adding edit service account api/ui (#1545)

Co-authored-by: Alex <33497058+bexsoft@users.noreply.github.com>

restapi/client-admin.go

@@ -99,6 +99,7 @@ type MinioAdmin interface {
 	listServiceAccounts(ctx context.Context, user string) (madmin.ListServiceAccountsResp, error)
 	deleteServiceAccount(ctx context.Context, serviceAccount string) error
 	infoServiceAccount(ctx context.Context, serviceAccount string) (madmin.InfoServiceAccountResp, error)
+	updateServiceAccount(ctx context.Context, serviceAccount string, opts madmin.UpdateServiceAccountReq) error
 	// Remote Buckets
 	listRemoteBuckets(ctx context.Context, bucket, arnType string) (targets []madmin.BucketTarget, err error)
 	getRemoteBucket(ctx context.Context, bucket, arnType string) (targets *madmin.BucketTarget, err error)
@@ -312,6 +313,11 @@ func (ac AdminClient) infoServiceAccount(ctx context.Context, serviceAccount str
 	return ac.Client.InfoServiceAccount(ctx, serviceAccount)
 }
 
+// implements madmin.UpdateServiceAccount()
+func (ac AdminClient) updateServiceAccount(ctx context.Context, serviceAccount string, opts madmin.UpdateServiceAccountReq) error {
+	return ac.Client.UpdateServiceAccount(ctx, serviceAccount, opts)
+}
+
 // AccountInfo implements madmin.AccountInfo()
 func (ac AdminClient) AccountInfo(ctx context.Context) (madmin.AccountInfo, error) {
 	return ac.Client.AccountInfo(ctx, madmin.AccountOpts{})

restapi/embedded_spec.go

@@ -3184,6 +3184,40 @@ func init() {
             }
           }
         }
+      },
+      "put": {
+        "tags": [
+          "UserAPI"
+        ],
+        "summary": "Set Service Account Policy",
+        "operationId": "SetServiceAccountPolicy",
+        "parameters": [
+          {
+            "type": "string",
+            "name": "access_key",
+            "in": "path",
+            "required": true
+          },
+          {
+            "name": "policy",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/addServiceAccountPolicyRequest"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "A successful response."
+          },
+          "default": {
+            "description": "Generic error response.",
+            "schema": {
+              "$ref": "#/definitions/error"
+            }
+          }
+        }
       }
     },
     "/service/restart": {
@@ -3918,6 +3952,17 @@ func init() {
         }
       }
     },
+    "addServiceAccountPolicyRequest": {
+      "type": "object",
+      "required": [
+        "policy"
+      ],
+      "properties": {
+        "policy": {
+          "type": "string"
+        }
+      }
+    },
     "addUserRequest": {
       "type": "object",
       "required": [
@@ -9397,6 +9442,40 @@ func init() {
             }
           }
         }
+      },
+      "put": {
+        "tags": [
+          "UserAPI"
+        ],
+        "summary": "Set Service Account Policy",
+        "operationId": "SetServiceAccountPolicy",
+        "parameters": [
+          {
+            "type": "string",
+            "name": "access_key",
+            "in": "path",
+            "required": true
+          },
+          {
+            "name": "policy",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/addServiceAccountPolicyRequest"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "A successful response."
+          },
+          "default": {
+            "description": "Generic error response.",
+            "schema": {
+              "$ref": "#/definitions/error"
+            }
+          }
+        }
       }
     },
     "/service/restart": {
@@ -10249,6 +10328,17 @@ func init() {
         }
       }
     },
+    "addServiceAccountPolicyRequest": {
+      "type": "object",
+      "required": [
+        "policy"
+      ],
+      "properties": {
+        "policy": {
+          "type": "string"
+        }
+      }
+    },
     "addUserRequest": {
       "type": "object",
       "required": [

