| /* |
| 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 pkiutil |
| |
| import ( |
| "crypto/rand" |
| "crypto/rsa" |
| "crypto/x509" |
| "io/ioutil" |
| "net" |
| "os" |
| "testing" |
| |
| certutil "k8s.io/client-go/util/cert" |
| kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm" |
| ) |
| |
| // certificateRequest is an x509 certificate request in PEM encoded format |
| // openssl req -new -key rsa2048.pem -sha256 -nodes -out x509certrequest.pem -subj "/C=US/CN=not-valid" |
| const certificateRequest = `-----BEGIN CERTIFICATE REQUEST----- |
| MIICZjCCAU4CAQAwITELMAkGA1UEBhMCVVMxEjAQBgNVBAMMCW5vdC12YWxpZDCC |
| ASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMdoBxV0SbSS+7XrgVDF/P4x |
| tqyun+DLxeRF5265ZOFRJDXCJgYH7wKlxlkEaHZQhnNmnqFiy96MHSKaiQmlkEm4 |
| EhlqTf38yEWx+t98A0CDbHsIPZ0/+MPCjb2kf+OfBXJJl908io0grs02jxN9lceL |
| RFrKT6vaB+6i7LxbPQcOmjF7OUqWS6S2qSpShw2GY+mJz4HM7OFb9RcN4izh+GF6 |
| 7hajYgt7pAFyWF1ua/H98Ysn4FVgIYk30rHCNBkQpJnna7EyGYuj08VuFa088W9g |
| c/DCpL+VgBDwTel9tfeMxRAoLIPF9iJ8Ftr7dsRZ/Y/SnxfUJo2ed8y7dgIiLuEC |
| AwEAAaAAMA0GCSqGSIb3DQEBCwUAA4IBAQCOjPB/4LKa2G7LarMMLAeNqvWF9SIG |
| y2VGQoTn9D5blXMvnfzWSYgU6nBzf/E/32q26OwiCriuOPXfxM/cxEMOJ62u7b50 |
| OR52JFvQdONsCZaLgylGWppl0YeqylbTosHjsWJNlp+zjXcQHjCQ9OoLgfmrwYyD |
| 2MsYJR4p7JZ2ZN8FF1hgMUrDzypZ0NSBKAiQMU9TFhxgyk75RNDtmX+2K35zqLyr |
| 0otimyYwPCGPD2GHwNfvu1oP0A+/cT+rCPz6AlXhWEbz2JkLo6/muRfRl0QSRgHE |
| Q3+eWlA1YdqEBwvp3NEQI9BtMnzxJVWA5dvYluMNllsV/q8s2IEEAFG9 |
| -----END CERTIFICATE REQUEST-----` |
| |
| func TestNewCertificateAuthority(t *testing.T) { |
| cert, key, err := NewCertificateAuthority(&certutil.Config{CommonName: "kubernetes"}) |
| |
| if cert == nil { |
| t.Errorf( |
| "failed NewCertificateAuthority, cert == nil", |
| ) |
| } |
| if key == nil { |
| t.Errorf( |
| "failed NewCertificateAuthority, key == nil", |
| ) |
| } |
| if err != nil { |
| t.Errorf( |
| "failed NewCertificateAuthority with an error: %v", |
| err, |
| ) |
| } |
| } |
| |
| func TestNewCertAndKey(t *testing.T) { |
| var tests = []struct { |
| caKeySize int |
| expected bool |
| }{ |
| { |
| // RSA key too small |
| caKeySize: 128, |
| expected: false, |
| }, |
| { |
| // Should succeed |
| caKeySize: 2048, |
| expected: true, |
| }, |
| } |
| |
| for _, rt := range tests { |
| caKey, err := rsa.GenerateKey(rand.Reader, rt.caKeySize) |
| if err != nil { |
| t.Fatalf("Couldn't create rsa Private Key") |
| } |
| caCert := &x509.Certificate{} |
| config := &certutil.Config{ |
| CommonName: "test", |
| Organization: []string{"test"}, |
| Usages: []x509.ExtKeyUsage{x509.ExtKeyUsageClientAuth}, |
| } |
| _, _, actual := NewCertAndKey(caCert, caKey, config) |
| if (actual == nil) != rt.expected { |
| t.Errorf( |
| "failed NewCertAndKey:\n\texpected: %t\n\t actual: %t", |
| rt.expected, |
| (actual == nil), |
| ) |
| } |
| } |
| } |
| |
| func TestHasServerAuth(t *testing.T) { |
| caCert, caKey, _ := NewCertificateAuthority(&certutil.Config{CommonName: "kubernetes"}) |
| |
| var tests = []struct { |
| config certutil.Config |
| expected bool |
| }{ |
| { |
| config: certutil.Config{ |
| CommonName: "test", |
| Usages: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth}, |
| }, |
| expected: true, |
| }, |
| { |
| config: certutil.Config{ |
| CommonName: "test", |
