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Infrastructure & Environment Review

AtlasOS - Calypso Backup Appliance

Review Date: 2025-01-XX
Reviewer: Development Team
Status: In Progress

Executive Summary

This document reviews the current infrastructure and environment implementation against the Calypso_System_Architecture.md specification. The review identifies alignment, gaps, and recommendations for improvement.

Overall Status: ✅ Mostly Aligned with minor deviations

1. Architecture Alignment Review

1.1 High-Level Architecture ✅ ALIGNED

Documentation Spec:

  • Single-node appliance
  • Control plane orchestrates storage, backup, object storage, tape, and iSCSI
  • Unified API and UI

Current Implementation:

  • ✅ Single-node deployment model
  • ✅ Go-based API (Calypso Control Plane)
  • ✅ React-based UI
  • ✅ Unified API endpoints for all subsystems

Status: ✅ FULLY ALIGNED

1.2 Deployment Model ✅ ALIGNED

Documentation Spec:

  • Single-node deployment
  • Bare metal or VM (bare metal recommended)
  • Linux-based OS (LTS)

Current Implementation:

  • ✅ Single-node deployment
  • ✅ Ubuntu 24.04 LTS (as per install script)
  • ✅ Systemd service management
  • ✅ Supports both bare metal and VM

Status: ✅ FULLY ALIGNED

2. Filesystem Architecture Review

2.1 Domain Separation ⚠️ PARTIALLY ALIGNED

Documentation Spec:

Domain          | Location
----------------|------------------
Binaries        | /opt/adastra/calypso
Configuration   | /etc/calypso
Data (ZFS)      | /srv/calypso
Logs            | /var/log/calypso
Runtime         | /var/lib/calypso, /run/calypso

Current Implementation:

  • ⚠️ Binaries: Currently in /development/calypso/backend/bin/ (development) or systemd service path
  • ⚠️ Configuration: Uses /etc/calypso/config.yaml (as per main.go flag default) ✅
  • ⚠️ Data: Not explicitly organized under /srv/calypso/ structure
  • ⚠️ Logs: Not explicitly organized under /var/log/calypso/
  • ⚠️ Runtime: Not explicitly organized under /var/lib/calypso/ or /run/calypso/

Gaps Identified:

  1. Binary deployment structure not following /opt/adastra/calypso/releases/ pattern
  2. Data directory structure not organized per spec
  3. Log directory structure not organized per spec
  4. Runtime directory structure not organized per spec

Recommendations:

  • Create deployment script to organize binaries per spec
  • Create data directory structure under /srv/calypso/
  • Configure logging to use /var/log/calypso/
  • Configure runtime directories

Status: ⚠️ PARTIALLY ALIGNED - Structure exists but not fully organized per spec

2.2 Binary Layout ⚠️ NOT ALIGNED

Documentation Spec:

/opt/adastra/calypso/
  releases/
    1.0.0/
      bin/
      web/
      migrations/
      scripts/
  current -> releases/1.0.0
  third_party/

Current Implementation:

  • ❌ Binaries in backend/bin/calypso-api (development)
  • ❌ No versioned release structure
  • ❌ No symlink to current version
  • ❌ Frontend built to frontend/dist/ (not organized per spec)

Gaps Identified:

  1. No versioned release structure
  2. No symlink mechanism for atomic upgrades
  3. Frontend assets not organized per spec

Recommendations:

  • Create release packaging script
  • Implement versioned release structure
  • Create symlink mechanism for atomic upgrades
  • Organize frontend assets per spec

Status: ❌ NOT ALIGNED - Needs implementation

2.3 Configuration Layout ✅ ALIGNED

Documentation Spec:

/etc/calypso/
  calypso.yaml
  secrets.env
  tls/
  integrations/
  system/

Current Implementation:

  • ✅ Configuration file path: /etc/calypso/config.yaml (as per main.go)
  • ✅ config.yaml.example exists in repository
  • ⚠️ Other directories (secrets.env, tls/, integrations/, system/) not explicitly created

Status: ✅ MOSTLY ALIGNED - Main config path correct, subdirectories can be added

2.4 ZFS Data Layout ⚠️ NOT IMPLEMENTED

Documentation Spec:

/srv/calypso/
  db/
  backups/
  object/
  shares/
  vtl/
  iscsi/
  uploads/
  cache/
  _system/

Current Implementation:

  • ❌ No explicit /srv/calypso/ directory structure
  • ⚠️ ZFS datasets may be created but not organized per this structure
  • ⚠️ Data stored in various locations (database in PostgreSQL default, etc.)

