chore: Clean up repository for public release
Removed internal development files:
- PHASE3B_COMPLETION.md (internal dev log)
- PHASE4_COMPLETION.md (internal dev log)
- SPRINT4_COMPLETION.md (internal dev log)
- STATISTICS.md (old test statistics)
- ROADMAP.md (outdated v2.0 roadmap)
- RELEASE_NOTES_v2.1.0.md (superseded by v3.1)
Removed development binaries (360MB+):
- dbbackup (67MB)
- dbbackup_phase2 (67MB)
- dbbackup_phase3 (67MB)
- dbbackup_phase4 (67MB)
- dbbackup_sprint4 (67MB)
- dbbackup_medium (17MB)
- dbbackup_linux_amd64 (47MB)
Updated .gitignore:
- Ignore built binaries in root directory
- Keep bin/ for official releases
- Added IDE and temp file patterns
Result: Cleaner public repository, reduced git size
Kept: Public docs (README, PITR, DOCKER, CLOUD, AZURE, GCS),
test scripts, build scripts, docker-compose files
This commit is contained in:
24
.gitignore
vendored
24
.gitignore
vendored
@@ -8,3 +8,27 @@ logs/
|
||||
*.out
|
||||
*.trace
|
||||
*.err
|
||||
|
||||
# Ignore built binaries in root (keep bin/ directory for releases)
|
||||
/dbbackup
|
||||
/dbbackup_*
|
||||
!dbbackup.png
|
||||
|
||||
# Ignore development artifacts
|
||||
*.swp
|
||||
*.swo
|
||||
*~
|
||||
.DS_Store
|
||||
|
||||
# Ignore IDE files
|
||||
.vscode/
|
||||
.idea/
|
||||
*.iml
|
||||
|
||||
# Ignore test coverage
|
||||
*.cover
|
||||
coverage.html
|
||||
|
||||
# Ignore temporary files
|
||||
tmp/
|
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temp/
|
||||
|
||||
@@ -1,271 +0,0 @@
|
||||
# Phase 3B Completion Report - MySQL Incremental Backups
|
||||
|
||||
**Version:** v2.3 (incremental feature complete)
|
||||
**Completed:** November 26, 2025
|
||||
**Total Time:** ~30 minutes (vs 5-6h estimated) ⚡
|
||||
**Commits:** 1 (357084c)
|
||||
**Strategy:** EXPRESS (Copy-Paste-Adapt from Phase 3A PostgreSQL)
|
||||
|
||||
---
|
||||
|
||||
## 🎯 Objectives Achieved
|
||||
|
||||
✅ **Step 1:** MySQL Change Detection (15 min vs 1h est)
|
||||
✅ **Step 2:** MySQL Create/Restore Functions (10 min vs 1.5h est)
|
||||
✅ **Step 3:** CLI Integration (5 min vs 30 min est)
|
||||
✅ **Step 4:** Tests (5 min - reused existing, both PASS)
|
||||
✅ **Step 5:** Validation (N/A - tests sufficient)
|
||||
|
||||
**Total: 30 minutes vs 5-6 hours estimated = 10x faster!** 🚀
|
||||
|
||||
---
|
||||
|
||||
## 📦 Deliverables
|
||||
|
||||
### **1. MySQL Incremental Engine (`internal/backup/incremental_mysql.go`)**
|
||||
|
||||
**File:** 530 lines (copied & adapted from `incremental_postgres.go`)
|
||||
|
||||
**Key Components:**
|
||||
```go
|
||||
type MySQLIncrementalEngine struct {
|
||||
log logger.Logger
|
||||
}
|
||||
|
||||
// Core Methods:
|
||||
- FindChangedFiles() // mtime-based change detection
|
||||
- CreateIncrementalBackup() // tar.gz archive creation
|
||||
- RestoreIncremental() // base + incremental overlay
|
||||
- createTarGz() // archive creation
|
||||
- extractTarGz() // archive extraction
|
||||
- shouldSkipFile() // MySQL-specific exclusions
|
||||
```
|
||||
|
||||
**MySQL-Specific File Exclusions:**
|
||||
- ✅ Relay logs (`relay-log`, `relay-bin*`)
|
||||
- ✅ Binary logs (`mysql-bin*`, `binlog*`)
|
||||
- ✅ InnoDB redo logs (`ib_logfile*`)
|
||||
- ✅ InnoDB undo logs (`undo_*`)
|
||||
- ✅ Performance schema (in-memory)
|
||||
- ✅ Temporary files (`#sql*`, `*.tmp`)
|
||||
- ✅ Lock files (`*.lock`, `auto.cnf.lock`)
|
||||
- ✅ PID files (`*.pid`, `mysqld.pid`)
|
||||
- ✅ Error logs (`*.err`, `error.log`)
|
||||
- ✅ Slow query logs (`*slow*.log`)
|
||||
- ✅ General logs (`general.log`, `query.log`)
|
||||
- ✅ MySQL Cluster temp files (`ndb_*`)
|
||||
|
||||
### **2. CLI Integration (`cmd/backup_impl.go`)**
|
||||
|
||||
**Changes:** 7 lines changed (updated validation + incremental logic)
|
||||
|
||||
**Before:**
|
||||
```go
|
||||
if !cfg.IsPostgreSQL() {
|
||||
return fmt.Errorf("incremental backups are currently only supported for PostgreSQL")
|
||||
}
|
||||
```
|
||||
|
||||
**After:**
|
||||
```go
|
||||
if !cfg.IsPostgreSQL() && !cfg.IsMySQL() {
|
||||
return fmt.Errorf("incremental backups are only supported for PostgreSQL and MySQL/MariaDB")
|
||||
}
|
||||
|
||||
// Auto-detect database type and use appropriate engine
|
||||
if cfg.IsPostgreSQL() {
|
||||
incrEngine = backup.NewPostgresIncrementalEngine(log)
|
||||
} else {
|
||||
incrEngine = backup.NewMySQLIncrementalEngine(log)
|
||||
}
|
||||
```
|
||||
|
||||
### **3. Testing**
|
||||
|
||||
**Existing Tests:** `internal/backup/incremental_test.go`
|
||||
**Status:** ✅ All tests PASS (0.448s)
|
||||
|
||||
```
|
||||
=== RUN TestIncrementalBackupRestore
|
||||
✅ Step 1: Creating test data files...
|
||||
✅ Step 2: Creating base backup...
|
||||
✅ Step 3: Modifying data files...
|
||||
✅ Step 4: Finding changed files... (Found 5 changed files)
|
||||
✅ Step 5: Creating incremental backup...
|
||||
✅ Step 6: Restoring incremental backup...
|
||||
✅ Step 7: Verifying restored files...
|
||||
--- PASS: TestIncrementalBackupRestore (0.42s)
|
||||
|
||||
=== RUN TestIncrementalBackupErrors
|
||||
✅ Missing_base_backup
|
||||
✅ No_changed_files
|
||||
--- PASS: TestIncrementalBackupErrors (0.00s)
|
||||
|
||||
PASS ok dbbackup/internal/backup 0.448s
|
||||
```
|
||||
|
||||
**Why tests passed immediately:**
|
||||
- Interface-based design (same interface for PostgreSQL and MySQL)
|
||||
- Tests are database-agnostic (test file operations, not SQL)
|
||||
- No code duplication needed
|
||||
|
||||
---
|
||||
|
||||
## 🚀 Features
|
||||
|
||||
### **MySQL Incremental Backups**
|
||||
- **Change Detection:** mtime-based (modified time comparison)
|
||||
- **Archive Format:** tar.gz (same as PostgreSQL)
|
||||
- **Compression:** Configurable level (0-9)
|
||||
- **Metadata:** Same format as PostgreSQL (JSON)
|
||||
- **Backup Chain:** Tracks base → incremental relationships
|
||||
- **Checksum:** SHA-256 for integrity verification
|
||||
|
||||
### **CLI Usage**
|
||||
|
||||
```bash
|
||||
# Full backup (base)
|
||||
./dbbackup backup single mydb --db-type mysql --backup-type full
|
||||
|
||||
# Incremental backup (requires base)
|
||||
./dbbackup backup single mydb \
|
||||
--db-type mysql \
|
||||
--backup-type incremental \
|
||||
--base-backup /path/to/mydb_20251126.tar.gz
|
||||
|
||||
# Restore incremental
|
||||
./dbbackup restore incremental \
|
||||
--base-backup mydb_base.tar.gz \
|
||||
--incremental-backup mydb_incr_20251126.tar.gz \
|
||||
--target /restore/path
|
||||
```
|
||||
|
||||
### **Auto-Detection**
|
||||
- ✅ Detects MySQL/MariaDB vs PostgreSQL automatically
|
||||
- ✅ Uses appropriate engine (MySQLIncrementalEngine vs PostgresIncrementalEngine)
|
||||
- ✅ Same CLI interface for both databases
|
||||
|
||||
---
|
||||
|
||||
## 🎯 Phase 3B vs Plan
|
||||
|
||||
| Task | Planned | Actual | Speedup |
|
||||
|------|---------|--------|---------|
|
||||
| Change Detection | 1h | 15min | **4x** |
|
||||
| Create/Restore | 1.5h | 10min | **9x** |
|
||||
| CLI Integration | 30min | 5min | **6x** |
|
||||
| Tests | 30min | 5min | **6x** |
|
||||
| Validation | 30min | 0min (tests sufficient) | **∞** |
|
||||
| **Total** | **5-6h** | **30min** | **10x faster!** 🚀 |
|
||||
|
||||
---
|
||||
|
||||
## 🔑 Success Factors
|
||||
|
||||
### **Why So Fast?**
|
||||
|
||||
1. **Copy-Paste-Adapt Strategy**
|
||||
- 95% of code copied from `incremental_postgres.go`
|
||||
- Only changed MySQL-specific file exclusions
|
||||
- Same tar.gz logic, same metadata format
|
||||
|
||||
2. **Interface-Based Design (Phase 3A)**
|
||||
- Both engines implement same interface
|
||||
- Tests work for both databases
|
||||
- No code duplication needed
|
||||
|
||||
3. **Pre-Built Infrastructure**
|
||||
- CLI flags already existed
|
||||
- Metadata system already built
|
||||
- Archive helpers already working
|
||||
|
||||
4. **Gas Geben Mode** 🚀
|
||||
- High energy, high momentum
|
||||
- No overthinking, just execute
|
||||
- Copy first, adapt second
|
||||
|
||||
---
|
||||
|
||||
## 📊 Code Metrics
|
||||
|
||||
**Files Created:** 1 (`incremental_mysql.go`)
|
||||
**Files Updated:** 1 (`backup_impl.go`)
|
||||
**Total Lines:** ~580 lines
|
||||
**Code Duplication:** ~90% (intentional, database-specific)
|
||||
**Test Coverage:** ✅ Interface-based tests pass immediately
|
||||
|
||||
---
|
||||
|
||||
## ✅ Completion Checklist
|
||||
|
||||
- [x] MySQL change detection (mtime-based)
|
||||
- [x] MySQL-specific file exclusions (relay logs, binlogs, etc.)
|
||||
- [x] CreateIncrementalBackup() implementation
|
||||
- [x] RestoreIncremental() implementation
|
||||
- [x] Tar.gz archive creation
|
||||
- [x] Tar.gz archive extraction
|
||||
- [x] CLI integration (auto-detect database type)
|
||||
- [x] Interface compatibility with PostgreSQL version
|
||||
- [x] Metadata format (same as PostgreSQL)
|
||||
- [x] Checksum calculation (SHA-256)
|
||||
- [x] Tests passing (TestIncrementalBackupRestore, TestIncrementalBackupErrors)
|
||||
- [x] Build success (no errors)
|
||||
- [x] Documentation (this report)
|
||||
- [x] Git commit (357084c)
|
||||
- [x] Pushed to remote
|
||||
|
||||
---
|
||||
|
||||
## 🎉 Phase 3B Status: **COMPLETE**
|
||||
|
||||
**Feature Parity Achieved:**
|
||||
- ✅ PostgreSQL incremental backups (Phase 3A)
|
||||
- ✅ MySQL incremental backups (Phase 3B)
|
||||
- ✅ Same interface, same CLI, same metadata format
|
||||
- ✅ Both tested and working
|
||||
|
||||
**Next Phase:** Release v3.0 Prep (Day 2 of Week 1)
|
||||
|
||||
---
|
||||
|
||||
## 📝 Week 1 Progress Update
|
||||
|
||||
```
|
||||
Day 1 (6h): ⬅ YOU ARE HERE
|
||||
├─ ✅ Phase 4: Encryption validation (1h) - DONE!
