Commit Graph

2 Commits

Author SHA1 Message Date
456e128ec4 feat: Week 3 Phase 5 - PITR Tests & Documentation
- Created comprehensive test suite (700+ lines)
  * 7 major test functions with 21+ sub-tests
  * Recovery target validation (time/XID/LSN/name/immediate)
  * WAL archiving (plain, compressed, with mock files)
  * WAL parsing (filename validation, error cases)
  * Timeline management (history parsing, consistency, path finding)
  * Recovery config generation (PG 12+ and legacy formats)
  * Data directory validation (exists, writable, not running)
  * Performance benchmarks (WAL archiving, target parsing)
  * All tests passing (0.031s execution time)

- Updated README.md with PITR documentation (200+ lines)
  * Complete PITR overview and benefits
  * Step-by-step setup guide (enable, backup, monitor)
  * 5 recovery target examples with full commands
  * Advanced options (compression, encryption, actions, timelines)
  * Complete WAL management command reference
  * 7 best practices recommendations
  * Troubleshooting section with common issues

- Created PITR.md standalone guide
  * Comprehensive PITR documentation
  * Use cases and practical examples
  * Setup instructions with alternatives
  * Recovery operations for all target types
  * Advanced features (compression, encryption, timelines)
  * Troubleshooting with debugging tips
  * Best practices and compliance guidance
  * Performance considerations

- Updated CHANGELOG.md with v3.1 PITR features
  * Complete feature list (WAL archiving, timeline mgmt, recovery)
  * New commands (pitr enable/disable/status, wal archive/list/cleanup/timeline)
  * PITR restore with all target types
  * Advanced features and configuration examples
  * Technical implementation details
  * Performance metrics and use cases

Phases completed:
- Phase 1: WAL Archiving (1.5h) ✓
- Phase 2: Compression & Encryption (1h) ✓
- Phase 3: Timeline Management (0.75h) ✓
- Phase 4: Point-in-Time Restore (1.25h) ✓
- Phase 5: Tests & Documentation (1.25h) ✓

All PITR functionality implemented, tested, and documented.
2025-11-26 12:21:46 +00:00
c620860de3 feat: Phase 4 Tasks 3-4 - CLI encryption integration
Integrated encryption into backup workflow:

cmd/encryption.go:
- loadEncryptionKey() - loads from file or env var
- Supports base64-encoded keys (32 bytes)
- Supports raw 32-byte keys
- Supports passphrases (PBKDF2 derivation)
- Priority: --encryption-key-file > DBBACKUP_ENCRYPTION_KEY

cmd/backup_impl.go:
- encryptLatestBackup() - finds and encrypts single backups
- encryptLatestClusterBackup() - encrypts cluster backups
- findLatestBackup() - locates most recent backup file
- findLatestClusterBackup() - locates cluster backup
- Encryption applied after successful backup
- Integrated into all backup modes (cluster, single, sample)

internal/backup/encryption.go:
- EncryptBackupFile() - encrypts backup in-place
- DecryptBackupFile() - decrypts to new file
- IsBackupEncrypted() - checks metadata/file format
- Updates .meta.json with encryption info
- Replaces original with encrypted version

internal/metadata/metadata.go:
- Added Encrypted bool field
- Added EncryptionAlgorithm string field
- Tracks encryption status in backup metadata

internal/metadata/save.go:
- Helper to save BackupMetadata to .meta.json

tests/encryption_smoke_test.sh:
- Basic smoke test for encryption/decryption
- Verifies data integrity
- Tests with env var key source

CLI Flags (already existed):
--encrypt                      Enable encryption
--encryption-key-file PATH     Key file path
--encryption-key-env VAR       Env var name (default: DBBACKUP_ENCRYPTION_KEY)

Usage Examples:
  # Encrypt with key file
  ./dbbackup backup single mydb --encrypt --encryption-key-file /path/to/key

  # Encrypt with env var
  export DBBACKUP_ENCRYPTION_KEY="base64_encoded_key"
  ./dbbackup backup single mydb --encrypt

  # Cluster backup with encryption
  ./dbbackup backup cluster --encrypt --encryption-key-file key.txt

Features:
 Post-backup encryption (doesn't slow down backup itself)
 In-place encryption (overwrites original)
 Metadata tracking (encrypted flag)
 Multiple key sources (file/env/passphrase)
 Base64 and raw key support
 PBKDF2 for passphrases
 Automatic latest backup detection
 Works with all backup modes

Status: ENCRYPTION FULLY INTEGRATED 
Next: Task 5 - Restore decryption integration
2025-11-26 07:54:25 +00:00