Merge pull request #913 from delamart/master

Vault Kubernetes Auth

cas/vaultcas/auth/approle/approle.go

@@ -0,0 +1,67 @@
+package approle
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+
+	"github.com/hashicorp/vault/api/auth/approle"
+)
+
+// AuthOptions defines the configuration options added using the
+// VaultOptions.AuthOptions field when AuthType is approle
+type AuthOptions struct {
+	RoleID          string `json:"roleID,omitempty"`
+	SecretID        string `json:"secretID,omitempty"`
+	SecretIDFile    string `json:"secretIDFile,omitempty"`
+	SecretIDEnv     string `json:"secretIDEnv,omitempty"`
+	IsWrappingToken bool   `json:"isWrappingToken,omitempty"`
+}
+
+func NewApproleAuthMethod(mountPath string, options json.RawMessage) (*approle.AppRoleAuth, error) {
+	var opts *AuthOptions
+
+	err := json.Unmarshal(options, &opts)
+	if err != nil {
+		return nil, fmt.Errorf("error decoding AppRole auth options: %w", err)
+	}
+
+	var approleAuth *approle.AppRoleAuth
+
+	var loginOptions []approle.LoginOption
+	if mountPath != "" {
+		loginOptions = append(loginOptions, approle.WithMountPath(mountPath))
+	}
+	if opts.IsWrappingToken {
+		loginOptions = append(loginOptions, approle.WithWrappingToken())
+	}
+
+	if opts.RoleID == "" {
+		return nil, errors.New("you must set roleID")
+	}
+
+	var sid approle.SecretID
+	switch {
+	case opts.SecretID != "" && opts.SecretIDFile == "" && opts.SecretIDEnv == "":
+		sid = approle.SecretID{
+			FromString: opts.SecretID,
+		}
+	case opts.SecretIDFile != "" && opts.SecretID == "" && opts.SecretIDEnv == "":
+		sid = approle.SecretID{
+			FromFile: opts.SecretIDFile,
+		}
+	case opts.SecretIDEnv != "" && opts.SecretIDFile == "" && opts.SecretID == "":
+		sid = approle.SecretID{
+			FromEnv: opts.SecretIDEnv,
+		}
+	default:
+		return nil, errors.New("you must set one of secretID, secretIDFile or secretIDEnv")
+	}
+
+	approleAuth, err = approle.NewAppRoleAuth(opts.RoleID, &sid, loginOptions...)
+	if err != nil {
+		return nil, fmt.Errorf("unable to initialize Kubernetes auth method: %w", err)
+	}
+
+	return approleAuth, nil
+}

