SUNET/puppet-sunet
Feb 2025 – Apr 2025
3 Months active
Languages Used
ErbPuppetShellerbERBPHP
Technical Skills
Configuration ManagementDevOpsInfrastructure as CodeSystem AdministrationTLS/SSLXRootD
Lars Delhage
PROFILE
Lars Delhage
Worked on the SUNET/puppet-sunet repository to deliver secure, reliable infrastructure for mail and data services. Built XRootD security hardening and TLS certificate management, implementing encryption, authentication, and certificate lifecycle automation using Puppet and Shell scripting. Developed Dovecot replication setup, configuring service limits and socket listeners to enable scalable, production-ready mail replication. Enhanced webmail collaboration by integrating Kolab Roundcube plugins and improved mail filtering through fixes to sieve authentication and synchronization. Addressed operational stability by increasing memory limits for Dovecot services. Demonstrated expertise in configuration management, DevOps, and system administration, with a focus on automation and maintainability.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
15Total
Bugs
3
Commits
15
Features
3
Lines of code
222
Activity Months3
Your Network
43 peopleWork History
April 2025
7 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for SUNET/puppet-sunet focusing on reliability, collaboration features, and memory stability. Delivered key mail/webmail improvements and plugins, reducing error rates and operational risk while enabling better user collaboration and automation. Key deliverables: - Sieve authentication fix for Roundcube: configured managesieve host, authentication type, credentials, and removed SSL requirement for sieve in Dovecot to enable proper mail filter management. - Kolab Roundcube plugins integration: installed calendar, libkolab, and libcalendaring plugins with idempotent/conditional installation to avoid duplicates, enhancing collaboration features in webmail. - Dovecot sieve synchronization reliability: enabled maildir_stat_dirs to ensure correct directory stats and reliable sieve synchronization. - Dovecot doveadm memory stability: increased virtual memory limit to prevent potential OOM for the doveadm service. Overall impact: - Improved mail filtering reliability, better webmail collaboration features, and enhanced service stability, reducing downtime risks and support load.
7 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for SUNET/puppet-sunet focusing on reliability, collaboration features, and memory stability. Delivered key mail/webmail improvements and plugins, reducing error rates and operational risk while enabling better user collaboration and automation. Key deliverables: - Sieve authentication fix for Roundcube: configured managesieve host, authentication type, credentials, and removed SSL requirement for sieve in Dovecot to enable proper mail filter management. - Kolab Roundcube plugins integration: installed calendar, libkolab, and libcalendaring plugins with idempotent/conditional installation to avoid duplicates, enhancing collaboration features in webmail. - Dovecot sieve synchronization reliability: enabled maildir_stat_dirs to ensure correct directory stats and reliable sieve synchronization. - Dovecot doveadm memory stability: increased virtual memory limit to prevent potential OOM for the doveadm service. Overall impact: - Improved mail filtering reliability, better webmail collaboration features, and enhanced service stability, reducing downtime risks and support load.
April 2025
March 2025
1 Commits • 1 Features
Mar 1, 2025Concise monthly summary for 2025-03 emphasizing delivered capabilities, minimal issues, and business impact in SUNET/puppet-sunet.
March 2025
1 Commits • 1 Features
Mar 1, 2025Concise monthly summary for 2025-03 emphasizing delivered capabilities, minimal issues, and business impact in SUNET/puppet-sunet.
February 2025
7 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for SUNET/puppet-sunet: Delivered Xrootd Security Hardening and TLS Certificate Management feature including TLS encryption, authentication/authorization, and certificate lifecycle management. Implemented host TLS certificates, Xrootd authentication, and CA cert link/name generation. Fixed key deployment issues (library names, paths, filenames) to stabilize builds and deployments. Result: improved data protection, access control, and deployment reliability, with measurable uplift in security posture and maintainability.
7 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for SUNET/puppet-sunet: Delivered Xrootd Security Hardening and TLS Certificate Management feature including TLS encryption, authentication/authorization, and certificate lifecycle management. Implemented host TLS certificates, Xrootd authentication, and CA cert link/name generation. Fixed key deployment issues (library names, paths, filenames) to stabilize builds and deployments. Result: improved data protection, access control, and deployment reliability, with measurable uplift in security posture and maintainability.
February 2025
Activity
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Quality Metrics
Correctness85.4%
Maintainability88.0%
Architecture82.8%
Performance72.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
ERBErbPHPPuppetShellerb
Technical Skills
AuthenticationConfiguration ManagementDevOpsEmail Server ConfigurationInfrastructure as CodeMail FilteringServer AdministrationSystem AdministrationTLS/SSLXRootD
Repositories Contributed To
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