From f81359a4e3952db96861e40f47516abcb39a2ca4 Mon Sep 17 00:00:00 2001 From: Renz Date: Wed, 26 Nov 2025 16:11:29 +0000 Subject: [PATCH] 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(internal dev log) - SPRINT4_COMPLETION.md (internal dev log) - STATISTICS.md (old test statistics) - ROADMAP.md (outdated v2.0 roadmap) - RELEASE_NOTES_v2.1.0.md (superseded by v3.1) Removed development binaries (360MB+): - dbbackup (67MB) - dbbackup_phase2 (67MB) - dbbackup_phase3 (67MB) - dbbackup_phase4 (67MB) - dbbackup_sprint4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 --- .gitignore | 24 ++ PHASE3B_COMPLETION.md | 271 ------------------- PHASE4_COMPLETION.md | 283 -------------------- RELEASE_NOTES_v2.1.0.md | 275 ------------------- ROADMAP.md | 523 ------------------------------------ SPRINT4_COMPLETION.md | 575 ---------------------------------------- STATISTICS.md | 268 ------------------- 7 files changed, 24 insertions(+), 2195 deletions(-) delete mode 100644 PHASE3B_COMPLETION.md delete mode 100644 PHASE4_COMPLETION.md delete mode 100644 RELEASE_NOTES_v2.1.0.md delete mode 100644 ROADMAP.md delete mode 100644 SPRINT4_COMPLETION.md delete mode 100755 STATISTICS.md diff --git a/.gitignore b/.gitignore index ed627c2..5b52e44 100755 --- a/.gitignore +++ b/.gitignore @@ -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/ +temp/ diff --git a/PHASE3B_COMPLETION.md b/PHASE3B_COMPLETION.md deleted file mode 100644 index 15cc6c0..0000000 --- a/PHASE3B_COMPLETION.md +++ /dev/null @@ -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 - -βœ… **Step 1:** MySQL Change Detection (15 min vs 1h est) -βœ… **Step 2:** MySQL Create/Restore Functions (10 min vs 1.5h est) -βœ… **Step 3:** CLI Integration (5 min vs 30 min est) -βœ… **Step 4:** Tests (5 min - reused existing, both PASS) -βœ… **Step 5:** Validation (N/A - tests sufficient) - -**Total: 30 minutes vs 5-6 hours estimated = 10x faster!** πŸš€ - ---- - -## πŸ“¦ 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:** -- βœ… Relay logs (`relay-log`, `relay-bin*`) -- βœ… Binary logs (`mysql-bin*`, `binlog*`) -- βœ… InnoDB redo logs (`ib_logfile*`) -- βœ… InnoDB undo logs (`undo_*`) -- βœ… Performance schema (in-memory) -- βœ… Temporary files (`#sql*`, `*.tmp`) -- βœ… Lock files (`*.lock`, `auto.cnf.lock`) -- βœ… PID files (`*.pid`, `mysqld.pid`) -- βœ… Error logs (`*.err`, `error.log`) -- βœ… Slow query logs (`*slow*.log`) -- βœ… General logs (`general.log`, `query.log`) -- βœ… 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:** βœ… All tests PASS (0.448s) - -``` -=== RUN TestIncrementalBackupRestore - βœ… Step 1: Creating test data files... - βœ… Step 2: Creating base backup... - βœ… Step 3: Modifying data files... - βœ… Step 4: Finding changed files... (Found 5 changed files) - βœ… Step 5: Creating incremental backup... - βœ… Step 6: Restoring incremental backup... - βœ… Step 7: Verifying restored files... ---- PASS: TestIncrementalBackupRestore (0.42s) - -=== RUN TestIncrementalBackupErrors - βœ… Missing_base_backup - βœ… 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 - ---- - -## πŸš€ 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 β†’ 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** -- βœ… Detects MySQL/MariaDB vs PostgreSQL automatically -- βœ… Uses appropriate engine (MySQLIncrementalEngine vs PostgresIncrementalEngine) -- βœ… 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!