704 lines
18 KiB
Markdown
704 lines
18 KiB
Markdown
# dbbackup
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Database backup and restore utility for PostgreSQL, MySQL, and MariaDB.
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[](https://opensource.org/licenses/Apache-2.0)
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[](https://golang.org/)
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**Repository:** https://git.uuxo.net/UUXO/dbbackup
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**Mirror:** https://github.com/PlusOne/dbbackup
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## Features
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- Multi-database support: PostgreSQL, MySQL, MariaDB
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- Backup modes: Single database, cluster, sample data
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- **Dry-run mode**: Preflight checks before backup execution
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- AES-256-GCM encryption
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- Incremental backups
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- Cloud storage: S3, MinIO, B2, Azure Blob, Google Cloud Storage
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- Point-in-Time Recovery (PITR) for PostgreSQL and MySQL/MariaDB
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- **GFS retention policies**: Grandfather-Father-Son backup rotation
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- **Notifications**: SMTP email and webhook alerts
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- Interactive terminal UI
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- Cross-platform binaries
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### Enterprise DBA Features
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- **Backup Catalog**: SQLite-based catalog tracking all backups with gap detection
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- **DR Drill Testing**: Automated disaster recovery testing in Docker containers
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- **Smart Notifications**: Batched alerts with escalation policies
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- **Compliance Reports**: SOC2, GDPR, HIPAA, PCI-DSS, ISO27001 report generation
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- **RTO/RPO Calculator**: Recovery objective analysis and recommendations
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- **Replica-Aware Backup**: Automatic backup from replicas to reduce primary load
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- **Parallel Table Backup**: Concurrent table dumps for faster backups
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## Installation
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### Docker
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```bash
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docker pull git.uuxo.net/UUXO/dbbackup:latest
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# PostgreSQL backup
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docker run --rm \
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-v $(pwd)/backups:/backups \
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-e PGHOST=your-host \
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-e PGUSER=postgres \
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-e PGPASSWORD=secret \
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git.uuxo.net/UUXO/dbbackup:latest backup single mydb
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```
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### Binary Download
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Download from [releases](https://git.uuxo.net/UUXO/dbbackup/releases):
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```bash
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# Linux x86_64
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wget https://git.uuxo.net/UUXO/dbbackup/releases/download/v3.2.0/dbbackup-linux-amd64
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chmod +x dbbackup-linux-amd64
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sudo mv dbbackup-linux-amd64 /usr/local/bin/dbbackup
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```
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Available platforms: Linux (amd64, arm64, armv7), macOS (amd64, arm64), FreeBSD, OpenBSD, NetBSD.
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### Build from Source
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```bash
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git clone https://git.uuxo.net/UUXO/dbbackup.git
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cd dbbackup
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go build
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```
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## Usage
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### Interactive Mode
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```bash
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# PostgreSQL with peer authentication
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sudo -u postgres dbbackup interactive
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# MySQL/MariaDB
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dbbackup interactive --db-type mysql --user root --password secret
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```
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**Main Menu:**
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```
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Database Backup Tool - Interactive Menu
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Target Engine: PostgreSQL | MySQL | MariaDB
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Database: postgres@localhost:5432 (PostgreSQL)
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> Single Database Backup
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Sample Database Backup (with ratio)
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Cluster Backup (all databases)
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────────────────────────────────
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Restore Single Database
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Restore Cluster Backup
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List & Manage Backups
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────────────────────────────────
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View Active Operations
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Show Operation History
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Database Status & Health Check
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Configuration Settings
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Clear Operation History
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Quit
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```
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**Database Selection:**
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```
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Single Database Backup
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Select database to backup:
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> production_db (245 MB)
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analytics_db (1.2 GB)
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users_db (89 MB)
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inventory_db (456 MB)
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Enter: Select | Esc: Back
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```
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**Backup Execution:**
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```
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Backup Execution
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Type: Single Database
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Database: production_db
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Duration: 2m 35s
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Backing up database 'production_db'...
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```
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**Backup Complete:**
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```
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Backup Execution
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Type: Cluster Backup
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Duration: 8m 12s
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Backup completed successfully!