| Usages: []x509.ExtKeyUsage{x509.ExtKeyUsageClientAuth}, |
| }, |
| expected: false, |
| }, |
| } |
| |
| for _, rt := range tests { |
| cert, _, err := NewCertAndKey(caCert, caKey, &rt.config) |
| if err != nil { |
| t.Fatalf("Couldn't create cert: %v", err) |
| } |
| actual := HasServerAuth(cert) |
| if actual != rt.expected { |
| t.Errorf( |
| "failed HasServerAuth:\n\texpected: %t\n\t actual: %t", |
| rt.expected, |
| actual, |
| ) |
| } |
| } |
| } |
| |
| func TestWriteCertAndKey(t *testing.T) { |
| tmpdir, err := ioutil.TempDir("", "") |
| if err != nil { |
| t.Fatalf("Couldn't create tmpdir") |
| } |
| defer os.RemoveAll(tmpdir) |
| |
| caKey, err := rsa.GenerateKey(rand.Reader, 2048) |
| if err != nil { |
| t.Fatalf("Couldn't create rsa Private Key") |
| } |
| caCert := &x509.Certificate{} |
| actual := WriteCertAndKey(tmpdir, "foo", caCert, caKey) |
| if actual != nil { |
| t.Errorf( |
| "failed WriteCertAndKey with an error: %v", |
| actual, |
| ) |
| } |
| } |
| |
| func TestWriteCert(t *testing.T) { |
| tmpdir, err := ioutil.TempDir("", "") |
| if err != nil { |
| t.Fatalf("Couldn't create tmpdir") |
| } |
| defer os.RemoveAll(tmpdir) |
| |
| caCert := &x509.Certificate{} |
| actual := WriteCert(tmpdir, "foo", caCert) |
| if actual != nil { |
| t.Errorf( |
| "failed WriteCertAndKey with an error: %v", |
| actual, |
| ) |
| } |
| } |
| |
| func TestWriteKey(t *testing.T) { |
| tmpdir, err := ioutil.TempDir("", "") |
| if err != nil { |
| t.Fatalf("Couldn't create tmpdir") |
| } |
| defer os.RemoveAll(tmpdir) |
| |
| caKey, err := rsa.GenerateKey(rand.Reader, 2048) |
| if err != nil { |
| t.Fatalf("Couldn't create rsa Private Key") |
| } |
| actual := WriteKey(tmpdir, "foo", caKey) |
| if actual != nil { |
| t.Errorf( |
| "failed WriteCertAndKey with an error: %v", |
| actual, |
| ) |
| } |
| } |
| |
| func TestWritePublicKey(t *testing.T) { |
| tmpdir, err := ioutil.TempDir("", "") |
| if err != nil { |
| t.Fatalf("Couldn't create tmpdir") |
| } |
| defer os.RemoveAll(tmpdir) |
| |
| caKey, err := rsa.GenerateKey(rand.Reader, 2048) |
| if err != nil { |
| t.Fatalf("Couldn't create rsa Private Key") |
| } |
| actual := WritePublicKey(tmpdir, "foo", &caKey.PublicKey) |
| if actual != nil { |
| t.Errorf( |
| "failed WriteCertAndKey with an error: %v", |
| actual, |
| ) |
| } |
| } |
| |
| func TestCertOrKeyExist(t *testing.T) { |
| tmpdir, err := ioutil.TempDir("", "") |
| if err != nil { |
| t.Fatalf("Couldn't create tmpdir") |
| } |
| defer os.RemoveAll(tmpdir) |
| |
| caKey, err := rsa.GenerateKey(rand.Reader, 2048) |
| if err != nil { |
| t.Fatalf("Couldn't create rsa Private Key") |
| } |
| caCert := &x509.Certificate{} |
| actual := WriteCertAndKey(tmpdir, "foo", caCert, caKey) |
| if actual != nil { |
| t.Errorf( |
| "failed WriteCertAndKey with an error: %v", |
| actual, |
| ) |
| } |
| |
| var tests = []struct { |
| path string |
| name string |
| expected bool |
| }{ |
| { |
| path: "", |
| name: "", |
| expected: false, |
| }, |
| { |
| path: tmpdir, |
| name: "foo", |
| expected: true, |
| }, |
| } |
| for _, rt := range tests { |
| actual := CertOrKeyExist(rt.path, rt.name) |
| if actual != rt.expected { |
| t.Errorf( |
| "failed CertOrKeyExist:\n\texpected: %t\n\t actual: %t", |
| rt.expected, |
| actual, |