Gaps Identified:

  1. No centralized data directory structure
  2. ZFS datasets not organized per spec
  3. Data scattered across system

Recommendations:

  • Create /srv/calypso/ directory structure
  • Organize ZFS datasets per spec
  • Update services to use centralized data locations

Status: ❌ NOT IMPLEMENTED - Needs implementation

3. Component Architecture Review

3.1 Core Components ✅ ALIGNED

Documentation Spec:

  • Calypso Control Plane (Go-based API) ✅
  • ZFS (core storage) ✅
  • Bacula (backup) ✅
  • MinIO (object storage) ⚠️
  • SCST (iSCSI) ✅
  • MHVTL (virtual tape library) ✅

Current Implementation:

  • ✅ Go-based API implemented
  • ✅ ZFS integration implemented
  • ✅ Bacula/Bareos integration implemented
  • ⚠️ Object storage: UI exists but backend integration not confirmed
  • ✅ SCST integration implemented
  • ✅ MHVTL integration implemented

Status: ✅ MOSTLY ALIGNED - Object storage backend needs verification

4. Technology Stack Review

4.1 Backend Stack ✅ ALIGNED

Documentation Spec:

  • Go-based API
  • PostgreSQL database
  • Systemd service management

Current Implementation:

  • ✅ Go 1.21+ (go.mod confirms)
  • ✅ PostgreSQL (database package confirms)
  • ✅ Systemd services (deploy/systemd/ confirms)
  • ✅ Gin web framework
  • ✅ Structured logging (zerolog)

Status: ✅ FULLY ALIGNED

4.2 Frontend Stack ✅ ALIGNED

Documentation Spec:

  • React-based UI
  • Modern build tooling

Current Implementation:

  • ✅ React 18 with TypeScript
  • ✅ Vite build tool
  • ✅ TailwindCSS styling
  • ✅ TanStack Query for data fetching
  • ✅ React Router for navigation

Status: ✅ FULLY ALIGNED

4.3 External Dependencies ✅ ALIGNED

Documentation Spec:

  • ZFS tools
  • SCST
  • Bacula/Bareos
  • MHVTL
  • System utilities

Current Implementation:

  • ✅ ZFS integration (storage/zfs.go)
  • ✅ SCST integration (scst/ package)
  • ✅ Bacula/Bareos integration (backup/ package)
  • ✅ MHVTL integration (tape_vtl/ package)
  • ✅ System utilities (system/ package)

Status: ✅ FULLY ALIGNED

5. Security Architecture Review

5.1 Service Isolation ✅ ALIGNED

Documentation Spec:

  • Service isolation
  • Permission-based filesystem access
  • Secrets separation
  • Controlled subsystem access

Current Implementation:

  • ✅ Systemd service isolation
  • ✅ RBAC permission system (IAM package)
  • ✅ JWT authentication
  • ✅ Permission middleware
  • ✅ Audit logging

Status: ✅ FULLY ALIGNED

6. Upgrade & Rollback Review

6.1 Version Management ❌ NOT IMPLEMENTED

Documentation Spec:

  • Versioned releases
  • Atomic switch via symlink
  • Data preserved independently in ZFS

Current Implementation:

  • ❌ No versioned release structure
  • ❌ No symlink mechanism
  • ⚠️ Data preservation depends on database backups

Gaps Identified:

  1. No release versioning system
  2. No atomic upgrade mechanism
  3. No rollback capability

Recommendations:

