Optimizing AWS Private Link on Staging

Background

Web access backend API using AWS Private link. Currently we use private link for every backend API. To save cost, we will use single private link for services that still run on tvlk-dev. This will not impact services that already migrated to multi account.

Terraform pull request: https://github.com/traveloka/tvlk-web-stg-terraform-aws/pull/46/files

Impact

Optimize cost on tvlk-web-stg AWS account

Risk

While executing this, some backend API can not be accessed (only staging API).