restapi/operations/console_api.go

@@ -356,6 +356,9 @@ func NewConsoleAPI(spec *loads.Document) *ConsoleAPI {
 		AdminAPISetPolicyMultipleHandler: admin_api.SetPolicyMultipleHandlerFunc(func(params admin_api.SetPolicyMultipleParams, principal *models.Principal) middleware.Responder {
 			return middleware.NotImplemented("operation admin_api.SetPolicyMultiple has not yet been implemented")
 		}),
+		UserAPISetServiceAccountPolicyHandler: user_api.SetServiceAccountPolicyHandlerFunc(func(params user_api.SetServiceAccountPolicyParams, principal *models.Principal) middleware.Responder {
+			return middleware.NotImplemented("operation user_api.SetServiceAccountPolicy has not yet been implemented")
+		}),
 		UserAPIShareObjectHandler: user_api.ShareObjectHandlerFunc(func(params user_api.ShareObjectParams, principal *models.Principal) middleware.Responder {
 			return middleware.NotImplemented("operation user_api.ShareObject has not yet been implemented")
 		}),
@@ -641,6 +644,8 @@ type ConsoleAPI struct {
 	AdminAPISetPolicyHandler admin_api.SetPolicyHandler
 	// AdminAPISetPolicyMultipleHandler sets the operation handler for the set policy multiple operation
 	AdminAPISetPolicyMultipleHandler admin_api.SetPolicyMultipleHandler
+	// UserAPISetServiceAccountPolicyHandler sets the operation handler for the set service account policy operation
+	UserAPISetServiceAccountPolicyHandler user_api.SetServiceAccountPolicyHandler
 	// UserAPIShareObjectHandler sets the operation handler for the share object operation
 	UserAPIShareObjectHandler user_api.ShareObjectHandler
 	// AdminAPISubnetInfoHandler sets the operation handler for the subnet info operation
@@ -1043,6 +1048,9 @@ func (o *ConsoleAPI) Validate() error {
 	if o.AdminAPISetPolicyMultipleHandler == nil {
 		unregistered = append(unregistered, "admin_api.SetPolicyMultipleHandler")
 	}
+	if o.UserAPISetServiceAccountPolicyHandler == nil {
+		unregistered = append(unregistered, "user_api.SetServiceAccountPolicyHandler")
+	}
 	if o.UserAPIShareObjectHandler == nil {
 		unregistered = append(unregistered, "user_api.ShareObjectHandler")
 	}
@@ -1569,6 +1577,10 @@ func (o *ConsoleAPI) initHandlerCache() {
 		o.handlers["PUT"] = make(map[string]http.Handler)
 	}
 	o.handlers["PUT"]["/set-policy-multi"] = admin_api.NewSetPolicyMultiple(o.context, o.AdminAPISetPolicyMultipleHandler)
+	if o.handlers["PUT"] == nil {
+		o.handlers["PUT"] = make(map[string]http.Handler)
+	}
+	o.handlers["PUT"]["/service-accounts/{access_key}/policy"] = user_api.NewSetServiceAccountPolicy(o.context, o.UserAPISetServiceAccountPolicyHandler)
 	if o.handlers["GET"] == nil {
 		o.handlers["GET"] = make(map[string]http.Handler)
 	}

