1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
package iamapi
// https://docs.aws.amazon.com/cli/latest/reference/iam/list-roles.html
import (
"bytes"
"context"
"encoding/json"
"fmt"
"net/http"
"github.com/gorilla/mux"
"github.com/seaweedfs/seaweedfs/weed/credential"
"github.com/seaweedfs/seaweedfs/weed/filer"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/pb"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"github.com/seaweedfs/seaweedfs/weed/pb/iam_pb"
"github.com/seaweedfs/seaweedfs/weed/s3api"
"github.com/seaweedfs/seaweedfs/weed/s3api/policy_engine"
. "github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
"github.com/seaweedfs/seaweedfs/weed/s3api/s3err"
"github.com/seaweedfs/seaweedfs/weed/util"
"github.com/seaweedfs/seaweedfs/weed/wdclient"
"google.golang.org/grpc"
)
type IamS3ApiConfig interface {
GetS3ApiConfiguration(s3cfg *iam_pb.S3ApiConfiguration) (err error)
PutS3ApiConfiguration(s3cfg *iam_pb.S3ApiConfiguration) (err error)
GetPolicies(policies *Policies) (err error)
PutPolicies(policies *Policies) (err error)
}
type IamS3ApiConfigure struct {
option *IamServerOption
masterClient *wdclient.MasterClient
credentialManager *credential.CredentialManager
}
type IamServerOption struct {
Masters map[string]pb.ServerAddress
Filers []pb.ServerAddress
Port int
GrpcDialOption grpc.DialOption
}
type IamApiServer struct {
s3ApiConfig IamS3ApiConfig
iam *s3api.IdentityAccessManagement
shutdownContext context.Context
shutdownCancel context.CancelFunc
masterClient *wdclient.MasterClient
}
var s3ApiConfigure IamS3ApiConfig
func NewIamApiServer(router *mux.Router, option *IamServerOption) (iamApiServer *IamApiServer, err error) {
return NewIamApiServerWithStore(router, option, "")
}
func NewIamApiServerWithStore(router *mux.Router, option *IamServerOption, explicitStore string) (iamApiServer *IamApiServer, err error) {
if len(option.Filers) == 0 {
return nil, fmt.Errorf("at least one filer address is required")
}
masterClient := wdclient.NewMasterClient(option.GrpcDialOption, "", "iam", "", "", "", *pb.NewServiceDiscoveryFromMap(option.Masters))
// Create a cancellable context for the master client connection
// This allows graceful shutdown via Shutdown() method
shutdownCtx, shutdownCancel := context.WithCancel(context.Background())
// Start KeepConnectedToMaster for volume location lookups
// IAM config files are typically small and inline, but if they ever have chunks,
// ReadEntry→StreamContent needs masterClient for volume lookups
glog.V(0).Infof("IAM API starting master client connection for volume location lookups")
go masterClient.KeepConnectedToMaster(shutdownCtx)
configure := &IamS3ApiConfigure{
option: option,
masterClient: masterClient,
}
s3ApiConfigure = configure
s3Option := s3api.S3ApiServerOption{
Filers: option.Filers,
GrpcDialOption: option.GrpcDialOption,
}
iam := s3api.NewIdentityAccessManagementWithStore(&s3Option, explicitStore)
configure.credentialManager = iam.GetCredentialManager()
iamApiServer = &IamApiServer{
s3ApiConfig: s3ApiConfigure,
iam: iam,
shutdownContext: shutdownCtx,
shutdownCancel: shutdownCancel,
masterClient: masterClient,
}
iamApiServer.registerRouter(router)
return iamApiServer, nil
}
func (iama *IamApiServer) registerRouter(router *mux.Router) {
// API Router
apiRouter := router.PathPrefix("/").Subrouter()
// ListBuckets
// apiRouter.Methods("GET").Path("/").HandlerFunc(track(s3a.iam.Auth(s3a.ListBucketsHandler, ACTION_ADMIN), "LIST"))
apiRouter.Methods(http.MethodPost).Path("/").HandlerFunc(iama.iam.Auth(iama.DoActions, ACTION_ADMIN))
//
// NotFound
apiRouter.NotFoundHandler = http.HandlerFunc(s3err.NotFoundHandler)
}
// Shutdown gracefully stops the IAM API server and releases resources.
