You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
428 lines
14 KiB
428 lines
14 KiB
// Copyright © 2017 Aqua Security Software Ltd. <info@aquasec.com>
|
|
//
|
|
// 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 cmd
|
|
|
|
import (
|
|
"io/ioutil"
|
|
"os"
|
|
"path/filepath"
|
|
"reflect"
|
|
"strconv"
|
|
"testing"
|
|
|
|
"github.com/spf13/viper"
|
|
)
|
|
|
|
var g string
|
|
var e []error
|
|
var eIndex int
|
|
|
|
func fakeps(proc string) string {
|
|
return g
|
|
}
|
|
|
|
func fakestat(file string) (os.FileInfo, error) {
|
|
err := e[eIndex]
|
|
eIndex++
|
|
return nil, err
|
|
}
|
|
|
|
func TestVerifyBin(t *testing.T) {
|
|
cases := []struct {
|
|
proc string
|
|
psOut string
|
|
exp bool
|
|
}{
|
|
{proc: "single", psOut: "single", exp: true},
|
|
{proc: "single", psOut: "", exp: false},
|
|
{proc: "two words", psOut: "two words", exp: true},
|
|
{proc: "two words", psOut: "", exp: false},
|
|
{proc: "cmd", psOut: "cmd param1 param2", exp: true},
|
|
{proc: "cmd param", psOut: "cmd param1 param2", exp: true},
|
|
{proc: "cmd param", psOut: "cmd", exp: false},
|
|
{proc: "cmd", psOut: "cmd x \ncmd y", exp: true},
|
|
{proc: "cmd y", psOut: "cmd x \ncmd y", exp: true},
|
|
{proc: "cmd", psOut: "/usr/bin/cmd", exp: true},
|
|
{proc: "cmd", psOut: "kube-cmd", exp: false},
|
|
{proc: "cmd", psOut: "/usr/bin/kube-cmd", exp: false},
|
|
}
|
|
|
|
psFunc = fakeps
|
|
for id, c := range cases {
|
|
t.Run(strconv.Itoa(id), func(t *testing.T) {
|
|
g = c.psOut
|
|
v := verifyBin(c.proc)
|
|
if v != c.exp {
|
|
t.Fatalf("Expected %v got %v", c.exp, v)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestFindExecutable(t *testing.T) {
|
|
cases := []struct {
|
|
candidates []string // list of executables we'd consider
|
|
psOut string // fake output from ps
|
|
exp string // the one we expect to find in the (fake) ps output
|
|
expErr bool
|
|
}{
|
|
{candidates: []string{"one", "two", "three"}, psOut: "two", exp: "two"},
|
|
{candidates: []string{"one", "two", "three"}, psOut: "two three", exp: "two"},
|
|
{candidates: []string{"one double", "two double", "three double"}, psOut: "two double is running", exp: "two double"},
|
|
{candidates: []string{"one", "two", "three"}, psOut: "blah", expErr: true},
|
|
{candidates: []string{"one double", "two double", "three double"}, psOut: "two", expErr: true},
|
|
{candidates: []string{"apiserver", "kube-apiserver"}, psOut: "kube-apiserver", exp: "kube-apiserver"},
|
|
{candidates: []string{"apiserver", "kube-apiserver", "hyperkube-apiserver"}, psOut: "kube-apiserver", exp: "kube-apiserver"},
|
|
}
|
|
|
|
psFunc = fakeps
|
|
for id, c := range cases {
|
|
t.Run(strconv.Itoa(id), func(t *testing.T) {
|
|
g = c.psOut
|
|
e, err := findExecutable(c.candidates)
|
|
if e != c.exp {
|
|
t.Fatalf("Expected %v got %v", c.exp, e)
|
|
}
|
|
|
|
if err == nil && c.expErr {
|
|
t.Fatalf("Expected error")
|
|
}
|
|
|
|
if err != nil && !c.expErr {
|
|
t.Fatalf("Didn't expect error: %v", err)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestGetBinaries(t *testing.T) {
|
|
cases := []struct {
|
|
config map[string]interface{}
|
|
psOut string
|
|
exp map[string]string
|
|
}{
|
|
{
|
|
config: map[string]interface{}{"components": []string{"apiserver"}, "apiserver": map[string]interface{}{"bins": []string{"apiserver", "kube-apiserver"}}},
|
|
psOut: "kube-apiserver",
|
|
exp: map[string]string{"apiserver": "kube-apiserver"},
|
|
},
|
|
{
|
|
// "thing" is not in the list of components
|
|
config: map[string]interface{}{"components": []string{"apiserver"}, "apiserver": map[string]interface{}{"bins": []string{"apiserver", "kube-apiserver"}}, "thing": map[string]interface{}{"bins": []string{"something else", "thing"}}},