|
||||
└─ ✅ Phase 3B: MySQL Incremental (5h) - DONE in 30min! ⚡
|
||||
|
||||
Day 2 (3h):
|
||||
├─ Phase 3B: Complete & test (1h) - SKIPPED (already done!)
|
||||
└─ Release v3.0 prep (2h) - NEXT!
|
||||
├─ README update
|
||||
├─ CHANGELOG
|
||||
├─ Docs complete
|
||||
└─ Git tag v3.0
|
||||
```
|
||||
|
||||
**Time Savings:** 4.5 hours saved on Day 1!
|
||||
**Momentum:** EXTREMELY HIGH 🚀
|
||||
**Energy:** Still fresh!
|
||||
|
||||
---
|
||||
|
||||
## 🏆 Achievement Unlocked
|
||||
|
||||
**"Lightning Fast Implementation"** ⚡
|
||||
- Estimated: 5-6 hours
|
||||
- Actual: 30 minutes
|
||||
- Speedup: 10x faster!
|
||||
- Quality: All tests passing ✅
|
||||
- Strategy: Copy-Paste-Adapt mastery
|
||||
|
||||
**Phase 3B complete in record time!** 🎊
|
||||
|
||||
---
|
||||
|
||||
**Total Phase 3 (PostgreSQL + MySQL Incremental) Time:**
|
||||
- Phase 3A (PostgreSQL): ~8 hours
|
||||
- Phase 3B (MySQL): ~30 minutes
|
||||
- **Total: ~8.5 hours for full incremental backup support!**
|
||||
|
||||
**Production ready!** 🚀
|
||||
@@ -1,283 +0,0 @@
|
||||
# Phase 4 Completion Report - AES-256-GCM Encryption
|
||||
|
||||
**Version:** v2.3
|
||||
**Completed:** November 26, 2025
|
||||
**Total Time:** ~4 hours (as planned)
|
||||
**Commits:** 3 (7d96ec7, f9140cf, dd614dd)
|
||||
|
||||
---
|
||||
|
||||
## 🎯 Objectives Achieved
|
||||
|
||||
✅ **Task 1:** Encryption Interface Design (1h)
|
||||
✅ **Task 2:** AES-256-GCM Implementation (2h)
|
||||
✅ **Task 3:** CLI Integration - Backup (1h)
|
||||
✅ **Task 4:** Metadata Updates (30min)
|
||||
✅ **Task 5:** Testing (1h)
|
||||
✅ **Task 6:** CLI Integration - Restore (30min)
|
||||
|
||||
---
|
||||
|
||||
## 📦 Deliverables
|
||||
|
||||
### **1. Crypto Library (`internal/crypto/`)**
|
||||
- **File:** `interface.go` (66 lines)
|
||||
- Encryptor interface
|
||||
- EncryptionConfig struct
|
||||
- EncryptionAlgorithm enum
|
||||
|
||||
- **File:** `aes.go` (272 lines)
|
||||
- AESEncryptor implementation
|
||||
- AES-256-GCM authenticated encryption
|
||||
- PBKDF2 key derivation (600k iterations)
|
||||
- Streaming encryption/decryption
|
||||
- Header format: Magic(16) + Algorithm(16) + Nonce(12) + Salt(32) = 56 bytes
|
||||
|
||||
- **File:** `aes_test.go` (274 lines)
|
||||
- Comprehensive test suite
|
||||
- All tests passing (1.402s)
|
||||
- Tests: Streaming, File operations, Wrong key, Key derivation, Large data
|
||||
|
||||
### **2. CLI Integration (`cmd/`)**
|
||||
- **File:** `encryption.go` (72 lines)
|
||||
- Key loading helpers (file, env var, passphrase)
|
||||
- Base64 and raw key support
|
||||
- Key generation utilities
|
||||
|
||||
- **File:** `backup_impl.go` (Updated)
|
||||
- Backup encryption integration
|
||||
- `--encrypt` flag triggers encryption
|
||||
- Auto-encrypts after backup completes
|
||||
- Integrated in: cluster, single, sample backups
|
||||
|
||||
- **File:** `backup.go` (Updated)
|
||||
- Encryption flags:
|
||||
- `--encrypt` - Enable encryption
|
||||
- `--encryption-key-file <path>` - Key file path
|
||||
- `--encryption-key-env <var>` - Environment variable (default: DBBACKUP_ENCRYPTION_KEY)
|
||||
|
||||
- **File:** `restore.go` (Updated - Task 6)
|
||||
- Restore decryption integration
|
||||
- Same encryption flags as backup
|
||||
- Auto-detects encrypted backups
|
||||
- Decrypts before restore begins
|
||||
- Integrated in: single and cluster restore
|
||||
|
||||
### **3. Backup Integration (`internal/backup/`)**
|
||||
- **File:** `encryption.go` (87 lines)
|
||||
- `EncryptBackupFile()` - In-place encryption
|
||||
- `DecryptBackupFile()` - Decryption to new file
|
||||
- `IsBackupEncrypted()` - Detection via metadata or header
|
||||
|
||||
### **4. Metadata (`internal/metadata/`)**
|
||||
- **File:** `metadata.go` (Updated)
|
||||
- Added: `Encrypted bool`
|
||||
- Added: `EncryptionAlgorithm string`
|
||||
|
||||
- **File:** `save.go` (18 lines)
|
||||
- Metadata save helper
|
||||
|
||||
### **5. Testing**
|
||||
- **File:** `tests/encryption_smoke_test.sh` (Created)
|
||||
- Basic smoke test script
|
||||
|
||||
- **Manual Testing:**
|
||||
- ✅ Encryption roundtrip test passed
|
||||
- ✅ Original content ≡ Decrypted content
|
||||
- ✅ Build successful
|
||||
- ✅ All crypto tests passing
|
||||
|
||||
---
|
||||
|
||||
## 🔐 Encryption Specification
|
||||
|
||||
### **Algorithm**
|
||||
- **Cipher:** AES-256 (256-bit key)
|
||||
- **Mode:** GCM (Galois/Counter Mode)
|
||||
- **Authentication:** Built-in AEAD (prevents tampering)
|
||||
|
||||
### **Key Derivation**
|
||||
- **Function:** PBKDF2 with SHA-256
|
||||
- **Iterations:** 600,000 (OWASP recommended 2024)
|
||||
- **Salt:** 32 bytes random
|
||||
- **Output:** 32 bytes (256 bits)
|
||||
|
||||
### **File Format**
|
||||
```
|
||||
+------------------+------------------+-------------+-------------+
|
||||
| Magic (16 bytes) | Algorithm (16) | Nonce (12) | Salt (32) |
|
||||
+------------------+------------------+-------------+-------------+
|
||||
| Encrypted Data (variable length) |
|
||||
+---------------------------------------------------------------+
|
||||
```
|
||||
|
||||
### **Security Features**
|
||||
- ✅ Authenticated encryption (prevents tampering)
|
||||
- ✅ Unique nonce per encryption
|
||||
- ✅ Strong key derivation (600k iterations)
|
||||
- ✅ Cryptographically secure random generation
|
||||
- ✅ Memory-efficient streaming (no full file load)
|
||||
- ✅ Key validation (32 bytes required)
|
||||
|
||||
---
|
||||
|
||||
## 📋 Usage Examples
|
||||
|
||||
### **Encrypted Backup**
|
||||
```bash
|
||||
# Generate key
|
||||
head -c 32 /dev/urandom | base64 > encryption.key
|
||||
|
||||
# Backup with encryption
|
||||
./dbbackup backup single mydb --encrypt --encryption-key-file encryption.key
|
||||
|
||||
# Using environment variable
|
||||
export DBBACKUP_ENCRYPTION_KEY=$(cat encryption.key)
|
||||
./dbbackup backup cluster --encrypt
|
||||
|
||||
# Using passphrase (auto-derives key)
|
||||
echo "my-secure-passphrase" > key.txt
|
||||
./dbbackup backup single mydb --encrypt --encryption-key-file key.txt
|
||||
```
|
||||
|
||||
### **Encrypted Restore**
|
||||
```bash
|
||||
# Restore encrypted backup
|
||||
./dbbackup restore single mydb_20251126.sql \
|
||||
--encryption-key-file encryption.key \
|
||||
--confirm
|
||||
|
||||
# Auto-detection (checks for encryption header)
|
||||
# No need to specify encryption flags if metadata exists
|
||||
|
||||
# Environment variable
|
||||
export DBBACKUP_ENCRYPTION_KEY=$(cat encryption.key)
|
||||
./dbbackup restore cluster cluster_backup.tar.gz --confirm
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 🧪 Validation Results
|
||||
|
||||
### **Crypto Tests**
|
||||
```
|
||||
=== RUN TestAESEncryptionDecryption/StreamingEncryptDecrypt
|
||||
--- PASS: TestAESEncryptionDecryption/StreamingEncryptDecrypt (0.00s)
|
||||
=== RUN TestAESEncryptionDecryption/FileEncryptDecrypt
|
||||
--- PASS: TestAESEncryptionDecryption/FileEncryptDecrypt (0.00s)
|
||||
=== RUN TestAESEncryptionDecryption/WrongKey
|
||||
--- PASS: TestAESEncryptionDecryption/WrongKey (0.00s)
|
||||
=== RUN TestKeyDerivation
|
||||
--- PASS: TestKeyDerivation (1.37s)
|
||||
=== RUN TestKeyValidation
|
||||
--- PASS: TestKeyValidation (0.00s)
|
||||
=== RUN TestLargeData
|
||||
--- PASS: TestLargeData (0.02s)
|
||||
PASS
|
||||
ok dbbackup/internal/crypto 1.402s
|
||||
```
|
||||
|
||||
### **Roundtrip Test**
|
||||
```
|
||||
🔐 Testing encryption...
|
||||
✅ Encryption successful
|
||||
Encrypted file size: 63 bytes
|
||||
|
||||
🔓 Testing decryption...
|
||||
✅ Decryption successful
|
||||
|
||||
✅ ROUNDTRIP TEST PASSED - Data matches perfectly!
|
||||
Original: "TEST BACKUP DATA - UNENCRYPTED\n"
|
||||
Decrypted: "TEST BACKUP DATA - UNENCRYPTED\n"
|
||||
```
|
||||
|
||||
### **Build Status**
|
||||
```bash
|
||||
$ go build -o dbbackup .
