Latest Cloud‑Native Updates: OAM Open‑Source, KubeVirt in CNCF, and Scheduler Enhancements
This roundup covers the open‑source launch of OAM, KubeVirt joining the CNCF Sandbox, the release of KubeAdvisor 1.0, several kube‑scheduler improvements, kubeadm usability upgrades, notable KEPs, VMware‑Tanzu project migrations, a tool for converting deprecated Kubernetes APIs, and a curated list of weekly technical readings.
Open Application Model (OAM) Open‑Source Release
On 17 Oct 2019, Alibaba Cloud and Microsoft announced the Open Application Model (OAM) project as an open‑source initiative. OAM aims to standardise communication between application developers, operators and infrastructure, making cloud‑native application management and delivery simpler, more efficient and controllable.
KubeVirt Joins CNCF Sandbox
KubeVirt, a Red Hat project that enables running virtual machines as pods inside a Kubernetes cluster, has been accepted into the CNCF Sandbox, providing a unified way to manage VMs alongside containers.
KubeAdvisor 1.0 Released
KubeAdvisor 1.0 is a Kubernetes observability tool that scans cluster resources, status and configuration, delivering actionable insights to improve reliability and stability of the underlying infrastructure and workloads.
Recent Scheduler Enhancements
Dynamic adjustment of kube‑scheduler log level via a new PR.
Modularisation of prioritisation logic into Score plugins such as BalancedResourceAllocation, MostRequestedPriority, and LeastResourcePriority.
New metric tracking the number of goroutines handling Binding and Prioritising.
kubeadm Usability Improvements
Structured output (yaml/json) for easier downstream processing.
Added --with-ca flag to display CA expiration information, helping prevent component outages caused by expired certificates.
Notable KEPs
Beta graduation criteria for the Kube API Server network proxy.
Insecure kubelet log flag for debugging when serving certs are expired but client certs are still valid.
Standardised compliance test content.
Extended NodeRestriction controller for finer‑grained security.
HPA implementable state.
VMware‑Tanzu Open‑Source Migration
VMware has moved several cloud‑native projects to the new VMware‑Tanzu organization, including Velero (application migration), Octant (cluster dashboard), and Sonobuoy (Kubernetes testing).
k8s‑transmogrifier Tool
With Kubernetes 1.16 deprecating many APIs, the k8s‑transmogrifier automates conversion of deprecated resources (yaml, json) to the newer versions.
Weekly Reading Recommendations
“How Alibaba’s R&D Model Evolved” – insights from Jiang Jiangwei on new architecture and development practices.
“How Zalando Manages 140+ Kubernetes Clusters” – practices such as dual‑cluster per domain, Git‑based config, and Cluster Lifecycle Manager.
“Liveness Probes are Dangerous” – best practices and pitfalls of liveness/readiness probes.
“A Practical Guide to Setting Kubernetes Requests and Limits” – explanation and SLA‑focused recommendations.
“Protecting Kubernetes API Against CVE‑2019‑11253” – security hardening steps including RBAC, role checks, and avoiding master host exposure.
“Weather Service with Knative Serverless – Part 2” – using Table Store event source and DingTalk notifications.
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