| ) |
| } |
| } |
| } |
| |
| func TestTryLoadCertAndKeyFromDisk(t *testing.T) { |
| tmpdir, err := ioutil.TempDir("", "") |
| if err != nil { |
| t.Fatalf("Couldn't create tmpdir") |
| } |
| defer os.RemoveAll(tmpdir) |
| |
| caCert, caKey, err := NewCertificateAuthority(&certutil.Config{CommonName: "kubernetes"}) |
| if err != nil { |
| t.Errorf( |
| "failed to create cert and key with an error: %v", |
| err, |
| ) |
| } |
| err = WriteCertAndKey(tmpdir, "foo", caCert, caKey) |
| if err != nil { |
| t.Errorf( |
| "failed to write cert and key with an error: %v", |
| err, |
| ) |
| } |
| |
| var tests = []struct { |
| path string |
| name string |
| expected bool |
| }{ |
| { |
| path: "", |
| name: "", |
| expected: false, |
| }, |
| { |
| path: tmpdir, |
| name: "foo", |
| expected: true, |
| }, |
| } |
| for _, rt := range tests { |
| _, _, actual := TryLoadCertAndKeyFromDisk(rt.path, rt.name) |
| if (actual == nil) != rt.expected { |
| t.Errorf( |
| "failed TryLoadCertAndKeyFromDisk:\n\texpected: %t\n\t actual: %t", |
| rt.expected, |
| (actual == nil), |
| ) |
| } |
| } |
| } |
| |
| func TestTryLoadCertFromDisk(t *testing.T) { |
| tmpdir, err := ioutil.TempDir("", "") |
| if err != nil { |
| t.Fatalf("Couldn't create tmpdir") |
| } |
| defer os.RemoveAll(tmpdir) |
| |
| caCert, _, err := NewCertificateAuthority(&certutil.Config{CommonName: "kubernetes"}) |
| if err != nil { |
| t.Errorf( |
| "failed to create cert and key with an error: %v", |
| err, |
| ) |
| } |
| err = WriteCert(tmpdir, "foo", caCert) |
| if err != nil { |
| t.Errorf( |
| "failed to write cert and key with an error: %v", |
| err, |
| ) |
| } |
| |
| var tests = []struct { |
| path string |
| name string |
| expected bool |
| }{ |
| { |
| path: "", |
| name: "", |
| expected: false, |
| }, |
| { |
| path: tmpdir, |
| name: "foo", |
| expected: true, |
| }, |
| } |
| for _, rt := range tests { |
| _, actual := TryLoadCertFromDisk(rt.path, rt.name) |
| if (actual == nil) != rt.expected { |
| t.Errorf( |
| "failed TryLoadCertAndKeyFromDisk:\n\texpected: %t\n\t actual: %t", |
| rt.expected, |
| (actual == nil), |
| ) |
| } |
| } |
| } |
| |
| func TestTryLoadKeyFromDisk(t *testing.T) { |
| tmpdir, err := ioutil.TempDir("", "") |
| if err != nil { |
| t.Fatalf("Couldn't create tmpdir") |
| } |
| defer os.RemoveAll(tmpdir) |
| |
| _, caKey, err := NewCertificateAuthority(&certutil.Config{CommonName: "kubernetes"}) |
| if err != nil { |
| t.Errorf( |
| "failed to create cert and key with an error: %v", |
| err, |
| ) |
| } |
| err = WriteKey(tmpdir, "foo", caKey) |
| if err != nil { |
| t.Errorf( |
| "failed to write cert and key with an error: %v", |
| err, |
| ) |
| } |
| |
| var tests = []struct { |
| path string |
| name string |
| expected bool |
| }{ |
| { |
| path: "", |
| name: "", |
| expected: false, |
| }, |
| { |
| path: tmpdir, |
| name: "foo", |
| expected: true, |
| }, |
| } |
| for _, rt := range tests { |
| _, actual := TryLoadKeyFromDisk(rt.path, rt.name) |
| if (actual == nil) != rt.expected { |
| t.Errorf( |
| "failed TryLoadCertAndKeyFromDisk:\n\texpected: %t\n\t actual: %t", |
| rt.expected, |
| (actual == nil), |
| ) |
| } |
| } |
| } |
| |
| func TestPathsForCertAndKey(t *testing.T) { |
| crtPath, keyPath := PathsForCertAndKey("/foo", "bar") |