cas/vaultcas/auth/approle/approle_test.go

@@ -0,0 +1,195 @@
+package approle
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"testing"
+
+	vault "github.com/hashicorp/vault/api"
+)
+
+func testCAHelper(t *testing.T) (*url.URL, *vault.Client) {
+	t.Helper()
+
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch {
+		case r.RequestURI == "/v1/auth/approle/login":
+			w.WriteHeader(http.StatusOK)
+			fmt.Fprintf(w, `{
+				  "auth": {
+					"client_token": "hvs.0000"
+				  }
+				}`)
+		case r.RequestURI == "/v1/auth/custom-approle/login":
+			w.WriteHeader(http.StatusOK)
+			fmt.Fprintf(w, `{
+				  "auth": {
+					"client_token": "hvs.9999"
+				  }
+				}`)
+		default:
+			w.WriteHeader(http.StatusNotFound)
+			fmt.Fprintf(w, `{"error":"not found"}`)
+		}
+	}))
+	t.Cleanup(func() {
+		srv.Close()
+	})
+	u, err := url.Parse(srv.URL)
+	if err != nil {
+		srv.Close()
+		t.Fatal(err)
+	}
+
+	config := vault.DefaultConfig()
+	config.Address = srv.URL
+
+	client, err := vault.NewClient(config)
+	if err != nil {
+		srv.Close()
+		t.Fatal(err)
+	}
+
+	return u, client
+}
+
+func TestApprole_LoginMountPaths(t *testing.T) {
+	caURL, _ := testCAHelper(t)
+
+	config := vault.DefaultConfig()
+	config.Address = caURL.String()
+	client, _ := vault.NewClient(config)
+
+	tests := []struct {
+		name      string
+		mountPath string
+		token     string
+	}{
+		{
+			name:      "ok default mount path",
+			mountPath: "",
+			token:     "hvs.0000",
+		},
+		{
+			name:      "ok explicit mount path",
+			mountPath: "approle",
+			token:     "hvs.0000",
+		},
+		{
+			name:      "ok custom mount path",
+			mountPath: "custom-approle",
+			token:     "hvs.9999",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			method, err := NewApproleAuthMethod(tt.mountPath, json.RawMessage(`{"RoleID":"roleID","SecretID":"secretID","IsWrappingToken":false}`))
+			if err != nil {
+				t.Errorf("NewApproleAuthMethod() error = %v", err)
+				return
+			}
+
+			secret, err := client.Auth().Login(context.Background(), method)
+			if err != nil {
+				t.Errorf("Login() error = %v", err)
+				return
+			}
+
+			token, _ := secret.TokenID()
+			if token != tt.token {
+				t.Errorf("Token error got %v, expected %v", token, tt.token)
+				return
+			}
+		})
+	}
+}
+
+func TestApprole_NewApproleAuthMethod(t *testing.T) {
+	tests := []struct {
+		name      string
+		mountPath string
+		raw       string
+		wantErr   bool
+	}{
+		{
+			"ok secret-id string",
+			"",
+			`{"RoleID": "0000-0000-0000-0000", "SecretID": "0000-0000-0000-0000"}`,
+			false,
+		},
+		{
+			"ok secret-id string and wrapped",
+			"",
+			`{"RoleID": "0000-0000-0000-0000", "SecretID": "0000-0000-0000-0000", "isWrappedToken": true}`,
+			false,
+		},
+		{
+			"ok secret-id string and wrapped with custom mountPath",
+			"approle2",
+			`{"RoleID": "0000-0000-0000-0000", "SecretID": "0000-0000-0000-0000", "isWrappedToken": true}`,
+			false,
+		},
+		{
+			"ok secret-id file",
+			"",
+			`{"RoleID": "0000-0000-0000-0000", "SecretIDFile": "./secret-id"}`,
+			false,
+		},
+		{
+			"ok secret-id env",
+			"",
+			`{"RoleID": "0000-0000-0000-0000", "SecretIDEnv": "VAULT_APPROLE_SECRETID"}`,
+			false,
+		},
+		{
+			"fail mandatory role-id",
+			"",
+			`{}`,
+			true,
+		},
+		{
+			"fail mandatory secret-id any",
+			"",
+			`{"RoleID": "0000-0000-0000-0000"}`,
+			true,
+		},
+		{
+			"fail multiple secret-id types id and env",
+			"",
+			`{"RoleID": "0000-0000-0000-0000", "SecretID": "0000-0000-0000-0000", "SecretIDEnv": "VAULT_APPROLE_SECRETID"}`,
+			true,
+		},
+		{
+			"fail multiple secret-id types id and file",
+			"",
+			`{"RoleID": "0000-0000-0000-0000", "SecretID": "0000-0000-0000-0000", "SecretIDFile": "./secret-id"}`,
+			true,
+		},
+		{
+			"fail multiple secret-id types env and file",
+			"",
+			`{"RoleID": "0000-0000-0000-0000", "SecretIDFile": "./secret-id", "SecretIDEnv": "VAULT_APPROLE_SECRETID"}`,
+			true,
+		},
+		{
+			"fail multiple secret-id types all",
+			"",
+			`{"RoleID": "0000-0000-0000-0000", "SecretID": "0000-0000-0000-0000", "SecretIDFile": "./secret-id", "SecretIDEnv": "VAULT_APPROLE_SECRETID"}`,
+			true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			_, err := NewApproleAuthMethod(tt.mountPath, json.RawMessage(tt.raw))
+			if (err != nil) != tt.wantErr {
+				t.Errorf("Approle.NewApproleAuthMethod() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+		})
+	}
+}

cas/vaultcas/auth/kubernetes/kubernetes.go

@@ -0,0 +1,49 @@
+package kubernetes
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+
+	"github.com/hashicorp/vault/api/auth/kubernetes"
+)
+
+// AuthOptions defines the configuration options added using the
+// VaultOptions.AuthOptions field when AuthType is kubernetes
+type AuthOptions struct {
+	Role      string `json:"role,omitempty"`
+	TokenPath string `json:"tokenPath,omitempty"`
+}
+
+func NewKubernetesAuthMethod(mountPath string, options json.RawMessage) (*kubernetes.KubernetesAuth, error) {
+	var opts *AuthOptions
+
+	err := json.Unmarshal(options, &opts)
+	if err != nil {
+		return nil, fmt.Errorf("error decoding Kubernetes auth options: %w", err)
+	}
+
+	var kubernetesAuth *kubernetes.KubernetesAuth
+
+	var loginOptions []kubernetes.LoginOption
+	if mountPath != "" {
+		loginOptions = append(loginOptions, kubernetes.WithMountPath(mountPath))
+	}
+	if opts.TokenPath != "" {
+		loginOptions = append(loginOptions, kubernetes.WithServiceAccountTokenPath(opts.TokenPath))
+	}
+
+	if opts.Role == "" {
+		return nil, errors.New("you must set role")
+	}
+
+	kubernetesAuth, err = kubernetes.NewKubernetesAuth(
+		opts.Role,
+		loginOptions...,
+	)
+	if err != nil {
+		return nil, fmt.Errorf("unable to initialize Kubernetes auth method: %w", err)
+	}
+
+	return kubernetesAuth, nil
+}

