Posts in 2021
Evolving Kubernetes networking with the Gateway API
By Mark Church (Google), Harry Bagdi (Kong), Daneyon Hanson (Red Hat), Nick Young (VMware), Manuel Zapf (Traefik Labs) | Thursday, April 22, 2021 in Blog
The Ingress resource is one of the many Kubernetes success stories. It created a diverse ecosystem of Ingress controllers which were used across hundreds of thousands of clusters in a standardized and consistent way. This standardization helped users …
Graceful Node Shutdown Goes Beta
By David Porter (Google), Mrunal Patel (Red Hat), Tim Bannister (The Scale Factory) | Wednesday, April 21, 2021 in Blog
Graceful node shutdown, beta in 1.21, enables kubelet to gracefully evict pods during a node shutdown. Kubernetes is a distributed system and as such we need to be prepared for inevitable failures — nodes will fail, containers might crash or be …
Defining Network Policy Conformance for Container Network Interface (CNI) providers
By Matt Fenwick (Synopsys), Jay Vyas (VMWare), Ricardo Katz, Amim Knabben (Loadsmart), Douglas Schilling Landgraf (Red Hat), Christopher Tomkins (Tigera) | Tuesday, April 20, 2021 in Blog
Special thanks to Tim Hockin and Bowie Du (Google), Dan Winship and Antonio Ojea (Red Hat), Casey Davenport and Shaun Crampton (Tigera), and Abhishek Raut and Antonin Bas (VMware) for being supportive of this work, and working with us to resolve …
Annotating Kubernetes Services for Humans
By Richard Li (Ambassador Labs) | Tuesday, April 20, 2021 in Blog
Have you ever been asked to troubleshoot a failing Kubernetes service and struggled to find basic information about the service such as the source repository and owner? One of the problems as Kubernetes applications grow is the proliferation of …
Introducing Indexed Jobs
By Aldo Culquicondor (Google) | Monday, April 19, 2021 in Blog
Once you have containerized a non-parallel Job, it is quite easy to get it up and running on Kubernetes without modifications to the binary. In most cases, when running parallel distributed Jobs, you had to set a separate system to partition the work …
Volume Health Monitoring Alpha Update
By Xing Yang (VMware) | Friday, April 16, 2021 in Blog
The CSI Volume Health Monitoring feature, originally introduced in 1.19 has undergone a large update for the 1.21 release. Why add Volume Health Monitoring to Kubernetes? Without Volume Health Monitoring, Kubernetes has no knowledge of the state of …
Three Tenancy Models For Kubernetes
By Ryan Bezdicek (Medtronic), Jim Bugwadia (Nirmata), Tasha Drew (VMware), Fei Guo (Alibaba), Adrian Ludwin (Google) | Thursday, April 15, 2021 in Blog
Kubernetes clusters are typically used by several teams in an organization. In other cases, Kubernetes may be used to deliver applications to end users requiring segmentation and isolation of resources across users from different organizations. …
Local Storage: Storage Capacity Tracking, Distributed Provisioning and Generic Ephemeral Volumes hit Beta
By Patrick Ohly (Intel) | Wednesday, April 14, 2021 in Blog
The "generic ephemeral volumes" and "storage capacity tracking" features in Kubernetes are getting promoted to beta in Kubernetes 1.21. Together with the distributed provisioning support in the CSI external-provisioner, …
kube-state-metrics goes v2.0
By Lili Cosic (Red Hat), Frederic Branczyk (Polar Signals), Manuel Rüger (Sony Interactive Entertainment), Tariq Ibrahim (Salesforce) | Tuesday, April 13, 2021 in Blog
What? kube-state-metrics, a project under the Kubernetes organization, generates Prometheus format metrics based on the current state of the Kubernetes native resources. It does this by listening to the Kubernetes API and gathering information about …
Introducing Suspended Jobs
By Adhityaa Chandrasekar (Google) | Monday, April 12, 2021 in Blog
Jobs are a crucial part of Kubernetes' API. While other kinds of workloads such as Deployments, ReplicaSets, StatefulSets, and DaemonSets solve use-cases that require Pods to run forever, Jobs are useful when Pods need to run to completion. Commonly …