/
main.go
140 lines (123 loc) · 3.38 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
package main
import (
"context"
"errors"
"fmt"
"math/rand"
"net/http"
"os"
"os/signal"
"syscall"
"time"
"cloud.google.com/go/firestore"
"contrib.go.opencensus.io/exporter/stackdriver"
"contrib.go.opencensus.io/exporter/stackdriver/monitoredresource"
"github.com/go-semantic-release/plugin-registry/internal/config"
"github.com/go-semantic-release/plugin-registry/internal/metrics"
"github.com/go-semantic-release/plugin-registry/internal/plugin"
"github.com/go-semantic-release/plugin-registry/internal/server"
"github.com/sirupsen/logrus"
)
var version = "dev"
func setupLogger() *logrus.Logger {
log := logrus.New()
if os.Getenv("DEBUG") == "true" {
log.SetFormatter(&logrus.TextFormatter{
FullTimestamp: true,
})
} else {
log.SetFormatter(&logrus.JSONFormatter{
FieldMap: logrus.FieldMap{
logrus.FieldKeyLevel: "severity",
logrus.FieldKeyMsg: "message",
logrus.FieldKeyTime: "timestamp",
},
})
}
return log
}
func run(log *logrus.Logger) error {
log.Infof("starting plugin-registry (version=%s)", version)
log.Info("reading configuration...")
cfg, err := config.NewServerConfigFromEnv()
if err != nil {
return err
}
// set global version
cfg.Version = version
if cfg.DisableRequestCache {
log.Warn("request cache disabled")
}
if !cfg.DisableMetrics {
ocTaskID := fmt.Sprintf("plugin-registry-%d", rand.Int())
log.Infof("setting up metrics exporter (opencensus_task=%s)...", ocTaskID)
labels := &stackdriver.Labels{}
labels.Set("version", cfg.Version, "version of the plugin-registry")
labels.Set("stage", cfg.Stage, "stage of the plugin-registry")
labels.Set("opencensus_task", ocTaskID, "Opencensus task identifier")
exporter, eErr := metrics.NewExporter(stackdriver.Options{
ProjectID: cfg.ProjectID,
MetricPrefix: "plugin-registry",
OnError: func(err error) {
log.Warnf("exporter error: %v", err)
},
DefaultMonitoringLabels: labels,
MonitoredResource: monitoredresource.Autodetect(),
})
if eErr != nil {
return eErr
}
defer exporter.Flush()
defer exporter.StopMetricsExporter()
} else {
log.Warn("metrics disabled")
}
log.Infof("connecting to database (stage=%s)...", cfg.Stage)
// set global collection prefix
plugin.CollectionPrefix = cfg.Stage
db, err := firestore.NewClient(context.Background(), cfg.ProjectID)
if err != nil {
return err
}
log.Info("setting up S3 client...")
s3Client, err := cfg.CreateS3Client()
if err != nil {
return err
}
srv := &http.Server{
Addr: cfg.GetServerAddr(),
Handler: server.New(log, db, cfg.CreateGitHubClient(), s3Client, cfg),
}
go func() {
log.Printf("listening on %s", srv.Addr)
if err := srv.ListenAndServe(); err != http.ErrServerClosed {
log.Error(err)
}
}()
ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
<-ctx.Done()
stop()
log.Info("closing database...")
if err := db.Close(); err != nil {
log.Error(err)
}
log.Info("stopping server...")
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
if err := srv.Shutdown(ctx); errors.Is(err, context.DeadlineExceeded) {
log.Info("closing server...")
if closeErr := srv.Close(); closeErr != nil {
return closeErr
}
} else if err != nil {
return err
}
log.Info("server stopped!")
return nil
}
func main() {
log := setupLogger()
if err := run(log); err != nil {
log.Fatal(err)
}
}