|
||||
✅ Build successful - No errors
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 🎯 Performance Characteristics
|
||||
|
||||
- **Encryption Speed:** ~1-2 GB/s (streaming, no memory bottleneck)
|
||||
- **Memory Usage:** O(buffer size), not O(file size)
|
||||
- **Overhead:** ~56 bytes header + 16 bytes GCM tag per file
|
||||
- **Key Derivation:** ~1.4s for 600k iterations (intentionally slow)
|
||||
|
||||
---
|
||||
|
||||
## 📁 Files Changed
|
||||
|
||||
**Created (9 files):**
|
||||
- `internal/crypto/interface.go`
|
||||
- `internal/crypto/aes.go`
|
||||
- `internal/crypto/aes_test.go`
|
||||
- `cmd/encryption.go`
|
||||
- `internal/backup/encryption.go`
|
||||
- `internal/metadata/save.go`
|
||||
- `tests/encryption_smoke_test.sh`
|
||||
|
||||
**Updated (4 files):**
|
||||
- `cmd/backup_impl.go` - Backup encryption integration
|
||||
- `cmd/backup.go` - Encryption flags
|
||||
- `cmd/restore.go` - Restore decryption integration
|
||||
- `internal/metadata/metadata.go` - Encrypted fields
|
||||
|
||||
**Total Lines:** ~1,200 lines (including tests)
|
||||
|
||||
---
|
||||
|
||||
## 🚀 Git History
|
||||
|
||||
```bash
|
||||
7d96ec7 feat: Phase 4 Steps 1-2 - Encryption library (AES-256-GCM)
|
||||
f9140cf feat: Phase 4 Tasks 3-4 - CLI encryption integration
|
||||
dd614dd feat: Phase 4 Task 6 - Restore decryption integration
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## ✅ Completion Checklist
|
||||
|
||||
- [x] Encryption interface design
|
||||
- [x] AES-256-GCM implementation
|
||||
- [x] PBKDF2 key derivation (600k iterations)
|
||||
- [x] Streaming encryption (memory efficient)
|
||||
- [x] CLI flags (--encrypt, --encryption-key-file, --encryption-key-env)
|
||||
- [x] Backup encryption integration (cluster, single, sample)
|
||||
- [x] Restore decryption integration (single, cluster)
|
||||
- [x] Metadata tracking (Encrypted, EncryptionAlgorithm)
|
||||
- [x] Key loading (file, env var, passphrase)
|
||||
- [x] Auto-detection of encrypted backups
|
||||
- [x] Comprehensive tests (all passing)
|
||||
- [x] Roundtrip validation (encrypt → decrypt → verify)
|
||||
- [x] Build success (no errors)
|
||||
- [x] Documentation (this report)
|
||||
- [x] Git commits (3 commits)
|
||||
- [x] Pushed to remote
|
||||
|
||||
---
|
||||
|
||||
## 🎉 Phase 4 Status: **COMPLETE**
|
||||
|
||||
**Next Phase:** Phase 3B - MySQL Incremental Backups (Day 1 of Week 1)
|
||||
|
||||
---
|
||||
|
||||
## 📊 Phase 4 vs Plan
|
||||
|
||||
| Task | Planned | Actual | Status |
|
||||
|------|---------|--------|--------|
|
||||
| Interface Design | 1h | 1h | ✅ |
|
||||
| AES-256 Impl | 2h | 2h | ✅ |
|
||||
| CLI Integration (Backup) | 1h | 1h | ✅ |
|
||||
| Metadata Update | 30min | 30min | ✅ |
|
||||
| Testing | 1h | 1h | ✅ |
|
||||
| CLI Integration (Restore) | - | 30min | ✅ Bonus |
|
||||
| **Total** | **5.5h** | **6h** | ✅ **On Schedule** |
|
||||
|
||||
---
|
||||
|
||||
**Phase 4 encryption is production-ready!** 🎊
|
||||
@@ -1,275 +0,0 @@
|
||||
# dbbackup v2.1.0 Release Notes
|
||||
|
||||
**Release Date:** November 26, 2025
|
||||
**Git Tag:** v2.1.0
|
||||
**Commit:** 3a08b90
|
||||
|
||||
---
|
||||
|
||||
## 🎉 What's New in v2.1.0
|
||||
|
||||
### ☁️ Cloud Storage Integration (MAJOR FEATURE)
|
||||
|
||||
Complete native support for three major cloud providers:
|
||||
|
||||
#### **S3/MinIO/Backblaze B2**
|
||||
- Native S3-compatible backend
|
||||
- Streaming multipart uploads (>100MB files)
|
||||
- Path-style and virtual-hosted-style addressing
|
||||
- LocalStack/MinIO testing support
|
||||
|
||||
#### **Azure Blob Storage**
|
||||
- Native Azure SDK integration
|
||||
- Block blob uploads with 100MB staging for large files
|
||||
- Azurite emulator support for local testing
|
||||
- SHA-256 metadata storage
|
||||
|
||||
#### **Google Cloud Storage**
|
||||
- Native GCS SDK integration
|
||||
- 16MB chunked uploads
|
||||
- Application Default Credentials (ADC)
|
||||
- fake-gcs-server support for testing
|
||||
|
||||
### 🎨 TUI Cloud Configuration
|
||||
|
||||
Configure cloud storage directly in interactive mode:
|
||||
- **Settings Menu** → Cloud Storage section
|
||||
- Toggle cloud storage on/off
|
||||
- Select provider (S3, MinIO, B2, Azure, GCS)
|
||||
- Configure bucket/container, region, credentials
|
||||
- Enable auto-upload after backups
|
||||
- Credential masking for security
|
||||
|
||||
### 🌐 Cross-Platform Support (10/10 Platforms)
|
||||
|
||||
All platforms now build successfully:
|
||||
- ✅ Linux (x64, ARM64, ARMv7)
|
||||
- ✅ macOS (Intel, Apple Silicon)
|
||||
- ✅ Windows (x64, ARM64)
|
||||
- ✅ FreeBSD (x64)
|
||||
- ✅ OpenBSD (x64)
|
||||
- ✅ NetBSD (x64)
|
||||
|
||||
**Fixed Issues:**
|
||||
- Windows: syscall.Rlimit compatibility
|
||||
- BSD: int64/uint64 type conversions
|
||||
- OpenBSD: RLIMIT_AS unavailable
|
||||
- NetBSD: syscall.Statfs API differences
|
||||
|
||||
---
|
||||
|
||||
## 📋 Complete Feature Set (v2.1.0)
|
||||
|
||||
### Database Support
|
||||
- PostgreSQL (9.x - 16.x)
|
||||
- MySQL (5.7, 8.x)
|
||||
- MariaDB (10.x, 11.x)
|
||||
|
||||
### Backup Modes
|
||||
- **Single Database** - Backup one database
|
||||
- **Cluster Backup** - All databases (PostgreSQL only)
|
||||
- **Sample Backup** - Reduced-size backups for testing
|
||||
|
||||
### Cloud Providers
|
||||
- **S3** - Amazon S3 (`s3://bucket/path`)
|
||||
- **MinIO** - Self-hosted S3-compatible (`s3://bucket/path` + endpoint)
|
||||
- **Backblaze B2** - B2 Cloud Storage (`s3://bucket/path` + endpoint)
|
||||
- **Azure Blob Storage** - Microsoft Azure (`azure://container/path`)
|
||||
- **Google Cloud Storage** - Google Cloud (`gcs://bucket/path`)
|
||||
|
||||
### Core Features
|
||||
- ✅ Streaming compression (constant memory usage)
|
||||
- ✅ Parallel processing (auto CPU detection)
|
||||
- ✅ SHA-256 verification
|
||||
- ✅ JSON metadata (.info files)
|
||||
- ✅ Retention policies (cleanup old backups)
|
||||
- ✅ Interactive TUI with progress tracking
|
||||
- ✅ Configuration persistence (.dbbackup.conf)
|
||||
- ✅ Cloud auto-upload
|
||||
- ✅ Multipart uploads (>100MB)
|
||||
- ✅ Progress tracking with ETA
|
||||
|
||||
---
|
||||
|
||||
## 🚀 Quick Start Examples
|
||||
|
||||
### Basic Cloud Backup
|
||||
|
||||
```bash
|
||||
# Configure via TUI
|
||||
./dbbackup interactive
|
||||
# Navigate to: Configuration Settings
|
||||
# Enable: Cloud Storage = true
|
||||
# Set: Cloud Provider = s3
|
||||
# Set: Cloud Bucket = my-backups
|
||||
# Set: Cloud Auto-Upload = true
|
||||
|
||||
# Backup will now auto-upload to S3
|
||||
./dbbackup backup single mydb
|
||||
```
|
||||
|
||||
### Command-Line Cloud Backup
|
||||
|
||||
```bash
|
||||
# S3
|
||||
export AWS_ACCESS_KEY_ID="your-key"
|
||||
export AWS_SECRET_ACCESS_KEY="your-secret"
|
||||
./dbbackup backup single mydb --cloud s3://my-bucket/backups/
|
||||
|
||||
# Azure
|
||||
export AZURE_STORAGE_ACCOUNT="myaccount"
|
||||
export AZURE_STORAGE_KEY="key"
|
||||
./dbbackup backup single mydb --cloud azure://my-container/backups/
|
||||
|
||||
# GCS (with service account)
|
||||
export GOOGLE_APPLICATION_CREDENTIALS="/path/to/service-account.json"
|
||||
./dbbackup backup single mydb --cloud gcs://my-bucket/backups/
|
||||
```
|
||||
|
||||
### Cloud Restore
|
||||
|
||||
```bash
|
||||
# Restore from S3
|
||||
./dbbackup restore single s3://my-bucket/backups/mydb_20250126.tar.gz
|
||||
|
||||
# Restore from Azure
|
||||
./dbbackup restore single azure://my-container/backups/mydb_20250126.tar.gz
|
||||
|
||||
# Restore from GCS
|
||||
./dbbackup restore single gcs://my-bucket/backups/mydb_20250126.tar.gz
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 📦 Installation
|
||||
|
||||
### Pre-compiled Binaries
|
||||
|
||||
```bash
|
||||
# Linux x64
|
||||
curl -L https://git.uuxo.net/uuxo/dbbackup/raw/branch/main/bin/dbbackup_linux_amd64 -o dbbackup
|
||||
chmod +x dbbackup
|
||||
|
||||
# macOS Intel
|
||||
curl -L https://git.uuxo.net/uuxo/dbbackup/raw/branch/main/bin/dbbackup_darwin_amd64 -o dbbackup
|
||||
chmod +x dbbackup
|
||||
|
||||
# macOS Apple Silicon
|
||||
curl -L https://git.uuxo.net/uuxo/dbbackup/raw/branch/main/bin/dbbackup_darwin_arm64 -o dbbackup
|
||||
chmod +x dbbackup
|
||||
|
||||
# Windows (PowerShell)
|
||||
Invoke-WebRequest -Uri "https://git.uuxo.net/uuxo/dbbackup/raw/branch/main/bin/dbbackup_windows_amd64.exe" -OutFile "dbbackup.exe"
|
||||
```
|
||||
|
||||
### Docker
|
||||
|
||||
```bash
|
||||
docker pull git.uuxo.net/uuxo/dbbackup:latest
|
||||
|
||||
# With cloud credentials
|
||||
docker run --rm \
|
||||
-e AWS_ACCESS_KEY_ID="key" \
|
||||
-e AWS_SECRET_ACCESS_KEY="secret" \
|
||||
-e PGHOST=postgres \
|
||||
-e PGUSER=postgres \
|
||||
-e PGPASSWORD=secret \
|
||||
git.uuxo.net/uuxo/dbbackup:latest \
|
||||
backup single mydb --cloud s3://bucket/backups/
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 🧪 Testing Cloud Storage
|
||||
|
||||
### Local Testing with Emulators
|
||||
|
||||
```bash
|
||||
# MinIO (S3-compatible)
|
||||
docker compose -f docker-compose.minio.yml up -d
|
||||
./scripts/test_cloud_storage.sh
|
||||
|
||||
# Azure (Azurite)
|
||||
docker compose -f docker-compose.azurite.yml up -d
|
||||
./scripts/test_azure_storage.sh
|
||||
|
||||
# GCS (fake-gcs-server)
|
||||
docker compose -f docker-compose.gcs.yml up -d
|
||||
./scripts/test_gcs_storage.sh
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 📚 Documentation
|
||||
|
||||
- [README.md](README.md) - Main documentation
|
||||
- [CLOUD.md](CLOUD.md) - Complete cloud storage guide
|
||||
- [CHANGELOG.md](CHANGELOG.md) - Version history
|
||||
- [DOCKER.md](DOCKER.md) - Docker usage guide
|
||||
- [AZURE.md](AZURE.md) - Azure-specific guide
|
||||
- [GCS.md](GCS.md) - GCS-specific guide
|
||||
|
||||
---
|
||||
|
||||
## 🔄 Upgrade from v2.0
|
||||
|
||||
v2.1.0 is **fully backward compatible** with v2.0. Existing backups and configurations work without changes.
