
 , secrets management, and custom module development. Additionally, we shar
 e implementation insights regarding community resource gaps, provisioning 
 integration, access constraints, and organizational buy-in.Our experience 
 underscores the importance of deliberate planning and collaborative toolse
 ts in infrastructure modernization.\n\nRecording: Livestreamed, Recorded\n
 \nRegistration Category: Technical Program Reg Pass, Workshop Reg Pass\n\n
 Session Chairs: Michael Hartman (Stanford University) and Jay Blair (Proct
 er and Gamble Company, ASRC)\n\n
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