Puppet Learning VM Setup Guide: Import, Networking, SSH Access, and Troubleshooting
Learn how to set up the Puppet Learning VM from the OVA download through first login, networking, and web access. This revised guide also consolidates the most useful troubleshooting fixes from the original courseware.
Install Jenkins with Docker: Persistent Setup, Port Mapping, and Logs
Learn how to run Jenkins in Docker with correct port mapping, persistent storage, and operational commands. This updated guide keeps the original workflow but adds modern, production-minded practices.
Install Atlassian Jira with Docker: Quick Start, Persistent Volumes, and Deployment Checks
This guide shows how to run Jira in Docker using the original one-line command, then improve it with persistent storage and repeatable deployment steps. It also includes a workflow diagram, command examples, and practical validation checks.
Install Sonatype Nexus with Docker: RM2/RM3 Commands, Validation Steps, and Important Caveats
A structured, production-minded rewrite of the original 2016 Docker setup for Sonatype Nexus Repository Manager 2 and 3. Includes command examples, a workflow diagram, and clear warnings about outdated tags/endpoints.
DevOps Concepts and Process Training: Objectives, Workflow, Tools, and Prerequisites
A practical, engineer-focused guide to DevOps foundation training. Learn core objectives, delivery workflow, toolchain options, prerequisites, and starter CI/CD lab commands.
Build and Release Management in the SDLC: SCM Concepts, Workflow, and Practical Examples
This guide explains how build and release management fits into the software development lifecycle and how SCM keeps delivery reproducible. It covers core concepts, a practical workflow, and example Git and CI pipeline patterns.
Host Your Own NuGet Feed: Local Source vs NuGet.Server vs NuGetGallery
Learn how to host a private NuGet feed using three practical approaches: a local folder source, NuGet.Server, and NuGetGallery. This revised guide includes setup steps, command examples, and a workflow diagram to help you choose the right model.
Install and Configure Gerrit on CentOS and Ubuntu (MySQL + Apache Reverse Proxy)
A practical, step-by-step guide to installing Gerrit for code review on CentOS/RHEL and Ubuntu/Debian. Includes package command comparisons, setup workflow, Apache proxy configuration, and verification checks.
Publish NuGet Packages to NuGet.org: CLI Steps, Workflow, and CI Example
Learn how to publish a NuGet package to NuGet.org using either nuget.exe or the dotnet CLI. This revised guide includes a workflow diagram, command comparison, and a CI-friendly example.
How to Create NuGet Packages with nuget.exe (Assembly, .nuspec, and .csproj Methods)
Learn three practical ways to build NuGet packages using nuget.exe: from an existing assembly, from a convention-based folder layout, or directly from a Visual Studio project. This guide includes commands, folder conventions, token behavior, and common pitfalls.
AWS CLI Credentials Setup: Configure, Verify, and Secure Access
Learn how to configure AWS credentials with the AWS CLI, verify your identity, and understand where credentials are stored. This updated guide also compares profiles, environment variables, and role-based access.
Provision an AWS EC2 Instance with Chef (Legacy ChefDK Workflow)
A practical, step-by-step walkthrough for provisioning an AWS EC2 VM using the classic ChefDK and chef-provisioning approach. Includes workflow, commands, recipe examples, and validation checks for legacy environments.
How to Install ChefDK on RHEL, Ubuntu, macOS, and Windows (Legacy-Friendly Guide)
Learn a practical, cross-platform process to install ChefDK and verify it correctly on RHEL/CentOS, Ubuntu, macOS, and Windows. This guide also helps you decide when ChefDK is still appropriate versus Chef Workstation.
Jira on Linux: Installation and Configuration with Safer Service and Firewall Setup
Learn how to install Jira on Linux using Atlassian’s installer, manage it as a service, and expose port 8080 safely. This revision keeps the original references but updates the process for clearer, production-minded operations.
Jenkins Email-ext: Add Full or Regex-Filtered Build Logs to Email Body
Learn how to include Jenkins build logs directly in notification emails using email-ext tokens. This revised guide covers full-log and regex-filtered approaches for freestyle jobs and Pipeline templates.