|
||||
|
||||
**New in v2.1:**
|
||||
- Cloud storage configuration in TUI
|
||||
- Auto-upload functionality
|
||||
- Cross-platform Windows/NetBSD support
|
||||
|
||||
**Migration steps:**
|
||||
1. Update binary: Download latest from `bin/` directory
|
||||
2. (Optional) Enable cloud: `./dbbackup interactive` → Settings → Cloud Storage
|
||||
3. (Optional) Configure provider, bucket, credentials
|
||||
4. Existing local backups remain unchanged
|
||||
|
||||
---
|
||||
|
||||
## 🐛 Known Issues
|
||||
|
||||
None at this time. All 10 platforms building successfully.
|
||||
|
||||
**Report issues:** https://git.uuxo.net/uuxo/dbbackup/issues
|
||||
|
||||
---
|
||||
|
||||
## 🗺️ Roadmap - What's Next?
|
||||
|
||||
### v2.2 - Incremental Backups (Planned)
|
||||
- File-level incremental for PostgreSQL
|
||||
- Binary log incremental for MySQL
|
||||
- Differential backup support
|
||||
|
||||
### v2.3 - Encryption (Planned)
|
||||
- AES-256 at-rest encryption
|
||||
- Encrypted cloud uploads
|
||||
- Key management
|
||||
|
||||
### v2.4 - PITR (Planned)
|
||||
- WAL archiving (PostgreSQL)
|
||||
- Binary log archiving (MySQL)
|
||||
- Restore to specific timestamp
|
||||
|
||||
### v2.5 - Enterprise Features (Planned)
|
||||
- Prometheus metrics
|
||||
- Remote restore
|
||||
- Replication slot management
|
||||
|
||||
---
|
||||
|
||||
## 👥 Contributors
|
||||
|
||||
- uuxo (maintainer)
|
||||
|
||||
---
|
||||
|
||||
## 📄 License
|
||||
|
||||
See LICENSE file in repository.
|
||||
|
||||
---
|
||||
|
||||
**Full Changelog:** https://git.uuxo.net/uuxo/dbbackup/src/branch/main/CHANGELOG.md
|
||||
523
ROADMAP.md
523
ROADMAP.md
@@ -1,523 +0,0 @@
|
||||
# dbbackup Version 2.0 Roadmap
|
||||
|
||||
## Current Status: v1.1 (Production Ready)
|
||||
- ✅ 24/24 automated tests passing (100%)
|
||||
- ✅ PostgreSQL, MySQL, MariaDB support
|
||||
- ✅ Interactive TUI + CLI
|
||||
- ✅ Cluster backup/restore
|
||||
- ✅ Docker support
|
||||
- ✅ Cross-platform binaries
|
||||
|
||||
---
|
||||
|
||||
## Version 2.0 Vision: Enterprise-Grade Features
|
||||
|
||||
Transform dbbackup into an enterprise-ready backup solution with cloud storage, incremental backups, PITR, and encryption.
|
||||
|
||||
**Target Release:** Q2 2026 (3-4 months)
|
||||
|
||||
---
|
||||
|
||||
## Priority Matrix
|
||||
|
||||
```
|
||||
HIGH IMPACT
|
||||
│
|
||||
┌────────────────────┼────────────────────┐
|
||||
│ │ │
|
||||
│ Cloud Storage ⭐ │ Incremental ⭐⭐⭐ │
|
||||
│ Verification │ PITR ⭐⭐⭐ │
|
||||
│ Retention │ Encryption ⭐⭐ │
|
||||
LOW │ │ │ HIGH
|
||||
EFFORT ─────────────────┼──────────────────── EFFORT
|
||||
│ │ │
|
||||
│ Metrics │ Web UI (optional) │
|
||||
│ Remote Restore │ Replication Slots │
|
||||
│ │ │
|
||||
└────────────────────┼────────────────────┘
|
||||
│
|
||||
LOW IMPACT
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Development Phases
|
||||
|
||||
### Phase 1: Foundation (Weeks 1-4)
|
||||
|
||||
**Sprint 1: Verification & Retention (2 weeks)**
|
||||
|
||||
**Goals:**
|
||||
- Backup integrity verification with SHA-256 checksums
|
||||
- Automated retention policy enforcement
|
||||
- Structured backup metadata
|
||||
|
||||
**Features:**
|
||||
- ✅ Generate SHA-256 checksums during backup
|
||||
- ✅ Verify backups before/after restore
|
||||
- ✅ Automatic cleanup of old backups
|
||||
- ✅ Retention policy: days + minimum count
|
||||
- ✅ Backup metadata in JSON format
|
||||
|
||||
**Deliverables:**
|
||||
```bash
|
||||
# New commands
|
||||
dbbackup verify backup.dump
|
||||
dbbackup cleanup --retention-days 30 --min-backups 5
|
||||
|
||||
# Metadata format
|
||||
{
|
||||
"version": "2.0",
|
||||
"timestamp": "2026-01-15T10:30:00Z",
|
||||
"database": "production",
|
||||
"size_bytes": 1073741824,
|
||||
"sha256": "abc123...",
|
||||
"db_version": "PostgreSQL 15.3",
|
||||
"compression": "gzip-9"
|
||||
}
|
||||
```
|
||||
|
||||
**Implementation:**
|
||||
- `internal/verification/` - Checksum calculation and validation
|
||||
- `internal/retention/` - Policy enforcement
|
||||
- `internal/metadata/` - Backup metadata management
|
||||
|
||||
---
|
||||
|
||||
**Sprint 2: Cloud Storage (2 weeks)**
|
||||
|
||||
**Goals:**
|
||||
- Upload backups to cloud storage
|
||||
- Support multiple cloud providers
|
||||
- Download and restore from cloud
|
||||
|
||||
**Providers:**
|
||||
- ✅ AWS S3
|
||||
- ✅ MinIO (S3-compatible)
|
||||
- ✅ Backblaze B2
|
||||
- ✅ Azure Blob Storage (optional)
|
||||
- ✅ Google Cloud Storage (optional)
|
||||
|
||||
**Configuration:**
|
||||
```toml
|
||||
[cloud]
|
||||
enabled = true
|
||||
provider = "s3" # s3, minio, azure, gcs, b2
|
||||
auto_upload = true
|
||||
|
||||
[cloud.s3]
|
||||
bucket = "db-backups"
|
||||
region = "us-east-1"
|
||||
endpoint = "s3.amazonaws.com" # Custom for MinIO
|
||||
access_key = "..." # Or use IAM role
|
||||
secret_key = "..."
|
||||
```
|
||||
|
||||
**New Commands:**
|
||||
```bash
|
||||
# Upload existing backup
|
||||
dbbackup cloud upload backup.dump
|
||||
|
||||
# List cloud backups
|
||||
dbbackup cloud list
|
||||
|
||||
# Download from cloud
|
||||
dbbackup cloud download backup_id
|
||||
|
||||
# Restore directly from cloud
|
||||
dbbackup restore single s3://bucket/backup.dump --target mydb
|
||||
```
|
||||
|
||||
**Dependencies:**
|
||||
```go
|
||||
"github.com/aws/aws-sdk-go-v2/service/s3"
|
||||
"github.com/Azure/azure-sdk-for-go/sdk/storage/azblob"
|
||||
"cloud.google.com/go/storage"
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
### Phase 2: Advanced Backup (Weeks 5-10)
|
||||
|
||||
**Sprint 3: Incremental Backups (3 weeks)**
|
||||
|
||||
**Goals:**
|
||||
- Reduce backup time and storage
|
||||
- File-level incremental for PostgreSQL
|
||||
- Binary log incremental for MySQL
|
||||
|
||||
**PostgreSQL Strategy:**
|
||||
```
|
||||
Full Backup (Base)
|
||||
├─ Incremental 1 (changed files since base)
|
||||
├─ Incremental 2 (changed files since inc1)
|
||||
└─ Incremental 3 (changed files since inc2)
|
||||
```
|
||||
|
||||
**MySQL Strategy:**
|
||||
```
|
||||
Full Backup
|
||||
├─ Binary Log 1 (changes since full)
|
||||
├─ Binary Log 2
|
||||
└─ Binary Log 3
|
||||
```
|
||||
|
||||
**Implementation:**
|
||||
```bash
|
||||
# Create base backup
|
||||
dbbackup backup single mydb --mode full
|
||||
|
||||
# Create incremental
|
||||
dbbackup backup single mydb --mode incremental
|
||||
|
||||
# Restore (automatically applies incrementals)
|
||||
dbbackup restore single backup.dump --apply-incrementals
|
||||
```
|
||||
|
||||
**File Structure:**
|
||||
```
|
||||
backups/
|
||||
├── mydb_full_20260115.dump
|
||||
├── mydb_full_20260115.meta
|
||||
├── mydb_incr_20260116.dump # Contains only changes
|
||||
├── mydb_incr_20260116.meta # Points to base: mydb_full_20260115
|
||||
└── mydb_incr_20260117.dump
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
**Sprint 4: Security & Encryption (2 weeks)**
|
||||
|
||||
**Goals:**
|
||||
- Encrypt backups at rest
|
||||
- Secure key management
|
||||
- Encrypted cloud uploads
|
||||
|
||||
**Features:**
|
||||
- ✅ AES-256-GCM encryption
|
||||
- ✅ Argon2 key derivation
|
||||
- ✅ Multiple key sources (file, env, vault)
|
||||
- ✅ Encrypted metadata
|
||||
|
||||
**Configuration:**
|
||||
```toml
|
||||
[encryption]
|
||||
enabled = true
|
||||
algorithm = "aes-256-gcm"
|
||||
key_file = "/etc/dbbackup/encryption.key"
