OCI Free Tier Guide Part 2: Building the Shared Infrastructure Layer with Terraform

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A technical guide published on DEV Community walks through setting up the shared architecture layer for an Oracle Cloud Infrastructure (OCI) free-tier environment using Terraform. The tutorial, Part 2 of an ongoing series, builds on prior setup steps including local key configuration and remote state bucket creation. This installment focuses on provisioning core components such as a Virtual Cloud Network, internet gateway, public subnet, security rules, and an Object Storage bucket within the ~/oci-infra/shared/ directory. The guide details key Terraform configuration files — including provider, variables, backend, and main definitions — with the remote state stored in OCI Object Storage via an S3-compatible API. Authentication is handled through API keys, and the Terraform backend is configured with OCI-specific overrides to bypass standard AWS checks for compatibility.

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