Foodcritic for Chef Cookbooks: Practical Linting and Jenkins CI for Legacy Pipelines
Foodcritic helps you statically lint Chef cookbooks for style, correctness, and common anti-patterns before convergence fails in production. This guide shows how to run it locally, wire it into Jenkins, and enforce fail policies that teams will actually use.
Jenkins Backup and Restore Runbook: ThinBackup, Filesystem Archives, and Recovery Steps
A practical Jenkins backup and restore guide for DevOps teams, covering what to back up, strategy trade-offs, and step-by-step command examples. Includes a workflow diagram and a recovery checklist you can operationalize.
Jenkins Email-ext: Include Build Logs in Email Body (Full Log or Regex-Filtered)
Learn how to configure Jenkins Email Extension tokens to send either the full build log or targeted regex matches directly in the email body. This guide covers practical token examples, workflow, and pitfalls to avoid noisy or oversized alerts.
Fix Jenkins java.lang.OutOfMemoryError: PermGen Space (Controller, Agents, and Build Tools)
Jenkins PermGen errors are usually caused by JVM memory limits set in the wrong place. This guide shows where to configure memory flags for controllers, agents, and build tools, plus how to handle Java 8+ where PermGen was replaced.
Continuous Inspection Pattern: A Practical Adoption Guide for DevOps Teams
Continuous inspection makes code quality and security checks continuous, visible, and enforceable across the delivery lifecycle. This guide shows how to select tools, tune verifications, wire CI checks, and enforce critical rules at commit time.
How to Integrate GitHub with Eclipse (EGit): Setup, Authentication, and Daily Workflow
Learn a clean, modern way to connect GitHub and Eclipse using EGit, choose between HTTPS+PAT or SSH authentication, and run an efficient commit/push workflow. This guide replaces the original teaser post with practical, step-by-step instructions.
Perforce 2014 Server Upgrade Runbook: Verify, Checkpoint, Restore, and Validate
This guide converts the original Perforce 2014 upgrade notes into a practical runbook for production admins. It covers pre-checks, checkpoint-based recovery, post-upgrade verification, and migration cautions.
Perforce Server Disk Cleanup and Repository Size Management: A Safe, Practical Playbook
Running out of storage on a Perforce (Helix Core) server can quickly become an availability risk. This guide shows a safer cleanup workflow: measure space first, compare options, then execute changes with minimal operational risk.
Jenkins Command-Line Authentication and Job Triggers with cURL and Wget
Learn practical ways to authenticate scripted requests to Jenkins and trigger jobs from the command line using cURL and wget. This revision also covers CSRF crumb handling, version caveats, and troubleshooting.
How to Assign Computer Startup Scripts with Group Policy (Local and Domain GPO)
Learn the exact steps to assign computer startup scripts through Group Policy, including where to configure them, how script order works, and how to validate deployment. This guide expands the original quick tip into a practical, production-ready reference.
BuildForge bfexport: How to Export Projects and Snapshots to XML
This guide explains how to use BuildForge’s bfexport command to list projects and export project data to XML. It includes option references, workflow, and practical command examples.
SCM Versioning Done Right: Four-Part File Versions, Build Numbers, and Safer Installers
Versioning in Software Configuration Management is how teams trace binaries to source, reproduce builds, and ship safer upgrades. This guide turns the original notes into a practical, modern workflow with version structure, CI stamping, and installer safeguards.
Executing External Commands in Perl: system, exec, backticks, and open Explained
Perl provides multiple ways to run external commands, and each one behaves differently. This guide shows when to use system, exec, backticks, or open, with safe patterns for output capture and exit-code handling.
Gitflow Branching Model: Practical Guide to Feature, Release, and Hotfix Branches
Learn how the classic Gitflow model organizes development with long-lived and short-lived branches. This guide covers branch rules, workflow, and production-ready Git command examples.
Perforce Depot Migration Between Servers Without Losing History or Changelists
A practical migration workflow for moving Perforce depot data between servers while preserving history and changelist continuity. Includes a decision table, migration flow diagram, and command examples for backup, cleanup, and validation.