kubernetes allowlist_test 源码

2022-09-18
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kubernetes allowlist_test 代码

文件路径：/pkg/kubelet/sysctl/allowlist_test.go

/*
Copyright 2016 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 sysctl

import (
	"testing"
)

func TestNewAllowlist(t *testing.T) {
	type Test struct {
		sysctls []string
		err     bool
	}
	for _, test := range []Test{
		{sysctls: []string{"kernel.msg*", "kernel.sem"}},
		{sysctls: []string{"kernel/msg*", "kernel/sem"}},
		{sysctls: []string{" kernel.msg*"}, err: true},
		{sysctls: []string{"kernel.msg* "}, err: true},
		{sysctls: []string{"net.-"}, err: true},
		{sysctls: []string{"net.*.foo"}, err: true},
		{sysctls: []string{"net.*/foo"}, err: true},
		{sysctls: []string{"foo"}, err: true},
	} {
		_, err := NewAllowlist(append(SafeSysctlAllowlist(), test.sysctls...))
		if test.err && err == nil {
			t.Errorf("expected an error creating a allowlist for %v", test.sysctls)
		} else if !test.err && err != nil {
			t.Errorf("got unexpected error creating a allowlist for %v: %v", test.sysctls, err)
		}
	}
}

func TestAllowlist(t *testing.T) {
	type Test struct {
		sysctl           string
		hostNet, hostIPC bool
	}
	valid := []Test{
		{sysctl: "kernel.shm_rmid_forced"},
		{sysctl: "kernel/shm_rmid_forced"},
		{sysctl: "net.ipv4.ip_local_port_range"},
		{sysctl: "kernel.msgmax"},
		{sysctl: "kernel.sem"},
		{sysctl: "kernel/sem"},
	}
	invalid := []Test{
		{sysctl: "kernel.shm_rmid_forced", hostIPC: true},
		{sysctl: "net.ipv4.ip_local_port_range", hostNet: true},
		{sysctl: "foo"},
		{sysctl: "net.a.b.c", hostNet: false},
		{sysctl: "net.ipv4.ip_local_port_range.a.b.c", hostNet: false},
		{sysctl: "kernel.msgmax", hostIPC: true},
		{sysctl: "kernel.sem", hostIPC: true},
	}

	w, err := NewAllowlist(append(SafeSysctlAllowlist(), "kernel.msg*", "kernel.sem"))
	if err != nil {
		t.Fatalf("failed to create allowlist: %v", err)
	}

	for _, test := range valid {
		if err := w.validateSysctl(test.sysctl, test.hostNet, test.hostIPC); err != nil {
			t.Errorf("expected to be allowlisted: %+v, got: %v", test, err)
		}
	}

	for _, test := range invalid {
		if err := w.validateSysctl(test.sysctl, test.hostNet, test.hostIPC); err == nil {
			t.Errorf("expected to be rejected: %+v", test)
		}
	}
}

相关信息

kubernetes 源码目录

相关文章

kubernetes allowlist 源码

kubernetes namespace 源码

kubernetes namespace_test 源码

kubernetes safe_sysctls 源码

kubernetes util 源码

kubernetes util_test 源码

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所属分类： 后端技术
本文标签： docker golang
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