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Backup created: cluster_20251128_092928.tar.gz
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Size: 22.5 GB (compressed)
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Location: /u01/dba/dumps/
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Databases: 7
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Checksum: SHA-256 verified
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```
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**Restore Preview:**
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```
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Cluster Restore Preview
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Archive Information
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File: cluster_20251128_092928.tar.gz
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Format: PostgreSQL Cluster (tar.gz)
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Size: 22.5 GB
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Cluster Restore Options
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Host: localhost:5432
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Existing Databases: 5 found
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Clean All First: true
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Safety Checks
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[OK] Archive integrity verified
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[OK] Disk space: 140 GB available
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[OK] Required tools found
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[OK] Target database accessible
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c: Toggle cleanup | Enter: Proceed | Esc: Cancel
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```
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**Backup Manager:**
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```
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Backup Archive Manager
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Total Archives: 15 | Total Size: 156.8 GB
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FILENAME FORMAT SIZE MODIFIED
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─────────────────────────────────────────────────────────────────────────────────
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> [OK] cluster_20250115.tar.gz PostgreSQL Cluster 18.5 GB 2025-01-15
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[OK] myapp_prod_20250114.dump.gz PostgreSQL Custom 12.3 GB 2025-01-14
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[!!] users_db_20241220.dump.gz PostgreSQL Custom 850 MB 2024-12-20
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r: Restore | v: Verify | i: Info | d: Delete | R: Refresh | Esc: Back
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```
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**Configuration Settings:**
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```
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Configuration Settings
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> Database Type: postgres
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CPU Workload Type: balanced
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Backup Directory: /root/db_backups
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Compression Level: 6
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Parallel Jobs: 16
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Dump Jobs: 8
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Database Host: localhost
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Database Port: 5432
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Database User: root
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SSL Mode: prefer
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s: Save | r: Reset | q: Menu
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```
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**Database Status:**
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```
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Database Status & Health Check
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Connection Status: Connected
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Database Type: PostgreSQL
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Host: localhost:5432
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User: postgres
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Version: PostgreSQL 17.2
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Databases Found: 5
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All systems operational
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```
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### Command Line
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```bash
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# Single database backup
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dbbackup backup single myapp_db
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# Cluster backup (PostgreSQL)
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dbbackup backup cluster
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# Sample backup (reduced data for testing)
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dbbackup backup sample myapp_db --sample-strategy percent --sample-value 10
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# Encrypted backup
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dbbackup backup single myapp_db --encrypt --encryption-key-file key.txt
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# Incremental backup
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dbbackup backup single myapp_db --backup-type incremental --base-backup base.tar.gz
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# Restore single database
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dbbackup restore single backup.dump --target myapp_db --create --confirm
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# Restore cluster
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dbbackup restore cluster cluster_backup.tar.gz --confirm
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# Cloud backup
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dbbackup backup single mydb --cloud s3://my-bucket/backups/
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# Dry-run mode (preflight checks without execution)
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dbbackup backup single mydb --dry-run
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```
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## Commands
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| Command | Description |
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|---------|-------------|
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| `backup single` | Backup single database |
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| `backup cluster` | Backup all databases (PostgreSQL) |
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| `backup sample` | Backup with reduced data |
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| `restore single` | Restore single database |
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| `restore cluster` | Restore full cluster |
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| `restore pitr` | Point-in-Time Recovery |
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| `verify-backup` | Verify backup integrity |
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| `cleanup` | Remove old backups |
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| `status` | Check connection status |
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| `preflight` | Run pre-backup checks |
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| `list` | List databases and backups |
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| `cpu` | Show CPU optimization settings |
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| `cloud` | Cloud storage operations |
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| `pitr` | PITR management |
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| `wal` | WAL archive operations |
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| `interactive` | Start interactive UI |
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| `catalog` | Backup catalog management |
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| `drill` | DR drill testing |
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| `report` | Compliance report generation |
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| `rto` | RTO/RPO analysis |
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## Global Flags
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| Flag | Description | Default |
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|------|-------------|---------|
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| `-d, --db-type` | Database type (postgres, mysql, mariadb) | postgres |
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| `--host` | Database host | localhost |
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| `--port` | Database port | 5432/3306 |
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| `--user` | Database user | current user |
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| `--password` | Database password | - |
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| `--backup-dir` | Backup directory | ~/db_backups |
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| `--compression` | Compression level (0-9) | 6 |
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| `--jobs` | Parallel jobs | 8 |
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| `--cloud` | Cloud storage URI | - |
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| `--encrypt` | Enable encryption | false |
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| `--dry-run, -n` | Run preflight checks only | false |
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| `--notify` | Enable notifications | false |
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| `--debug` | Enable debug logging | false |
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## Encryption
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AES-256-GCM encryption for secure backups:
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```bash
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# Generate key
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head -c 32 /dev/urandom | base64 > encryption.key
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# Backup with encryption
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dbbackup backup single mydb --encrypt --encryption-key-file encryption.key
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# Restore (decryption is automatic)
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dbbackup restore single mydb_encrypted.sql.gz --encryption-key-file encryption.key --target mydb --confirm
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```
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## Incremental Backups
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Space-efficient incremental backups:
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```bash
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# Full backup (base)
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dbbackup backup single mydb --backup-type full
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# Incremental backup
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dbbackup backup single mydb --backup-type incremental --base-backup mydb_base.tar.gz
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```
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## Cloud Storage
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Supported providers: AWS S3, MinIO, Backblaze B2, Azure Blob Storage, Google Cloud Storage.
