LOW
The severity is rated LOW due to the advisory focusing on operational challenges rather than a direct security vulnerability. However, these issues can indirectly affect system stability and performance, leading to potential exploitation if not properly addressed.

This advisory addresses several issues encountered during the deployment of Rundeck in a homelab environment, focusing on initial missteps and challenges. The primary issue discussed is deploying Rundeck within OKD (OpenShift Container Platform), which resulted in significant operational difficulties including permission problems and missing essential tools inside containerized environments. This led to poor performance and increased maintenance overhead. Transitioning the deployment from a Kubernetes-based setup to a standalone Rocky Linux 9 VM resolved these issues, demonstrating that for homelab deployments, traditional VMs are more suitable than cloud-native platforms like OKD. Another critical point is the use of Rundeck's default H2 database, which can limit scalability and performance in production-like environments.

Affected Systems
  • Rundeck
  • OKD (OpenShift Container Platform)
  • Rocky Linux
Affected Versions: All versions of Rundeck deployed in OKD or other Kubernetes-based environments; Rocky Linux version 9 specifically mentioned
Remediation
  • Move Rundeck deployment from Kubernetes to a standalone VM. For example, deploy on a clean Rocky Linux 9 instance.
  • Replace the default H2 database with PostgreSQL for better performance and scalability. Ensure PostgreSQL is configured securely by setting up proper user roles and permissions using commands like 'CREATE ROLE' and 'GRANT'.
  • Ensure all necessary tools are installed in the Rundeck environment, especially if running within a containerized setup.
Stack Impact

The deployment challenges discussed have minimal direct impact on common homelab stacks unless they involve Kubernetes or similar platforms for deploying Rundeck. For users with traditional VM setups like Rocky Linux 9, the impact is negligible.

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