03Perspectives

Field notes from senior practitioners.

Short, specific pieces on platform engineering, automation and resilience — written by the people doing the work, without naming whose work it was.

  • September 14, 2026Disaster Recovery

    DR You Have Not Tested Is a Hypothesis

    A disaster recovery plan that has never failed over is a document, not a capability. Here is what a real cross-site test on a container platform looks like, and what 'recovered' must mean in a contract.

  • September 7, 2026OpenShift

    Declarative Host Networking on Bare-Metal OpenShift

    On bare-metal clusters, host networking is either declared and reconciled or it is a spreadsheet of exceptions. We explain why the former is the only version that survives contact with a real fleet.

  • August 31, 2026Ansible

    Directory Migration as a Workflow

    Major-version directory server upgrades keep failing for the same avoidable reasons. Treated as a repeatable four-stage workflow, they stop being an event and become routine engineering.

  • August 24, 2026OpenShift

    The First Fortnight

    A handful of decisions made in an OpenShift platform's first two weeks set its cost for the next five years. Here is how to make them, and how to make them reviewable.