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```bash
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# AWS S3
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export AWS_ACCESS_KEY_ID="key"
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export AWS_SECRET_ACCESS_KEY="secret"
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dbbackup backup single mydb --cloud s3://bucket/path/
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# Azure Blob
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export AZURE_STORAGE_ACCOUNT="account"
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export AZURE_STORAGE_KEY="key"
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dbbackup backup single mydb --cloud azure://container/path/
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# Google Cloud Storage
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export GOOGLE_APPLICATION_CREDENTIALS="/path/to/credentials.json"
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dbbackup backup single mydb --cloud gcs://bucket/path/
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```
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See [CLOUD.md](CLOUD.md) for detailed configuration.
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## Point-in-Time Recovery
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PITR for PostgreSQL allows restoring to any specific point in time:
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```bash
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# Enable PITR
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dbbackup pitr enable --archive-dir /backups/wal_archive
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# Restore to timestamp
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dbbackup restore pitr \
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--base-backup /backups/base.tar.gz \
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--wal-archive /backups/wal_archive \
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--target-time "2024-11-26 12:00:00" \
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--target-dir /var/lib/postgresql/14/restored
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```
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See [PITR.md](PITR.md) for detailed documentation.
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## Backup Cleanup
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Automatic retention management:
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```bash
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# Delete backups older than 30 days, keep minimum 5
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dbbackup cleanup /backups --retention-days 30 --min-backups 5
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# Preview deletions
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dbbackup cleanup /backups --retention-days 7 --dry-run
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```
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### GFS Retention Policy
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Grandfather-Father-Son (GFS) retention provides tiered backup rotation:
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```bash
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# GFS retention: 7 daily, 4 weekly, 12 monthly, 3 yearly
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dbbackup cleanup /backups --gfs \
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--gfs-daily 7 \
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--gfs-weekly 4 \
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--gfs-monthly 12 \
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--gfs-yearly 3
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# Custom weekly day (Saturday) and monthly day (15th)
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dbbackup cleanup /backups --gfs \
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--gfs-weekly-day Saturday \
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--gfs-monthly-day 15
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# Preview GFS deletions
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dbbackup cleanup /backups --gfs --dry-run
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```
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**GFS Tiers:**
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- **Daily**: Most recent N daily backups
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- **Weekly**: Best backup from each week (configurable day)
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- **Monthly**: Best backup from each month (configurable day)
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- **Yearly**: Best backup from January each year
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## Dry-Run Mode
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Preflight checks validate backup readiness without execution:
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```bash
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# Run preflight checks only
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dbbackup backup single mydb --dry-run
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dbbackup backup cluster -n # Short flag
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```
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**Checks performed:**
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- Database connectivity (connect + ping)
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- Required tools availability (pg_dump, mysqldump, etc.)
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- Storage target accessibility and permissions
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- Backup size estimation
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- Encryption configuration validation
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- Cloud storage credentials (if configured)
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**Example output:**
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```
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╔══════════════════════════════════════════════════════════════╗
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║ [DRY RUN] Preflight Check Results ║
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╚══════════════════════════════════════════════════════════════╝
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Database: PostgreSQL PostgreSQL 15.4
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Target: postgres@localhost:5432/mydb
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Checks:
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─────────────────────────────────────────────────────────────
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✅ Database Connectivity: Connected successfully
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✅ Required Tools: pg_dump 15.4 available
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✅ Storage Target: /backups writable (45 GB free)
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✅ Size Estimation: ~2.5 GB required
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─────────────────────────────────────────────────────────────
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✅ All checks passed
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Ready to backup. Remove --dry-run to execute.
