AWS RDS Database
Table of Contents
Overview
Amazon RDS simplifies relational database deployment and operations. Support multiple database engines with automated backups, replication, encryption, and high availability through Multi-AZ deployments.
When to Use
- PostgreSQL and MySQL applications
- Transactional databases and OLTP
- Oracle and Microsoft SQL Server workloads
- Read-heavy applications with replicas
- Development and staging environments
- Data requiring ACID compliance
- Applications needing automatic backups
- Disaster recovery scenarios
Quick Start
Minimal working example:
bash# Create DB subnet group aws rds create-db-subnet-group \ --db-subnet-group-name app-db-subnet \ --db-subnet-group-description "App database subnet" \ --subnet-ids subnet-12345 subnet-67890 # Create security group for RDS aws ec2 create-security-group \ --group-name rds-sg \ --description "RDS security group" \ --vpc-id vpc-12345 # Allow inbound PostgreSQL aws ec2 authorize-security-group-ingress \ --group-id sg-rds123 \ --protocol tcp \ --port 5432 \ --source-security-group-id sg-app123 # Create RDS instance aws rds create-db-instance \ --db-instance-identifier myapp-db \ --db-instance-class db.t3.micro \ --engine postgres \ --engine-version 15.2 \ // ... (see reference guides for full implementation)
Reference Guides
Detailed implementations in the references/ directory:
| Guide | Contents |
|---|---|
| RDS Instance Creation with AWS CLI | RDS Instance Creation with AWS CLI |
| Terraform RDS Configuration | Terraform RDS Configuration |
| Database Connection and Configuration | Database Connection and Configuration |
Best Practices
✅ DO
- Use Multi-AZ for production
- Enable automated backups
- Use encryption at rest and in transit
- Implement IAM database authentication
- Create read replicas for scaling
- Monitor performance metrics
- Set up CloudWatch alarms
- Store credentials in Secrets Manager
- Use parameter groups for configuration
❌ DON'T
- Store passwords in code
- Disable encryption
- Use public accessibility in production
- Ignore backup retention
- Skip automated backups
- Create databases without Multi-AZ

