Agent skill · software engineering · jeremylongshore
oraclecloud-reference-architecture
Standard 3-tier OCI reference architecture with VCN, subnets, gateways,
Why this skill is useful
Adds Terraform scripts for deploying a complete 3-tier OCI architecture with specific OCI components and configurations not found in public documentation.
What it needs
Requires oci, python3, terraform installed locally. Requires oraclecloud account access. About 6k tokens when loaded. Last updated 2026-08-07. 2,604 stars on the source repository.
What this skill does
Oracle Cloud Reference Architecture Overview OCI architecture has more moving parts than AWS or Azure. Where AWS has VPC + subnets + internet gateway, OCI has VCN + regional subnets + Internet Gateway + NAT Gateway + Service Gateway + DRG (Dynamic Routing Gateway) + LPG (Local Peering Gateway) — and getting the routing tables wrong means silent packet drops with no error. This provides the standard 3-tier architecture (web/app/db) with every OCI-specific component wired correctly, plus Terraform code to deploy it. Purpose: Produce a production-ready 3-tier OCI architecture with correctly configured networking, gateways, security rules, and compute/database tiers — deployable via Terraform. Prerequisites OCI account with an active tenancy — https://cloud.oracle.com OCI CLI installed and configured — ~/.oci/config validated (see oraclecloud-install-auth) Python 3.8+ with the OCI SDK — pip install oci Terraform 1.5+ with the OCI provider — https://registry.terraform.io/providers/oracle/oci/latest/docs Compartment OCID for the target environment Familiarity with CIDR notation for subnet planning Instructions Step 1: Architecture Overview Step 2: Gateway Types Explained Gateway Purpose Attached To Use Case --------- --------- ------------- ---------- Internet Gateway Bidirectional internet access Public subnet route table Load balancers, bastion hosts NAT Gateway Outbound-only internet access Private subnet route table App servers needing patches, external APIs Service Gateway Access OCI services without internet Private subnet route table Object Storage, Autonomous DB, OCI APIs DRG (Dynamic Routing Gateway) On-premises / cross-region connectivity VCN attachment VPN, FastConnect, inter-region peering LPG (Local Peering Gateway) VCN-to-VCN within same region VCN attachment Shared services VCN, hub-spoke topology Step 3: Create the VCN and Subnets (Python SDK) Step 4: Create Gateways and Route Tables Step 5: Terraform Deployment Step 6: Component Mapping (AWS/Azure → OCI) …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills jeremylongshore/oraclecloud-reference-architecture--3bf17a