The Network Infrastructure Automation (NIA) solution using Consul-Terraform-Sync (CTS) simplifies the process of managing application delivery controllers (ADCs) in hybrid cloud environments. By leveraging open-source DevOps tools, NIA automates the configuration update process for ADCs, enabling self-service models and streamlining operational tasks. The solution consists of four components: HashiCorp Terraform for infrastructure as code, HashiCorp Consul for service networking and service mesh, Consul-Terraform-Sync (CTS) for automation between those two products, and integrations provided by network devices such as A10 Thunder ADC. CTS uses Consul's service catalog as a source of truth for all applications running in a given environment, automatically creating new "slb server" configurations on the Thunder ADC whenever services are registered or removed from the Consul catalog. The solution can be implemented on any type of platform and supports CI/CD operations, including blue-green deployment, by leveraging Terraform and service tags on Consul.