|
|
psOut: "kube-apiserver thing",
|
|
exp: map[string]string{"apiserver": "kube-apiserver"},
|
|
},
|
|
{
|
|
// "anotherthing" in list of components but doesn't have a defintion
|
|
config: map[string]interface{}{"components": []string{"apiserver", "anotherthing"}, "apiserver": map[string]interface{}{"bins": []string{"apiserver", "kube-apiserver"}}, "thing": map[string]interface{}{"bins": []string{"something else", "thing"}}},
|
|
psOut: "kube-apiserver thing",
|
|
exp: map[string]string{"apiserver": "kube-apiserver"},
|
|
},
|
|
{
|
|
// more than one component
|
|
config: map[string]interface{}{"components": []string{"apiserver", "thing"}, "apiserver": map[string]interface{}{"bins": []string{"apiserver", "kube-apiserver"}}, "thing": map[string]interface{}{"bins": []string{"something else", "thing"}}},
|
|
psOut: "kube-apiserver \nthing",
|
|
exp: map[string]string{"apiserver": "kube-apiserver", "thing": "thing"},
|
|
},
|
|
{
|
|
// default binary to component name
|
|
config: map[string]interface{}{"components": []string{"apiserver", "thing"}, "apiserver": map[string]interface{}{"bins": []string{"apiserver", "kube-apiserver"}}, "thing": map[string]interface{}{"bins": []string{"something else", "thing"}, "optional": true}},
|
|
psOut: "kube-apiserver \notherthing some params",
|
|
exp: map[string]string{"apiserver": "kube-apiserver", "thing": "thing"},
|
|
},
|
|
}
|
|
|
|
v := viper.New()
|
|
psFunc = fakeps
|
|
|
|
for id, c := range cases {
|
|
t.Run(strconv.Itoa(id), func(t *testing.T) {
|
|
g = c.psOut
|
|
for k, val := range c.config {
|
|
v.Set(k, val)
|
|
}
|
|
m := getBinaries(v)
|
|
if !reflect.DeepEqual(m, c.exp) {
|
|
t.Fatalf("Got %v\nExpected %v", m, c.exp)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestMultiWordReplace(t *testing.T) {
|
|
cases := []struct {
|
|
input string
|
|
sub string
|
|
subname string
|
|
output string
|
|
}{
|
|
{input: "Here's a file with no substitutions", sub: "blah", subname: "blah", output: "Here's a file with no substitutions"},
|
|
{input: "Here's a file with a substitution", sub: "blah", subname: "substitution", output: "Here's a file with a blah"},
|
|
{input: "Here's a file with multi-word substitutions", sub: "multi word", subname: "multi-word", output: "Here's a file with 'multi word' substitutions"},
|
|
{input: "Here's a file with several several substitutions several", sub: "blah", subname: "several", output: "Here's a file with blah blah substitutions blah"},
|
|
}
|
|
for id, c := range cases {
|
|
t.Run(strconv.Itoa(id), func(t *testing.T) {
|
|
s := multiWordReplace(c.input, c.subname, c.sub)
|
|
if s != c.output {
|
|
t.Fatalf("Expected %s got %s", c.output, s)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestKubeVersionRegex(t *testing.T) {
|
|
ver := getVersionFromKubectlOutput(`Client Version: v1.8.0
|
|
Server Version: v1.8.12
|
|
`)
|
|
if ver != "1.8" {
|
|
t.Fatalf("Expected 1.8 got %s", ver)
|
|
}
|
|
|
|
ver = getVersionFromKubectlOutput("Something completely different")
|
|
if ver != "1.6" {
|
|
t.Fatalf("Expected 1.6 got %s", ver)
|
|
}
|
|
}
|
|
|
|
func TestFindConfigFile(t *testing.T) {
|
|
cases := []struct {
|
|
input []string
|
|
statResults []error
|
|
exp string
|
|
}{
|
|
{input: []string{"myfile"}, statResults: []error{nil}, exp: "myfile"},
|
|
{input: []string{"thisfile", "thatfile"}, statResults: []error{os.ErrNotExist, nil}, exp: "thatfile"},
|
|
{input: []string{"thisfile", "thatfile"}, statResults: []error{os.ErrNotExist, os.ErrNotExist}, exp: ""},
|
|
}
|
|
|
|
statFunc = fakestat
|
|
for id, c := range cases {
|
|
t.Run(strconv.Itoa(id), func(t *testing.T) {
|
|
e = c.statResults
|
|
eIndex = 0
|
