Networking Skill

Configure domains, routing, CORS, VPC, static IPs, and inter-service communication for DigitalOcean App Platform.

What This Skill Does

• Configures custom domains with DNS and TLS
• Sets up path-based and subdomain routing via ingress rules
• Configures CORS for cross-origin API access
• Enables VPC networking for secure database connectivity
• Manages static egress IPs for firewall allowlisting

Quick Start

# Path-based routing
ingress:
  rules:
    - component: { name: api }
      match: { path: { prefix: /api } }
    - component: { name: frontend }
      match: { path: { prefix: / } }

Key Decisions This Skill Makes

Decision	Default	Rationale
VPC connectivity	VPC CIDR whitelisting	More reliable than app-based rules
CORS credentials	Exact origins only	Required when allow_credentials: true
TLS certificates	Auto-provisioned	Let's Encrypt + Google Trust
Ingress order	Specific rules first	Prevents catch-all conflicts

Files

• SKILL.md — Complete skill documentation with quick starts
• reference/domains-dns.md — Domain types, DNS setup, wildcards, TLS
• reference/ingress-routing.md — Path routing, rewrites, redirects
• reference/cors-configuration.md — CORS fields, patterns, credentials
• reference/vpc-trusted-sources.md — VPC setup, trusted sources matrix
• reference/static-ips-egress.md — Ingress IPs, dedicated egress
• reference/complete-patterns.md — 5 complete architecture patterns

Integration

Direction	Skill	Integration
→	designer	Add domains/ingress to app spec
→	troubleshooting	Debug DNS, CORS, VPC issues
→	postgres	VPC connectivity for databases
→	deployment	Deploy networking changes

Related Skills

• designer — Include networking in app architecture
• postgres — Database VPC configuration
• troubleshooting — Debug connectivity issues