Troubleshooting Terraform Provider Installation in Private Networks

Last updated: September 9, 2025

When running Terraform operations in private networks or environments with restricted internet access, provider installations may fail due to network connectivity issues. This article explains how to resolve these installation errors.

Required Domains for Provider Installation

To successfully install Terraform providers in private networks, ensure your network allows access to these essential domains:

  • registry.terraform.io - The main Terraform provider registry

  • release-assets.githubusercontent.com - GitHub's release asset hosting, used by many providers

Verifying Network Access

You can verify connectivity to these domains by running the following curl commands from your worker environment:

curl -v https://registry.terraform.io
curl -v https://release-assets.githubusercontent.com

Resolution Steps

  1. Check your network firewall rules or security group settings

  2. Add the required domains to your allowlist/whitelist

  3. Verify connectivity using the curl commands above

  4. Retry the provider installation

If you're using a proxy server, ensure it's properly configured to allow access to these domains.