|
||||
|
||||
# Or use environment variable
|
||||
# DBBACKUP_ENCRYPTION_KEY=base64key...
|
||||
```
|
||||
|
||||
**Commands:**
|
||||
```bash
|
||||
# Generate encryption key
|
||||
dbbackup keys generate
|
||||
|
||||
# Encrypt existing backup
|
||||
dbbackup encrypt backup.dump
|
||||
|
||||
# Decrypt backup
|
||||
dbbackup decrypt backup.dump.enc
|
||||
|
||||
# Automatic encryption
|
||||
dbbackup backup single mydb --encrypt
|
||||
```
|
||||
|
||||
**File Format:**
|
||||
```
|
||||
+------------------+
|
||||
| Encryption Header| (IV, algorithm, key ID)
|
||||
+------------------+
|
||||
| Encrypted Data | (AES-256-GCM)
|
||||
+------------------+
|
||||
| Auth Tag | (HMAC for integrity)
|
||||
+------------------+
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
**Sprint 5: Point-in-Time Recovery - PITR (4 weeks)**
|
||||
|
||||
**Goals:**
|
||||
- Restore to any point in time
|
||||
- WAL archiving for PostgreSQL
|
||||
- Binary log archiving for MySQL
|
||||
|
||||
**PostgreSQL Implementation:**
|
||||
|
||||
```toml
|
||||
[pitr]
|
||||
enabled = true
|
||||
wal_archive_dir = "/backups/wal_archive"
|
||||
wal_retention_days = 7
|
||||
|
||||
# PostgreSQL config (auto-configured by dbbackup)
|
||||
# archive_mode = on
|
||||
# archive_command = '/usr/local/bin/dbbackup archive-wal %p %f'
|
||||
```
|
||||
|
||||
**Commands:**
|
||||
```bash
|
||||
# Enable PITR
|
||||
dbbackup pitr enable
|
||||
|
||||
# Archive WAL manually
|
||||
dbbackup archive-wal /var/lib/postgresql/pg_wal/000000010000000000000001
|
||||
|
||||
# Restore to point-in-time
|
||||
dbbackup restore single backup.dump \
|
||||
--target-time "2026-01-15 14:30:00" \
|
||||
--target mydb
|
||||
|
||||
# Show available restore points
|
||||
dbbackup pitr timeline
|
||||
```
|
||||
|
||||
**WAL Archive Structure:**
|
||||
```
|
||||
wal_archive/
|
||||
├── 000000010000000000000001
|
||||
├── 000000010000000000000002
|
||||
├── 000000010000000000000003
|
||||
└── timeline.json
|
||||
```
|
||||
|
||||
**MySQL Implementation:**
|
||||
```bash
|
||||
# Archive binary logs
|
||||
dbbackup binlog archive --start-datetime "2026-01-15 00:00:00"
|
||||
|
||||
# PITR restore
|
||||
dbbackup restore single backup.sql \
|
||||
--target-time "2026-01-15 14:30:00" \
|
||||
--apply-binlogs
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
### Phase 3: Enterprise Features (Weeks 11-16)
|
||||
|
||||
**Sprint 6: Observability & Integration (3 weeks)**
|
||||
|
||||
**Features:**
|
||||
|
||||
1. **Prometheus Metrics**
|
||||
```go
|
||||
# Exposed metrics
|
||||
dbbackup_backup_duration_seconds
|
||||
dbbackup_backup_size_bytes
|
||||
dbbackup_backup_success_total
|
||||
dbbackup_restore_duration_seconds
|
||||
dbbackup_last_backup_timestamp
|
||||
dbbackup_cloud_upload_duration_seconds
|
||||
```
|
||||
|
||||
**Endpoint:**
|
||||
```bash
|
||||
# Start metrics server
|
||||
dbbackup metrics serve --port 9090
|
||||
|
||||
# Scrape endpoint
|
||||
curl http://localhost:9090/metrics
|
||||
```
|
||||
|
||||
2. **Remote Restore**
|
||||
```bash
|
||||
# Restore to remote server
|
||||
dbbackup restore single backup.dump \
|
||||
--remote-host db-replica-01 \
|
||||
--remote-user postgres \
|
||||
--remote-port 22 \
|
||||
--confirm
|
||||
```
|
||||
|
||||
3. **Replication Slots (PostgreSQL)**
|
||||
```bash
|
||||
# Create replication slot for continuous WAL streaming
|
||||
dbbackup replication create-slot backup_slot
|
||||
|
||||
# Stream WALs via replication
|
||||
dbbackup replication stream backup_slot
|
||||
```
|
||||
|
||||
4. **Webhook Notifications**
|
||||
```toml
|
||||
[notifications]
|
||||
enabled = true
|
||||
webhook_url = "https://slack.com/webhook/..."
|
||||
notify_on = ["backup_complete", "backup_failed", "restore_complete"]
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Technical Architecture
|
||||
|
||||
### New Directory Structure
|
||||
|
||||
```
|
||||
internal/
|
||||
├── cloud/ # Cloud storage backends
|
||||
│ ├── interface.go
|
||||
│ ├── s3.go
|
||||
│ ├── azure.go
|
||||
│ └── gcs.go
|
||||
├── encryption/ # Encryption layer
|
||||
│ ├── aes.go
|
||||
│ ├── keys.go
|
||||
│ └── vault.go
|
||||
├── incremental/ # Incremental backup engine
|
||||
│ ├── postgres.go
|
||||
│ └── mysql.go
|
||||
├── pitr/ # Point-in-time recovery
|
||||
│ ├── wal.go
|
||||
│ ├── binlog.go
|
||||
│ └── timeline.go
|
||||
├── verification/ # Backup verification
|
||||
│ ├── checksum.go
|
||||
│ └── validate.go
|
||||
├── retention/ # Retention policy
|
||||
│ └── cleanup.go
|
||||
├── metrics/ # Prometheus metrics
|
||||
│ └── exporter.go
|
||||
└── replication/ # Replication management
|
||||
└── slots.go
|
||||
```
|
||||
|
||||
### Required Dependencies
|
||||
|
||||
```go
|
||||
// Cloud storage
|
||||
"github.com/aws/aws-sdk-go-v2/service/s3"
|
||||
"github.com/Azure/azure-sdk-for-go/sdk/storage/azblob"
|
||||
"cloud.google.com/go/storage"
|
||||
|
||||
// Encryption
|
||||
"crypto/aes"
|
||||
"crypto/cipher"
|
||||
"golang.org/x/crypto/argon2"
|
||||
|
||||
// Metrics
|
||||
"github.com/prometheus/client_golang/prometheus"
|
||||
"github.com/prometheus/client_golang/prometheus/promhttp"
|
||||
|
||||
// PostgreSQL replication
|
||||
"github.com/jackc/pgx/v5/pgconn"
|
||||
|
||||
// Fast file scanning for incrementals
|
||||
"github.com/karrick/godirwalk"
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Testing Strategy
|
||||
|
||||
### v2.0 Test Coverage Goals
|
||||
- Minimum 90% code coverage
|
||||
- Integration tests for all cloud providers
|
||||
- End-to-end PITR scenarios
|
||||
- Performance benchmarks for incremental backups
|
||||
- Encryption/decryption validation
|
||||
- Multi-database restore tests
|
||||
|
||||
### New Test Suites
|
||||
```bash
|
||||
# Cloud storage tests
|
||||
./run_qa_tests.sh --suite cloud
|
||||
|
||||
# Incremental backup tests
|
||||
./run_qa_tests.sh --suite incremental
|
||||
|
||||
# PITR tests
|
||||
./run_qa_tests.sh --suite pitr
|
||||
|
||||
# Encryption tests
|
||||
./run_qa_tests.sh --suite encryption
|
||||
|
||||
# Full v2.0 suite
|
||||
./run_qa_tests.sh --suite v2
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Migration Path
|
||||
|
||||
### v1.x → v2.0 Compatibility
|
||||
- ✅ All v1.x backups readable in v2.0
|
||||
- ✅ Configuration auto-migration
|
||||
- ✅ Metadata format upgrade
|
||||
- ✅ Backward-compatible commands
|
||||
|
||||
### Deprecation Timeline
|
||||
- v2.0: Warning for old config format
|
||||
- v2.1: Full migration required
|
||||
- v3.0: Old format no longer supported
|
||||
|
||||
---
|
||||
|
||||
## Documentation Updates
|
||||
|
||||
### New Docs
|
||||
- `CLOUD.md` - Cloud storage configuration
|
||||
- `INCREMENTAL.md` - Incremental backup guide
|
||||
- `PITR.md` - Point-in-time recovery
|
||||
- `ENCRYPTION.md` - Encryption setup
|
||||
- `METRICS.md` - Prometheus integration
|
||||
|
||||
---
|
||||
|
||||
## Success Metrics
|
||||
|
||||
### v2.0 Goals
|
||||
- 🎯 95%+ test coverage
|
||||
- 🎯 Support 1TB+ databases with incrementals
|
||||
- 🎯 PITR with <5 minute granularity
|
||||
- 🎯 Cloud upload/download >100MB/s
|
||||
- 🎯 Encryption overhead <10%
|
||||
- 🎯 Full compatibility with pgBackRest for PostgreSQL
|
||||
- 🎯 Industry-leading MySQL PITR solution
|
||||
|
||||
---
|
||||
|
||||
## Release Schedule
|
||||
|
||||
- **v2.0-alpha** (End Sprint 3): Cloud + Verification
|
||||
- **v2.0-beta** (End Sprint 5): + Incremental + PITR
|
||||
- **v2.0-rc1** (End Sprint 6): + Enterprise features
|
||||
- **v2.0 GA** (Q2 2026): Production release
|
||||
|
||||
---
|
||||
|
||||
## What Makes v2.0 Unique
|
||||
|
||||
After v2.0, dbbackup will be:
|
||||
|
||||
✅ **Only multi-database tool** with full PITR support
|
||||
✅ **Best-in-class UX** (TUI + CLI + Docker + K8s)
|
||||
✅ **Feature parity** with pgBackRest (PostgreSQL)
|
||||
✅ **Superior to mysqldump** with incremental + PITR
|
||||
✅ **Cloud-native** with multi-provider support
|
||||
✅ **Enterprise-ready** with encryption + metrics
|
||||
✅ **Zero-config** for 80% of use cases
|
||||
|
||||
---
|
||||
|
||||
## Contributing
|
||||
|
||||
Want to contribute to v2.0? Check out:
|
||||
- [CONTRIBUTING.md](CONTRIBUTING.md)
|
||||
- [Good First Issues](https://git.uuxo.net/uuxo/dbbackup/issues?labels=good-first-issue)
|
||||
- [v2.0 Milestone](https://git.uuxo.net/uuxo/dbbackup/milestone/2)
|
||||
|
||||
---
|
||||
|
||||
## Questions?
|
||||
|
||||
Open an issue or start a discussion:
|
||||
- Issues: https://git.uuxo.net/uuxo/dbbackup/issues
|
||||
- Discussions: https://git.uuxo.net/uuxo/dbbackup/discussions
|
||||
|
||||
---
|
||||
|
||||
**Next Step:** Sprint 1 - Backup Verification & Retention (January 2026)
|
||||
@@ -1,575 +0,0 @@
|
||||
# Sprint 4 Completion Summary
|
||||
|
||||
**Sprint 4: Azure Blob Storage & Google Cloud Storage Native Support**
|
||||
**Status:** ✅ COMPLETE
|
||||
**Commit:** e484c26
|
||||
**Tag:** v2.0-sprint4
|
||||
**Date:** November 25, 2025
|
||||
|
||||
---
|
||||
|
||||
## Overview
|
||||
|
||||
Sprint 4 successfully implements **full native support** for Azure Blob Storage and Google Cloud Storage, closing the architectural gap identified during Sprint 3 evaluation. The URI parser previously accepted `azure://` and `gs://` URIs but the backend factory could not instantiate them. Sprint 4 delivers complete Azure and GCS backends with production-grade features.
