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Automate database backup processes with scheduling, compression, and encryption.
Supports PostgreSQL (pg_dump), MySQL (mysqldump), MongoDB (mongodump), and SQLite.
Generates production-ready backup scripts with retention policies and restore procedures.
Trigger: "automate database backups", "schedule backups", "create backup script", "disaster recovery".
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Database Backup Automation
Generate production-ready backup scripts for PostgreSQL, MySQL, MongoDB, and SQLite with compression, encryption, scheduling, and retention policies.
Quick Start
PostgreSQL Backup
#!/bin/bash
set -euo pipefail
BACKUP_DIR="/var/backups/postgresql"
DB_NAME="mydb"
DATE=$(date +%Y%m%d_%H%M%S)
BACKUP_FILE="${BACKUP_DIR}/${DB_NAME}_${DATE}.sql.gz"
pg_dump -h localhost -U postgres -d "$DB_NAME" \
--format=custom \
--compress=9 \
--file="$BACKUP_FILE"
# Encrypt with GPG (optional)
gpg --symmetric --cipher-algo AES256 --batch --passphrase-file /etc/backup.key "$BACKUP_FILE"
rm "$BACKUP_FILE"
MySQL Backup
#!/bin/bash
BACKUP_DIR="/var/backups/mysql"
DB_NAME="mydb"
DATE=$(date +%Y%m%d_%H%M%S)
mysqldump -h localhost -u root -p"${MYSQL_PASSWORD}" \
--single-transaction \
--routines \
--triggers \
"$DB_NAME" | gzip > "${BACKUP_DIR}/${DB_NAME}_${DATE}.sql.gz"
MongoDB Backup
#!/bin/bash
mongodump --uri="mongodb://localhost:27017" \ # 27017: MongoDB port
--db=mydb \
--out=/var/backups/mongodb/$(date +%Y%m%d_%H%M%S) \
--gzip
Instructions
Step 1: Gather Requirements
- Database type (PostgreSQL, MySQL, MongoDB, SQLite)
- Database connection details (host, port, database name)
- Backup schedule (cron expression or frequency)
- Retention policy (days to keep)
- Encryption requirement (yes/no)
- Backup destination (local path, S3, GCS)
Step 2: Generate Backup Script
Use scripts/backup_script_generator.py to create a customized backup script:
python3 ${CLAUDE_SKILL_DIR}/scripts/backup_script_generator.py \
--db-type postgresql \
--database mydb \
--output /opt/backup-scripts/mydb-backup.sh \
--compression gzip \
--encryption gpg
Step 3: Schedule with Cron
Use scripts/backup_scheduler.py to create cron entries:
python3 ${CLAUDE_SKILL_DIR}/scripts/backup_scheduler.py \
--script /opt/backup-scripts/mydb-backup.sh \
--schedule "0 2 * * *" \
--user postgres
Step 4: Validate Backup
After backup completes, validate integrity:
python3 ${CLAUDE_SKILL_DIR}/scripts/backup_validator.py \
--backup-file /var/backups/postgresql/mydb_20250115.sql.gz \
--db-type postgresql
Step 5: Generate Restore Procedure
Create matching restore script:
python3 ${CLAUDE_SKILL_DIR}/scripts/restore_script_generator.py \
--db-type postgresql \
--database mydb \
--output /opt/backup-scripts/mydb-restore.sh
Cron Schedule Reference
| Schedule | Cron Expression | Description |
|---|
| Daily 2 AM | 0 2 * * * | Low-traffic window |
| Every 6 hours | 0 */6 * * * | Frequent backups |
| Weekly Sunday | 0 2 * * 0 | Weekly full backup |
| Monthly 1st | 0 2 1 * * | Monthly archive |
Retention Policy Example
# Keep daily backups for 7 days
# Keep weekly backups for 4 weeks
# Keep monthly backups for 12 months
find /var/backups -name "*.gz" -mtime +7 -delete # Daily cleanup
find /var/backups/weekly -mtime +28 -delete # Weekly cleanup
find /var/backups/monthly -mtime +365 -delete # 365: Monthly cleanup
Output
- Backup Scripts: Database-specific shell scripts with compression and encryption
- Cron Entries: Ready-to-install crontab configurations
- Restore Scripts: Matching restore procedures for each backup type
- Validation Reports: Integrity check results for backup files
Error Handling
| Error | Cause | Solution |
|---|
| Connection refused | DB not running | Check service status: systemctl status postgresql |
| Permission denied | Wrong credentials | Verify user has backup privileges |
| Disk full | No space | Check space: df -h, clean old backups |
| Lock timeout | Active transactions | Use --single-transaction for MySQL |
Resources
${CLAUDE_SKILL_DIR}/references/postgresql_backup_restore.md - PostgreSQL backup guide${CLAUDE_SKILL_DIR}/references/mysql_backup_restore.md - MySQL backup guide${CLAUDE_SKILL_DIR}/references/mongodb_backup_restore.md - MongoDB backup guide${CLAUDE_SKILL_DIR}/references/sqlite_backup_restore.md - SQLite backup guide${CLAUDE_SKILL_DIR}/references/backup_best_practices.md - Security and storage best practices${CLAUDE_SKILL_DIR}/references/cron_syntax.md - Cron scheduling reference
Overview
Automate database backup processes with scheduling, compression, and encryption.
Prerequisites
- Access to the PostgreSQL environment or API
- Required CLI tools installed and authenticated
- Familiarity with PostgreSQL concepts and terminology
Examples
Basic usage: Apply automating database backups to a standard project setup with default configuration options.
Advanced scenario: Customize automating database backups for production environments with multiple constraints and team-specific requirements.
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