Case Study: Kong Inc. achieves automated, role-based Consul ACL management with HashiCorp

The Strategies And Pitfalls That Kong Cloud Learned As They Adopted A Positive Security Model With Consul ACL Policies And Vault Token Management

Kong Inc. uses HashiCorp tooling in Kong Cloud, its API gateway SaaS platform, to manage service networking and security at scale. As the team adopted Consul ACLs, they needed a secure, automated way to control access across dynamic, autoscaling infrastructure without manually handling credentials or disrupting service operations.

Using HashiCorp Consul, Vault, and Terraform, Kong built a role-based, positive security model for ACL policies and token lifecycle management. HashiCorp’s tools let the team automate Vault login, generate Consul ACL tokens through Vault, and define policies as code, while monitoring real traffic to shape rules. The result was a more controlled, identity-based security architecture, though the team also reduced risk by learning to avoid pitfalls like TTL mismatches, bootstrapping issues, and overly permissive default tokens.

Kong Inc.

Robert Paprocki

Cloud Engineer