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This article compares Flannel and Calico, two Kubernetes CNI plugins, detailing their architectures, backend mechanisms, routing models, overlay and non‑overlay options, and highlighting Flannel's simplicity for small clusters versus Calico's richer feature set for larger, production‑grade environments.
Kubernetes RBAC authenticates users and programs by verifying who can perform which verbs on which resources, using ServiceAccounts, Roles, RoleBindings, ClusterRoles and ClusterRoleBindings, and the article demonstrates these concepts through production scenarios such as a TCF framework pod communication setup and full‑admin access via token‑based kubeconfig.
This guide details the upgrade procedures, prerequisites, and impact considerations for OceanBase, OBproxy, OCP, and OB‑DashBoard across Kubernetes and bare‑metal environments, providing step‑by‑step commands, dashboard actions, and DBA precautions to ensure a smooth transition.
This article explains how Alibaba Cloud ACK Backup Center simplifies Kubernetes disaster recovery and cross‑cluster migration by offering automated resource‑adjustment policies, detailed backup and restore workflows, and a step‑by‑step best‑practice example for migrating a stateful application with custom YAML configurations.
This article provides a step‑by‑step guide to building a custom Kubernetes controller in Go that uses Prometheus metrics to intelligently schedule Flink TaskManager Pods, covering the underlying scheduler concepts, code implementation, Docker image creation, RBAC setup, deployment, testing, and advanced considerations.
This article answers ten common Kubernetes questions, covering pod scheduling strategies, OOM behavior, dynamic ConfigMap updates, pod stability, ClusterIP service load balancing, log collection, liveness probes, scaling mechanisms, exec access, and troubleshooting container restarts, providing concise explanations for each scenario.
This guide walks you through upgrading the ob‑operator, creating S3 credentials, configuring an OBTenantBackupPolicy YAML, applying the backup, and verifying the backup status to achieve a full data backup of an OceanBase 4.2.5 tenant to Baidu Cloud BOS using Kubernetes.
SpinKube combines Spin Operator, containerd‑shim‑spin, and an upcoming runtime‑class‑manager to deliver a lightweight, fast‑starting WebAssembly runtime on Kubernetes that addresses the dependency, resource, and image‑size challenges of traditional container‑based serverless architectures.
This guide walks through deploying VictoriaLogs in Kubernetes with Helm, configuring Promtail, exploring its LogsSQL query language, comparing resource usage to Grafana Loki, and integrating the VictoriaLogs datasource into Grafana for efficient, low‑overhead log monitoring.
This guide walks you through deploying OceanBase OBProxy and the OceanBase Dashboard on a Kubernetes cluster using yaml manifests, a setup script, and Helm, covering environment requirements, configuration details, verification steps, and access instructions.