0 views collected around this technical thread.
Learn how to correctly install, configure, and activate Calico's API server on a Kubernetes cluster—including prerequisites, downloading manifests, adjusting namespaces, pulling and tagging images, generating certificates, applying resources, and verifying the service—to manage Calico custom resources via kubectl.
Learn step‑by‑step how to transition Calico’s data store from etcd to Kubernetes, covering prerequisite checks, locking the datastore, exporting and importing data, reconfiguring calicoctl, applying the new manifests, and unlocking the store, while highlighting benefits and tips for a smooth migration.
This guide walks through installing calicoctl, a Calico command‑line tool for managing Kubernetes network policies, covering prerequisites, manifest deployment for both Kubernetes‑ and etcd‑backed data stores, verification commands, and practical tips for a smooth setup.
This guide walks through preparing two CentOS 7.9 servers, installing Docker and Kubernetes 1.19 components, initializing a master node, joining a worker node, and validating the cluster with a sample Nginx deployment, including common troubleshooting tips.
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.
This guide walks you through setting up a comprehensive Kubernetes monitoring solution—covering component metrics collection, configuring HAProxy for network access, exposing metrics from kube-proxy, Calico, and kube-state-metrics, and integrating everything into Prometheus for reliable cluster health visibility.
This comprehensive course provides a deep dive into Kubernetes networking, covering core concepts, network models, policies, plugins, traffic management, security, multi‑tenant, cross‑cloud, and hybrid‑cloud designs, and offers hands‑on performance optimization techniques across more than 60 video modules.
This article introduces the five most popular Kubernetes CNI network plugins—Flannel, Calico, Weave Net, Cilium, and Canal—detailing their features, typical use‑cases, and installation commands to help you choose the right solution for your cluster.
This article provides a comprehensive overview of Kubernetes network architecture, including CNI plugins, network policies, service discovery, and ingress controllers, with practical configuration examples.
This article provides a detailed overview of Calico's essential and optional components, explaining how each part—such as the API server, Felix, BIRD, confd, Dikastes, CNI plugin, datastore plugin, IPAM plugin, kube‑controllers, Typha, and calicoctl—contributes to networking and network policy enforcement in Kubernetes clusters.
This article explains the fundamentals of Kubernetes networking, describes its flat network architecture, reviews common CNI implementations such as Flannel, Project Calico, and Weave Net, and details the various communication pathways including container‑to‑container, pod‑to‑pod, pod‑to‑service, and internet‑to‑service.
This article explains Kubernetes networking models, detailing the underlay network infrastructure, overlay techniques, and common CNI implementations such as Flannel, Calico, IPVLAN, and VxLAN, while comparing their architectures, protocols, and configuration considerations.
This article explains Calico's IPIP networking mode in Kubernetes, covering its architecture, core components, routing behavior, command‑line examples, and packet‑capture analysis to illustrate how pods communicate across nodes.
This article provides a comprehensive overview of Kubernetes networking by explaining the concepts of underlay and overlay network models, describing their implementations such as flannel host‑gw, Calico BGP, IPVLAN/MACVLAN, and tunneling technologies like VxLAN and IPIP, and offering practical references for each approach.
This article explains Kubernetes NetworkPolicy, covering its purpose, how pod and namespace selectors work, required fields, policy types, and detailed YAML examples, followed by practical scenarios and step‑by‑step commands for deploying and testing network policies in a cluster.
This article explains how Kubernetes ensures container-to-container communication using network namespaces, veth pairs, bridges like docker0, and advanced CNI plugins such as Flannel and Calico, detailing their underlying Linux networking components, routing mechanisms, and deployment considerations for both intra‑host and inter‑host scenarios.
This article explains the fundamentals of Kubernetes networking, compares popular CNI implementations such as Flannel, Calico, and Weave Net, and details the key networking scenarios—including container‑to‑container, pod‑to‑pod, pod‑to‑service, and Internet‑to‑service—required for reliable and secure cluster operation.
This article explains the fundamentals of container networking in Kubernetes, covering network namespaces, veth pairs, bridges, CNI plugins such as Flannel and Calico, their routing modes, and practical command‑line examples that illustrate intra‑host and cross‑host communication.
This article explains Kubernetes container networking fundamentals, the role of Linux network namespaces, veth pairs, bridges, and iptables, and compares same‑host communication via docker0 with cross‑host solutions like CNI plugins (flannel, Calico) and their routing modes.
This article explains the fundamentals of container networking in Kubernetes, covering Linux network namespaces, veth pairs, Docker's default bridge, CNI plugins such as Flannel and Calico, their routing modes, and practical command‑line examples for cross‑host communication.