cas/vaultcas/auth/kubernetes/kubernetes_test.go

@@ -0,0 +1,149 @@
+package kubernetes
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"path"
+	"path/filepath"
+	"runtime"
+	"testing"
+
+	vault "github.com/hashicorp/vault/api"
+)
+
+func testCAHelper(t *testing.T) (*url.URL, *vault.Client) {
+	t.Helper()
+
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch {
+		case r.RequestURI == "/v1/auth/kubernetes/login":
+			w.WriteHeader(http.StatusOK)
+			fmt.Fprintf(w, `{
+				  "auth": {
+					"client_token": "hvs.0000"
+				  }
+				}`)
+		case r.RequestURI == "/v1/auth/custom-kubernetes/login":
+			w.WriteHeader(http.StatusOK)
+			fmt.Fprintf(w, `{
+				  "auth": {
+					"client_token": "hvs.9999"
+				  }
+				}`)
+		default:
+			w.WriteHeader(http.StatusNotFound)
+			fmt.Fprintf(w, `{"error":"not found"}`)
+		}
+	}))
+	t.Cleanup(func() {
+		srv.Close()
+	})
+	u, err := url.Parse(srv.URL)
+	if err != nil {
+		srv.Close()
+		t.Fatal(err)
+	}
+
+	config := vault.DefaultConfig()
+	config.Address = srv.URL
+
+	client, err := vault.NewClient(config)
+	if err != nil {
+		srv.Close()
+		t.Fatal(err)
+	}
+
+	return u, client
+}
+
+func TestApprole_LoginMountPaths(t *testing.T) {
+	caURL, _ := testCAHelper(t)
+	_, filename, _, _ := runtime.Caller(0)
+	tokenPath := filepath.Join(path.Dir(filename), "token")
+
+	config := vault.DefaultConfig()
+	config.Address = caURL.String()
+	client, _ := vault.NewClient(config)
+
+	tests := []struct {
+		name      string
+		mountPath string
+		token     string
+	}{
+		{
+			name:      "ok default mount path",
+			mountPath: "",
+			token:     "hvs.0000",
+		},
+		{
+			name:      "ok explicit mount path",
+			mountPath: "kubernetes",
+			token:     "hvs.0000",
+		},
+		{
+			name:      "ok custom mount path",
+			mountPath: "custom-kubernetes",
+			token:     "hvs.9999",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			method, err := NewKubernetesAuthMethod(tt.mountPath, json.RawMessage(`{"role": "SomeRoleName", "tokenPath": "`+tokenPath+`"}`))
+			if err != nil {
+				t.Errorf("NewApproleAuthMethod() error = %v", err)
+				return
+			}
+
+			secret, err := client.Auth().Login(context.Background(), method)
+			if err != nil {
+				t.Errorf("Login() error = %v", err)
+				return
+			}
+
+			token, _ := secret.TokenID()
+			if token != tt.token {
+				t.Errorf("Token error got %v, expected %v", token, tt.token)
+				return
+			}
+		})
+	}
+}
+
+func TestApprole_NewApproleAuthMethod(t *testing.T) {
+	_, filename, _, _ := runtime.Caller(0)
+	tokenPath := filepath.Join(path.Dir(filename), "token")
+
+	tests := []struct {
+		name      string
+		mountPath string
+		raw       string
+		wantErr   bool
+	}{
+		{
+			"ok secret-id string",
+			"",
+			`{"role": "SomeRoleName", "tokenPath": "` + tokenPath + `"}`,
+			false,
+		},
+		{
+			"fail mandatory role",
+			"",
+			`{}`,
+			true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			_, err := NewKubernetesAuthMethod(tt.mountPath, json.RawMessage(tt.raw))
+			if (err != nil) != tt.wantErr {
+				t.Errorf("Kubernetes.NewKubernetesAuthMethod() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+		})
+	}
+}

cas/vaultcas/auth/kubernetes/token

@@ -0,0 +1 @@
+token

cas/vaultcas/vaultcas.go

@@ -15,9 +15,10 @@ import (
 	"time"
 
