forked from openshift/origin
/
main.go
166 lines (137 loc) · 4.44 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
package main
import (
_ "expvar"
"flag"
"fmt"
"net/http"
_ "net/http/pprof"
"os"
log "github.com/Sirupsen/logrus"
"github.com/bugsnag/bugsnag-go"
"github.com/docker/distribution/configuration"
ctxu "github.com/docker/distribution/context"
_ "github.com/docker/distribution/registry/auth/silly"
_ "github.com/docker/distribution/registry/auth/token"
"github.com/docker/distribution/registry/handlers"
_ "github.com/docker/distribution/registry/storage/driver/filesystem"
_ "github.com/docker/distribution/registry/storage/driver/inmemory"
_ "github.com/docker/distribution/registry/storage/driver/middleware/cloudfront"
_ "github.com/docker/distribution/registry/storage/driver/s3"
"github.com/docker/distribution/version"
gorhandlers "github.com/gorilla/handlers"
"github.com/yvasiyarov/gorelic"
"golang.org/x/net/context"
)
var showVersion bool
func init() {
flag.BoolVar(&showVersion, "version", false, "show the version and exit")
}
func main() {
flag.Usage = usage
flag.Parse()
if showVersion {
version.PrintVersion()
return
}
ctx := context.Background()
config, err := resolveConfiguration()
if err != nil {
fatalf("configuration error: %v", err)
}
log.SetLevel(logLevel(config.Loglevel))
ctx = context.WithValue(ctx, "version", version.Version)
ctx = ctxu.WithLogger(ctx, ctxu.GetLogger(ctx, "version"))
app := handlers.NewApp(ctx, *config)
handler := configureReporting(app)
handler = gorhandlers.CombinedLoggingHandler(os.Stdout, handler)
if config.HTTP.Debug.Addr != "" {
go debugServer(config.HTTP.Debug.Addr)
}
if config.HTTP.TLS.Certificate == "" {
ctxu.GetLogger(app).Infof("listening on %v", config.HTTP.Addr)
if err := http.ListenAndServe(config.HTTP.Addr, handler); err != nil {
ctxu.GetLogger(app).Fatalln(err)
}
} else {
ctxu.GetLogger(app).Infof("listening on %v, tls", config.HTTP.Addr)
if err := http.ListenAndServeTLS(config.HTTP.Addr, config.HTTP.TLS.Certificate, config.HTTP.TLS.Key, handler); err != nil {
ctxu.GetLogger(app).Fatalln(err)
}
}
}
func usage() {
fmt.Fprintln(os.Stderr, "usage:", os.Args[0], "<config>")
flag.PrintDefaults()
}
func fatalf(format string, args ...interface{}) {
fmt.Fprintf(os.Stderr, format+"\n", args...)
usage()
os.Exit(1)
}
func resolveConfiguration() (*configuration.Configuration, error) {
var configurationPath string
if flag.NArg() > 0 {
configurationPath = flag.Arg(0)
} else if os.Getenv("REGISTRY_CONFIGURATION_PATH") != "" {
configurationPath = os.Getenv("REGISTRY_CONFIGURATION_PATH")
}
if configurationPath == "" {
return nil, fmt.Errorf("configuration path unspecified")
}
fp, err := os.Open(configurationPath)
if err != nil {
return nil, err
}
config, err := configuration.Parse(fp)
if err != nil {
return nil, fmt.Errorf("error parsing %s: %v", configurationPath, err)
}
return config, nil
}
func logLevel(level configuration.Loglevel) log.Level {
l, err := log.ParseLevel(string(level))
if err != nil {
log.Warnf("error parsing level %q: %v", level, err)
l = log.InfoLevel
}
return l
}
func configureReporting(app *handlers.App) http.Handler {
var handler http.Handler = app
if app.Config.Reporting.Bugsnag.APIKey != "" {
bugsnagConfig := bugsnag.Configuration{
APIKey: app.Config.Reporting.Bugsnag.APIKey,
// TODO(brianbland): provide the registry version here
// AppVersion: "2.0",
}
if app.Config.Reporting.Bugsnag.ReleaseStage != "" {
bugsnagConfig.ReleaseStage = app.Config.Reporting.Bugsnag.ReleaseStage
}
if app.Config.Reporting.Bugsnag.Endpoint != "" {
bugsnagConfig.Endpoint = app.Config.Reporting.Bugsnag.Endpoint
}
bugsnag.Configure(bugsnagConfig)
handler = bugsnag.Handler(handler)
}
if app.Config.Reporting.NewRelic.LicenseKey != "" {
agent := gorelic.NewAgent()
agent.NewrelicLicense = app.Config.Reporting.NewRelic.LicenseKey
if app.Config.Reporting.NewRelic.Name != "" {
agent.NewrelicName = app.Config.Reporting.NewRelic.Name
}
agent.CollectHTTPStat = true
agent.Verbose = true
agent.Run()
handler = agent.WrapHTTPHandler(handler)
}
return handler
}
// debugServer starts the debug server with pprof, expvar among other
// endpoints. The addr should not be exposed externally. For most of these to
// work, tls cannot be enabled on the endpoint, so it is generally separate.
func debugServer(addr string) {
log.Infof("debug server listening %v", addr)
if err := http.ListenAndServe(addr, nil); err != nil {
log.Fatalf("error listening on debug interface: %v", err)
}
}