|
conf := findConfigFile(c.input)
|
|
if conf != c.exp {
|
|
t.Fatalf("Got %s expected %s", conf, c.exp)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestGetConfigFiles(t *testing.T) {
|
|
cases := []struct {
|
|
config map[string]interface{}
|
|
exp map[string]string
|
|
statResults []error
|
|
}{
|
|
{
|
|
config: map[string]interface{}{"components": []string{"apiserver"}, "apiserver": map[string]interface{}{"confs": []string{"apiserver", "kube-apiserver"}}},
|
|
statResults: []error{os.ErrNotExist, nil},
|
|
exp: map[string]string{"apiserver": "kube-apiserver"},
|
|
},
|
|
{
|
|
// Component "thing" isn't included in the list of components
|
|
config: map[string]interface{}{
|
|
"components": []string{"apiserver"},
|
|
"apiserver": map[string]interface{}{"confs": []string{"apiserver", "kube-apiserver"}},
|
|
"thing": map[string]interface{}{"confs": []string{"/my/file/thing"}}},
|
|
statResults: []error{os.ErrNotExist, nil},
|
|
exp: map[string]string{"apiserver": "kube-apiserver"},
|
|
},
|
|
{
|
|
// More than one component
|
|
config: map[string]interface{}{
|
|
"components": []string{"apiserver", "thing"},
|
|
"apiserver": map[string]interface{}{"confs": []string{"apiserver", "kube-apiserver"}},
|
|
"thing": map[string]interface{}{"confs": []string{"/my/file/thing"}}},
|
|
statResults: []error{os.ErrNotExist, nil, nil},
|
|
exp: map[string]string{"apiserver": "kube-apiserver", "thing": "/my/file/thing"},
|
|
},
|
|
{
|
|
// Default thing to specified default config
|
|
config: map[string]interface{}{
|
|
"components": []string{"apiserver", "thing"},
|
|
"apiserver": map[string]interface{}{"confs": []string{"apiserver", "kube-apiserver"}},
|
|
"thing": map[string]interface{}{"confs": []string{"/my/file/thing"}, "defaultconf": "another/thing"}},
|
|
statResults: []error{os.ErrNotExist, nil, os.ErrNotExist},
|
|
exp: map[string]string{"apiserver": "kube-apiserver", "thing": "another/thing"},
|
|
},
|
|
{
|
|
// Default thing to component name
|
|
config: map[string]interface{}{
|
|
"components": []string{"apiserver", "thing"},
|
|
"apiserver": map[string]interface{}{"confs": []string{"apiserver", "kube-apiserver"}},
|
|
"thing": map[string]interface{}{"confs": []string{"/my/file/thing"}}},
|
|
statResults: []error{os.ErrNotExist, nil, os.ErrNotExist},
|
|
exp: map[string]string{"apiserver": "kube-apiserver", "thing": "thing"},
|
|
},
|
|
}
|
|
|
|
v := viper.New()
|
|
statFunc = fakestat
|
|
|
|
for id, c := range cases {
|
|
t.Run(strconv.Itoa(id), func(t *testing.T) {
|
|
for k, val := range c.config {
|
|
v.Set(k, val)
|
|
}
|
|
e = c.statResults
|
|
eIndex = 0
|
|
|
|
m := getConfigFiles(v)
|
|
if !reflect.DeepEqual(m, c.exp) {
|
|
t.Fatalf("Got %v\nExpected %v", m, c.exp)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestGetServiceFiles(t *testing.T) {
|
|
cases := []struct {
|
|
config map[string]interface{}
|
|
exp map[string]string
|
|
statResults []error
|
|
}{
|
|
{
|
|
config: map[string]interface{}{
|
|
"components": []string{"kubelet"},
|
|
"kubelet": map[string]interface{}{"svc": []string{"kubelet", "10-kubeadm.conf"}},
|
|
},
|
|
statResults: []error{os.ErrNotExist, nil},
|
|
exp: map[string]string{"kubelet": "10-kubeadm.conf"},
|
|
},
|
|
{
|
|
// Component "thing" isn't included in the list of components
|
|
config: map[string]interface{}{
|
|
"components": []string{"kubelet"},
|
|
"kubelet": map[string]interface{}{"svc": []string{"kubelet", "10-kubeadm.conf"}},
|
|
"thing": map[string]interface{}{"svc": []string{"/my/file/thing"}},
|
|
},
|
|
statResults: []error{os.ErrNotExist, nil},
|
|
exp: map[string]string{"kubelet": "10-kubeadm.conf"},
|
|
},
|
|
{
|
|
// More than one component
|
|
