FSx ONTAP – Enterprise storage on AWS

Even though object storage has gained a lot of popularity, file storage is still prevalent. AWS has Elastic File System but the performance is insufficient for enterprise workload. The FSx product line has enterprise storage options and on Sept 2, 2021, AWS launched FSx ONTAP. This post is my impression about FSx ONTAP. As previously … Read moreFSx ONTAP – Enterprise storage on AWS

Secure web application deployment

In Nov 2020, I created OrthWeb project, a deployment of Orthanc’s server. Orthanc is a DICOM viewer and repo shipped in Docker container. In the deployment project, I use Terraform to provision infrastructure, including a managed PostgreSQL instance, an EC2 instance for docker runtime, and the init script to bring up the web service. I … Read moreSecure web application deployment

Public Key Infrastructure (PKI)

A public-key infrastructure (PKI) is a set of roles, policies, hardware, software and procedures needed to create, manage, distribute, use, store and revoke digital certificates and manage public-key encryption. The algorithms are based on Publick-key cryptography. The format of the digital certificate is defined in X.509 standard.  Certificate Authority – CA digitally signs and publishes … Read morePublic Key Infrastructure (PKI)

AWS CDK example in Typescript – provision an AWX server

This post provides an example of using AWS CDK in Typescript. Ansible Tower and AWX We have used open-source Ansible extensively in the past. While the automation is convenient, the lack of UI makes it not as suitable as a team collaboration tool. One way to allow team collaboration with open-source Ansible, is to use … Read moreAWS CDK example in Typescript – provision an AWX server

Virtualization 3 of 4 – Containers

In broad terms, virtualization of computing resource is about isolation of resources at different levels. We have covered hypervisor-based virtualization in the other post. In this article, we continue to dive into OS level virtualization. Remember again that the gist of virtualization is isolation of resource. To support OS level virtualization, the OS must have … Read moreVirtualization 3 of 4 – Containers