2026 Modernized Policy
This legacy policy has been modernized to align with 2026 enterprise IT and cybersecurity standards, focusing heavily on Infrastructure as Code (IaC) peer-review requirements and automated drift detection.
IT Change Management Policy
Legal Notice & Non-Liability Disclaimer
Reference Models & Educational Examples Only: All policies, standards, frameworks, procedures, and architectural artifacts provided within this section are shared strictly as informational, educational, and reference examples demonstrating enterprise documentation engineering. Under no circumstances does Richard P. Dissell, RPDev, or affiliated contributors assume legal liability, fiduciary responsibility, regulatory accountability, or duty of care for their governance, implementation, omission, or operational impact. These examples do not constitute formal legal counsel, statutory advice, or certified regulatory compliance determinations. Any organization or individual adapting or referencing these materials must perform their own due diligence and consult licensed legal and cybersecurity compliance counsel.
1. Infrastructure as Code (IaC) and Peer-Review
Modern infrastructure is defined in code. Manual, “click-ops” changes in production environments are strictly prohibited outside of declared emergency scenarios.
- GitOps Workflow: All infrastructure changes (e.g., Terraform, Kubernetes manifests, cloud configurations) must be proposed via pull requests in version control.
- Mandatory Peer Review: No single engineer can alter production infrastructure. All IaC pull requests require at least one approving review from a designated peer or senior engineer.
- Automated Validation: Before merge, IaC changes undergo automated linting, security scanning (e.g., checking for overly permissive IAM roles), and pre-flight planning (e.g.,
terraform plan) to visualize impact.
2. Automated Drift Detection
To ensure the single source of truth remains in version control, the organization heavily relies on automated drift detection.
- Continuous Monitoring: Automated systems continuously monitor the live production environment against the desired state declared in the IaC repositories.
- Alerting on Drift: Any unauthorized deviation (drift) from the declared state immediately triggers a high-priority alert to the operations and security teams.
- Automated Reconciliation: Where configured, systems will automatically revert unauthorized manual changes, forcing all infrastructure modifications back through the formal GitOps change management pipeline.
3. Standard Change Control Procedures
- Change Advisory Board (CAB): While standard, automated IaC changes are pre-approved via peer review and automated testing, major architectural shifts still require CAB review for business impact and risk assessment.
- Rollback Procedures: All deployments, whether application or infrastructure, must have a clear, tested, and ideally automated rollback procedure.
4. Emergency Changes
Emergency changes (“break-glass” scenarios) are permitted when immediate action is required to resolve a critical outage or active security incident.
- If a manual change is made during an emergency, it must be documented immediately via an emergency change ticket.
- Within 24 hours of the incident’s resolution, the manual change must be retroactively codified into the IaC repositories to resolve drift and restore the GitOps source of truth.
🔗 Related Architecture & Knowledge Graph
- Production Systems: Validated in Builder Manager OCI Pipeline, Self-Hosted CI/CD Build Fleet.
- Governance & Compliance: Governed by Software Development Life Cycle, Information Security Policy.
- Technical Articles: Deep dive in Systems and Automation Architecture.
- Applied Research: Investigated in Codex Arcana.
- Master Credentials: Review core competencies on Curriculum Vitae & Master Resume.
- Digital Garden Hub: Return to the main Governance & Policies.