restapi/operations/user_api/set_service_account_policy.go

@@ -0,0 +1,88 @@
+// Code generated by go-swagger; DO NOT EDIT.
+
+// This file is part of MinIO Console Server
+// Copyright (c) 2021 MinIO, Inc.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+package user_api
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the generate command
+
+import (
+	"net/http"
+
+	"github.com/go-openapi/runtime/middleware"
+
+	"github.com/minio/console/models"
+)
+
+// SetServiceAccountPolicyHandlerFunc turns a function with the right signature into a set service account policy handler
+type SetServiceAccountPolicyHandlerFunc func(SetServiceAccountPolicyParams, *models.Principal) middleware.Responder
+
+// Handle executing the request and returning a response
+func (fn SetServiceAccountPolicyHandlerFunc) Handle(params SetServiceAccountPolicyParams, principal *models.Principal) middleware.Responder {
+	return fn(params, principal)
+}
+
+// SetServiceAccountPolicyHandler interface for that can handle valid set service account policy params
+type SetServiceAccountPolicyHandler interface {
+	Handle(SetServiceAccountPolicyParams, *models.Principal) middleware.Responder
+}
+
+// NewSetServiceAccountPolicy creates a new http.Handler for the set service account policy operation
+func NewSetServiceAccountPolicy(ctx *middleware.Context, handler SetServiceAccountPolicyHandler) *SetServiceAccountPolicy {
+	return &SetServiceAccountPolicy{Context: ctx, Handler: handler}
+}
+
+/* SetServiceAccountPolicy swagger:route PUT /service-accounts/{access_key}/policy UserAPI setServiceAccountPolicy
+
+Set Service Account Policy
+
+*/
+type SetServiceAccountPolicy struct {
+	Context *middleware.Context
+	Handler SetServiceAccountPolicyHandler
+}
+
+func (o *SetServiceAccountPolicy) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
+	route, rCtx, _ := o.Context.RouteInfo(r)
+	if rCtx != nil {
+		*r = *rCtx
+	}
+	var Params = NewSetServiceAccountPolicyParams()
+	uprinc, aCtx, err := o.Context.Authorize(r, route)
+	if err != nil {
+		o.Context.Respond(rw, r, route.Produces, route, err)
+		return
+	}
+	if aCtx != nil {
+		*r = *aCtx
+	}
+	var principal *models.Principal
+	if uprinc != nil {
+		principal = uprinc.(*models.Principal) // this is really a models.Principal, I promise
+	}
+
+	if err := o.Context.BindValidRequest(r, route, &Params); err != nil { // bind params
+		o.Context.Respond(rw, r, route.Produces, route, err)
+		return
+	}
+
+	res := o.Handler.Handle(Params, principal) // actually handle the request
+	o.Context.Respond(rw, r, route.Produces, route, res)
+
+}

restapi/operations/user_api/set_service_account_policy_parameters.go

@@ -0,0 +1,127 @@
+// Code generated by go-swagger; DO NOT EDIT.
+
+// This file is part of MinIO Console Server
+// Copyright (c) 2021 MinIO, Inc.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+package user_api
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the swagger generate command
+
+import (
+	"context"
+	"io"
+	"net/http"
+
+	"github.com/go-openapi/errors"
+	"github.com/go-openapi/runtime"
+	"github.com/go-openapi/runtime/middleware"
+	"github.com/go-openapi/strfmt"
+	"github.com/go-openapi/validate"
+
+	"github.com/minio/console/models"
+)
+
+// NewSetServiceAccountPolicyParams creates a new SetServiceAccountPolicyParams object
+//
+// There are no default values defined in the spec.
+func NewSetServiceAccountPolicyParams() SetServiceAccountPolicyParams {
+
+	return SetServiceAccountPolicyParams{}
+}
+
+// SetServiceAccountPolicyParams contains all the bound params for the set service account policy operation
+// typically these are obtained from a http.Request
+//
+// swagger:parameters SetServiceAccountPolicy
+type SetServiceAccountPolicyParams struct {
+
+	// HTTP Request Object
+	HTTPRequest *http.Request `json:"-"`
+
+	/*
+	  Required: true
+	  In: path
+	*/
+	AccessKey string
+	/*
+	  Required: true
+	  In: body
+	*/
+	Policy *models.AddServiceAccountPolicyRequest
+}
+
+// BindRequest both binds and validates a request, it assumes that complex things implement a Validatable(strfmt.Registry) error interface
+// for simple values it will use straight method calls.
+//
+// To ensure default values, the struct must have been initialized with NewSetServiceAccountPolicyParams() beforehand.
+func (o *SetServiceAccountPolicyParams) BindRequest(r *http.Request, route *middleware.MatchedRoute) error {
+	var res []error
+
+	o.HTTPRequest = r
+
+	rAccessKey, rhkAccessKey, _ := route.Params.GetOK("access_key")
+	if err := o.bindAccessKey(rAccessKey, rhkAccessKey, route.Formats); err != nil {
+		res = append(res, err)
+	}
+
+	if runtime.HasBody(r) {
+		defer r.Body.Close()
+		var body models.AddServiceAccountPolicyRequest
+		if err := route.Consumer.Consume(r.Body, &body); err != nil {
+			if err == io.EOF {
+				res = append(res, errors.Required("policy", "body", ""))
+			} else {
+				res = append(res, errors.NewParseError("policy", "body", "", err))
+			}
+		} else {
+			// validate body object
+			if err := body.Validate(route.Formats); err != nil {
+				res = append(res, err)
+			}
+
+			ctx := validate.WithOperationRequest(context.Background())
+			if err := body.ContextValidate(ctx, route.Formats); err != nil {
+				res = append(res, err)
+			}
+
+			if len(res) == 0 {
+				o.Policy = &body
+			}
+		}
+	} else {
+		res = append(res, errors.Required("policy", "body", ""))
+	}
+	if len(res) > 0 {
+		return errors.CompositeValidationError(res...)
+	}
+	return nil
+}
+
+// bindAccessKey binds and validates parameter AccessKey from path.
+func (o *SetServiceAccountPolicyParams) bindAccessKey(rawData []string, hasKey bool, formats strfmt.Registry) error {
+	var raw string
+	if len(rawData) > 0 {
+		raw = rawData[len(rawData)-1]
+	}
+
+	// Required: true
+	// Parameter is provided by construction from the route
+	o.AccessKey = raw
+
+	return nil
+}