 	"github.com/smallstep/certificates/cas/apiv1"
+	"github.com/smallstep/certificates/cas/vaultcas/auth/approle"
+	"github.com/smallstep/certificates/cas/vaultcas/auth/kubernetes"
 
 	vault "github.com/hashicorp/vault/api"
-	auth "github.com/hashicorp/vault/api/auth/approle"
 )
 
 func init() {
@@ -29,15 +30,14 @@ func init() {
 // VaultOptions defines the configuration options added using the
 // apiv1.Options.Config field.
 type VaultOptions struct {
-	PKI             string        `json:"pki,omitempty"`
-	PKIRoleDefault  string        `json:"pkiRoleDefault,omitempty"`
-	PKIRoleRSA      string        `json:"pkiRoleRSA,omitempty"`
-	PKIRoleEC       string        `json:"pkiRoleEC,omitempty"`
-	PKIRoleEd25519  string        `json:"pkiRoleEd25519,omitempty"`
-	RoleID          string        `json:"roleID,omitempty"`
-	SecretID        auth.SecretID `json:"secretID,omitempty"`
-	AppRole         string        `json:"appRole,omitempty"`
-	IsWrappingToken bool          `json:"isWrappingToken,omitempty"`
+	PKIMountPath   string          `json:"pkiMountPath,omitempty"`
+	PKIRoleDefault string          `json:"pkiRoleDefault,omitempty"`
+	PKIRoleRSA     string          `json:"pkiRoleRSA,omitempty"`
+	PKIRoleEC      string          `json:"pkiRoleEC,omitempty"`
+	PKIRoleEd25519 string          `json:"pkiRoleEd25519,omitempty"`
+	AuthType       string          `json:"authType,omitempty"`
+	AuthMountPath  string          `json:"authMountPath,omitempty"`
+	AuthOptions    json.RawMessage `json:"authOptions,omitempty"`
 }
 
 // VaultCAS implements a Certificate Authority Service using Hashicorp Vault.
@@ -77,28 +77,22 @@ func New(ctx context.Context, opts apiv1.Options) (*VaultCAS, error) {
 		return nil, fmt.Errorf("unable to initialize vault client: %w", err)
 	}
 
-	var appRoleAuth *auth.AppRoleAuth
-	if vc.IsWrappingToken {
-		appRoleAuth, err = auth.NewAppRoleAuth(
-			vc.RoleID,
-			&vc.SecretID,
-			auth.WithWrappingToken(),
-			auth.WithMountPath(vc.AppRole),
-		)
-	} else {
-		appRoleAuth, err = auth.NewAppRoleAuth(
-			vc.RoleID,
-			&vc.SecretID,
-			auth.WithMountPath(vc.AppRole),
-		)
+	var method vault.AuthMethod
+	switch vc.AuthType {
+	case "kubernetes":
+		method, err = kubernetes.NewKubernetesAuthMethod(vc.AuthMountPath, vc.AuthOptions)
+	case "approle":
+		method, err = approle.NewApproleAuthMethod(vc.AuthMountPath, vc.AuthOptions)
+	default:
+		return nil, fmt.Errorf("unknown auth type: %s, only 'kubernetes' and 'approle' currently supported", vc.AuthType)
 	}
 	if err != nil {
-		return nil, fmt.Errorf("unable to initialize AppRole auth method: %w", err)
+		return nil, fmt.Errorf("unable to configure %s auth method: %w", vc.AuthType, err)
 	}
 
-	authInfo, err := client.Auth().Login(ctx, appRoleAuth)
+	authInfo, err := client.Auth().Login(ctx, method)
 	if err != nil {
-		return nil, fmt.Errorf("unable to login to AppRole auth method: %w", err)
+		return nil, fmt.Errorf("unable to login to %s auth method: %w", vc.AuthType, err)
 	}
 	if authInfo == nil {
 		return nil, errors.New("no auth info was returned after login")
@@ -134,7 +128,7 @@ func (v *VaultCAS) CreateCertificate(req *apiv1.CreateCertificateRequest) (*apiv
 // GetCertificateAuthority returns the root certificate of the certificate
 // authority using the configured fingerprint.
 func (v *VaultCAS) GetCertificateAuthority(req *apiv1.GetCertificateAuthorityRequest) (*apiv1.GetCertificateAuthorityResponse, error) {
-	secret, err := v.client.Logical().Read(v.config.PKI + "/cert/ca_chain")
+	secret, err := v.client.Logical().Read(v.config.PKIMountPath + "/cert/ca_chain")
 	if err != nil {
 		return nil, fmt.Errorf("error reading ca chain: %w", err)
 	}
@@ -190,7 +184,7 @@ func (v *VaultCAS) RevokeCertificate(req *apiv1.RevokeCertificateRequest) (*apiv
 	vaultReq := map[string]interface{}{
 		"serial_number": formatSerialNumber(sn),
 	}
-	_, err := v.client.Logical().Write(v.config.PKI+"/revoke/", vaultReq)
+	_, err := v.client.Logical().Write(v.config.PKIMountPath+"/revoke/", vaultReq)
 	if err != nil {
 		return nil, fmt.Errorf("error revoking certificate: %w", err)
 	}
@@ -224,7 +218,7 @@ func (v *VaultCAS) createCertificate(cr *x509.CertificateRequest, lifetime time.
 		"ttl":    lifetime.Seconds(),
 	}
 
