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NetworkPolicy

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Linux Ops Smart Journey
Linux Ops Smart Journey
May 6, 2025 · Operations

Enable Calico API Service in Kubernetes: Step‑by‑Step Guide

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.

APICNICalico
0 likes · 8 min read
Enable Calico API Service in Kubernetes: Step‑by‑Step Guide
Efficient Ops
Efficient Ops
Apr 3, 2023 · Cloud Native

How to Secure Multi‑Tenant Kubernetes Clusters: Best Practices & Architecture

This article explains the concept of multi‑tenant Kubernetes clusters, outlines common enterprise scenarios, and details native security mechanisms such as RBAC, NetworkPolicy, PodSecurityPolicy, OPA, resource quotas, and dedicated nodes to achieve effective isolation and protect sensitive data.

Cloud NativeMulti-tenancyNetworkPolicy
0 likes · 12 min read
How to Secure Multi‑Tenant Kubernetes Clusters: Best Practices & Architecture
Efficient Ops
Efficient Ops
Jun 15, 2022 · Cloud Native

Master Kubernetes NetworkPolicy: Secure Pod Communication with Real‑World Examples

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.

CNICalicoNetworkPolicy
0 likes · 16 min read
Master Kubernetes NetworkPolicy: Secure Pod Communication with Real‑World Examples
Cloud Native Technology Community
Cloud Native Technology Community
Sep 8, 2020 · Cloud Native

Introducing Hierarchical Namespaces in Kubernetes for Secure Multi‑Tenant Clusters

This article explains how Kubernetes hierarchical namespaces (HNC) enable secure multi‑tenant clusters by extending basic namespace capabilities with ownership, policy inheritance, and delegated creation rights, and demonstrates usage through kubectl commands and NetworkPolicy examples.

HNCHierarchical NamespacesNetworkPolicy
0 likes · 9 min read
Introducing Hierarchical Namespaces in Kubernetes for Secure Multi‑Tenant Clusters
Cloud Native Technology Community
Cloud Native Technology Community
Sep 2, 2020 · Cloud Native

Calico Overview, Architecture, Deployment, and Management in Kubernetes

This article provides a comprehensive guide to Calico as a Kubernetes CNI, covering its BGP‑based three‑layer architecture, deployment steps, configuration of etcd certificates, management tools, BGP route‑reflector mode, IPIP tunneling, and network policy implementation for cloud‑native clusters.

BGPCNICalico
0 likes · 17 min read
Calico Overview, Architecture, Deployment, and Management in Kubernetes
Cloud Native Technology Community
Cloud Native Technology Community
May 28, 2019 · Cloud Native

Understanding Kubernetes Native NetworkPolicy: Concepts, Fields, and Examples

This article explains Kubernetes native NetworkPolicy, covering its purpose, supported CNI plugins, detailed field definitions, default behaviors, example policies, and historical changes, providing a comprehensive guide for configuring pod communication rules in a cloud‑native environment.

CNICloudNativeEgress
0 likes · 8 min read
Understanding Kubernetes Native NetworkPolicy: Concepts, Fields, and Examples
360 Tech Engineering
360 Tech Engineering
Jul 6, 2018 · Operations

Implementing Kubernetes NetworkPolicy with Calico: Concepts, Configuration, and Testing

This article explains how Kubernetes NetworkPolicy works with Calico, detailing the policy creation process, configuration templates, component versions, deployment steps, Calico‑felix packet handling, and a practical “deny all traffic” test case, concluding with operational considerations and reference links.

CalicoCloud NativeNetworkPolicy
0 likes · 7 min read
Implementing Kubernetes NetworkPolicy with Calico: Concepts, Configuration, and Testing
360 Zhihui Cloud Developer
360 Zhihui Cloud Developer
Mar 8, 2018 · Cloud Native

How Kubernetes NetworkPolicy Works with Calico: A Step‑by‑Step Guide

This article explains how Kubernetes NetworkPolicy provides namespace‑ and pod‑level network isolation, how Calico translates policies into iptables rules, and walks through configuration templates, test setups, runtime details, packet‑flow analysis, and practical considerations for production use.

CalicoCloud NativeNetworkPolicy
0 likes · 7 min read
How Kubernetes NetworkPolicy Works with Calico: A Step‑by‑Step Guide