• Update package name syntax in userdata script to prevent breakage when installing latest versions of Vault enterprise.

• Update examples directory with quickstart file that reduces number of steps to
  provision pre-reqs
• Remove data sources for AWS subnets and allow user to explicitly specify
  private subnet IDs in main module
• Update main module outputs
• Update default Vault version to latest version (1.10.3)
• Update Terraform version pin

Improvements

• Update permissions and environment variables to allow safer interaction with Vault by operators using a the localhost CLI.
• Enable enforcement of IMDSv2 metadata API usage for better anti-SSRF protection.

Improvements

• Update config and file permissions to match Deployment Guide
• Update disk specs to new Reference Architecture recommendations
• Update default version to 1.8.1

• Initial release