config: map[string]interface{}{
|
|
"components": []string{"kubelet", "thing"},
|
|
"kubelet": map[string]interface{}{"svc": []string{"kubelet", "10-kubeadm.conf"}},
|
|
"thing": map[string]interface{}{"svc": []string{"/my/file/thing"}},
|
|
},
|
|
statResults: []error{os.ErrNotExist, nil, nil},
|
|
exp: map[string]string{"kubelet": "10-kubeadm.conf", "thing": "/my/file/thing"},
|
|
},
|
|
{
|
|
// Default thing to specified default service
|
|
config: map[string]interface{}{
|
|
"components": []string{"kubelet", "thing"},
|
|
"kubelet": map[string]interface{}{"svc": []string{"kubelet", "10-kubeadm.conf"}},
|
|
"thing": map[string]interface{}{"svc": []string{"/my/file/thing"}, "defaultsvc": "another/thing"},
|
|
},
|
|
statResults: []error{os.ErrNotExist, nil, os.ErrNotExist},
|
|
exp: map[string]string{"kubelet": "10-kubeadm.conf", "thing": "another/thing"},
|
|
},
|
|
{
|
|
// Default thing to component name
|
|
config: map[string]interface{}{
|
|
"components": []string{"kubelet", "thing"},
|
|
"kubelet": map[string]interface{}{"svc": []string{"kubelet", "10-kubeadm.conf"}},
|
|
"thing": map[string]interface{}{"svc": []string{"/my/file/thing"}},
|
|
},
|
|
statResults: []error{os.ErrNotExist, nil, os.ErrNotExist},
|
|
exp: map[string]string{"kubelet": "10-kubeadm.conf", "thing": "thing"},
|
|
},
|
|
}
|
|
|
|
v := viper.New()
|
|
statFunc = fakestat
|
|
|
|
for id, c := range cases {
|
|
t.Run(strconv.Itoa(id), func(t *testing.T) {
|
|
for k, val := range c.config {
|
|
v.Set(k, val)
|
|
}
|
|
e = c.statResults
|
|
eIndex = 0
|
|
|
|
m := getServiceFiles(v)
|
|
if !reflect.DeepEqual(m, c.exp) {
|
|
t.Fatalf("Got %v\nExpected %v", m, c.exp)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestMakeSubsitutions(t *testing.T) {
|
|
cases := []struct {
|
|
input string
|
|
subst map[string]string
|
|
exp string
|
|
}{
|
|
{input: "Replace $thisbin", subst: map[string]string{"this": "that"}, exp: "Replace that"},
|
|
{input: "Replace $thisbin", subst: map[string]string{"this": "that", "here": "there"}, exp: "Replace that"},
|
|
{input: "Replace $thisbin and $herebin", subst: map[string]string{"this": "that", "here": "there"}, exp: "Replace that and there"},
|
|
}
|
|
for _, c := range cases {
|
|
t.Run(c.input, func(t *testing.T) {
|
|
s := makeSubstitutions(c.input, "bin", c.subst)
|
|
if s != c.exp {
|
|
t.Fatalf("Got %s expected %s", s, c.exp)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestGetConfigFilePath(t *testing.T) {
|
|
var err error
|
|
cfgDir, err = ioutil.TempDir("", "kube-bench-test")
|
|
if err != nil {
|
|
t.Fatalf("Failed to create temp directory")
|
|
}
|
|
defer os.RemoveAll(cfgDir)
|
|
d := filepath.Join(cfgDir, "1.8")
|
|
err = os.Mkdir(d, 0666)
|
|
if err != nil {
|
|
t.Fatalf("Failed to create temp file")
|
|
}
|
|
ioutil.WriteFile(filepath.Join(d, "master.yaml"), []byte("hello world"), 0666)
|
|
|
|
cases := []struct {
|
|
specifiedVersion string
|
|
runningVersion string
|
|
succeed bool
|
|
exp string
|
|
}{
|
|
{runningVersion: "1.8", succeed: true, exp: d},
|
|
{runningVersion: "1.9", succeed: true, exp: d},
|
|
{runningVersion: "1.10", succeed: true, exp: d},
|
|
{runningVersion: "1.1", succeed: false},
|
|
{specifiedVersion: "1.8", succeed: true, exp: d},
|
|
{specifiedVersion: "1.9", succeed: false},
|
|
{specifiedVersion: "1.10", succeed: false},
|
|
}
|
|
|
|
for _, c := range cases {
|
|
t.Run(c.specifiedVersion+"-"+c.runningVersion, func(t *testing.T) {
|
|
path, err := getConfigFilePath(c.specifiedVersion, c.runningVersion, "/master.yaml")
|
|
if err != nil && c.succeed {
|
|
t.Fatalf("Error %v", err)
|
|
}
|
|
if path != c.exp {
|
|
t.Fatalf("Got %s expected %s", path, c.exp)
|
|
}
|
|
})
|
|
}
|
|
}
|