** πŸš€ | - ---- - -## πŸ”‘ 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** πŸš€ - - High energy, high momentum - - No overthinking, just execute - - Copy first, adapt second - ---- - -## πŸ“Š 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:** βœ… Interface-based tests pass immediately - ---- - -## βœ… 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 - ---- - -## πŸŽ‰ Phase 3B Status: **COMPLETE** - -**Feature Parity Achieved:** -- βœ… PostgreSQL incremental backups (Phase 3A) -- βœ… MySQL incremental backups (Phase 3B) -- βœ… Same interface, same CLI, same metadata format -- βœ… Both tested and working - -**Next Phase:** Release v3.0 Prep (Day 2 of Week 1) - ---- - -## πŸ“ Week 1 Progress Update - -``` -Day 1 (6h): β¬… YOU ARE HERE -β”œβ”€ βœ… Phase 4: Encryption validation (1h) - DONE! -└─ βœ… Phase 3B: MySQL Incremental (5h) - DONE in 30min! ⚑ - -Day 2 (3h): -β”œβ”€ Phase 3B: Complete & test (1h) - SKIPPED (already done!) -└─ Release v3.0 prep (2h) - NEXT! - β”œβ”€ README update - β”œβ”€ CHANGELOG - β”œβ”€ Docs complete - └─ Git tag v3.0 -``` - -**Time Savings:** 4.5 hours saved on Day 1! -**Momentum:** EXTREMELY HIGH πŸš€ -**Energy:** Still fresh! - ---- - -## πŸ† Achievement Unlocked - -**"Lightning Fast Implementation"** ⚑ -- Estimated: 5-6 hours -- Actual: 30 minutes -- Speedup: 10x faster! -- Quality: All tests passing βœ… -- 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!** πŸš€ diff --git a/PHASE4_COMPLETION.md b/PHASE4_COMPLETION.md deleted file mode 100644 index 6f19660..0000000 --- a/PHASE4_COMPLETION.md +++ /dev/null @@ -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 - -βœ… **Task 1:** Encryption Interface Design (1h) -βœ… **Task 2:** AES-256-GCM Implementation (2h) -βœ… **Task 3:** CLI Integration - Backup (1h) -βœ… **Task 4:** Metadata Updates (30min) -βœ… **Task 5:** Testing (1h) -βœ… **Task 6:** CLI Integration - Restore (30min) - ---- - -## πŸ“¦ 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 ` - Key file path - - `--encryption-key-env ` - 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:** - - βœ… Encryption roundtrip test passed - - βœ… Original content ≑ Decrypted content - - βœ… Build successful - - βœ… All crypto tests passing - ---- - -## πŸ” 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** -- βœ… Authenticated encryption (prevents tampering) -- βœ… Unique nonce per encryption -- βœ… Strong key derivation (600k iterations) -- βœ… Cryptographically secure random generation -- βœ… Memory-efficient streaming (no full file load) -- βœ… Key validation (32 bytes required) - ---- - -## πŸ“‹ 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 -``` - ---- - -## πŸ§ͺ 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** -``` -πŸ” Testing encryption... -βœ… Encryption successful - Encrypted file size: 63 bytes - -πŸ”“ Testing decryption... -βœ… Decryption successful - -βœ… 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 . -βœ… 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) - ---- - -## πŸ“ 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) - ---- - -## πŸš€ 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 -``` - ---- - -## βœ… 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 β†’ decrypt β†’ verify) -- [x] Build success (no errors) -- [x] Documentation (this report) -- [x] Git commits (3 commits) -- [x] Pushed to remote - ---- - -## πŸŽ‰ Phase 4 Status: **COMPLETE** - -**Next Phase:** Phase 3B - MySQL Incremental Backups (Day 1 of Week 1) - ---- - -## πŸ“Š Phase 4 vs Plan - -| Task | Planned | Actual | Status | -|------|---------|--------|--------| -| Interface Design | 1h | 1h | βœ… | -| AES-256 Impl | 2h | 2h | βœ… | -| CLI Integration (Backup) | 1h | 1h | βœ… | -| Metadata Update | 30min | 30min | βœ… | -| Testing | 1h | 1h | βœ… | -| CLI Integration (Restore) | - | 30min | βœ… Bonus | -| **Total** | **5.5h** | **6h** | βœ… **On Schedule** | - ---- - -**Phase 4 encryption is production-ready!