5 Commits

Author SHA1 Message Date
f69bfe7071 feat: Add enterprise DBA features for production reliability
New features implemented:

1. Backup Catalog (internal/catalog/)
   - SQLite-based backup tracking
   - Gap detection and RPO monitoring
   - Search and statistics
   - Filesystem sync

2. DR Drill Testing (internal/drill/)
   - Automated restore testing in Docker containers
   - Database validation with custom queries
   - Catalog integration for drill-tested status

3. Smart Notifications (internal/notify/)
   - Event batching with configurable intervals
   - Time-based escalation policies
   - HTML/text/Slack templates

4. Compliance Reports (internal/report/)
   - SOC2, GDPR, HIPAA, PCI-DSS, ISO27001 frameworks
   - Evidence collection from catalog
   - JSON, Markdown, HTML output formats

5. RTO/RPO Calculator (internal/rto/)
   - Recovery objective analysis
   - RTO breakdown by phase
   - Recommendations for improvement

6. Replica-Aware Backup (internal/replica/)
   - Topology detection for PostgreSQL/MySQL
   - Automatic replica selection
   - Configurable selection strategies

7. Parallel Table Backup (internal/parallel/)
   - Concurrent table dumps
   - Worker pool with progress tracking
   - Large table optimization

8. MySQL/MariaDB PITR (internal/pitr/)
   - Binary log parsing and replay
   - Point-in-time recovery support
   - Transaction filtering

CLI commands added: catalog, drill, report, rto

All changes support the goal: reliable 3 AM database recovery.
2025-12-13 20:28:55 +01:00
914307ac8f ci: add golangci-lint config and fix formatting
- Add .golangci.yml with minimal linters (govet, ineffassign)
- Run gofmt -s and goimports on all files to fix formatting
- Disable fieldalignment and copylocks checks in govet
2025-12-11 17:53:28 +01:00
98d23a2322 feat: Week 3 Phase 3 - Timeline Management
- Created internal/wal/timeline.go (450+ lines)
- Implemented TimelineManager for PostgreSQL timeline tracking
- Parse .history files to build timeline branching structure
- Validate timeline consistency and parent relationships
- Track WAL segment ranges per timeline
- Display timeline tree with visual hierarchy
- Show timeline details (parent, switch LSN, reason, WAL range)
- Added 'wal timeline' command to CLI

Features:
- ParseTimelineHistory: Scan .history files and WAL archives
- ValidateTimelineConsistency: Check parent-child relationships
- GetTimelinePath: Find path from base timeline to target
- FindTimelineAtPoint: Determine timeline at specific LSN
- GetRequiredWALFiles: Collect all WAL files for timeline path
- FormatTimelineTree: Beautiful tree visualization with indentation

Timeline visualization example:
  ● Timeline 1
     WAL segments: 2 files
    ├─ Timeline 2 (switched at 0/3000000)
      ├─ Timeline 3 [CURRENT] (switched at 0/5000000)

Tested with mock timeline data - validation and display working perfectly.
2025-11-26 11:44:25 +00:00
1421fcb5dd feat: Week 3 Phase 2 - WAL Compression & Encryption
- Added compression support (gzip with configurable levels)
- Added AES-256-GCM encryption support for WAL files
- Integrated compression/encryption into WAL archiver
- File format: .gz for compressed, .enc for encrypted, .gz.enc for both
- Uses same encryption key infrastructure as backups
- Added --encryption-key-file and --encryption-key-env flags to wal archive
- Fixed cfg.RetentionDays nil pointer issue

New files:
- internal/wal/compression.go (190 lines)
- internal/wal/encryption.go (270 lines)

Modified:
- internal/wal/archiver.go: Integrated compression/encryption pipeline
- cmd/pitr.go: Added encryption key handling and flags
2025-11-26 11:25:40 +00:00
8a1e2daa29 feat: Week 3 Phase 1 - WAL Archiving & PITR Setup
## WAL Archiving Implementation (Phase 1/5)

### Core Components Created
-  internal/wal/archiver.go (280 lines)
  - WAL file archiving with timeline/segment parsing
  - Archive statistics and cleanup
  - Compression/encryption scaffolding (TODO)

-  internal/wal/pitr_config.go (360 lines)
  - PostgreSQL configuration management
  - auto-detects postgresql.conf location
  - Backs up config before modifications
  - Recovery configuration for PG 12+ and legacy

-  cmd/pitr.go (350 lines)
  - pitr enable/disable/status commands
  - wal archive/list/cleanup commands
  - Integrated with existing CLI

### Features Implemented
**WAL Archiving:**
- ParseWALFileName: Extract timeline + segment from WAL files
- ArchiveWALFile: Copy WAL to archive directory
- ListArchivedWALFiles: View all archived WAL segments
- CleanupOldWALFiles: Retention-based cleanup
- GetArchiveStats: Statistics (total size, file count, date range)

**PITR Configuration:**
- EnablePITR: Auto-configure postgresql.conf for PITR
  - Sets wal_level=replica, archive_mode=on
  - Configures archive_command to call dbbackup
  - Creates WAL archive directory
- DisablePITR: Turn off WAL archiving
- GetCurrentPITRConfig: Read current settings
- CreateRecoveryConf: Generate recovery config (PG 12+ & legacy)

**CLI Commands:**
```bash
# Enable PITR
dbbackup pitr enable --archive-dir /backups/wal_archive

# Check PITR status
dbbackup pitr status

# Archive WAL file (called by PostgreSQL)
dbbackup wal archive <path> <filename> --archive-dir /backups/wal

# List WAL archives
dbbackup wal list --archive-dir /backups/wal_archive

# Cleanup old WAL files
dbbackup wal cleanup --archive-dir /backups/wal_archive --retention-days 7
```

### Architecture
- Modular design: Separate archiver and PITR manager
- PostgreSQL version detection (12+ vs legacy)
- Automatic config file discovery
- Safe config modifications with backups

### Next Steps (Phase 2)
- [ ] Compression support (gzip)
- [ ] Encryption support (AES-256-GCM)
- [ ] Continuous WAL monitoring
- [ ] Timeline management
- [ ] Point-in-time restore command

Time: ~1.5h (3h estimated for Phase 1)
2025-11-26 10:49:57 +00:00