| if crtPath != "/foo/bar.crt" { |
| t.Errorf("unexpected certificate path: %s", crtPath) |
| } |
| if keyPath != "/foo/bar.key" { |
| t.Errorf("unexpected key path: %s", keyPath) |
| } |
| } |
| |
| func TestPathForCert(t *testing.T) { |
| crtPath := pathForCert("/foo", "bar") |
| if crtPath != "/foo/bar.crt" { |
| t.Errorf("unexpected certificate path: %s", crtPath) |
| } |
| } |
| |
| func TestPathForKey(t *testing.T) { |
| keyPath := pathForKey("/foo", "bar") |
| if keyPath != "/foo/bar.key" { |
| t.Errorf("unexpected certificate path: %s", keyPath) |
| } |
| } |
| |
| func TestPathForPublicKey(t *testing.T) { |
| pubPath := pathForPublicKey("/foo", "bar") |
| if pubPath != "/foo/bar.pub" { |
| t.Errorf("unexpected certificate path: %s", pubPath) |
| } |
| } |
| |
| func TestPathForCSR(t *testing.T) { |
| csrPath := pathForCSR("/foo", "bar") |
| if csrPath != "/foo/bar.csr" { |
| t.Errorf("unexpected certificate path: %s", csrPath) |
| } |
| } |
| |
| func TestGetAPIServerAltNames(t *testing.T) { |
| |
| var tests = []struct { |
| name string |
| cfg *kubeadmapi.InitConfiguration |
| expectedDNSNames []string |
| expectedIPAddresses []string |
| }{ |
| { |
| name: "", |
| cfg: &kubeadmapi.InitConfiguration{ |
| LocalAPIEndpoint: kubeadmapi.APIEndpoint{AdvertiseAddress: "1.2.3.4"}, |
| ClusterConfiguration: kubeadmapi.ClusterConfiguration{ |
| ControlPlaneEndpoint: "api.k8s.io:6443", |
| Networking: kubeadmapi.Networking{ServiceSubnet: "10.96.0.0/12", DNSDomain: "cluster.local"}, |
| APIServer: kubeadmapi.APIServer{ |
| CertSANs: []string{"10.1.245.94", "10.1.245.95", "1.2.3.L", "invalid,commas,in,DNS"}, |
| }, |
| }, |
| NodeRegistration: kubeadmapi.NodeRegistrationOptions{Name: "valid-hostname"}, |
| }, |
| expectedDNSNames: []string{"valid-hostname", "kubernetes", "kubernetes.default", "kubernetes.default.svc", "kubernetes.default.svc.cluster.local", "api.k8s.io"}, |
| expectedIPAddresses: []string{"10.96.0.1", "1.2.3.4", "10.1.245.94", "10.1.245.95"}, |
| }, |
| { |
| name: "ControlPlaneEndpoint IP", |
| cfg: &kubeadmapi.InitConfiguration{ |
| LocalAPIEndpoint: kubeadmapi.APIEndpoint{AdvertiseAddress: "1.2.3.4"}, |
| ClusterConfiguration: kubeadmapi.ClusterConfiguration{ |
| ControlPlaneEndpoint: "4.5.6.7:6443", |
| Networking: kubeadmapi.Networking{ServiceSubnet: "10.96.0.0/12", DNSDomain: "cluster.local"}, |
| APIServer: kubeadmapi.APIServer{ |
| CertSANs: []string{"10.1.245.94", "10.1.245.95", "1.2.3.L", "invalid,commas,in,DNS"}, |
| }, |
| }, |
| NodeRegistration: kubeadmapi.NodeRegistrationOptions{Name: "valid-hostname"}, |
| }, |
| expectedDNSNames: []string{"valid-hostname", "kubernetes", "kubernetes.default", "kubernetes.default.svc", "kubernetes.default.svc.cluster.local"}, |
| expectedIPAddresses: []string{"10.96.0.1", "1.2.3.4", "10.1.245.94", "10.1.245.95", "4.5.6.7"}, |
| }, |
| } |
| |
| for _, rt := range tests { |
| altNames, err := GetAPIServerAltNames(rt.cfg) |
| if err != nil { |
| t.Fatalf("failed calling GetAPIServerAltNames: %s: %v", rt.name, err) |
| } |
| |
| for _, DNSName := range rt.expectedDNSNames { |
| found := false |
| for _, val := range altNames.DNSNames { |
| if val == DNSName { |
| found = true |
| break |
| } |
| } |
| |
| if !found { |