-	secret, err := v.client.Logical().Write(v.config.PKI+"/sign/"+vaultPKIRole, vaultReq)
+	secret, err := v.client.Logical().Write(v.config.PKIMountPath+"/sign/"+vaultPKIRole, vaultReq)
 	if err != nil {
 		return nil, nil, fmt.Errorf("error signing certificate: %w", err)
 	}
@@ -247,21 +241,17 @@ func (v *VaultCAS) createCertificate(cr *x509.CertificateRequest, lifetime time.
 }
 
 func loadOptions(config json.RawMessage) (*VaultOptions, error) {
-	var vc *VaultOptions
+	// setup default values
+	vc := VaultOptions{
+		PKIMountPath:   "pki",
+		PKIRoleDefault: "default",
+	}
 
 	err := json.Unmarshal(config, &vc)
 	if err != nil {
 		return nil, fmt.Errorf("error decoding vaultCAS config: %w", err)
 	}
 
-	if vc.PKI == "" {
-		vc.PKI = "pki" // use default pki vault name
-	}
-
-	if vc.PKIRoleDefault == "" {
-		vc.PKIRoleDefault = "default" // use default pki role name
-	}
-
 	if vc.PKIRoleRSA == "" {
 		vc.PKIRoleRSA = vc.PKIRoleDefault
 	}
@@ -272,23 +262,7 @@ func loadOptions(config json.RawMessage) (*VaultOptions, error) {
 		vc.PKIRoleEd25519 = vc.PKIRoleDefault
 	}
 
-	if vc.RoleID == "" {
-		return nil, errors.New("vaultCAS config options must define `roleID`")
-	}
-
-	if vc.SecretID.FromEnv == "" && vc.SecretID.FromFile == "" && vc.SecretID.FromString == "" {
-		return nil, errors.New("vaultCAS config options must define `secretID` object with one of `FromEnv`, `FromFile` or `FromString`")
-	}
-
-	if vc.PKI == "" {
-		vc.PKI = "pki" // use default pki vault name
-	}
-
-	if vc.AppRole == "" {
-		vc.AppRole = "auth/approle"
-	}
-
-	return vc, nil
+	return &vc, nil
 }
 
 func parseCertificates(pemCert string) []*x509.Certificate {

cas/vaultcas/vaultcas_test.go

@@ -14,7 +14,6 @@ import (
 	"time"
 
 	vault "github.com/hashicorp/vault/api"
-	auth "github.com/hashicorp/vault/api/auth/approle"
 	"github.com/smallstep/certificates/cas/apiv1"
 	"go.step.sm/crypto/pemutil"
 )
@@ -99,7 +98,7 @@ func testCAHelper(t *testing.T) (*url.URL, *vault.Client) {
 
 	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		switch {
-		case r.RequestURI == "/v1/auth/auth/approle/login":
+		case r.RequestURI == "/v1/auth/approle/login":
 			w.WriteHeader(http.StatusOK)
 			fmt.Fprintf(w, `{
 				  "auth": {
@@ -183,11 +182,8 @@ func TestNew_register(t *testing.T) {
 		CertificateAuthority:            caURL.String(),
 		CertificateAuthorityFingerprint: testRootFingerprint,
 		Config: json.RawMessage(`{
-			"PKI": "pki",
-			"PKIRoleDefault": "pki-role",
-			"RoleID": "roleID",
-			"SecretID": {"FromString": "secretID"},
-			"IsWrappingToken": false
+			"AuthType": "approle",
+			"AuthOptions": {"RoleID":"roleID","SecretID":"secretID","IsWrappingToken":false}
 		}`),
 	})
 
