Infrastructure automation.

PowerShell for enterprise administration

PowerShell is the primary automation language for Windows and Active Directory work.

• Query and export computer and user data from Active Directory.
• Normalize input files and enrich records with logon names, email, title, and department.
• Automate group membership, local-account removal, firewall configuration, domain operations, and server inventory.
• Install prerequisites for System Center products and validate server readiness.
• Collect reboot history, health information, and deployment results from remote systems.

GitOps as operational automation

The Kubernetes environment treats Git as the desired state. Argo CD reconciles applications, reports drift, retries failures, prunes removed resources, and provides a visible deployment history.

• App-of-apps repository structure.
• Kustomize-rendered application manifests.
• Automated image digest updates for selected workloads.
• Sealed Secrets for encrypted secret workflows.
• Validation, commit, push, sync, rollout, and smoke tests packaged into complete Bash scripts.

Infrastructure as code

Terraform, Ansible, and Packer are used in the home lab to explore repeatable virtual-machine provisioning, configuration, and image creation. The objective is to move from manually assembled systems toward reproducible environments with clear inputs and versioned changes.

Design principles

• Safe defaults: scripts stop on errors, validate prerequisites, and avoid overwriting unknown state.
• Idempotence: repeated execution should converge or exit cleanly.
• Complete deliverables: full scripts and configuration files reduce copy-and-paste mistakes.
• Evidence: every automation ends with verification output rather than assuming success.
• Rollback: Git history and declarative state make changes reviewable and reversible.