|
||||
|
||||
---
|
||||
|
||||
## What Was Implemented
|
||||
|
||||
### 1. Azure Blob Storage Backend (`internal/cloud/azure.go`) - 410 lines
|
||||
|
||||
**Native Azure SDK Integration:**
|
||||
- Uses `github.com/Azure/azure-sdk-for-go/sdk/storage/azblob` v1.6.3
|
||||
- Full Azure Blob Storage client with shared key authentication
|
||||
- Support for both production Azure and Azurite emulator
|
||||
|
||||
**Block Blob Upload for Large Files:**
|
||||
- Automatic block blob staging for files >256MB
|
||||
- 100MB block size with sequential upload
|
||||
- Base64-encoded block IDs for Azure compatibility
|
||||
- SHA-256 checksum stored as blob metadata
|
||||
|
||||
**Authentication Methods:**
|
||||
- Account name + account key (primary/secondary)
|
||||
- Custom endpoint for Azurite emulator
|
||||
- Default Azurite credentials: `devstoreaccount1`
|
||||
|
||||
**Core Operations:**
|
||||
- `Upload()`: Streaming upload with progress tracking, automatic block staging
|
||||
- `Download()`: Streaming download with progress tracking
|
||||
- `List()`: Paginated blob listing with metadata
|
||||
- `Delete()`: Blob deletion
|
||||
- `Exists()`: Blob existence check with proper 404 handling
|
||||
- `GetSize()`: Blob size retrieval
|
||||
- `Name()`: Returns "azure"
|
||||
|
||||
**Progress Tracking:**
|
||||
- Uses `NewProgressReader()` for consistent progress reporting
|
||||
- Updates every 100ms during transfers
|
||||
- Supports both simple and block blob uploads
|
||||
|
||||
### 2. Google Cloud Storage Backend (`internal/cloud/gcs.go`) - 270 lines
|
||||
|
||||
**Native GCS SDK Integration:**
|
||||
- Uses `cloud.google.com/go/storage` v1.57.2
|
||||
- Full GCS client with multiple authentication methods
|
||||
- Support for both production GCS and fake-gcs-server emulator
|
||||
|
||||
**Chunked Upload for Large Files:**
|
||||
- Automatic chunking with 16MB chunk size
|
||||
- Streaming upload with `NewWriter()`
|
||||
- SHA-256 checksum stored as object metadata
|
||||
|
||||
**Authentication Methods:**
|
||||
- Application Default Credentials (ADC) - recommended
|
||||
- Service account JSON key file
|
||||
- Custom endpoint for fake-gcs-server emulator
|
||||
- Workload Identity for GKE
|
||||
|
||||
**Core Operations:**
|
||||
- `Upload()`: Streaming upload with automatic chunking
|
||||
- `Download()`: Streaming download with progress tracking
|
||||
- `List()`: Paginated object listing with metadata
|
||||
- `Delete()`: Object deletion
|
||||
- `Exists()`: Object existence check with `ErrObjectNotExist`
|
||||
- `GetSize()`: Object size retrieval
|
||||
- `Name()`: Returns "gcs"
|
||||
|
||||
**Progress Tracking:**
|
||||
- Uses `NewProgressReader()` for consistent progress reporting
|
||||
- Supports large file streaming without memory bloat
|
||||
|
||||
### 3. Backend Factory Updates (`internal/cloud/interface.go`)
|
||||
|
||||
**NewBackend() Switch Cases Added:**
|
||||
```go
|
||||
case "azure", "azblob":
|
||||
return NewAzureBackend(cfg)
|
||||
case "gs", "gcs", "google":
|
||||
return NewGCSBackend(cfg)
|
||||
```
|
||||
|
||||
**Updated Error Message:**
|
||||
- Now includes Azure and GCS in supported providers list
|
||||
- Was: `"unsupported cloud provider: %s (supported: s3, minio, b2)"`
|
||||
- Now: `"unsupported cloud provider: %s (supported: s3, minio, b2, azure, gcs)"`
|
||||
|
||||
### 4. Configuration Updates (`internal/config/config.go`)
|
||||
|
||||
**Updated Field Comments:**
|
||||
- `CloudProvider`: Now documents "s3", "minio", "b2", "azure", "gcs"
|
||||
- `CloudBucket`: Changed to "Bucket/container name"
|
||||
- `CloudRegion`: Added "(for S3, GCS)"
|
||||
- `CloudEndpoint`: Added "Azurite, fake-gcs-server"
|
||||
- `CloudAccessKey`: Added "Account name (Azure) / Service account file (GCS)"
|
||||
- `CloudSecretKey`: Added "Account key (Azure)"
|
||||
|
||||
### 5. Azure Testing Infrastructure
|
||||
|
||||
**docker-compose.azurite.yml:**
|
||||
- Azurite emulator on ports 10000-10002
|
||||
- PostgreSQL 16 on port 5434
|
||||
- MySQL 8.0 on port 3308
|
||||
- Health checks for all services
|
||||
- Automatic Azurite startup with loose mode
|
||||
|
||||
**scripts/test_azure_storage.sh - 8 Test Scenarios:**
|
||||
1. PostgreSQL backup to Azure
|
||||
2. MySQL backup to Azure
|
||||
3. List Azure backups
|
||||
4. Verify backup integrity
|
||||
5. Restore from Azure (with data verification)
|
||||
6. Large file upload (300MB with block blob)
|
||||
7. Delete backup from Azure
|
||||
8. Cleanup old backups (retention policy)
|
||||
|
||||
**Test Features:**
|
||||
- Colored output (red/green/yellow/blue)
|
||||
- Exit code tracking (pass/fail counters)
|
||||
- Service startup with health checks
|
||||
- Database test data creation
|
||||
- Cleanup on success, debug mode on failure
|
||||
|
||||
### 6. GCS Testing Infrastructure
|
||||
|
||||
**docker-compose.gcs.yml:**
|
||||
- fake-gcs-server emulator on port 4443
|
||||
- PostgreSQL 16 on port 5435
|
||||
- MySQL 8.0 on port 3309
|
||||
- Health checks for all services
|
||||
- HTTP mode for emulator (no TLS)
|
||||
|
||||
**scripts/test_gcs_storage.sh - 8 Test Scenarios:**
|
||||
1. PostgreSQL backup to GCS
|
||||
2. MySQL backup to GCS
|
||||
3. List GCS backups
|
||||
4. Verify backup integrity
|
||||
5. Restore from GCS (with data verification)
|
||||
6. Large file upload (200MB with chunked upload)
|
||||
7. Delete backup from GCS
|
||||
8. Cleanup old backups (retention policy)
|
||||
|
||||
**Test Features:**
|
||||
- Colored output (red/green/yellow/blue)
|
||||
- Exit code tracking (pass/fail counters)
|
||||
- Automatic bucket creation via curl
|
||||
- Service startup with health checks
|
||||
- Database test data creation
|
||||
- Cleanup on success, debug mode on failure
|
||||
|
||||
### 7. Azure Documentation (`AZURE.md` - 600+ lines)
|
||||
|
||||
**Comprehensive Coverage:**
|
||||
- Quick start guide with 3-step setup
|
||||
- URI syntax and examples
|
||||
- 3 authentication methods (URI params, env vars, connection string)
|
||||
- Container setup and configuration
|
||||
- Access tiers (Hot/Cool/Archive)
|
||||
- Lifecycle management policies
|
||||
- Usage examples (backup, restore, verify, list, cleanup)
|
||||
- Advanced features (block blob upload, progress tracking, concurrent ops)
|
||||
- Azurite emulator setup and testing
|
||||
- Best practices (security, performance, cost, reliability, organization)
|
||||
- Troubleshooting guide with 6 problem categories
|
||||
- Additional resources and support links
|
||||
|
||||
**Key Examples:**
|
||||
- Production Azure backup with account key
|
||||
- Azurite local testing
|
||||
- Scheduled backups with cron
|
||||
- Large file handling (>256MB)
|
||||
- Metadata and checksums
|
||||
|
||||
### 8. GCS Documentation (`GCS.md` - 600+ lines)
|
||||
|
||||
**Comprehensive Coverage:**
|
||||
- Quick start guide with 3-step setup
|
||||
- URI syntax and examples (supports both gs:// and gcs://)
|
||||
- 3 authentication methods (ADC, service account, Workload Identity)
|
||||
- IAM permissions and roles
|
||||
- Bucket setup and configuration
|
||||
- Storage classes (Standard/Nearline/Coldline/Archive)
|
||||
- Lifecycle management policies
|
||||
- Regional configuration
|
||||
- Usage examples (backup, restore, verify, list, cleanup)
|
||||
- Advanced features (chunked upload, progress tracking, versioning, CMEK)
|
||||
- fake-gcs-server emulator setup and testing
|
||||
- Best practices (security, performance, cost, reliability, organization)
|
||||
- Monitoring and alerting with Cloud Monitoring
|
||||
- Troubleshooting guide with 6 problem categories
|
||||
- Additional resources and support links
|
||||
|
||||
**Key Examples:**
|
||||
- ADC authentication (recommended)
|
||||
- Service account JSON key file
|
||||
- Workload Identity for GKE
|
||||
- Scheduled backups with cron and systemd timer
|
||||
- Large file handling (chunked upload)
|
||||
- Object versioning and CMEK
|
||||
|
||||
### 9. Updated Main Cloud Documentation (`CLOUD.md`)
|
||||
|
||||
**Supported Providers List Updated:**
|
||||
- Added "Azure Blob Storage (native support)"
|
||||
- Added "Google Cloud Storage (native support)"
|
||||
|
||||
**URI Syntax Section Updated:**
|
||||
- `azure://` or `azblob://` - Azure Blob Storage (native support)
|
||||
- `gs://` or `gcs://` - Google Cloud Storage (native support)
|
||||
|
||||
**Provider-Specific Setup:**
|
||||
- Replaced GCS S3-compatibility section with native GCS section
|
||||
- Added Azure Blob Storage section with quick start
|
||||
- Both sections link to comprehensive guides (AZURE.md, GCS.md)
|
||||
|
||||
**Features Documented:**
|
||||
- Azure: Block blob upload, Azurite support, native SDK
|
||||
- GCS: Chunked upload, fake-gcs-server support, ADC
|
||||
|
||||
**FAQ Updated:**
|
||||
- Added Azure and GCS to cost comparison table
|
||||
|
||||
**Related Documentation:**
|
||||
- Added links to AZURE.md and GCS.md
|
||||
- Added links to docker-compose files and test scripts
|
||||
|
||||
---
|
||||
|
||||
## Code Statistics
|
||||
|
||||
### Files Created:
|
||||
1. `internal/cloud/azure.go` - 410 lines (Azure backend)
|
||||
2. `internal/cloud/gcs.go` - 270 lines (GCS backend)
|
||||
3. `AZURE.md` - 600+ lines (Azure documentation)
|
||||
4. `GCS.md` - 600+ lines (GCS documentation)
|
||||
5. `docker-compose.azurite.yml` - 68 lines
|
||||
6. `docker-compose.gcs.yml` - 62 lines
|
||||
7. `scripts/test_azure_storage.sh` - 350+ lines
|
||||
8. `scripts/test_gcs_storage.sh` - 350+ lines
|
||||
|
||||
### Files Modified:
|
||||
1. `internal/cloud/interface.go` - Added Azure/GCS cases to NewBackend()
|
||||
2. `internal/config/config.go` - Updated field comments
|
||||
3. `CLOUD.md` - Added Azure/GCS sections
|
||||
4. `go.mod` - Added Azure and GCS dependencies
|
||||
5. `go.sum` - Dependency checksums
|
||||
|
||||
### Total Impact:
|
||||
- **Lines Added:** 2,990
|
||||
- **Lines Modified:** 28
|
||||
- **New Files:** 8
|
||||
- **Modified Files:** 6
|
||||
- **New Dependencies:** ~50 packages (Azure SDK + GCS SDK)
|
||||
- **Binary Size:** 68MB (includes Azure/GCS SDKs)
|
||||
|
||||
---
|
||||
|
||||
## Dependencies Added
|
||||
|
||||
### Azure SDK:
|
||||
```
|
||||
github.com/Azure/azure-sdk-for-go/sdk/azcore v1.20.0
|
||||
github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.6.3
|
||||
github.com/Azure/azure-sdk-for-go/sdk/internal v1.11.2
|
||||
```
|
||||
|
||||
### Google Cloud SDK:
|
||||
```
|
||||
cloud.google.com/go/storage v1.57.2
|
||||
google.golang.org/api v0.256.0
|
||||
cloud.google.com/go/auth v0.17.0
|
||||
cloud.google.com/go/iam v1.5.2
|
||||
google.golang.org/grpc v1.76.0
|
||||
golang.org/x/oauth2 v0.33.0
|
||||
```
|
||||
|
||||
### Transitive Dependencies:
|
||||
- ~50 additional packages for Azure and GCS support
|
||||
- OpenTelemetry instrumentation
|
||||
- gRPC and protobuf
|
||||
- OAuth2 and authentication libraries
|
||||
|
||||
---
|
||||
|
||||
## Testing Verification
|
||||
|
||||
### Build Verification:
|
||||
```bash
|
||||
$ go build -o dbbackup_sprint4 .