@@ -201,15 +197,11 @@ func TestVaultCAS_CreateCertificate(t *testing.T) {
 	_, client := testCAHelper(t)
 
 	options := VaultOptions{
-		PKI:             "pki",
-		PKIRoleDefault:  "role",
-		PKIRoleRSA:      "rsa",
-		PKIRoleEC:       "ec",
-		PKIRoleEd25519:  "ed25519",
-		RoleID:          "roleID",
-		SecretID:        auth.SecretID{FromString: "secretID"},
-		AppRole:         "approle",
-		IsWrappingToken: false,
+		PKIMountPath:   "pki",
+		PKIRoleDefault: "role",
+		PKIRoleRSA:     "rsa",
+		PKIRoleEC:      "ec",
+		PKIRoleEd25519: "ed25519",
 	}
 
 	type fields struct {
@@ -291,7 +283,7 @@ func TestVaultCAS_GetCertificateAuthority(t *testing.T) {
 	}
 
 	options := VaultOptions{
-		PKI: "pki",
+		PKIMountPath: "pki",
 	}
 
 	rootCert := parseCertificates(testRootCertificate)[0]
@@ -335,15 +327,11 @@ func TestVaultCAS_RevokeCertificate(t *testing.T) {
 	_, client := testCAHelper(t)
 
 	options := VaultOptions{
-		PKI:             "pki",
-		PKIRoleDefault:  "role",
-		PKIRoleRSA:      "rsa",
-		PKIRoleEC:       "ec",
-		PKIRoleEd25519:  "ed25519",
-		RoleID:          "roleID",
-		SecretID:        auth.SecretID{FromString: "secretID"},
-		AppRole:         "approle",
-		IsWrappingToken: false,
+		PKIMountPath:   "pki",
+		PKIRoleDefault: "role",
+		PKIRoleRSA:     "rsa",
+		PKIRoleEC:      "ec",
+		PKIRoleEd25519: "ed25519",
 	}
 
 	type fields struct {
@@ -407,15 +395,11 @@ func TestVaultCAS_RenewCertificate(t *testing.T) {
 	_, client := testCAHelper(t)
 
 	options := VaultOptions{
-		PKI:             "pki",
-		PKIRoleDefault:  "role",
-		PKIRoleRSA:      "rsa",
-		PKIRoleEC:       "ec",
-		PKIRoleEd25519:  "ed25519",
-		RoleID:          "roleID",
-		SecretID:        auth.SecretID{FromString: "secretID"},
-		AppRole:         "approle",
-		IsWrappingToken: false,
+		PKIMountPath:   "pki",
+		PKIRoleDefault: "role",
+		PKIRoleRSA:     "rsa",
+		PKIRoleEC:      "ec",
+		PKIRoleEd25519: "ed25519",
 	}
 
