/
server_factory.go
108 lines (90 loc) · 2.89 KB
/
server_factory.go
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package server
import (
"context"
"net/http"
"github.com/gin-contrib/cors"
"github.com/gin-gonic/gin"
"github.com/jackc/pgx/v4/pgxpool"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/tensorchord/openmodelz/agent/pkg/query"
ginlogrus "github.com/toorop/gin-logrus"
"github.com/tensorchord/openmodelz/agent/pkg/config"
"github.com/tensorchord/openmodelz/agent/pkg/event"
"github.com/tensorchord/openmodelz/agent/pkg/k8s"
"github.com/tensorchord/openmodelz/agent/pkg/log"
"github.com/tensorchord/openmodelz/agent/pkg/metrics"
"github.com/tensorchord/openmodelz/agent/pkg/prom"
"github.com/tensorchord/openmodelz/agent/pkg/runtime"
"github.com/tensorchord/openmodelz/agent/pkg/scaling"
"github.com/tensorchord/openmodelz/agent/pkg/server/validator"
)
type Server struct {
router *gin.Engine
metricsRouter *gin.Engine
logger *logrus.Entry
validator *validator.Validator
runtime runtime.Runtime
// endpointResolver resolves the requests from the client to the
// corresponding inference kubernetes service.
endpointResolver k8s.Resolver
buildLogRequester log.Requester
deploymentLogRequester log.Requester
// prometheusClient is the client to query the prometheus server.
// It is used in inference list.
prometheusClient prom.PrometheusQuery
metricsOptions metrics.MetricOptions
// scaler scales the inference from 0 to 1.
scaler *scaling.InferenceScaler
config config.Config
eventRecorder event.Interface
}
func New(c config.Config) (Server, error) {
router := gin.New()
router.Use(ginlogrus.Logger(logrus.StandardLogger()))
router.Use(gin.Recovery())
// metrics server
metricsRouter := gin.New()
metricsRouter.Use(gin.Recovery())
if gin.Mode() == gin.DebugMode {
logrus.SetLevel(logrus.DebugLevel)
logrus.Debug("Allow CORS")
router.Use(cors.New(cors.Config{
AllowOrigins: []string{"*"},
AllowMethods: []string{"GET", "POST", "PUT", "PATCH", "DELETE"},
AllowHeaders: []string{"*"},
}))
}
promCli := prom.NewPrometheusQuery(c.Metrics.PrometheusHost, c.Metrics.PrometheusPort, http.DefaultClient)
logger := logrus.WithField("component", "server")
s := Server{
router: router,
metricsRouter: metricsRouter,
config: c,
logger: logger,
validator: validator.New(),
prometheusClient: promCli,
}
if s.config.DB.EventEnabled {
logrus.Info("Event recording is enabled")
// Connect to database
conn, err := pgxpool.Connect(context.Background(), c.DB.URL)
if err != nil {
return s, errors.Wrap(err, "failed to connect to database")
}
queries := query.New(conn)
s.eventRecorder = event.NewEventRecorder(queries)
} else {
s.eventRecorder = event.NewFake()
}
s.registerRoutes()
s.registerMetricsRoutes()
if err := s.initKubernetesResources(); err != nil {
return s, err
}
if err := s.initMetrics(); err != nil {
return s, err
}
s.initLogs()
return s, nil
}