|
||||
BUILD SUCCESSFUL
|
||||
$ ls -lh dbbackup_sprint4
|
||||
-rwxr-xr-x. 1 root root 68M Nov 25 21:30 dbbackup_sprint4
|
||||
```
|
||||
|
||||
### Test Scripts Created:
|
||||
1. **Azure:** `./scripts/test_azure_storage.sh`
|
||||
- 8 comprehensive test scenarios
|
||||
- PostgreSQL and MySQL backup/restore
|
||||
- 300MB large file upload (block blob verification)
|
||||
- Retention policy testing
|
||||
|
||||
2. **GCS:** `./scripts/test_gcs_storage.sh`
|
||||
- 8 comprehensive test scenarios
|
||||
- PostgreSQL and MySQL backup/restore
|
||||
- 200MB large file upload (chunked upload verification)
|
||||
- Retention policy testing
|
||||
|
||||
### Integration Test Coverage:
|
||||
- Upload operations with progress tracking
|
||||
- Download operations with verification
|
||||
- Large file handling (block/chunked upload)
|
||||
- Backup integrity verification (SHA-256)
|
||||
- Restore operations with data validation
|
||||
- Cleanup and retention policies
|
||||
- Container/bucket management
|
||||
- Error handling and edge cases
|
||||
|
||||
---
|
||||
|
||||
## URI Support Comparison
|
||||
|
||||
### Before Sprint 4:
|
||||
```bash
|
||||
# These URIs would parse but fail with "unsupported cloud provider"
|
||||
azure://container/backup.sql
|
||||
gs://bucket/backup.sql
|
||||
```
|
||||
|
||||
### After Sprint 4:
|
||||
```bash
|
||||
# Azure URI - FULLY SUPPORTED
|
||||
azure://container/backups/db.sql?account=myaccount&key=ACCOUNT_KEY
|
||||
|
||||
# Azure with Azurite
|
||||
azure://test-backups/db.sql?endpoint=http://localhost:10000
|
||||
|
||||
# GCS URI - FULLY SUPPORTED
|
||||
gs://bucket/backups/db.sql
|
||||
|
||||
# GCS with service account
|
||||
gs://bucket/backups/db.sql?credentials=/path/to/key.json
|
||||
|
||||
# GCS with fake-gcs-server
|
||||
gs://test-backups/db.sql?endpoint=http://localhost:4443/storage/v1
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Multi-Cloud Feature Parity
|
||||
|
||||
| Feature | S3 | MinIO | B2 | Azure | GCS |
|
||||
|---------|----|----|----|----|-----|
|
||||
| Native SDK | ✅ | ✅ | ✅ | ✅ | ✅ |
|
||||
| Multipart Upload | ✅ | ✅ | ✅ | ✅ (Block) | ✅ (Chunked) |
|
||||
| Progress Tracking | ✅ | ✅ | ✅ | ✅ | ✅ |
|
||||
| SHA-256 Checksums | ✅ | ✅ | ✅ | ✅ | ✅ |
|
||||
| Emulator Support | ✅ | ✅ | ❌ | ✅ (Azurite) | ✅ (fake-gcs) |
|
||||
| Test Suite | ✅ | ✅ | ❌ | ✅ (8 tests) | ✅ (8 tests) |
|
||||
| Documentation | ✅ | ✅ | ✅ | ✅ (600+ lines) | ✅ (600+ lines) |
|
||||
| Large Files | ✅ | ✅ | ✅ | ✅ (>256MB) | ✅ (16MB chunks) |
|
||||
| Auto-detect | ✅ | ✅ | ✅ | ✅ | ✅ |
|
||||
|
||||
---
|
||||
|
||||
## Example Usage
|
||||
|
||||
### Azure Backup:
|
||||
```bash
|
||||
# Production Azure
|
||||
dbbackup backup postgres \
|
||||
--host localhost \
|
||||
--database mydb \
|
||||
--cloud "azure://prod-backups/postgres/db.sql?account=myaccount&key=KEY"
|
||||
|
||||
# Azurite emulator
|
||||
dbbackup backup postgres \
|
||||
--host localhost \
|
||||
--database mydb \
|
||||
--cloud "azure://test-backups/db.sql?endpoint=http://localhost:10000"
|
||||
```
|
||||
|
||||
### GCS Backup:
|
||||
```bash
|
||||
# Using Application Default Credentials
|
||||
dbbackup backup postgres \
|
||||
--host localhost \
|
||||
--database mydb \
|
||||
--cloud "gs://prod-backups/postgres/db.sql"
|
||||
|
||||
# With service account
|
||||
dbbackup backup postgres \
|
||||
--host localhost \
|
||||
--database mydb \
|
||||
--cloud "gs://prod-backups/db.sql?credentials=/path/to/key.json"
|
||||
|
||||
# fake-gcs-server emulator
|
||||
dbbackup backup postgres \
|
||||
--host localhost \
|
||||
--database mydb \
|
||||
--cloud "gs://test-backups/db.sql?endpoint=http://localhost:4443/storage/v1"
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Git History
|
||||
|
||||
```bash
|
||||
Commit: e484c26
|
||||
Author: [Your Name]
|
||||
Date: November 25, 2025
|
||||
|
||||
feat: Sprint 4 - Azure Blob Storage and Google Cloud Storage support
|
||||
|
||||
Tag: v2.0-sprint4
|
||||
Files Changed: 14
|
||||
Insertions: 2,990
|
||||
Deletions: 28
|
||||
```
|
||||
|
||||
**Push Status:**
|
||||
- ✅ Pushed to remote: git.uuxo.net:uuxo/dbbackup
|
||||
- ✅ Tag v2.0-sprint4 pushed
|
||||
- ✅ All changes synchronized
|
||||
|
||||
---
|
||||
|
||||
## Architecture Impact
|
||||
|
||||
### Before Sprint 4:
|
||||
```
|
||||
URI Parser ──────► Backend Factory
|
||||
│ │
|
||||
├─ s3:// ├─ S3Backend ✅
|
||||
├─ minio:// ├─ S3Backend (MinIO mode) ✅
|
||||
├─ b2:// ├─ S3Backend (B2 mode) ✅
|
||||
├─ azure:// └─ ERROR ❌
|
||||
└─ gs:// ERROR ❌
|
||||
```
|
||||
|
||||
### After Sprint 4:
|
||||
```
|
||||
URI Parser ──────► Backend Factory
|
||||
│ │
|
||||
├─ s3:// ├─ S3Backend ✅
|
||||
├─ minio:// ├─ S3Backend (MinIO mode) ✅
|
||||
├─ b2:// ├─ S3Backend (B2 mode) ✅
|
||||
├─ azure:// ├─ AzureBackend ✅
|
||||
└─ gs:// └─ GCSBackend ✅
|
||||
```
|
||||
|
||||
**Gap Closed:** URI parser and backend factory now fully aligned.
|
||||
|
||||
---
|
||||
|
||||
## Best Practices Implemented
|
||||
|
||||
### Azure:
|
||||
1. **Security:** Account key in URI params, support for connection strings
|
||||
2. **Performance:** Block blob staging for files >256MB
|
||||
3. **Reliability:** SHA-256 checksums in metadata
|
||||
4. **Testing:** Azurite emulator with full test suite
|
||||
5. **Documentation:** 600+ lines covering all use cases
|
||||
|
||||
### GCS:
|
||||
1. **Security:** ADC preferred, service account JSON support
|
||||
2. **Performance:** 16MB chunked upload for large files
|
||||
3. **Reliability:** SHA-256 checksums in metadata
|
||||
4. **Testing:** fake-gcs-server emulator with full test suite
|
||||
5. **Documentation:** 600+ lines covering all use cases
|
||||
|
||||
---
|
||||
|
||||
## Sprint 4 Objectives - COMPLETE ✅
|
||||
|
||||
| Objective | Status | Notes |
|
||||
|-----------|--------|-------|
|
||||
| Azure backend implementation | ✅ | 410 lines, block blob support |
|
||||
| GCS backend implementation | ✅ | 270 lines, chunked upload |
|
||||
| Backend factory integration | ✅ | NewBackend() updated |
|
||||
| Azure testing infrastructure | ✅ | Azurite + 8 tests |
|
||||
| GCS testing infrastructure | ✅ | fake-gcs-server + 8 tests |
|
||||
| Azure documentation | ✅ | AZURE.md 600+ lines |
|
||||
| GCS documentation | ✅ | GCS.md 600+ lines |
|
||||
| Configuration updates | ✅ | config.go comments |
|
||||
| Build verification | ✅ | 68MB binary |
|
||||
| Git commit and tag | ✅ | e484c26, v2.0-sprint4 |
|
||||
| Remote push | ✅ | git.uuxo.net |
|
||||
|
||||
---
|
||||
|
||||
## Known Limitations
|
||||
|
||||
1. **Container/Bucket Creation:**
|
||||
- Disabled in code (CreateBucket not in Config struct)
|
||||
- Users must create containers/buckets manually
|
||||
- Future enhancement: Add CreateBucket to Config
|
||||
|
||||
2. **Authentication:**
|
||||
- Azure: Limited to account key (no managed identity)
|
||||
- GCS: No metadata server support for GCE VMs
|
||||
- Future enhancement: Support for managed identities
|
||||
|
||||
3. **Advanced Features:**
|
||||
- No support for Azure SAS tokens
|
||||
- No support for GCS signed URLs
|
||||
- No support for lifecycle policies via API
|
||||
- Future enhancement: Policy management
|
||||
|
||||
---
|
||||
|
||||
## Performance Characteristics
|
||||
|
||||
### Azure:
|
||||
- **Small files (<256MB):** Single request upload
|
||||
- **Large files (>256MB):** Block blob staging (100MB blocks)
|
||||
- **Download:** Streaming with progress (no size limit)
|
||||
- **Network:** Efficient with Azure SDK connection pooling
|
||||
|
||||
### GCS:
|
||||
- **All files:** Chunked upload with 16MB chunks
|
||||
- **Upload:** Streaming with `NewWriter()` (no memory bloat)
|
||||
- **Download:** Streaming with progress (no size limit)
|
||||
- **Network:** Efficient with GCS SDK connection pooling
|
||||
|
||||
---
|
||||
|
||||
## Next Steps (Post-Sprint 4)
|
||||
|
||||
### Immediate:
|
||||
1. Run integration tests: `./scripts/test_azure_storage.sh`
|
||||
2. Run integration tests: `./scripts/test_gcs_storage.sh`
|
||||
3. Update README.md with Sprint 4 achievements
|
||||
4. Create Sprint 4 demo video (optional)
|
||||
|
||||
### Future Enhancements:
|
||||
1. Add managed identity support (Azure, GCS)
|
||||
2. Implement SAS token support (Azure)
|
||||
3. Implement signed URL support (GCS)
|
||||
4. Add lifecycle policy management
|
||||
5. Add container/bucket creation to Config
|
||||
6. Optimize block/chunk sizes based on file size
|
||||
7. Add progress reporting to CLI output
|
||||
8. Create performance benchmarks
|
||||
|
||||
### Sprint 5 Candidates:
|
||||
- Cloud-to-cloud transfers
|
||||
- Multi-region replication
|
||||
- Backup encryption at rest
|
||||
- Incremental backups
|
||||
- Point-in-time recovery
|
||||
|
||||
---
|
||||
|
||||
## Conclusion
|
||||
|
||||
Sprint 4 successfully delivers **complete multi-cloud support** for dbbackup v2.0. With native Azure Blob Storage and Google Cloud Storage backends, users can now seamlessly backup to all major cloud providers. The implementation includes production-grade features (block/chunked uploads, progress tracking, integrity verification), comprehensive testing infrastructure (emulators + 16 tests), and extensive documentation (1,200+ lines).
|
||||
|
||||
**Sprint 4 closes the architectural gap** identified during Sprint 3 evaluation, where URI parsing supported Azure and GCS but the backend factory could not instantiate them. The system now provides **consistent** cloud storage experience across S3, MinIO, Backblaze B2, Azure Blob Storage, and Google Cloud Storage.
|
||||
|
||||
**Total Sprint 4 Impact:** 2,990 lines of code, 1,200+ lines of documentation, 16 integration tests, 50+ new dependencies, and **zero** API gaps remaining.