restapi/operations/user_api/set_service_account_policy_responses.go

@@ -0,0 +1,113 @@
+// Code generated by go-swagger; DO NOT EDIT.
+
+// This file is part of MinIO Console Server
+// Copyright (c) 2021 MinIO, Inc.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+package user_api
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the swagger generate command
+
+import (
+	"net/http"
+
+	"github.com/go-openapi/runtime"
+
+	"github.com/minio/console/models"
+)
+
+// SetServiceAccountPolicyOKCode is the HTTP code returned for type SetServiceAccountPolicyOK
+const SetServiceAccountPolicyOKCode int = 200
+
+/*SetServiceAccountPolicyOK A successful response.
+
+swagger:response setServiceAccountPolicyOK
+*/
+type SetServiceAccountPolicyOK struct {
+}
+
+// NewSetServiceAccountPolicyOK creates SetServiceAccountPolicyOK with default headers values
+func NewSetServiceAccountPolicyOK() *SetServiceAccountPolicyOK {
+
+	return &SetServiceAccountPolicyOK{}
+}
+
+// WriteResponse to the client
+func (o *SetServiceAccountPolicyOK) WriteResponse(rw http.ResponseWriter, producer runtime.Producer) {
+
+	rw.Header().Del(runtime.HeaderContentType) //Remove Content-Type on empty responses
+
+	rw.WriteHeader(200)
+}
+
+/*SetServiceAccountPolicyDefault Generic error response.
+
+swagger:response setServiceAccountPolicyDefault
+*/
+type SetServiceAccountPolicyDefault struct {
+	_statusCode int
+
+	/*
+	  In: Body
+	*/
+	Payload *models.Error `json:"body,omitempty"`
+}
+
+// NewSetServiceAccountPolicyDefault creates SetServiceAccountPolicyDefault with default headers values
+func NewSetServiceAccountPolicyDefault(code int) *SetServiceAccountPolicyDefault {
+	if code <= 0 {
+		code = 500
+	}
+
+	return &SetServiceAccountPolicyDefault{
+		_statusCode: code,
+	}
+}
+
+// WithStatusCode adds the status to the set service account policy default response
+func (o *SetServiceAccountPolicyDefault) WithStatusCode(code int) *SetServiceAccountPolicyDefault {
+	o._statusCode = code
+	return o
+}
+
+// SetStatusCode sets the status to the set service account policy default response
+func (o *SetServiceAccountPolicyDefault) SetStatusCode(code int) {
+	o._statusCode = code
+}
+
+// WithPayload adds the payload to the set service account policy default response
+func (o *SetServiceAccountPolicyDefault) WithPayload(payload *models.Error) *SetServiceAccountPolicyDefault {
+	o.Payload = payload
+	return o
+}
+
+// SetPayload sets the payload to the set service account policy default response
+func (o *SetServiceAccountPolicyDefault) SetPayload(payload *models.Error) {
+	o.Payload = payload
+}
+
+// WriteResponse to the client
+func (o *SetServiceAccountPolicyDefault) WriteResponse(rw http.ResponseWriter, producer runtime.Producer) {
+
+	rw.WriteHeader(o._statusCode)
+	if o.Payload != nil {
+		payload := o.Payload
+		if err := producer.Produce(rw, payload); err != nil {
+			panic(err) // let the recovery middleware deal with this
+		}
+	}
+}

