Stateful Applications StatefulSet Basics Example: Deploying WordPress and MySQL with Persistent Volumes Example: Depl...

kubeadm does not support automated ways of reconfiguring components that were deployed on managed nodes. One way of automating this would be by using a custom operator. To modify the components configuration you must manually edit associated cluster objects and files on disk. This guide shows the correct sequence of steps that need to be performed to achieve kubeadm cluster reconfiguration. Before you begin You need a cluster that was deployed using kubeadm Have administrator credentials (/etc/kubernetes/admin.

Define overall memory and CPU resource limits for a namespace.

This page shows how to use Kube-router for NetworkPolicy. Before you begin You need to have a Kubernetes cluster running. If you do not already have a cluster, you can create one by using any of the cluster installers like Kops, Bootkube, Kubeadm etc. Installing Kube-router addon The Kube-router Addon comes with a Network Policy Controller that watches Kubernetes API server for any NetworkPolicy and pods updated and configures iptables rules and ipsets to allow or block traffic as directed by the policies.

Run and manage both stateless and stateful applications.

Managing confidential settings data using Secrets.

FEATURE STATE: Kubernetes v1.30 [beta] (enabled by default: true) Checkpointing a container is the functionality to create a stateful copy of a running container. Once you have a stateful copy of a container, you could move it to a different computer for debugging or similar purposes. If you move the checkpointed container data to a computer that's able to restore it, that restored container continues to run at exactly the same point it was checkpointed.

FEATURE STATE: Kubernetes v1.27 [beta] This is a community maintained list of official CVEs announced by the Kubernetes Security Response Committee. See Kubernetes Security and Disclosure Information for more details. The Kubernetes project publishes a programmatically accessible feed of published security issues in JSON feed and RSS feed formats. You can access it by executing the following commands: JSON feed RSS feed Link to JSON format curl -Lv https://k8s.io/docs/reference/issues-security/official-cve-feed/index.json Link to RSS format

When using the kubelet's --config-dir flag to specify a drop-in directory for configuration, there is some specific behavior on how different types are merged. Here are some examples of how different data types behave during configuration merging: Structure Fields There are two types of structure fields in a YAML structure: singular (or a scalar type) and embedded (structures that contain scalar types). The configuration merging process handles the overriding of singular and embedded struct fields to create a resulting kubelet configuration.

This page describes Kubernetes security and disclosure information. Security Announcements Join the kubernetes-security-announce group for emails about security and major API announcements. Report a Vulnerability We're extremely grateful for security researchers and users that report vulnerabilities to the Kubernetes Open Source Community. All reports are thoroughly investigated by a set of community volunteers. To make a report, submit your vulnerability to the Kubernetes bug bounty program. This allows triage and handling of the vulnerability with standardized response times.