K8s in Wonderland: Why? Many of Unknown Code in My Workload? - Hoon Jo, Megazone
Hoon Jo, Megazone
KubeCon + CloudNativeCon Europe 2025 · Session
In his KubeCon EU talk, "K8s in Wonderland: Why? Many of Unknown Code in My Workload?", Hoon Jo from Megazone invites attendees to "down to the Kubernetes hole," echoing Alice's journey into Wonderland, to explore the often-overlooked default configurations and underlying mechanisms within Kubernetes. The core premise of the talk revolves around demystifying the "unknown code" – the myriad of options, policies, and parameters that are automatically applied or commonly adopted in Kubernetes deployments, yet whose rationale and implications are frequently misunderstood by developers and operators. Jo argues that while these settings might appear as black boxes, they are in fact intelligently designed and represent community-driven best practices.
AI review
Hoon Jo's 'K8s in Wonderland' delivers a substantive deep-dive into the often-overlooked default configurations of Kubernetes. The talk brilliantly demystifies the 'why' behind critical settings like `imagePullPolicy`, `maxSurge`, and `sessionAffinity`, transforming abstract defaults into actionable knowledge. Through clear explanations and practical, recorded demonstrations, Jo empowers operators and security professionals to move beyond passive acceptance, fostering a more informed and secure approach to Kubernetes deployments. This isn't groundbreaking zero-day research, but it's a…