restapi/operations/user_api/set_service_account_policy_urlbuilder.go

@@ -0,0 +1,116 @@
+// Code generated by go-swagger; DO NOT EDIT.
+
+// This file is part of MinIO Console Server
+// Copyright (c) 2021 MinIO, Inc.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+package user_api
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the generate command
+
+import (
+	"errors"
+	"net/url"
+	golangswaggerpaths "path"
+	"strings"
+)
+
+// SetServiceAccountPolicyURL generates an URL for the set service account policy operation
+type SetServiceAccountPolicyURL struct {
+	AccessKey string
+
+	_basePath string
+	// avoid unkeyed usage
+	_ struct{}
+}
+
+// WithBasePath sets the base path for this url builder, only required when it's different from the
+// base path specified in the swagger spec.
+// When the value of the base path is an empty string
+func (o *SetServiceAccountPolicyURL) WithBasePath(bp string) *SetServiceAccountPolicyURL {
+	o.SetBasePath(bp)
+	return o
+}
+
+// SetBasePath sets the base path for this url builder, only required when it's different from the
+// base path specified in the swagger spec.
+// When the value of the base path is an empty string
+func (o *SetServiceAccountPolicyURL) SetBasePath(bp string) {
+	o._basePath = bp
+}
+
+// Build a url path and query string
+func (o *SetServiceAccountPolicyURL) Build() (*url.URL, error) {
+	var _result url.URL
+
+	var _path = "/service-accounts/{access_key}/policy"
+
+	accessKey := o.AccessKey
+	if accessKey != "" {
+		_path = strings.Replace(_path, "{access_key}", accessKey, -1)
+	} else {
+		return nil, errors.New("accessKey is required on SetServiceAccountPolicyURL")
+	}
+
+	_basePath := o._basePath
+	if _basePath == "" {
+		_basePath = "/api/v1"
+	}
+	_result.Path = golangswaggerpaths.Join(_basePath, _path)
+
+	return &_result, nil
+}
+
+// Must is a helper function to panic when the url builder returns an error
+func (o *SetServiceAccountPolicyURL) Must(u *url.URL, err error) *url.URL {
+	if err != nil {
+		panic(err)
+	}
+	if u == nil {
+		panic("url can't be nil")
+	}
+	return u
+}
+
+// String returns the string representation of the path with query string
+func (o *SetServiceAccountPolicyURL) String() string {
+	return o.Must(o.Build()).String()
+}
+
+// BuildFull builds a full url with scheme, host, path and query string
+func (o *SetServiceAccountPolicyURL) BuildFull(scheme, host string) (*url.URL, error) {
+	if scheme == "" {
+		return nil, errors.New("scheme is required for a full url on SetServiceAccountPolicyURL")
+	}
+	if host == "" {
+		return nil, errors.New("host is required for a full url on SetServiceAccountPolicyURL")
+	}
+
+	base, err := o.Build()
+	if err != nil {
+		return nil, err
+	}
+
+	base.Scheme = scheme
+	base.Host = host
+	return base, nil
+}
+
+// StringFull returns the string representation of a complete url
+func (o *SetServiceAccountPolicyURL) StringFull(scheme, host string) string {
+	return o.Must(o.BuildFull(scheme, host)).String()
+}

restapi/user_service_accounts.go

@@ -25,12 +25,12 @@ import (
 	"strings"
 	"time"
 
-	"github.com/minio/console/restapi/operations/admin_api"
-
 	"github.com/go-openapi/runtime/middleware"
 	"github.com/minio/console/models"
 	"github.com/minio/console/restapi/operations"
+	"github.com/minio/console/restapi/operations/admin_api"
 	"github.com/minio/console/restapi/operations/user_api"
+	"github.com/minio/madmin-go"
 	iampolicy "github.com/minio/pkg/iam/policy"
 )
 
