K8s networking

Skill ComeOnOliver/skillshub/skills/rohitg00/kubectl-mcp-server/k8s-networking

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Install

npx -y skills add ComeOnOliver/skillshub --skill k8s-networking

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SKILL.md

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Kubernetes Networking

Manage Kubernetes networking resources using kubectl-mcp-server's networking tools.

When to Apply

Use this skill when:

User mentions: "service", "ingress", "endpoint", "network policy", "load balancer"
Operations: exposing applications, configuring routing, network isolation
Keywords: "connectivity", "DNS", "traffic", "port", "firewall"

Priority Rules

Priority	Rule	Impact	Tools
1	Check endpoints before troubleshooting services	CRITICAL	`get_endpoints`
2	Verify service selector matches pod labels	HIGH	`get_services`, `get_pods`
3	Review network policies for isolation	HIGH	`get_network_policies`
4	Test DNS resolution from within pods	MEDIUM	`kubectl_exec`

Quick Reference

Task	Tool	Example
List services	`get_services`	`get_services(namespace)`
Check backends	`get_endpoints`	`get_endpoints(namespace)`
List ingresses	`get_ingresses`	`get_ingresses(namespace)`
Network policies	`get_network_policies`	`get_network_policies(namespace)`

Services

get_services(namespace="default")

describe_service(name="my-service", namespace="default")

create_service(
    name="my-service",
    namespace="default",
    selector={"app": "my-app"},
    ports=[{"port": 80, "targetPort": 8080}]
)

create_service(
    name="my-lb",
    namespace="default",
    type="LoadBalancer",
    selector={"app": "my-app"},
    ports=[{"port": 443, "targetPort": 8443}]
)

Endpoints

get_endpoints(namespace="default")

Ingress

get_ingresses(namespace="default")

describe_ingress(name="my-ingress", namespace="default")

kubectl_apply(manifest="""
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: my-ingress
  namespace: default
spec:
  rules:
  - host: app.example.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: my-service
            port:
              number: 80
""")

Network Policies

get_network_policies(namespace="default")

describe_network_policy(name="deny-all", namespace="default")

kubectl_apply(manifest="""
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: deny-all
  namespace: default
spec:
  podSelector: {}
  policyTypes:
  - Ingress
  - Egress
""")

kubectl_apply(manifest="""
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: allow-web
  namespace: default
spec:
  podSelector:
    matchLabels:
      app: web
  ingress:
  - from:
    - podSelector:
        matchLabels:
          app: frontend
    ports:
    - port: 80
""")

Troubleshooting Connectivity

get_endpoints(namespace="default")

get_network_policies(namespace="default")

kubectl_exec(
    pod="debug-pod",
    namespace="default",
    command="nslookup my-service.default.svc.cluster.local"
)

Related Skills

k8s-service-mesh - Istio traffic management
k8s-cilium - Cilium network policies

What ships with it

Read from the repository

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