** 🎊 diff --git a/RELEASE_NOTES_v2.1.0.md b/RELEASE_NOTES_v2.1.0.md deleted file mode 100644 index 8f55924..0000000 --- a/RELEASE_NOTES_v2.1.0.md +++ /dev/null @@ -1,275 +0,0 @@ -# dbbackup v2.1.0 Release Notes - -**Release Date:** November 26, 2025 -**Git Tag:** v2.1.0 -**Commit:** 3a08b90 - ---- - -## πŸŽ‰ 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** β†’ 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: -- βœ… Linux (x64, ARM64, ARMv7) -- βœ… macOS (Intel, Apple Silicon) -- βœ… Windows (x64, ARM64) -- βœ… FreeBSD (x64) -- βœ… OpenBSD (x64) -- βœ… NetBSD (x64) - -**Fixed Issues:** -- Windows: syscall.Rlimit compatibility -- BSD: int64/uint64 type conversions -- OpenBSD: RLIMIT_AS unavailable -- NetBSD: syscall.Statfs API differences - ---- - -## πŸ“‹ 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 -- βœ… Streaming compression (constant memory usage) -- βœ… Parallel processing (auto CPU detection) -- βœ… SHA-256 verification -- βœ… JSON metadata (.info files) -- βœ… Retention policies (cleanup old backups) -- βœ… Interactive TUI with progress tracking -- βœ… Configuration persistence (.dbbackup.conf) -- βœ… Cloud auto-upload -- βœ… Multipart uploads (>100MB) -- βœ… Progress tracking with ETA - ---- - -## πŸš€ 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 -``` - ---- - -## πŸ“¦ 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/ -``` - ---- - -## πŸ§ͺ 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 -``` - ---- - -## πŸ“š 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 - ---- - -## πŸ”„ 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` β†’ Settings β†’ Cloud Storage -3. (Optional) Configure provider, bucket, credentials -4. Existing local backups remain unchanged - ---- - -## πŸ› Known Issues - -None at this time. All 10 platforms building successfully. - -**Report issues:** https://git.uuxo.net/uuxo/dbbackup/issues - ---- - -## πŸ—ΊοΈ 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 - ---- - -## πŸ‘₯ Contributors - -- uuxo (maintainer) - ---- - -## πŸ“„ License - -See LICENSE file in repository. - ---- - -**Full Changelog:** https://git.uuxo.net/uuxo/dbbackup/src/branch/main/CHANGELOG.md diff --git a/ROADMAP.md b/ROADMAP.md deleted file mode 100644 index 905f4f5..0000000 --- a/ROADMAP.md +++ /dev/null @@ -1,523 +0,0 @@ -# dbbackup Version 2.0 Roadmap - -## Current Status: v1.1 (Production Ready) -- βœ… 24/24 automated tests passing (100%) -- βœ… PostgreSQL, MySQL, MariaDB support -- βœ… Interactive TUI + CLI -- βœ… Cluster backup/restore -- βœ… Docker support -- βœ… 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 - β”‚ - β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β” - β”‚ β”‚ β”‚ - β”‚ Cloud Storage ⭐ β”‚ Incremental ⭐⭐⭐ β”‚ - β”‚ Verification β”‚ PITR ⭐⭐⭐ β”‚ - β”‚ Retention β”‚ Encryption ⭐⭐ β”‚ -LOW β”‚ β”‚ β”‚ HIGH -EFFORT ─────────────────┼──────────────────── EFFORT - β”‚ β”‚ β”‚ - β”‚ Metrics β”‚ Web UI (optional) β”‚ - β”‚ Remote Restore β”‚ Replication Slots β”‚ - β”‚ β”‚ β”‚ - β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜ - β”‚ - 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:** -- βœ… Generate SHA-256 checksums during backup -- βœ… Verify backups before/after restore -- βœ… Automatic cleanup of old backups -- βœ… Retention policy: days + minimum count -- βœ… 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:** -- βœ… AWS S3 -- βœ… MinIO (S3-compatible) -- βœ… Backblaze B2 -- βœ… Azure Blob Storage (optional) -- βœ… 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) - β”œβ”€ Incremental 1 (changed files since base) - β”œβ”€ Incremental 2 (changed files since inc1) - └─ Incremental 3 (changed files since inc2) -``` - -**MySQL Strategy:** -``` -Full Backup - β”œβ”€ Binary Log 1 (changes since full) - β”œβ”€ 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/ -β”œβ”€β”€ mydb_full_20260115.dump -β”œβ”€β”€ mydb_full_20260115.meta -β”œβ”€β”€ mydb_incr_20260116.dump # Contains only changes -β”œβ”€β”€ 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:** -- βœ… AES-256-GCM encryption -- βœ… Argon2 key derivation -- βœ… Multiple key sources (file, env, vault) -- βœ… 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/ -β”œβ”€β”€ 000000010000000000000001 -β”œβ”€β”€ 000000010000000000000002 -β”œβ”€β”€ 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/ -β”œβ”€β”€ cloud/ # Cloud storage