f2cfbf44b1
This changes the text registration so that tags for which the framework has a dedicated API (features, feature gates, slow, serial, etc.) those APIs are used. Arbitrary, custom tags are still left in place for now.
92 lines
3.0 KiB
Go
92 lines
3.0 KiB
Go
/*
|
|
Copyright 2018 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package gcp
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"net"
|
|
"net/http"
|
|
"time"
|
|
|
|
v1 "k8s.io/api/core/v1"
|
|
"k8s.io/kubernetes/pkg/cluster/ports"
|
|
"k8s.io/kubernetes/test/e2e/feature"
|
|
"k8s.io/kubernetes/test/e2e/framework"
|
|
e2ekubelet "k8s.io/kubernetes/test/e2e/framework/kubelet"
|
|
e2enode "k8s.io/kubernetes/test/e2e/framework/node"
|
|
admissionapi "k8s.io/pod-security-admission/api"
|
|
|
|
"github.com/onsi/ginkgo/v2"
|
|
)
|
|
|
|
var _ = SIGDescribe("Ports Security Check", feature.KubeletSecurity, func() {
|
|
f := framework.NewDefaultFramework("kubelet-security")
|
|
f.NamespacePodSecurityLevel = admissionapi.LevelPrivileged
|
|
|
|
var node *v1.Node
|
|
var nodeName string
|
|
|
|
ginkgo.BeforeEach(func(ctx context.Context) {
|
|
var err error
|
|
node, err = e2enode.GetRandomReadySchedulableNode(ctx, f.ClientSet)
|
|
framework.ExpectNoError(err)
|
|
nodeName = node.Name
|
|
})
|
|
|
|
// make sure kubelet readonly (10255) and cadvisor (4194) ports are disabled via API server proxy
|
|
ginkgo.It(fmt.Sprintf("should not be able to proxy to the readonly kubelet port %v using proxy subresource", ports.KubeletReadOnlyPort), func(ctx context.Context) {
|
|
result, err := e2ekubelet.ProxyRequest(ctx, f.ClientSet, nodeName, "pods/", ports.KubeletReadOnlyPort)
|
|
framework.ExpectNoError(err)
|
|
|
|
var statusCode int
|
|
result.StatusCode(&statusCode)
|
|
framework.ExpectNotEqual(statusCode, http.StatusOK)
|
|
})
|
|
ginkgo.It("should not be able to proxy to cadvisor port 4194 using proxy subresource", func(ctx context.Context) {
|
|
result, err := e2ekubelet.ProxyRequest(ctx, f.ClientSet, nodeName, "containers/", 4194)
|
|
framework.ExpectNoError(err)
|
|
|
|
var statusCode int
|
|
result.StatusCode(&statusCode)
|
|
framework.ExpectNotEqual(statusCode, http.StatusOK)
|
|
})
|
|
|
|
// make sure kubelet readonly (10255) and cadvisor (4194) ports are closed on the public IP address
|
|
disabledPorts := []int{ports.KubeletReadOnlyPort, 4194}
|
|
for _, port := range disabledPorts {
|
|
port := port
|
|
ginkgo.It(fmt.Sprintf("should not have port %d open on its all public IP addresses", port), func(ctx context.Context) {
|
|
portClosedTest(f, node, port)
|
|
})
|
|
}
|
|
})
|
|
|
|
// checks whether the target port is closed
|
|
func portClosedTest(f *framework.Framework, pickNode *v1.Node, port int) {
|
|
nodeAddrs := e2enode.GetAddresses(pickNode, v1.NodeExternalIP)
|
|
framework.ExpectNotEqual(len(nodeAddrs), 0)
|
|
|
|
for _, addr := range nodeAddrs {
|
|
conn, err := net.DialTimeout("tcp", fmt.Sprintf("%s:%d", addr, port), 1*time.Minute)
|
|
if err == nil {
|
|
conn.Close()
|
|
framework.Failf("port %d is not disabled", port)
|
|
}
|
|
}
|
|
}
|