2cd45b2c54
In e2e test framework, ProxyRequest() is called in kubelet e2e test framework only. In addition, the function works for kubelet as tests which call the function do. So this moves the function into kubelet e2e test framework to make the dependency simple.
89 lines
2.9 KiB
Go
89 lines
2.9 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package lifecycle
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import (
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"fmt"
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"net"
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"net/http"
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"time"
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"k8s.io/api/core/v1"
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"k8s.io/kubernetes/pkg/master/ports"
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"k8s.io/kubernetes/test/e2e/framework"
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"github.com/onsi/ginkgo"
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"github.com/onsi/gomega"
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e2ekubelet "k8s.io/kubernetes/test/e2e/framework/kubelet"
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e2elog "k8s.io/kubernetes/test/e2e/framework/log"
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e2enode "k8s.io/kubernetes/test/e2e/framework/node"
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)
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var _ = SIGDescribe("Ports Security Check [Feature:KubeletSecurity]", func() {
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f := framework.NewDefaultFramework("kubelet-security")
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var node *v1.Node
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var nodeName string
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ginkgo.BeforeEach(func() {
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nodes := framework.GetReadySchedulableNodesOrDie(f.ClientSet)
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gomega.Expect(len(nodes.Items)).NotTo(gomega.BeZero())
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node = &nodes.Items[0]
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nodeName = node.Name
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})
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// make sure kubelet readonly (10255) and cadvisor (4194) ports are disabled via API server proxy
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ginkgo.It(fmt.Sprintf("should not be able to proxy to the readonly kubelet port %v using proxy subresource", ports.KubeletReadOnlyPort), func() {
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result, err := e2ekubelet.ProxyRequest(f.ClientSet, nodeName, "pods/", ports.KubeletReadOnlyPort)
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framework.ExpectNoError(err)
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var statusCode int
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result.StatusCode(&statusCode)
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framework.ExpectNotEqual(statusCode, http.StatusOK)
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})
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ginkgo.It("should not be able to proxy to cadvisor port 4194 using proxy subresource", func() {
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result, err := e2ekubelet.ProxyRequest(f.ClientSet, nodeName, "containers/", 4194)
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framework.ExpectNoError(err)
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var statusCode int
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result.StatusCode(&statusCode)
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framework.ExpectNotEqual(statusCode, http.StatusOK)
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})
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// make sure kubelet readonly (10255) and cadvisor (4194) ports are closed on the public IP address
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disabledPorts := []int{ports.KubeletReadOnlyPort, 4194}
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for _, port := range disabledPorts {
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ginkgo.It(fmt.Sprintf("should not have port %d open on its all public IP addresses", port), func() {
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portClosedTest(f, node, port)
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})
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}
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})
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// checks whether the target port is closed
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func portClosedTest(f *framework.Framework, pickNode *v1.Node, port int) {
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nodeAddrs := e2enode.GetAddresses(pickNode, v1.NodeExternalIP)
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gomega.Expect(len(nodeAddrs)).NotTo(gomega.BeZero())
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for _, addr := range nodeAddrs {
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conn, err := net.DialTimeout("tcp", fmt.Sprintf("%s:%d", addr, port), 1*time.Minute)
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if err == nil {
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conn.Close()
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e2elog.Failf("port %d is not disabled", port)
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}
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}
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}
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