Practical notes on running, securing and tuning workloads on Kubernetes - covering RBAC, secrets, resource management and the gotchas we’ve hit along the way.

Kubernetes 5 min read

Istio Service Mesh in Practice: What It Gives You and Where It Bites

What a service mesh actually solves, the Istio features worth adopting first, and the production gotchas - from sidecar overhead to an egress gateway TLS trap.

Read article →
Kubernetes 2 min read

Kubernetes Resource Limits and JVM Heap Size

How the JVM picks its maximum heap size inside a Kubernetes container, and a sensible way to align -Xmx with your resource requests and limits.

Read article →
Kubernetes 3 min read

Kubernetes Service Accounts and Secrets - Mounting Secrets as Volumes

A hands-on look at how Service Account RBAC interacts with secrets mounted as volumes in Kubernetes - and why an RBAC restriction doesn't stop a volume mount.

Read article →