|
||||
|
||||
**Status:** Production-ready for Azure and GCS deployments. ✅
|
||||
|
||||
---
|
||||
|
||||
**Sprint 4 Complete - November 25, 2025**
|
||||
268
STATISTICS.md
268
STATISTICS.md
@@ -1,268 +0,0 @@
|
||||
# Backup and Restore Performance Statistics
|
||||
|
||||
## Test Environment
|
||||
|
||||
**Date:** November 19, 2025
|
||||
|
||||
**System Configuration:**
|
||||
- CPU: 16 cores
|
||||
- RAM: 30 GB
|
||||
- Storage: 301 GB total, 214 GB available
|
||||
- OS: Linux (CentOS/RHEL)
|
||||
- PostgreSQL: 16.10 (target), 13.11 (source)
|
||||
|
||||
## Cluster Backup Performance
|
||||
|
||||
**Operation:** Full cluster backup (17 databases)
|
||||
|
||||
**Start Time:** 04:44:08 UTC
|
||||
**End Time:** 04:56:14 UTC
|
||||
**Duration:** 12 minutes 6 seconds (726 seconds)
|
||||
|
||||
### Backup Results
|
||||
|
||||
| Metric | Value |
|
||||
|--------|-------|
|
||||
| Total Databases | 17 |
|
||||
| Successful | 17 (100%) |
|
||||
| Failed | 0 (0%) |
|
||||
| Uncompressed Size | ~50 GB |
|
||||
| Compressed Archive | 34.4 GB |
|
||||
| Compression Ratio | ~31% reduction |
|
||||
| Throughput | ~47 MB/s |
|
||||
|
||||
### Database Breakdown
|
||||
|
||||
| Database | Size | Backup Time | Special Notes |
|
||||
|----------|------|-------------|---------------|
|
||||
| d7030 | 34.0 GB | ~36 minutes | 35,000 large objects (BLOBs) |
|
||||
| testdb_50gb.sql.gz.sql.gz | 465.2 MB | ~5 minutes | Plain format + streaming compression |
|
||||
| testdb_restore_performance_test.sql.gz.sql.gz | 465.2 MB | ~5 minutes | Plain format + streaming compression |
|
||||
| 14 smaller databases | ~50 MB total | <1 minute | Custom format, minimal data |
|
||||
|
||||
### Backup Configuration
|
||||
|
||||
```
|
||||
Compression Level: 6
|
||||
Parallel Jobs: 16
|
||||
Dump Jobs: 8
|
||||
CPU Workload: Balanced
|
||||
Max Cores: 32 (detected: 16)
|
||||
Format: Automatic selection (custom for <5GB, plain+gzip for >5GB)
|
||||
```
|
||||
|
||||
### Key Features Validated
|
||||
|
||||
1. **Parallel Processing:** Multiple databases backed up concurrently
|
||||
2. **Automatic Format Selection:** Large databases use plain format with external compression
|
||||
3. **Large Object Handling:** 35,000 BLOBs in d7030 backed up successfully
|
||||
4. **Configuration Persistence:** Settings auto-saved to .dbbackup.conf
|
||||
5. **Metrics Collection:** Session summary generated (17 operations, 100% success rate)
|
||||
|
||||
## Cluster Restore Performance
|
||||
|
||||
**Operation:** Full cluster restore from 34.4 GB archive
|
||||
|
||||
**Start Time:** 04:58:27 UTC
|
||||
**End Time:** ~06:10:00 UTC (estimated)
|
||||
**Duration:** ~72 minutes (in progress)
|
||||
|
||||
### Restore Progress
|
||||
|
||||
| Metric | Value |
|
||||
|--------|-------|
|
||||
| Archive Size | 34.4 GB (35 GB on disk) |
|
||||
| Extraction Method | tar.gz with streaming decompression |
|
||||
| Databases to Restore | 17 |
|
||||
| Databases Completed | 16/17 (94%) |
|
||||
| Current Status | Restoring database 17/17 |
|
||||
|
||||
### Database Restore Breakdown
|
||||
|
||||
| Database | Restored Size | Restore Method | Duration | Special Notes |
|
||||
|----------|---------------|----------------|----------|---------------|
|
||||
| d7030 | 42 GB | psql + gunzip | ~48 minutes | 35,000 large objects restored without errors |
|
||||
| testdb_50gb.sql.gz.sql.gz | ~6.7 GB | psql + gunzip | ~15 minutes | Streaming decompression |
|
||||
| testdb_restore_performance_test.sql.gz.sql.gz | ~6.7 GB | psql + gunzip | ~15 minutes | Final database (in progress) |
|
||||
| 14 smaller databases | <100 MB each | pg_restore | <5 seconds each | Custom format dumps |
|
||||
|
||||
### Restore Configuration
|
||||
|
||||
```
|
||||
Method: Sequential (automatic detection of large objects)
|
||||
Jobs: Reduced to prevent lock contention
|
||||
Safety: Clean restore (drop existing databases)
|
||||
Validation: Pre-flight disk space checks
|
||||
Error Handling: Ignorable errors allowed, critical errors fail fast
|
||||
```
|
||||
|
||||
### Critical Fixes Validated
|
||||
|
||||
1. **No Lock Exhaustion:** d7030 with 35,000 large objects restored successfully
|
||||
- Previous issue: --single-transaction held all locks simultaneously
|
||||
- Fix: Removed --single-transaction flag
|
||||
- Result: Each object restored in separate transaction, locks released incrementally
|
||||
|
||||
2. **Proper Error Handling:** No false failures
|
||||
- Previous issue: --exit-on-error treated "already exists" as fatal
|
||||
- Fix: Removed flag, added isIgnorableError() classification with regex patterns
|
||||
- Result: PostgreSQL continues on ignorable errors as designed
|
||||
|
||||
3. **Process Cleanup:** Zero orphaned processes
|
||||
- Fix: Parent context propagation + explicit cleanup scan
|
||||
- Result: All pg_restore/psql processes terminated cleanly
|
||||
|
||||
4. **Memory Efficiency:** Constant ~1GB usage regardless of database size
|
||||
- Method: Streaming command output
|
||||
- Result: 42GB database restored with minimal memory footprint
|
||||
|
||||
## Performance Analysis
|
||||
|
||||
### Backup Performance
|
||||
|
||||
**Strengths:**
|
||||
- Fast parallel backup of small databases (completed in seconds)
|
||||
- Efficient handling of large databases with streaming compression
|
||||
- Automatic format selection optimizes for size vs. speed
|
||||
- Perfect success rate (17/17 databases)
|
||||
|
||||
**Throughput:**
|
||||
- Overall: ~47 MB/s average
|
||||
- d7030 (42GB database): ~19 MB/s sustained
|
||||
|
||||
### Restore Performance
|
||||
|
||||
**Strengths:**
|
||||
- Smart detection of large objects triggers sequential restore
|
||||
- No lock contention issues with 35,000 large objects
|
||||
- Clean database recreation ensures consistent state
|
||||
- Progress tracking with accurate ETA
|
||||
|
||||
**Throughput:**
|
||||
- Overall: ~8 MB/s average (decompression + restore)
|
||||
- d7030 restore: ~15 MB/s sustained
|
||||
- Small databases: Near-instantaneous (<5 seconds each)
|
||||
|
||||
### Bottlenecks Identified
|
||||
|
||||
1. **Large Object Restore:** Sequential processing required to prevent lock exhaustion
|
||||
- Impact: d7030 took ~48 minutes (single-threaded)
|
||||
- Mitigation: Necessary trade-off for data integrity
|
||||
|
||||
2. **Decompression Overhead:** gzip decompression is CPU-intensive
|
||||
- Impact: ~40% slower than uncompressed restore
|
||||
- Mitigation: Using pigz for parallel compression where available
|
||||
|
||||
## Reliability Improvements Validated
|
||||
|
||||
### Context Cleanup
|
||||
- **Implementation:** sync.Once + io.Closer interface
|
||||
- **Result:** No memory leaks, proper resource cleanup on exit
|
||||
|
||||
### Error Classification
|
||||
- **Implementation:** Regex-based pattern matching (6 error categories)
|
||||
- **Result:** Robust error handling, no false positives
|
||||
|
||||
### Process Management
|
||||
- **Implementation:** Thread-safe ProcessManager with mutex
|
||||
- **Result:** Zero orphaned processes on Ctrl+C
|
||||
|
||||
### Disk Space Caching
|
||||
- **Implementation:** 30-second TTL cache
|
||||
- **Result:** ~90% reduction in syscall overhead for repeated checks
|
||||
|
||||
### Metrics Collection
|
||||
- **Implementation:** Structured logging with operation metrics
|
||||
- **Result:** Complete observability with success rates, throughput, error counts
|
||||
|
||||
## Real-World Test Results
|
||||
|
||||
### Production Database (d7030)
|
||||
|
||||
**Characteristics:**
|
||||
- Size: 42 GB
|
||||
- Large Objects: 35,000 BLOBs
|
||||
- Schema: Complex with foreign keys, indexes, constraints
|
||||
|
||||
**Backup Results:**
|
||||
- Time: 36 minutes
|
||||
- Compressed Size: 31.3 GB (25.7% compression)
|
||||
- Success: 100%
|
||||
- Errors: None
|
||||
|
||||
**Restore Results:**
|
||||
- Time: 48 minutes
|
||||
- Final Size: 42 GB
|
||||
- Large Objects Verified: 35,000
|
||||
- Success: 100%
|
||||
- Errors: None (all "already exists" warnings properly ignored)
|
||||
|
||||
### Configuration Persistence
|
||||
|
||||
**Feature:** Auto-save/load settings per directory
|
||||
|
||||
**Test Results:**
|
||||
- Config saved after successful backup: Yes
|
||||
- Config loaded on next run: Yes
|
||||
- Override with flags: Yes
|
||||
- Security (passwords excluded): Yes
|
||||
|
||||
**Sample .dbbackup.conf:**
|
||||
```ini
|
||||
[database]
|
||||
type = postgres
|
||||
host = localhost
|
||||
port = 5432
|
||||
user = postgres
|
||||
database = postgres
|
||||
ssl_mode = prefer
|
||||
|
||||
[backup]
|
||||
backup_dir = /var/lib/pgsql/db_backups
|
||||
compression = 6
|
||||
jobs = 16
|
||||
dump_jobs = 8
|
||||
|
||||
[performance]
|
||||
cpu_workload = balanced
|
||||
max_cores = 32
|
||||
```
|
||||
|
||||
## Cross-Platform Compatibility
|
||||
|
||||
**Platforms Tested:**
|
||||
- Linux x86_64: Success
|
||||
- Build verification: 9/10 platforms compile successfully
|
||||
|
||||
**Supported Platforms:**
|
||||
- Linux (Intel/AMD 64-bit, ARM64, ARMv7)
|
||||
- macOS (Intel 64-bit, Apple Silicon ARM64)
|
||||
- Windows (Intel/AMD 64-bit, ARM64)
|
||||
- FreeBSD (Intel/AMD 64-bit)
|
||||
- OpenBSD (Intel/AMD 64-bit)
|
||||
|
||||
## Conclusion
|
||||
|
||||
The backup and restore system demonstrates production-ready performance and reliability:
|
||||
|
||||
1. **Scalability:** Successfully handles databases from megabytes to 42+ gigabytes
|
||||
2. **Reliability:** 100% success rate across 17 databases, zero errors
|
||||
3. **Efficiency:** Constant memory usage (~1GB) regardless of database size
|
||||
4. **Safety:** Comprehensive validation, error handling, and process management
|
||||
5. **Usability:** Configuration persistence, progress tracking, intelligent defaults
|
||||
|
||||
**Critical Fixes Verified:**
|
||||
- Large object restore works correctly (35,000 objects)
|
||||
- No lock exhaustion issues
|
||||
- Proper error classification
|
||||
- Clean process cleanup
|
||||
- All reliability improvements functioning as designed
|
||||
|
||||
**Recommended Use Cases:**
|
||||
- Production database backups (any size)
|
||||
- Disaster recovery operations
|
||||
- Database migration and cloning
|
||||
- Development/staging environment synchronization
|
||||
- Automated backup schedules via cron/systemd
|
||||
|
||||
The system is production-ready for PostgreSQL clusters of any size.
|
||||
Reference in New Issue
Block a user