 	type fields struct {
@@ -464,202 +448,66 @@ func TestVaultCAS_loadOptions(t *testing.T) {
 		want    *VaultOptions
 		wantErr bool
 	}{
-		{
-			"ok mandatory with SecretID FromString",
-			`{"RoleID": "roleID", "SecretID": {"FromString": "secretID"}}`,
-			&VaultOptions{
-				PKI:             "pki",
-				PKIRoleDefault:  "default",
-				PKIRoleRSA:      "default",
-				PKIRoleEC:       "default",
-				PKIRoleEd25519:  "default",
-				RoleID:          "roleID",
-				SecretID:        auth.SecretID{FromString: "secretID"},
-				AppRole:         "auth/approle",
-				IsWrappingToken: false,
-			},
-			false,
-		},
-		{
-			"ok mandatory with SecretID FromFile",
-			`{"RoleID": "roleID", "SecretID": {"FromFile": "secretID"}}`,
-			&VaultOptions{
-				PKI:             "pki",
-				PKIRoleDefault:  "default",
-				PKIRoleRSA:      "default",
-				PKIRoleEC:       "default",
-				PKIRoleEd25519:  "default",
-				RoleID:          "roleID",
-				SecretID:        auth.SecretID{FromFile: "secretID"},
-				AppRole:         "auth/approle",
-				IsWrappingToken: false,
-			},
-			false,
-		},
-		{
-			"ok mandatory with SecretID FromEnv",
-			`{"RoleID": "roleID", "SecretID": {"FromEnv": "secretID"}}`,
-			&VaultOptions{
-				PKI:             "pki",
-				PKIRoleDefault:  "default",
-				PKIRoleRSA:      "default",
-				PKIRoleEC:       "default",
-				PKIRoleEd25519:  "default",
-				RoleID:          "roleID",
-				SecretID:        auth.SecretID{FromEnv: "secretID"},
-				AppRole:         "auth/approle",
-				IsWrappingToken: false,
-			},
-			false,
-		},
 		{
 			"ok mandatory PKIRole PKIRoleEd25519",
-			`{"PKIRoleDefault": "role", "PKIRoleEd25519": "ed25519" , "RoleID": "roleID", "SecretID": {"FromEnv": "secretID"}}`,
+			`{"PKIRoleDefault": "role", "PKIRoleEd25519": "ed25519"}`,
 			&VaultOptions{
-				PKI:             "pki",
-				PKIRoleDefault:  "role",
-				PKIRoleRSA:      "role",
-				PKIRoleEC:       "role",
-				PKIRoleEd25519:  "ed25519",
-				RoleID:          "roleID",
-				SecretID:        auth.SecretID{FromEnv: "secretID"},
-				AppRole:         "auth/approle",
-				IsWrappingToken: false,
+				PKIMountPath:   "pki",
+				PKIRoleDefault: "role",
+				PKIRoleRSA:     "role",
+				PKIRoleEC:      "role",
+				PKIRoleEd25519: "ed25519",
 			},
 			false,
 		},
 		{
 			"ok mandatory PKIRole PKIRoleEC",
-			`{"PKIRoleDefault": "role", "PKIRoleEC": "ec" , "RoleID": "roleID", "SecretID": {"FromEnv": "secretID"}}`,
+			`{"PKIRoleDefault": "role", "PKIRoleEC": "ec"}`,
 			&VaultOptions{
-				PKI:             "pki",
-				PKIRoleDefault:  "role",
-				PKIRoleRSA:      "role",
-				PKIRoleEC:       "ec",
-				PKIRoleEd25519:  "role",
-				RoleID:          "roleID",
-				SecretID:        auth.SecretID{FromEnv: "secretID"},
-				AppRole:         "auth/approle",
-				IsWrappingToken: false,
+				PKIMountPath:   "pki",
+				PKIRoleDefault: "role",
+				PKIRoleRSA:     "role",
+				PKIRoleEC:      "ec",
+				PKIRoleEd25519: "role",
 			},
 			false,
 		},
 		{
 			"ok mandatory PKIRole PKIRoleRSA",
-			`{"PKIRoleDefault": "role", "PKIRoleRSA": "rsa" , "RoleID": "roleID", "SecretID": {"FromEnv": "secretID"}}`,
+			`{"PKIRoleDefault": "role", "PKIRoleRSA": "rsa"}`,
 			&VaultOptions{
-				PKI:             "pki",
-				PKIRoleDefault:  "role",
-				PKIRoleRSA:      "rsa",
-				PKIRoleEC:       "role",
-				PKIRoleEd25519:  "role",
-				RoleID:          "roleID",
-				SecretID:        auth.SecretID{FromEnv: "secretID"},
-				AppRole:         "auth/approle",
-				IsWrappingToken: false,
+				PKIMountPath:   "pki",
+				PKIRoleDefault: "role",
+				PKIRoleRSA:     "rsa",
+				PKIRoleEC:      "role",
+				PKIRoleEd25519: "role",
 			},
 			false,
 		},
 		{
 			"ok mandatory PKIRoleRSA PKIRoleEC PKIRoleEd25519",
-			`{"PKIRoleRSA": "rsa", "PKIRoleEC": "ec", "PKIRoleEd25519": "ed25519", "RoleID": "roleID", "SecretID": {"FromEnv": "secretID"}}`,
+			`{"PKIRoleRSA": "rsa", "PKIRoleEC": "ec", "PKIRoleEd25519": "ed25519"}`,
 			&VaultOptions{
-				PKI:             "pki",
-				PKIRoleDefault:  "default",
-				PKIRoleRSA:      "rsa",
-				PKIRoleEC:       "ec",
-				PKIRoleEd25519:  "ed25519",
-				RoleID:          "roleID",
-				SecretID:        auth.SecretID{FromEnv: "secretID"},
-				AppRole:         "auth/approle",
-				IsWrappingToken: false,
+				PKIMountPath:   "pki",
+				PKIRoleDefault: "default",
+				PKIRoleRSA:     "rsa",
+				PKIRoleEC:      "ec",
+				PKIRoleEd25519: "ed25519",
 			},
 			false,
 		},
 		{
 			"ok mandatory PKIRoleRSA PKIRoleEC PKIRoleEd25519 with useless PKIRoleDefault",
-			`{"PKIRoleDefault": "role", "PKIRoleRSA": "rsa", "PKIRoleEC": "ec", "PKIRoleEd25519": "ed25519", "RoleID": "roleID", "SecretID": {"FromEnv": "secretID"}}`,
+			`{"PKIRoleDefault": "role", "PKIRoleRSA": "rsa", "PKIRoleEC": "ec", "PKIRoleEd25519": "ed25519"}`,
 			&VaultOptions{
-				PKI:             "pki",
-				PKIRoleDefault:  "role",
-				PKIRoleRSA:      "rsa",
-				PKIRoleEC:       "ec",
-				PKIRoleEd25519:  "ed25519",
-				RoleID:          "roleID",
-				SecretID:        auth.SecretID{FromEnv: "secretID"},
-				AppRole:         "auth/approle",
-				IsWrappingToken: false,
+				PKIMountPath:   "pki",
+				PKIRoleDefault: "role",
+				PKIRoleRSA:     "rsa",
+				PKIRoleEC:      "ec",
+				PKIRoleEd25519: "ed25519",
 			},
 			false,
 		},
-		{
-			"ok mandatory with AppRole",
-			`{"AppRole": "test", "RoleID": "roleID", "SecretID": {"FromString": "secretID"}}`,
-			&VaultOptions{
-				PKI:             "pki",
-				PKIRoleDefault:  "default",
-				PKIRoleRSA:      "default",
-				PKIRoleEC:       "default",
-				PKIRoleEd25519:  "default",
-				RoleID:          "roleID",
-				SecretID:        auth.SecretID{FromString: "secretID"},
-				AppRole:         "test",
-				IsWrappingToken: false,
-			},
-			false,
-		},
-		{
-			"ok mandatory with IsWrappingToken",
-			`{"IsWrappingToken": true, "RoleID": "roleID", "SecretID": {"FromString": "secretID"}}`,
-			&VaultOptions{
-				PKI:             "pki",
-				PKIRoleDefault:  "default",
-				PKIRoleRSA:      "default",
-				PKIRoleEC:       "default",
-				PKIRoleEd25519:  "default",
-				RoleID:          "roleID",
-				SecretID:        auth.SecretID{FromString: "secretID"},
-				AppRole:         "auth/approle",
-				IsWrappingToken: true,
-			},
-			false,
-		},
-		{
-			"fail with SecretID FromFail",
-			`{"RoleID": "roleID", "SecretID": {"FromFail": "secretID"}}`,
-			nil,
-			true,
-		},
-		{
-			"fail with SecretID empty FromEnv",
-			`{"RoleID": "roleID", "SecretID": {"FromEnv": ""}}`,
-			nil,
-			true,
-		},
-		{
-			"fail with SecretID empty FromFile",
-			`{"RoleID": "roleID", "SecretID": {"FromFile": ""}}`,
-			nil,
-			true,
-		},
-		{
-			"fail with SecretID empty FromString",
-			`{"RoleID": "roleID", "SecretID": {"FromString": ""}}`,
-			nil,
-			true,
-		},
-		{
-			"fail mandatory with SecretID FromFail",
-			`{"RoleID": "roleID", "SecretID": {"FromFail": "secretID"}}`,
-			nil,
-			true,
-		},
-		{
-			"fail missing RoleID",
-			`{"SecretID": {"FromString": "secretID"}}`,
-			nil,
-			true,
-		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {

go.mod

@@ -29,6 +29,7 @@ require (
 	github.com/googleapis/gax-go/v2 v2.1.1
 	github.com/hashicorp/vault/api v1.3.1
 	github.com/hashicorp/vault/api/auth/approle v0.1.1
+	github.com/hashicorp/vault/api/auth/kubernetes v0.1.0
 	github.com/jhump/protoreflect v1.9.0 // indirect
 	github.com/mattn/go-colorable v0.1.8 // indirect
 	github.com/mattn/go-isatty v0.0.13 // indirect

go.sum

@@ -449,6 +449,8 @@ github.com/hashicorp/vault/api v1.3.1 h1:pkDkcgTh47PRjY1NEFeofqR4W/HkNUi9qIakESO
 github.com/hashicorp/vault/api v1.3.1/go.mod h1:QeJoWxMFt+MsuWcYhmwRLwKEXrjwAFFywzhptMsTIUw=
 github.com/hashicorp/vault/api/auth/approle v0.1.1 h1:R5yA+xcNvw1ix6bDuWOaLOq2L4L77zDCVsethNw97xQ=
 github.com/hashicorp/vault/api/auth/approle v0.1.1/go.mod h1:mHOLgh//xDx4dpqXoq6tS8Ob0FoCFWLU2ibJ26Lfmag=
+github.com/hashicorp/vault/api/auth/kubernetes v0.1.0 h1:6BtyahbF4aQp8gg3ww0A/oIoqzbhpNP1spXU3nHE0n0=
+github.com/hashicorp/vault/api/auth/kubernetes v0.1.0/go.mod h1:Pdgk78uIs0mgDOLvc3a+h/vYIT9rznw2sz+ucuH9024=
 github.com/hashicorp/vault/sdk v0.3.0 h1:kR3dpxNkhh/wr6ycaJYqp6AFT/i2xaftbfnwZduTKEY=
 github.com/hashicorp/vault/sdk v0.3.0/go.mod h1:aZ3fNuL5VNydQk8GcLJ2TV8YCRVvyaakYkhZRoVuhj0=
 github.com/hashicorp/yamux v0.0.0-20180604194846-3520598351bb h1:b5rjCoWHc7eqmAS4/qyk21ZsHyb6Mxv/jykxvNTkU4M=