backends -β”‚ β”œβ”€β”€ interface.go -β”‚ β”œβ”€β”€ s3.go -β”‚ β”œβ”€β”€ azure.go -β”‚ └── gcs.go -β”œβ”€β”€ encryption/ # Encryption layer -β”‚ β”œβ”€β”€ aes.go -β”‚ β”œβ”€β”€ keys.go -β”‚ └── vault.go -β”œβ”€β”€ incremental/ # Incremental backup engine -β”‚ β”œβ”€β”€ postgres.go -β”‚ └── mysql.go -β”œβ”€β”€ pitr/ # Point-in-time recovery -β”‚ β”œβ”€β”€ wal.go -β”‚ β”œβ”€β”€ binlog.go -β”‚ └── timeline.go -β”œβ”€β”€ verification/ # Backup verification -β”‚ β”œβ”€β”€ checksum.go -β”‚ └── validate.go -β”œβ”€β”€ retention/ # Retention policy -β”‚ └── cleanup.go -β”œβ”€β”€ metrics/ # Prometheus metrics -β”‚ └── 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 β†’ v2.0 Compatibility -- βœ… All v1.x backups readable in v2.0 -- βœ… Configuration auto-migration -- βœ… Metadata format upgrade -- βœ… 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: - -βœ… **Only multi-database tool** with full PITR support -βœ… **Best-in-class UX** (TUI + CLI + Docker + K8s) -βœ… **Feature parity** with pgBackRest (PostgreSQL) -βœ… **Superior to mysqldump** with incremental + PITR -βœ… **Cloud-native** with multi-provider support -βœ… **Enterprise-ready** with encryption + metrics -βœ… **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) diff --git a/SPRINT4_COMPLETION.md b/SPRINT4_COMPLETION.md deleted file mode 100644 index d9bccac..0000000 --- a/SPRINT4_COMPLETION.md +++ /dev/null @@ -1,575 +0,0 @@ -# Sprint 4 Completion Summary - -**Sprint 4: Azure Blob Storage & Google Cloud Storage Native Support** -**Status:** βœ… 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 | βœ… | βœ… | βœ… | βœ… | βœ… | -| Multipart Upload | βœ… | βœ… | βœ… | βœ… (Block) | βœ… (Chunked) | -| Progress Tracking | βœ… | βœ… | βœ… | βœ… | βœ… | -| SHA-256 Checksums | βœ… | βœ… | βœ… | βœ… | βœ… | -| Emulator Support | βœ… | βœ… | ❌ | βœ… (Azurite) | βœ… (fake-gcs) | -| Test Suite | βœ… | βœ… | ❌ | βœ… (8 tests) | βœ… (8 tests) | -| Documentation | βœ… | βœ… | βœ… | βœ… (600+ lines) | βœ… (600+ lines) | -| Large Files | βœ… | βœ… | βœ… | βœ… (>256MB) | βœ… (16MB chunks) | -| Auto-detect | βœ… | βœ… | βœ… | βœ… | βœ… | - ---- - -## 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:** -- βœ… Pushed to remote: git.uuxo.net:uuxo/dbbackup -- βœ… Tag v2.0-sprint4 pushed -- βœ… All changes synchronized - ---- - -## Architecture Impact - -### Before Sprint 4: -``` -URI Parser ──────► Backend Factory - β”‚ β”‚ - β”œβ”€ s3:// β”œβ”€ S3Backend βœ… - β”œβ”€ minio:// β”œβ”€ S3Backend (MinIO mode) βœ… - β”œβ”€ b2:// β”œβ”€ S3Backend (B2 mode) βœ… - β”œβ”€ azure:// └─ ERROR ❌ - └─ gs:// ERROR ❌ -``` - -### After Sprint 4: -``` -URI Parser ──────► Backend Factory - β”‚ β”‚ - β”œβ”€ s3:// β”œβ”€ S3Backend βœ… - β”œβ”€ minio:// β”œβ”€ S3Backend (MinIO mode) βœ… - β”œβ”€ b2:// β”œβ”€ S3Backend (B2 mode) βœ… - β”œβ”€ azure:// β”œβ”€ AzureBackend βœ… - └─ gs:// └─ GCSBackend βœ… -``` - -**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 βœ… - -| Objective | Status | Notes | -|-----------|--------|-------| -| Azure backend implementation | βœ… | 410 lines, block blob support | -| GCS backend implementation | βœ… | 270 lines, chunked upload | -| Backend factory integration | βœ… | NewBackend() updated | -| Azure testing infrastructure | βœ… | Azurite + 8 tests | -| GCS testing infrastructure | βœ… | fake-gcs-server + 8 tests | -| Azure documentation | βœ… | AZURE.md 600+ lines | -| GCS documentation | βœ… | GCS.md 600+ lines | -| Configuration updates | βœ… | config.go comments | -| Build verification | βœ… | 68MB binary | -| Git commit and tag | βœ… | e484c26, v2.0-sprint4 | -| Remote push | βœ… | 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. βœ… - ---- - -**Sprint 4 Complete - November 25, 2025** diff --git a/STATISTICS.md b/STATISTICS.md deleted file mode 100755 index 198e64c..0000000 --- a/STATISTICS.md +++ /dev/null @@ -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.