Migrating the Kubernetes Network Overlay With Zero Downtime

At Blend, we make extensive use of Kubernetes on AWS to power our infrastructure. Kubernetes has many moving parts, and most of these components are swappable, allowing us to customize clusters to our needs. An important component of any cluster is the Container Network Interface (CNI), which handles the networking for all pods running on the cluster. Choosing the right CNI for each use case is critically important and making changes, once serving production traffic, can be painful.

Centralizing Logs in an Isolated AWS Account

As a member of the information security team here at Blend, I recently teamed up with the business analytics team to re-architect our log pipeline to increase the security and availability of both the log delivery system and access to the logs themselves. Since the logs provide crucial insight into the production environment for many different teams at Blend, we found ourselves with a list of different requirements to accommodate each team.