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103 lines
5.1 KiB
Markdown
103 lines
5.1 KiB
Markdown
# NFR-6: Deployability & Maintainability
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## 1. Overview
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This document outlines the requirements for ensuring that the encrypted file storage system is easy to deploy, configure, and maintain in diverse environments. It focuses on strategies such as containerization, configuration automation, and deterministic testing environments to simplify operations and updates, while ensuring consistent behavior across different deployment scenarios.
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## 2. Objectives & Scope
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### 2.1 Objectives
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- **Simplified Deployment:**
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Ensure that the system can be deployed with minimal manual configuration using standardized deployment packages.
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- **Ease of Maintenance:**
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Provide robust mechanisms for system updates, monitoring, and troubleshooting that reduce downtime and intervention effort.
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- **Deterministic Testing:**
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Enable deterministic simulation of deployment scenarios (including network and disk failures) to ensure behavior consistency and ease of reproducibility.
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- **Modular and Extensible Architecture:**
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Ensure that system components are modular to facilitate easy updates and integration of new features.
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### 2.2 Scope
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- Covers the full lifecycle of deployment: configuration, installation, operation, and maintenance.
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- Encompasses deployment on self-hosted servers, containerized environments (e.g., Docker), and orchestration platforms.
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- Includes integration with automated configuration management and deterministic simulation frameworks.
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## 3. Detailed Requirements
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### 3.1 Containerization and Standardized Deployment
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- **Containerization:**
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- Package all components as Docker containers to ensure a consistent runtime environment.
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- Provide container orchestration templates (e.g., Kubernetes manifests) for scalable deployments.
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- **Configuration Management:**
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- Develop configuration templates with support for environment variables and secure secrets management.
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- Automate deployment procedures via scripts or configuration management tools to minimize manual intervention.
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### 3.2 Maintenance and Updatability
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- **Graceful Updates:**
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- Implement rolling update mechanisms to allow seamless system patching without significant downtime.
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- Ensure that updates are backward compatible or provide clear migration paths.
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- **Monitoring and Diagnostics:**
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- Integrate diagnostic tools and monitoring dashboards to track system health, performance metrics, and error logs.
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- Provide detailed logs and alerts as part of the maintenance interface.
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### 3.3 Deterministic Simulation for Deployment
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- **Testing Deployment Scenarios:**
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- Integrate the deployment process with a deterministic simulation environment to test behavior under simulated adverse conditions (e.g., partial network failures, disk errors).
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- Validate that the system recovers gracefully from simulated deployment faults.
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- **Automated Rollback and Recovery:**
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- Define procedures for automated rollback if an update or deployment fails in the simulated test.
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- Maintain logs of deployment events for auditing and troubleshooting.
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### 3.4 Documentation and Support
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- **Comprehensive Documentation:**
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- Provide detailed deployment instructions and troubleshooting guides.
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- Ensure that documentation is updated alongside system updates to reflect new procedures or changes.
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- **Community and Vendor Support:**
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- Establish support channels (e.g., forums, issue trackers) for deployment issues to facilitate rapid resolution.
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## 4. Measurable Criteria & Test Cases
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### 4.1 Deployment Automation Tests
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- Verify that containers can be deployed using provided scripts/templates across multiple platforms.
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- Test automated configuration and secrets management to ensure that deployments require minimal manual intervention.
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### 4.2 Update and Rollback Testing
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- Simulate rolling update procedures and measure downtime or service interruptions.
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- Conduct rollback tests after simulated deployment failures to confirm that the system returns to a stable state.
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### 4.3 Simulation of Fault Conditions
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- Utilize the deterministic simulation framework to introduce network or disk failures during deployment.
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- Validate that the system’s recovery mechanisms trigger as expected and that comprehensive logs are maintained for analysis.
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## 5. Dependencies & Integration Points
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- **Containerization Infrastructure:**
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- Relies on Docker and orchestration platforms (e.g., Kubernetes) for deployment consistency.
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- **Configuration Management Tools:**
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- Integration with tools such as Ansible, Helm, or similar to automate deployments.
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- **Deterministic Simulation Framework:**
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- Essential to validate behavior under simulated fault conditions and to document recovery procedures.
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## 6. Conclusion
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NFR-6 ensures that the system is easily deployable, maintainable, and updatable in diverse operational environments. By leveraging containerization, automated configuration management, and deterministic simulation testing, the deployment process is streamlined, predictable, and resilient to common failure scenarios. This allows system administrators and users to focus on leveraging the storage solution without being burdened by complex deployment procedures.
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