--- title: "STACKIT Server Update Management" description: "Centralized automation and scheduling of operating system patch routines for virtual Linux and Windows servers." scfAsset: category: "service" managed: true marketplaceUrl: "https://marketplace.stackit.cloud/en/products" tags: ["Patching", "Maintenance", "Compute", "Security", "Automation"] maintainers: - user: "alexander.gabert" source_url: "https://framework.stackit.cloud/architecture/assetcontainer/stackit/stackit-service-server-update-management/" source_file: "docs/architecture/assetcontainer/stackit/stackit-service-server-update-management.mdx" --- STACKIT Server Update Management automates and standardizes OS patch workflows across virtual machines directly via the portal, CLI, or API. ## Service Overview - **Risk Mitigation**: Closes security vulnerabilities quickly through automated patch compliance. - **Operational Efficiency**: Eliminates tedious manual interactive logins on single server instances. - **Auditable Operations**: Maintains detailed chronological logs of historical update executions. ## Technical Details - **Agent-Driven Execution**: Uses the STACKIT Server Agent for secure, local patch execution. - **Scheduling Engine**: Flexible calendar schedule creation via portal or RRULE syntax in the API. - **On-Demand Updates**: Manual "Update now" override button for critical zero-day emergency patches. - **Preconfigured RHEL Support**: Integrated with Red Hat Update Infrastructure (RHUI) on pay-as-you-go instances. ## Limitations & Constraints - **Agent Dependency**: The STACKIT Server Agent must remain active; stopping the agent breaks all patch routines. - **Reboot Behavior**: Patch cycles may trigger automatic VM reboots; maintenance windows must be planned carefully. - **Scope Limit**: Excludes unmanaged custom compute instances or non-supported guest OS distributions. - **API Deprecation**: Legacy MOSS endpoints are shut down; workflows require Server Update Management API v2.