-
Notifications
You must be signed in to change notification settings - Fork 0
/
main.go
200 lines (175 loc) · 5.67 KB
/
main.go
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
// Copyright 2016 IBM Corporation
//
// 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 (
"fmt"
"os"
"github.com/Sirupsen/logrus"
"github.com/codegangsta/cli"
"github.com/amalgam8/amalgam8/pkg/auth"
"github.com/amalgam8/amalgam8/registry/api"
"github.com/amalgam8/amalgam8/registry/cluster"
"github.com/amalgam8/amalgam8/registry/config"
"github.com/amalgam8/amalgam8/registry/replication"
"github.com/amalgam8/amalgam8/registry/store"
"github.com/amalgam8/amalgam8/registry/store/filesystem"
"github.com/amalgam8/amalgam8/registry/store/kubernetes"
"github.com/amalgam8/amalgam8/registry/utils/i18n"
"github.com/amalgam8/amalgam8/registry/utils/logging"
"github.com/amalgam8/amalgam8/registry/utils/metrics"
"github.com/amalgam8/amalgam8/registry/utils/network"
"github.com/amalgam8/amalgam8/registry/utils/version"
)
func main() {
app := cli.NewApp()
app.Name = "registry"
app.Usage = "Service Registry Server"
app.Version = version.Build.Version
app.Flags = config.Flags
app.Action = registryCommand
err := app.Run(os.Args)
if err != nil {
fmt.Printf("failure running main: %s", err.Error())
}
}
func registryCommand(context *cli.Context) {
err := registryMain(config.NewValuesFromContext(context))
if err != nil {
// Unfortunately, cannot return an error without violating cli.App Action function definition
fmt.Printf("Error starting registry: %s\n", err.Error())
}
}
// registryMain is the logical entry point for the service registry.
func registryMain(conf *config.Values) error {
// Configure logging
parsedLogLevel, err := logrus.ParseLevel(conf.LogLevel)
if err != nil {
return err
}
logrus.SetLevel(parsedLogLevel)
formatter, err := logging.GetLogFormatter(conf.LogFormat)
if err != nil {
return err
}
logrus.SetFormatter(formatter)
// Configure locales and translations
err = i18n.LoadLocales("./locales")
if err != nil {
return err
}
// Redis store requires an address and password
if conf.Store == "redis" {
if conf.StoreAddr == "" {
return fmt.Errorf("Address required for Redis store")
}
}
var rep replication.Replication
// Don't need replication if using a store that's not in memory
if conf.Store == "inmem" {
if conf.Replication {
// Wait for private network to become available
// In some cloud environments, that may take several seconds
networkAvailable := network.WaitForPrivateNetwork()
if !networkAvailable {
return fmt.Errorf("No private network is available within defined timeout")
}
// Configure and create the cluster module
clConfig := &cluster.Config{
BackendType: cluster.FilesystemBackend,
Directory: conf.ClusterDirectory,
Size: conf.ClusterSize,
}
cl, err := cluster.New(clConfig)
if err != nil {
return fmt.Errorf("Failed to create the cluster module: %s", err)
}
// Configure and create the replication module
self := cluster.NewMember(network.GetPrivateIP(), conf.ReplicationPort)
repConfig := &replication.Config{
Membership: cl.Membership(),
Registrator: cl.Registrator(self),
}
rep, err = replication.New(repConfig)
if err != nil {
return fmt.Errorf("Failed to create the replication module: %s", err)
}
}
}
var authenticator auth.Authenticator
if len(conf.AuthModes) > 0 {
auths := make([]auth.Authenticator, len(conf.AuthModes))
for i, mode := range conf.AuthModes {
switch mode {
case "trusted":
auths[i] = auth.NewTrustedAuthenticator()
case "jwt":
jwtAuth, err := auth.NewJWTAuthenticator([]byte(conf.JWTSecret))
if err != nil {
return fmt.Errorf("Failed to create the authentication module: %s", err)
}
auths[i] = jwtAuth
default:
return fmt.Errorf("Failed to create the authentication module: unrecognized authentication mode '%s'", err)
}
}
authenticator, err = auth.NewChainAuthenticator(auths)
if err != nil {
return err
}
} else {
authenticator = auth.DefaultAuthenticator()
}
catalogsExt := []store.CatalogFactory{}
// See whether kubernetes catalog is enabled
if conf.K8sURL != "" {
k8sFactory, err := kubernetes.New(&kubernetes.K8sConfig{K8sURL: conf.K8sURL, K8sToken: conf.K8sToken})
if err != nil {
return err
}
catalogsExt = append(catalogsExt, k8sFactory)
}
// See whether FileSystem catalog is enabled
if conf.FSCatalog != "" {
fsFactory, err := filesystem.New(&filesystem.Config{Dir: conf.FSCatalog})
if err != nil {
return err
}
catalogsExt = append(catalogsExt, fsFactory)
}
cmConfig := &store.Config{
DefaultTTL: conf.DefaultTTL,
MinimumTTL: conf.MinTTL,
MaximumTTL: conf.MaxTTL,
SyncWaitTime: conf.SyncTimeout,
NamespaceCapacity: conf.NamespaceCapacity,
Replication: rep,
Extensions: catalogsExt,
Store: conf.Store,
StoreAddr: conf.StoreAddr,
StorePassword: conf.StorePassword,
}
cm := store.New(cmConfig)
serverConfig := &api.Config{
HTTPAddressSpec: fmt.Sprintf(":%d", conf.APIPort),
CatalogMap: cm,
Authenticator: authenticator,
RequireHTTPS: conf.RequireHTTPS,
}
server, err := api.NewServer(serverConfig)
if err != nil {
return err
}
go metrics.DumpPeriodically()
return server.Start()
}