// It cancels the master client connection goroutine and closes gRPC connections.
// This method is safe to call multiple times.
//
// Note: This method is called via defer in weed/command/iam.go for best-effort cleanup.
// For proper graceful shutdown on SIGTERM/SIGINT, signal handling should be added to
// the command layer to call this method before process exit.
func (iama *IamApiServer) Shutdown() {
if iama.shutdownCancel != nil {
glog.V(0).Infof("IAM API server shutting down, stopping master client connection")
iama.shutdownCancel()
}
}
func (iama *IamS3ApiConfigure) GetS3ApiConfiguration(s3cfg *iam_pb.S3ApiConfiguration) (err error) {
return iama.GetS3ApiConfigurationFromCredentialManager(s3cfg)
}
func (iama *IamS3ApiConfigure) PutS3ApiConfiguration(s3cfg *iam_pb.S3ApiConfiguration) (err error) {
return iama.PutS3ApiConfigurationToCredentialManager(s3cfg)
}
func (iama *IamS3ApiConfigure) GetS3ApiConfigurationFromCredentialManager(s3cfg *iam_pb.S3ApiConfiguration) (err error) {
config, err := iama.credentialManager.LoadConfiguration(context.Background())
if err != nil {
return fmt.Errorf("failed to load configuration from credential manager: %w", err)
}
*s3cfg = *config
return nil
}
func (iama *IamS3ApiConfigure) PutS3ApiConfigurationToCredentialManager(s3cfg *iam_pb.S3ApiConfiguration) (err error) {
return iama.credentialManager.SaveConfiguration(context.Background(), s3cfg)
}
func (iama *IamS3ApiConfigure) GetS3ApiConfigurationFromFiler(s3cfg *iam_pb.S3ApiConfiguration) (err error) {
var buf bytes.Buffer
err = pb.WithOneOfGrpcFilerClients(false, iama.option.Filers, iama.option.GrpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
if err = filer.ReadEntry(iama.masterClient, client, filer.IamConfigDirectory, filer.IamIdentityFile, &buf); err != nil {
return err
}
return nil
})
if err != nil {
return err
}
if buf.Len() > 0 {
if err = filer.ParseS3ConfigurationFromBytes(buf.Bytes(), s3cfg); err != nil {
return err
}
}
return nil
}
func (iama *IamS3ApiConfigure) PutS3ApiConfigurationToFiler(s3cfg *iam_pb.S3ApiConfiguration) (err error) {
buf := bytes.Buffer{}
if err := filer.ProtoToText(&buf, s3cfg); err != nil {
return fmt.Errorf("ProtoToText: %s", err)
}
return pb.WithOneOfGrpcFilerClients(false, iama.option.Filers, iama.option.GrpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
err = util.Retry("saveIamIdentity", func() error {
return filer.SaveInsideFiler(client, filer.IamConfigDirectory, filer.IamIdentityFile, buf.Bytes())
})
if err != nil {
return err
}
return nil
})
}
func (iama *IamS3ApiConfigure) GetPolicies(policies *Policies) (err error) {
var buf bytes.Buffer
err = pb.WithOneOfGrpcFilerClients(false, iama.option.Filers, iama.option.GrpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
if err = filer.ReadEntry(iama.masterClient, client, filer.IamConfigDirectory, filer.IamPoliciesFile, &buf); err != nil {
return err
}
return nil
})
if err != nil && err != filer_pb.ErrNotFound {
return err
}
if err == filer_pb.ErrNotFound || buf.Len() == 0 {
policies.Policies = make(map[string]policy_engine.PolicyDocument)
return nil
}
if err := json.Unmarshal(buf.Bytes(), policies); err != nil {
return err
}
return nil
}
func (iama *IamS3ApiConfigure) PutPolicies(policies *Policies) (err error) {
var b []byte
if b, err = json.Marshal(policies); err != nil {
return err
}
return pb.WithOneOfGrpcFilerClients(false, iama.option.Filers, iama.option.GrpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
if err := filer.SaveInsideFiler(client, filer.IamConfigDirectory, filer.IamPoliciesFile, b); err != nil {
return err
}
return nil
})
}
|