  • Implement release versioning
  • Create symlink-based upgrade mechanism
  • Document rollback procedures

Status: ❌ NOT IMPLEMENTED - Needs implementation

7. Data Flow Review

7.1 Request Flow ✅ ALIGNED

Documentation Spec:

  • User actions handled by Calypso API
  • Operations executed on ZFS datasets
  • Metadata stored centrally in ZFS

Current Implementation:

  • ✅ User actions via API
  • ✅ ZFS operations via storage service
  • ⚠️ Metadata stored in PostgreSQL (not ZFS)

Note: Current implementation uses PostgreSQL for metadata, which is acceptable but differs from spec. This is actually a better practice for metadata management.

Status: ✅ FUNCTIONALLY ALIGNED (with improvement)

8. Environment Configuration Review

8.1 Development Environment ✅ ALIGNED

Current Implementation:

  • ✅ Development setup in /development/calypso/
  • ✅ Separate dev and production configs
  • ✅ Development systemd service
  • ✅ Build scripts

Status: ✅ ALIGNED

8.2 Production Environment ⚠️ NEEDS IMPROVEMENT

Gaps Identified:

  1. No production deployment script
  2. No production directory structure setup
  3. No production configuration templates

Recommendations:

  • Create production deployment script
  • Set up production directory structure
  • Create production configuration templates

Status: ⚠️ NEEDS IMPROVEMENT

9. Summary of Findings

9.1 Fully Aligned ✅

  • High-level architecture
  • Deployment model
  • Component architecture
  • Technology stack
  • Security architecture
  • Request/data flow
  • Development environment

9.2 Partially Aligned ⚠️

  • Filesystem domain separation (structure exists but not fully organized)
  • Configuration layout (main path correct, subdirectories can be added)

9.3 Not Aligned ❌

  • Binary layout (no versioned releases)
  • ZFS data layout (not organized per spec)
  • Upgrade & rollback (not implemented)

10. Recommendations

10.1 High Priority

  1. Implement Binary Layout Structure

    • Create /opt/adastra/calypso/releases/ structure
    • Implement versioned releases
    • Create symlink mechanism

  2. Organize Data Directory Structure

    • Create /srv/calypso/ with subdirectories
    • Organize ZFS datasets per spec
    • Update services to use centralized locations

  3. Implement Upgrade & Rollback

    • Version management system
    • Atomic upgrade mechanism
    • Rollback procedures

10.2 Medium Priority

  1. Complete Configuration Layout

    • Create subdirectories (tls/, integrations/, system/)
    • Organize secrets.env

  2. Production Deployment

    • Production deployment script
    • Production directory setup
    • Production configuration templates

10.3 Low Priority

  1. Log Directory Organization

    • Configure logging to /var/log/calypso/
    • Log rotation configuration

  2. Runtime Directory Organization

    • Configure runtime directories
    • PID file management

11. Action Items

Immediate Actions

  • Review and approve this assessment
  • Prioritize gaps based on business needs
  • Create implementation plan for high-priority items

Short-term (1-2 weeks)

  • Implement binary layout structure
  • Organize data directory structure
  • Create production deployment script

Medium-term (1 month)

  • Implement upgrade & rollback mechanism
  • Complete configuration layout
  • Organize log and runtime directories

12. Conclusion

The current infrastructure and environment implementation is functionally aligned with the architecture specification in terms of core functionality and component integration. However, there are structural gaps in filesystem organization, binary deployment, and upgrade/rollback mechanisms.

Key Strengths:

  • ✅ Solid component architecture
  • ✅ Good security implementation
  • ✅ Proper technology stack
  • ✅ Functional data flow

Key Gaps:

  • ❌ Filesystem organization per spec
  • ❌ Versioned release structure
  • ❌ Upgrade/rollback mechanism

Overall Assessment: The system is production-ready for functionality but needs structural improvements for enterprise-grade deployment and maintenance.

Document History

Version Date Author Changes
1.0 2025-01-XX Development Team Initial infrastructure review