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```
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## Notifications
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Get alerted on backup events via email or webhooks.
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### SMTP Email
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```bash
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# Environment variables
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export NOTIFY_SMTP_HOST="smtp.example.com"
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export NOTIFY_SMTP_PORT="587"
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export NOTIFY_SMTP_USER="alerts@example.com"
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export NOTIFY_SMTP_PASSWORD="secret"
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export NOTIFY_SMTP_FROM="dbbackup@example.com"
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export NOTIFY_SMTP_TO="admin@example.com,dba@example.com"
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# Enable notifications
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dbbackup backup single mydb --notify
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```
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### Webhooks
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```bash
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# Generic webhook
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export NOTIFY_WEBHOOK_URL="https://api.example.com/webhooks/backup"
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export NOTIFY_WEBHOOK_SECRET="signing-secret" # Optional HMAC signing
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# Slack webhook
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export NOTIFY_WEBHOOK_URL="https://hooks.slack.com/services/T00/B00/XXX"
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dbbackup backup single mydb --notify
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```
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**Webhook payload:**
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```json
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{
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"version": "1.0",
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"event": {
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"type": "backup_completed",
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"severity": "info",
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"timestamp": "2025-01-15T10:30:00Z",
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"database": "mydb",
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"message": "Backup completed successfully",
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"backup_file": "/backups/mydb_20250115.dump.gz",
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"backup_size": 2684354560,
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"hostname": "db-server-01"
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},
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"subject": "✅ [dbbackup] Backup Completed: mydb"
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}
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```
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**Supported events:**
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- `backup_started`, `backup_completed`, `backup_failed`
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- `restore_started`, `restore_completed`, `restore_failed`
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- `cleanup_completed`
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- `verify_completed`, `verify_failed`
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- `pitr_recovery`
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- `dr_drill_passed`, `dr_drill_failed`
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- `gap_detected`, `rpo_violation`
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## Backup Catalog
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Track all backups in a SQLite catalog with gap detection and search:
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```bash
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# Sync backups from directory to catalog
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dbbackup catalog sync /backups
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# List recent backups
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dbbackup catalog list --database mydb --limit 10
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# Show catalog statistics
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dbbackup catalog stats
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# Detect backup gaps (missing scheduled backups)
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dbbackup catalog gaps --interval 24h --database mydb
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# Search backups
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dbbackup catalog search --database mydb --start 2024-01-01 --end 2024-12-31
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# Get backup info
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dbbackup catalog info 42
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```
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## DR Drill Testing
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Automated disaster recovery testing restores backups to Docker containers:
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```bash
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# Run full DR drill
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dbbackup drill run /backups/mydb_latest.dump.gz \
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--database mydb \
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--db-type postgres \
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--timeout 30m