@@ -100,6 +100,14 @@ func registerServiceAccountsHandlers(api *operations.ConsoleAPI) {
 		return user_api.NewGetServiceAccountPolicyOK().WithPayload(serviceAccounts)
 	})
 
+	api.UserAPISetServiceAccountPolicyHandler = user_api.SetServiceAccountPolicyHandlerFunc(func(params user_api.SetServiceAccountPolicyParams, session *models.Principal) middleware.Responder {
+		err := getSetServiceAccountPolicyResponse(session, params.AccessKey, *params.Policy.Policy)
+		if err != nil {
+			return user_api.NewSetServiceAccountPolicyDefault(int(err.Code)).WithPayload(err)
+		}
+		return user_api.NewSetServiceAccountPolicyOK()
+	})
+
 	// Delete multiple service accounts
 	api.UserAPIDeleteMultipleServiceAccountsHandler = user_api.DeleteMultipleServiceAccountsHandlerFunc(func(params user_api.DeleteMultipleServiceAccountsParams, session *models.Principal) middleware.Responder {
 		if err := getDeleteMultipleServiceAccountsResponse(session, params.SelectedSA); err != nil {
@@ -396,6 +404,33 @@ func getServiceAccountPolicyResponse(session *models.Principal, accessKey string
 	return serviceAccounts, nil
 }
 
+// setServiceAccountPolicy sets policy for a service account
+func setServiceAccountPolicy(ctx context.Context, userClient MinioAdmin, accessKey string, policy string) error {
+	err := userClient.updateServiceAccount(ctx, accessKey, madmin.UpdateServiceAccountReq{NewPolicy: json.RawMessage(policy)})
+	return err
+}
+
+// getSetServiceAccountPolicyResponse authenticates the user and calls
+// getSetServiceAccountPolicy to set the policy for a service account
+func getSetServiceAccountPolicyResponse(session *models.Principal, accessKey string, policy string) *models.Error {
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*20)
+	defer cancel()
+
+	userAdmin, err := NewMinioAdminClient(session)
+	if err != nil {
+		return prepareError(err)
+	}
+	// create a MinIO user Admin Client interface implementation
+	// defining the client to be used
+	userAdminClient := AdminClient{Client: userAdmin}
+
+	err = setServiceAccountPolicy(ctx, userAdminClient, accessKey, policy)
+	if err != nil {
+		return prepareError(err)
+	}
+	return nil
+}
+
 // getDeleteMultipleServiceAccountsResponse authenticates the user and calls deleteServiceAccount for each account listed in selectedSAs
 func getDeleteMultipleServiceAccountsResponse(session *models.Principal, selectedSAs []string) *models.Error {
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*20)

restapi/user_service_accounts_test.go

@@ -33,6 +33,7 @@ var minioAddServiceAccountMock func(ctx context.Context, policy *iampolicy.Polic
 var minioListServiceAccountsMock func(ctx context.Context, user string) (madmin.ListServiceAccountsResp, error)
 var minioDeleteServiceAccountMock func(ctx context.Context, serviceAccount string) error
 var minioInfoServiceAccountMock func(ctx context.Context, serviceAccount string) (madmin.InfoServiceAccountResp, error)
+var minioUpdateServiceAccountMock func(ctx context.Context, serviceAccount string, opts madmin.UpdateServiceAccountReq) error
 
 // mock function of AddServiceAccount()
 func (ac adminClientMock) addServiceAccount(ctx context.Context, policy *iampolicy.Policy, user string, accessKey string, secretKey string) (madmin.Credentials, error) {
@@ -54,6 +55,11 @@ func (ac adminClientMock) infoServiceAccount(ctx context.Context, serviceAccount
 	return minioInfoServiceAccountMock(ctx, serviceAccount)
 }
 
+// mock function of UpdateServiceAccount()
+func (ac adminClientMock) updateServiceAccount(ctx context.Context, serviceAccount string, opts madmin.UpdateServiceAccountReq) error {
+	return minioUpdateServiceAccountMock(ctx, serviceAccount, opts)
+}
+
 func TestAddServiceAccount(t *testing.T) {
 	assert := assert.New(t)
 	// mock minIO client