Update current feature

Author: fjammes

labs/2_authorization/2_0_RBAC_simple.sh

@@ -0,0 +1,65 @@
+#!/bin/bash
+
+set -e  # Exit on error
+set -o pipefail  # Exit if any command in a pipeline fails
+
+ID="test"  # Change this to a unique identifier if needed
+
+FOO_NAMESPACE="foo-${ID}"
+BAR_NAMESPACE="bar-${ID}"
+
+echo "Creating namespaces..."
+kubectl create namespace "$FOO_NAMESPACE" || true
+kubectl create namespace "$BAR_NAMESPACE" || true
+
+echo "Deploying kubectl-proxy pod in $FOO_NAMESPACE..."
+kubectl apply -f https://raw.githubusercontent.com/k8s-school/k8s-advanced/master/labs/2_authorization/kubectl-proxy.yaml -n "$FOO_NAMESPACE"
+
+echo "Creating services in $FOO_NAMESPACE and $BAR_NAMESPACE..."
+kubectl create service clusterip foo-service --tcp=80:80 -n "$FOO_NAMESPACE" || true
+kubectl create service clusterip bar-service --tcp=80:80 -n "$BAR_NAMESPACE" || true
+
+echo "Waiting for kubectl-proxy pod to be ready..."
+kubectl wait --for=condition=ready pod -l app=kubectl-proxy -n "$FOO_NAMESPACE" --timeout=60s
+
+echo "Fetching kubectl-proxy pod name..."
+PROXY_POD=$(kubectl get pods -n "$FOO_NAMESPACE" -l app=kubectl-proxy -o jsonpath="{.items[0].metadata.name}")
+
+echo "Creating RBAC (Role and RoleBinding) in $FOO_NAMESPACE..."
+kubectl apply -f - <<EOF
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: service-reader
+  namespace: $FOO_NAMESPACE
+rules:
+- apiGroups: [""]
+  resources: ["services"]
+  verbs: ["get", "list"]
+EOF
+
+kubectl apply -f - <<EOF
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: service-reader-binding
+  namespace: $FOO_NAMESPACE
+subjects:
+- kind: ServiceAccount
+  name: default
+  namespace: $FOO_NAMESPACE
+roleRef:
+  kind: Role
+  name: service-reader
+  apiGroup: rbac.authorization.k8s.io
+EOF
+
+echo "Running tests inside kubectl-proxy pod..."
+
+echo "Testing access to services in $FOO_NAMESPACE (should succeed)..."
+kubectl exec -n "$FOO_NAMESPACE" "$PROXY_POD" -- curl -s -o /dev/null -w "%{http_code}" http://localhost:8001/api/v1/namespaces/"$FOO_NAMESPACE"/services
+
+echo "Testing access to services in $BAR_NAMESPACE (should be forbidden)..."
+kubectl exec -n "$FOO_NAMESPACE" "$PROXY_POD" -- curl -s -o /dev/null -w "%{http_code}" http://localhost:8001/api/v1/namespaces/"$BAR_NAMESPACE"/services
+
+echo "Test completed!"