managed-db-services

Configure DigitalOcean Managed MySQL, MongoDB, Valkey (Redis), Kafka, and OpenSearch for App Platform applications.

What This Skill Does

• Configures bindable variables for managed database connections
• Sets up trusted sources for secure database access
• Provides engine-specific connection patterns (SSL, auth, ports)
• Documents critical constraints (Kafka limitations, VPC behavior)

Quick Start

# Add managed database to app spec
databases:
  - name: db
    engine: MYSQL        # or MONGODB, REDIS, KAFKA, OPENSEARCH
    production: true     # REQUIRED for bindable variables
    cluster_name: my-cluster
    db_user: myappuser

services:
  - name: api
    envs:
      - key: DATABASE_URL
        scope: RUN_TIME
        value: ${db.DATABASE_URL}

Key Decisions This Skill Makes

| Decision | Default | Rationale | |----------|---------|-----------| | Dev databases | PostgreSQL only | Other engines require production: true | | Trusted sources | VPC CIDR for VPC apps | app: rules whitelist public IP only | | Kafka access | IP-based rules | app: rules not supported for Kafka | | SSL mode | Required | All engines require TLS |

Files

• SKILL.md — Complete skill documentation with decision tree
• reference/mysql.md — Connection pools, user privileges
• reference/mongodb.md — User roles, authSource configuration
• reference/valkey.md — Eviction policies, SSL protocol
• reference/kafka.md — SASL auth, SSL certs, Schema Registry
• reference/opensearch.md — ACLs, logging limitations

Integration

| Direction | Skill | Integration | |-----------|-------|-------------| | → | designer | Generates databases: block | | → | deployment | Bindable vars handle credentials | | → | networking | VPC + trusted sources | | → | troubleshooting | Debug container for connectivity |

Related Skills

• postgres — For complex PostgreSQL (schema isolation, multi-tenant)
• designer — Include databases in app architecture
• networking — Configure VPC and trusted sources