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fix: deprecate requirement of session token for service accounts (#9320)

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This PR fixes couple of behaviors with service accounts

- not need to have session token for service accounts
- service accounts can be generated by any user for themselves
  implicitly, with a valid signature.
- policy input for AddNewServiceAccount API is not fully typed
  allowing for validation before it is sent to the server.
- also bring in additional context for admin API errors if any
  when replying back to client.
- deprecate GetServiceAccount API as we do not need to reply
  back session tokens
This commit is contained in:
Harshavardhana
2020-04-14 11:28:56 -07:00
committed by GitHub
parent bfec5fe200
commit 37d066b563
14 changed files with 167 additions and 249 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
pkg/madmin/examples/add-service-account-and-policy.go
View File

@@ -24,6 +24,9 @@ import (
"fmt"
"log"
"github.com/minio/minio/pkg/bucket/policy"
"github.com/minio/minio/pkg/bucket/policy/condition"
iampolicy "github.com/minio/minio/pkg/iam/policy"
"github.com/minio/minio/pkg/madmin"
)
@@ -41,10 +44,18 @@ func main() {
log.Fatalln(err)
}
// Create policy
policy := `{"Version": "2012-10-17","Statement": [{"Action": ["s3:GetObject"],"Effect": "Allow","Resource": ["arn:aws:s3:::testbucket/*"],"Sid": ""}]}`
p := iampolicy.Policy{
Version: iampolicy.DefaultVersion,
Statements: []Statement{
iampolicy.NewStatement(
policy.Allow,
iampolicy.NewActionSet(iampolicy.GetObjectAction),
iampolicy.NewResourceSet(iampolicy.NewResource("testbucket/*", "")),
condition.NewFunctions(),
)},
}
creds, err := madmClnt.AddServiceAccount(context.Background(), "parentuser", policy)
creds, err := madmClnt.AddServiceAccount(context.Background(), "parentuser", &p)
if err != nil {
log.Fatalln(err)
}

16
pkg/madmin/examples/add-user-and-policy.go
View File

@@ -23,6 +23,9 @@ import (
"context"
"log"
"github.com/minio/minio/pkg/bucket/policy"
"github.com/minio/minio/pkg/bucket/policy/condition"
iampolicy "github.com/minio/minio/pkg/iam/policy"
"github.com/minio/minio/pkg/madmin"
)
@@ -45,9 +48,18 @@ func main() {
}
// Create policy
policy := `{"Version": "2012-10-17","Statement": [{"Action": ["s3:GetObject"],"Effect": "Allow","Resource": ["arn:aws:s3:::my-bucketname/*"],"Sid": ""}]}`
p := iampolicy.Policy{
Version: iampolicy.DefaultVersion,
Statements: []iampolicy.Statement{
iampolicy.NewStatement(
policy.Allow,
iampolicy.NewActionSet(iampolicy.GetObjectAction),
iampolicy.NewResourceSet(iampolicy.NewResource("testbucket/*", "")),
condition.NewFunctions(),
)},
}
if err = madmClnt.AddCannedPolicy(context.Background(), "get-only", policy); err != nil {
if err = madmClnt.AddCannedPolicy(context.Background(), "get-only", &p); err != nil {
log.Fatalln(err)
}

50
pkg/madmin/examples/get-service-account.go
View File

@@ -1,50 +0,0 @@
// +build ignore
/*
* MinIO Cloud Storage, (C) 2020 MinIO, Inc.
*
* 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 main
import (
"context"
"fmt"
"log"
"github.com/minio/minio/pkg/madmin"
)
func main() {
// Note: YOUR-ACCESSKEYID, YOUR-SECRETACCESSKEY are
// dummy values, please replace them with original values.
// Note: YOUR-ACCESSKEYID, YOUR-SECRETACCESSKEY are
// dummy values, please replace them with original values.
// API requests are secure (HTTPS) if secure=true and insecure (HTTP) otherwise.
// New returns an MinIO Admin client object.
madmClnt, err := madmin.New("your-minio.example.com:9000", "YOUR-ACCESSKEYID", "YOUR-SECRETACCESSKEY", true)
if err != nil {
log.Fatalln(err)
}
creds, err := madmClnt.GetServiceAccount(context.Background(), "service-account-access-key")
if err != nil {
log.Fatalln(err)
}
fmt.Println(creds)
}

4
pkg/madmin/policy-commands.go
View File

@@ -114,6 +114,10 @@ func (adm *AdminClient) AddCannedPolicy(ctx context.Context, policyName string,
return ErrInvalidArgument("policy input cannot be empty")
}
if err := policy.Validate(); err != nil {
return err
}
buf, err := json.Marshal(policy)
if err != nil {
return err

52
pkg/madmin/user-commands.go
View File

@@ -25,6 +25,7 @@ import (
"net/url"
"github.com/minio/minio/pkg/auth"
iampolicy "github.com/minio/minio/pkg/iam/policy"
)
// AccountStatus - account status.
@@ -214,8 +215,8 @@ func (adm *AdminClient) SetUserStatus(ctx context.Context, accessKey string, sta
// AddServiceAccountReq is the request body of the add service account admin call
type AddServiceAccountReq struct {
Parent string `json:"parent"`
Policy string `json:"policy"`
Parent string `json:"parent"`
Policy *iampolicy.Policy `json:"policy,omitempty"`
}
// AddServiceAccountResp is the response body of the add service account admin call
@@ -225,12 +226,17 @@ type AddServiceAccountResp struct {
// AddServiceAccount - creates a new service account belonging to the given parent user
// while restricting the service account permission by the given policy document.
func (adm *AdminClient) AddServiceAccount(ctx context.Context, parentUser string, policy string) (auth.Credentials, error) {
func (adm *AdminClient) AddServiceAccount(ctx context.Context, parentUser string, policy *iampolicy.Policy) (auth.Credentials, error) {
if !auth.IsAccessKeyValid(parentUser) {
return auth.Credentials{}, auth.ErrInvalidAccessKeyLength
}
if policy != nil {
if err := policy.Validate(); err != nil {
return auth.Credentials{}, err
}
}
data, err := json.Marshal(AddServiceAccountReq{
Parent: parentUser,
Policy: policy,
@@ -271,41 +277,3 @@ func (adm *AdminClient) AddServiceAccount(ctx context.Context, parentUser string
}
return serviceAccountResp.Credentials, nil
}
// GetServiceAccount returns the credential of the service account
func (adm *AdminClient) GetServiceAccount(ctx context.Context, serviceAccountAccessKey string) (auth.Credentials, error) {
if !auth.IsAccessKeyValid(serviceAccountAccessKey) {
return auth.Credentials{}, auth.ErrInvalidAccessKeyLength
}
queryValues := url.Values{}
queryValues.Set("accessKey", serviceAccountAccessKey)
reqData := requestData{
relPath: adminAPIPrefix + "/get-service-account",
queryValues: queryValues,
}
// Execute GET on /minio/admin/v3/get-service-account to set a user.
resp, err := adm.executeMethod(ctx, http.MethodGet, reqData)
defer closeResponse(resp)
if err != nil {
return auth.Credentials{}, err
}
if resp.StatusCode != http.StatusOK {
return auth.Credentials{}, httpRespToErrorResponse(resp)
}
data, err := DecryptData(adm.getSecretKey(), resp.Body)
if err != nil {
return auth.Credentials{}, err
}
var creds auth.Credentials
if err = json.Unmarshal(data, &creds); err != nil {
return auth.Credentials{}, err
}
return creds, nil
}