--- title: "Luc Cao (@caolucl) | Hashnode" description: "Technie. Read the latest articles by Luc Cao on Hashnode." url: "https://hashnode.com/@caolucl" --- @caolucl # Luc Cao @caolucl · Joined June 2022 Technie ### [Azure Service Bus for Event-Driven Systems](https://caoluc.hashnode.dev/azure-service-bus-for-event-driven-systems?utm_source=hashnode&utm_medium=feed) From https://dev.to/aldacosta/azure-service-bus-for-event-driven-systems-a-practical-deep-dive-5an3 10 min read · [caoluc.hashnode.dev](https://caoluc.hashnode.dev/azure-service-bus-for-event-driven-systems?utm_source=hashnode&utm_medium=feed) [Sep 10](https://hashnode.com/posts/azure-service-bus-for-event-driven-systems/6aa21f1b107961324b6bb327) ### [AWS IAM - Roles between two AWS Accounts](https://caoluc.hashnode.dev/aws-iam-roles-between-two-aws-accounts?utm_source=hashnode&utm_medium=feed) Problem: Your company has two AWS accounts: DevAccount and ProdAccount. Developers in DevAccount need to access an S3 bucket in ProdAccount without using long-term credentials. How do you configure access securely? Solution: Create an IAM Role in Pr... 3 min read · [caoluc.hashnode.dev](https://caoluc.hashnode.dev/aws-iam-roles-between-two-aws-accounts?utm_source=hashnode&utm_medium=feed) [Dec 18, 2025](https://hashnode.com/posts/aws-iam-roles-between-two-aws-accounts/6943d1764737b435d2118a83) ### [Azure - How to Solve 504 Gateway Time-Out Errors with Azure Application Gateway](https://caoluc.hashnode.dev/azure-how-to-solve-504-gateway-time-out-errors-with-azure-application-gateway?utm_source=hashnode&utm_medium=feed) From https://www.syncfusion.com/blogs/post/solve-504-gateway-time-out-error-azure-gateway When a browser attempts to load a website, a request is typically made to a web server. An HTTP 504 error code is sent to the browser when the request takes to... 4 min read · [caoluc.hashnode.dev](https://caoluc.hashnode.dev/azure-how-to-solve-504-gateway-time-out-errors-with-azure-application-gateway?utm_source=hashnode&utm_medium=feed) [Dec 17, 2025](https://hashnode.com/posts/azure-how-to-solve-504-gateway-time-out-errors-with-azure-application-gateway/6942cc036428ff0b0880650e) ### [Aws Eks](https://caoluc.hashnode.dev/aws-eks?utm_source=hashnode&utm_medium=feed) Architecture 3 min read · [caoluc.hashnode.dev](https://caoluc.hashnode.dev/aws-eks?utm_source=hashnode&utm_medium=feed) [Dec 6, 2025](https://hashnode.com/posts/aws-eks/6933b414484c16fb10639a28) ### [Dockerfile Security Best Practices: How to Build Secure Containers](https://caoluc.hashnode.dev/dockerfile-security-best-practices-how-to-build-secure-containers?utm_source=hashnode&utm_medium=feed) Anmol Singh Yadav 1. Introduction Docker is a revolutionary technology that enables developers to build, deploy & maintain applications in a lightweight, portable, and efficient way (known as containers). One can think of containers similar to a ‘Vir... 9 min read · [caoluc.hashnode.dev](https://caoluc.hashnode.dev/dockerfile-security-best-practices-how-to-build-secure-containers?utm_source=hashnode&utm_medium=feed) [Mar 15, 2025](https://hashnode.com/posts/dockerfile-security-best-practices-how-to-build-secure-containers/67d58e3ca6cfcc9f53768347)