Enforce Kubernetes network segmentation using Calico CNI network policies and global network policies to control pod-to-pod traffic, restrict egress, and implement zero-trust microsegmentation.
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| name | implementing-container-network-policies-with-calico |
| description | Enforce Kubernetes network segmentation using Calico CNI network policies and global network policies to control pod-to-pod traffic, restrict egress, and implement zero-trust microsegmentation. |
| domain | cybersecurity |
| subdomain | container-security |
| tags | - container-security - kubernetes - calico - network-policy - microsegmentation - cni |
| version | '1.0' |
| author | mahipal |
| license | Apache-2.0 |
| nist_csf | - PR.PS-01 - PR.IR-01 - ID.AM-08 - DE.CM-01 |
Calico provides Kubernetes-native and extended network policy enforcement through its CNI plugin. This skill covers creating and auditing Calico NetworkPolicy and GlobalNetworkPolicy resources to implement pod-to-pod traffic control, namespace isolation, egress restrictions, and DNS-based policy rules using calicoctl and the Kubernetes API.
kubernetes client libraryUse calicoctl and kubectl to inventory current network policies and identify unprotected namespaces.
Create default-deny ingress and egress policies per namespace as a zero-trust baseline.
Define granular allow rules for legitimate pod-to-pod and pod-to-service communication.
Test connectivity between pods to verify policies are correctly enforced.
JSON audit report listing all network policies, unprotected namespaces, policy rule counts, and connectivity test results.
Prerequisites
Time Estimate
15-45 minutes depending on use case complexity
Steps
Common Pitfalls
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Use when skill capabilities match your task, clear ROI on time saved, and you can validate outputs. Best for repetitive tasks, learning, and quality improvement.
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Avoid when task requires deep expertise you can't validate, involves sensitive decisions, or when learning process is more valuable than speed of completion.
mukul975/Anthropic-Cybersecurity-Skills
mukul975/Anthropic-Cybersecurity-Skills
mukul975/Anthropic-Cybersecurity-Skills
mukul975/Anthropic-Cybersecurity-Skills
mukul975/Anthropic-Cybersecurity-Skills
mukul975/Anthropic-Cybersecurity-Skills
implementing-container-network-policies-with-calico has been reliable in day-to-day use. Documentation quality is above average for community skills.
Keeps context tight: implementing-container-network-policies-with-calico is the kind of skill you can hand to a new teammate without a long onboarding doc.
Keeps context tight: implementing-container-network-policies-with-calico is the kind of skill you can hand to a new teammate without a long onboarding doc.
Registry listing for implementing-container-network-policies-with-calico matched our evaluation — installs cleanly and behaves as described in the markdown.
Solid pick for teams standardizing on skills: implementing-container-network-policies-with-calico is focused, and the summary matches what you get after install.
We added implementing-container-network-policies-with-calico from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
We added implementing-container-network-policies-with-calico from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
I recommend implementing-container-network-policies-with-calico for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.
Useful defaults in implementing-container-network-policies-with-calico — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.
Useful defaults in implementing-container-network-policies-with-calico — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.
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