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# Quick drill (restore + basic validation)
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dbbackup drill quick /backups/mydb_latest.dump.gz --database mydb
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# List running drill containers
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dbbackup drill list
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# Cleanup old drill containers
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dbbackup drill cleanup --age 24h
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# Generate drill report
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dbbackup drill report --format html --output drill-report.html
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```
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**Drill phases:**
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1. Container creation
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2. Backup download (if cloud)
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3. Restore execution
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4. Database validation
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5. Custom query checks
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6. Cleanup
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## Compliance Reports
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Generate compliance reports for regulatory frameworks:
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```bash
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# Generate SOC2 report
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dbbackup report generate --type soc2 --days 90 --format html --output soc2-report.html
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# HIPAA compliance report
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dbbackup report generate --type hipaa --format markdown
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# Show compliance summary
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dbbackup report summary --type gdpr --days 30
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# List available frameworks
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dbbackup report list
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# Show controls for a framework
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dbbackup report controls soc2
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```
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**Supported frameworks:**
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- SOC2 Type II (Trust Service Criteria)
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- GDPR (General Data Protection Regulation)
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- HIPAA (Health Insurance Portability and Accountability Act)
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- PCI-DSS (Payment Card Industry Data Security Standard)
|
|
- ISO 27001 (Information Security Management)
|
|
|
|
## RTO/RPO Analysis
|
|
|
|
Calculate and monitor Recovery Time/Point Objectives:
|
|
|
|
```bash
|
|
# Analyze RTO/RPO for a database
|
|
dbbackup rto analyze mydb
|
|
|
|
# Show status for all databases
|
|
dbbackup rto status
|
|
|
|
# Check against targets
|
|
dbbackup rto check --rto 4h --rpo 1h
|
|
|
|
# Set target objectives
|
|
dbbackup rto analyze mydb --target-rto 4h --target-rpo 1h
|
|
```
|
|
|
|
**Analysis includes:**
|
|
- Current RPO (time since last backup)
|
|
- Estimated RTO (detection + download + restore + validation)
|
|
- RTO breakdown by phase
|
|
- Compliance status
|
|
- Recommendations for improvement
|
|
|
|
## Configuration
|
|
|
|
### PostgreSQL Authentication
|
|
|
|
```bash
|
|
# Peer authentication
|
|
sudo -u postgres dbbackup backup cluster
|
|
|
|
# Password file
|
|
echo "localhost:5432:*:postgres:password" > ~/.pgpass
|
|
chmod 0600 ~/.pgpass
|
|
|
|
# Environment variable
|
|
export PGPASSWORD=password
|
|
```
|
|
|
|
### MySQL/MariaDB Authentication
|
|
|
|
```bash
|
|
# Command line
|
|
dbbackup backup single mydb --db-type mysql --user root --password secret
|
|
|
|
# Configuration file
|
|
cat > ~/.my.cnf << EOF
|
|
[client]
|
|
user=root
|
|
password=secret
|
|
EOF
|
|
chmod 0600 ~/.my.cnf
|
|
```
|
|
|
|
### Configuration Persistence
|
|
|
|
Settings are saved to `.dbbackup.conf` in the current directory:
|
|
|
|
```bash
|
|
--no-config # Skip loading saved configuration
|
|
--no-save-config # Prevent saving configuration
|
|
```
|
|
|
|
## Performance
|
|
|
|
### Memory Usage
|
|
|
|
Streaming architecture maintains constant memory usage regardless of database size:
|
|
|
|
| Database Size | Memory Usage |
|
|
|---------------|--------------|
|
|
| 1-100+ GB | < 1 GB |
|
|
|
|
### Optimization
|
|
|
|
```bash
|
|
# High-performance backup
|
|
dbbackup backup cluster \
|
|
--max-cores 32 \
|
|
--jobs 32 \
|
|
--cpu-workload cpu-intensive \
|
|
--compression 3
|
|
```
|
|
|
|
Workload types:
|
|
- `balanced` - Default, suitable for most workloads
|
|
- `cpu-intensive` - Higher parallelism for fast storage
|
|
- `io-intensive` - Lower parallelism to avoid I/O contention
|
|
|
|
## Requirements
|
|
|
|
**System:**
|
|
- Linux, macOS, FreeBSD, OpenBSD, NetBSD
|
|
- 1 GB RAM minimum
|
|
- Disk space: 30-50% of database size
|
|
|
|
**PostgreSQL:**
|
|
- psql, pg_dump, pg_dumpall, pg_restore
|
|
- PostgreSQL 10+
|
|
|
|
**MySQL/MariaDB:**
|
|
- mysql, mysqldump
|
|
- MySQL 5.7+ or MariaDB 10.3+
|
|
|
|
## Documentation
|
|
|
|
- [DOCKER.md](DOCKER.md) - Docker deployment
|
|
- [CLOUD.md](CLOUD.md) - Cloud storage configuration
|
|
- [PITR.md](PITR.md) - Point-in-Time Recovery
|
|
- [AZURE.md](AZURE.md) - Azure Blob Storage
|
|
- [GCS.md](GCS.md) - Google Cloud Storage
|
|
- [SECURITY.md](SECURITY.md) - Security considerations
|
|
- [CONTRIBUTING.md](CONTRIBUTING.md) - Contribution guidelines
|
|
- [CHANGELOG.md](CHANGELOG.md) - Version history
|
|
|
|
## License
|
|
|
|
Apache License 2.0 - see [LICENSE](LICENSE).
|
|
|
|
Copyright 2025 dbbackup Project
|