| t.Errorf("%s: altNames does not contain DNSName %s but %v", rt.name, DNSName, altNames.DNSNames) |
| } |
| } |
| |
| for _, IPAddress := range rt.expectedIPAddresses { |
| found := false |
| for _, val := range altNames.IPs { |
| if val.Equal(net.ParseIP(IPAddress)) { |
| found = true |
| break |
| } |
| } |
| |
| if !found { |
| t.Errorf("%s: altNames does not contain IPAddress %s but %v", rt.name, IPAddress, altNames.IPs) |
| } |
| } |
| } |
| } |
| |
| func TestGetEtcdAltNames(t *testing.T) { |
| proxy := "user-etcd-proxy" |
| proxyIP := "10.10.10.100" |
| cfg := &kubeadmapi.InitConfiguration{ |
| LocalAPIEndpoint: kubeadmapi.APIEndpoint{ |
| AdvertiseAddress: "1.2.3.4", |
| }, |
| NodeRegistration: kubeadmapi.NodeRegistrationOptions{ |
| Name: "myNode", |
| }, |
| ClusterConfiguration: kubeadmapi.ClusterConfiguration{ |
| Etcd: kubeadmapi.Etcd{ |
| Local: &kubeadmapi.LocalEtcd{ |
| ServerCertSANs: []string{ |
| proxy, |
| proxyIP, |
| "1.2.3.L", |
| "invalid,commas,in,DNS", |
| }, |
| }, |
| }, |
| }, |
| } |
| |
| altNames, err := GetEtcdAltNames(cfg) |
| if err != nil { |
| t.Fatalf("failed calling GetEtcdAltNames: %v", err) |
| } |
| |
| expectedDNSNames := []string{"myNode", "localhost", proxy} |
| for _, DNSName := range expectedDNSNames { |
| found := false |
| for _, val := range altNames.DNSNames { |
| if val == DNSName { |
| found = true |
| break |
| } |
| } |
| |
| if !found { |
| t.Errorf("altNames does not contain DNSName %s", DNSName) |
| } |
| } |
| |
| expectedIPAddresses := []string{"1.2.3.4", "127.0.0.1", net.IPv6loopback.String(), proxyIP} |
| for _, IPAddress := range expectedIPAddresses { |
| found := false |
| for _, val := range altNames.IPs { |
| if val.Equal(net.ParseIP(IPAddress)) { |
| found = true |
| break |
| } |
| } |
| |
| if !found { |
| t.Errorf("altNames does not contain IPAddress %s", IPAddress) |
| } |
| } |
| } |
| |
| func TestGetEtcdPeerAltNames(t *testing.T) { |
| hostname := "valid-hostname" |
| proxy := "user-etcd-proxy" |
| proxyIP := "10.10.10.100" |
| advertiseIP := "1.2.3.4" |
| cfg := &kubeadmapi.InitConfiguration{ |
| LocalAPIEndpoint: kubeadmapi.APIEndpoint{AdvertiseAddress: advertiseIP}, |
| ClusterConfiguration: kubeadmapi.ClusterConfiguration{ |
| Etcd: kubeadmapi.Etcd{ |
| Local: &kubeadmapi.LocalEtcd{ |
| PeerCertSANs: []string{ |
| proxy, |
| proxyIP, |
| "1.2.3.L", |
| "invalid,commas,in,DNS", |
| }, |
| }, |
| }, |
| }, |
| NodeRegistration: kubeadmapi.NodeRegistrationOptions{Name: hostname}, |
| } |
| |
| altNames, err := GetEtcdPeerAltNames(cfg) |
| if err != nil { |
| t.Fatalf("failed calling GetEtcdPeerAltNames: %v", err) |
| } |
| |
| expectedDNSNames := []string{hostname, proxy} |
| for _, DNSName := range expectedDNSNames { |
| found := false |
| for _, val := range altNames.DNSNames { |
| if val == DNSName { |
| found = true |
| break |
| } |
| } |
| |
| if !found { |
| t.Errorf("altNames does not contain DNSName %s", DNSName) |
| } |
| } |
| |
| expectedIPAddresses := []string{advertiseIP, proxyIP} |
| for _, IPAddress := range expectedIPAddresses { |
| found := false |
| for _, val := range altNames.IPs { |
| if val.Equal(net.ParseIP(IPAddress)) { |
| found = true |
| break |
| } |
| } |
| |
| if !found { |
| t.Errorf("altNames does not contain IPAddress %s", IPAddress) |
| } |
| } |
| } |
