mcp-k8s-context-server/
├── k8s_mcp_server.py        # FastMCP server (all tools)
├── requirements.txt         # Python dependencies
├── Dockerfile               # Container image definition
├── k8s/
│   ├── serviceaccount.yaml  # ServiceAccount + Namespace
│   ├── role.yaml            # Least-privilege ClusterRole (read-only)
│   ├── rolebinding.yaml     # ClusterRoleBinding
│   └── deployment.yaml      # Deployment + Service
└── .github/
    └── workflows/
        └── ci.yml           # Build + kubeconform validation

# Create and activate a virtual environment
python -m venv .venv && source .venv/bin/activate

# Install dependencies
pip install -r requirements.txt

# Run with local kubeconfig (falls back automatically from in-cluster config)
python k8s_mcp_server.py

# Install minikube, kubectl, docker
minikube version   # >= 1.32
kubectl version    # >= 1.28
docker version     # >= 24

minikube start --cpus=2 --memory=4096

minikube addons enable metrics-server

# Build locally
docker build -t mcp-k8s-server:latest .

# Load into minikube's image registry (no registry push needed)
minikube image load mcp-k8s-server:latest

# Verify the image is available
minikube image ls | grep mcp-k8s-server

# Apply in dependency order: SA → Role → Binding → Deployment
kubectl apply -f k8s/serviceaccount.yaml
kubectl apply -f k8s/role.yaml
kubectl apply -f k8s/rolebinding.yaml
kubectl apply -f k8s/deployment.yaml

kubectl get pods -n mcp-system
# Expected:
# NAME                              READY   STATUS    RESTARTS   AGE
# mcp-k8s-server-xxxxxxxxx-xxxxx   1/1     Running   0          30s

kubectl logs -n mcp-system deploy/mcp-k8s-server
# Expected: "Using in-cluster Kubernetes config (ServiceAccount token)"

# Port-forward to access the server from your laptop
kubectl port-forward -n mcp-system svc/mcp-k8s-server 8000:8000 &

# Create a test pod to query
kubectl run nginx-test --image=nginx --restart=Never

# Test list_pods
curl -s http://localhost:8000/tools/list_pods \
  -H 'Content-Type: application/json' \
  -d '{"namespace":"default"}' | jq .

# Test get_pod_logs
curl -s http://localhost:8000/tools/get_pod_logs \
  -H 'Content-Type: application/json' \
  -d '{"pod_name":"nginx-test","namespace":"default","tail_lines":20}' | jq .

# Test analyze_pod_health
curl -s http://localhost:8000/tools/analyze_pod_health \
  -H 'Content-Type: application/json' \
  -d '{"namespace":"default","hours":1}' | jq .

# Exec into the pod and try to delete another pod using the SA token
MCP_POD=$(kubectl get pod -n mcp-system -l app=mcp-k8s-server -o jsonpath='{.items[0].metadata.name}')

kubectl exec -n mcp-system $MCP_POD -- \
  kubectl delete pod nginx-test --namespace=default \
  --token=$(cat /var/run/secrets/kubernetes.io/serviceaccount/token) \
  --server=https://kubernetes.default.svc \
  --certificate-authority=/var/run/secrets/kubernetes.io/serviceaccount/ca.crt

Error from server (Forbidden): pods "nginx-test" is forbidden:
  User "system:serviceaccount:mcp-system:mcp-server-sa" cannot delete
  resource "pods" in API group "" in the namespace "default"

Error from server (Forbidden): pods is forbidden: User "system:serviceaccount:mcp-server:mcp-server-sa" cannot create resource "pods" in API group "" in the namespace "mcp-server"