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Open-IM-Server/internal/api/init.go

112 lines
3.2 KiB

// Copyright © 2023 OpenIM. All rights reserved.
//
// 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 api
import (
"context"
"fmt"
"github.com/openimsdk/open-im-server/v3/pkg/common/config"
"github.com/openimsdk/tools/utils/datautil"
"github.com/openimsdk/tools/utils/network"
"net"
"net/http"
"os"
"os/signal"
"strconv"
"syscall"
"time"
kdisc "github.com/openimsdk/open-im-server/v3/pkg/common/discoveryregister"
ginprom "github.com/openimsdk/open-im-server/v3/pkg/common/ginprometheus"
"github.com/openimsdk/open-im-server/v3/pkg/common/prommetrics"
"github.com/openimsdk/tools/discovery"
"github.com/openimsdk/tools/errs"
"github.com/openimsdk/tools/log"
"github.com/openimsdk/tools/system/program"
)
type Config struct {
API config.API
Share config.Share
Discovery config.Discovery
}
func Start(ctx context.Context, index int, config *Config) error {
apiPort, err := datautil.GetElemByIndex(config.API.Api.Ports, index)
if err != nil {
return err
}
prometheusPort, err := datautil.GetElemByIndex(config.API.Prometheus.Ports, index)
if err != nil {
return err
}
var client discovery.SvcDiscoveryRegistry
// Determine whether zk is passed according to whether it is a clustered deployment
client, err = kdisc.NewDiscoveryRegister(&config.Discovery, &config.Share)
if err != nil {
return errs.WrapMsg(err, "failed to register discovery service")
}
var (
netDone = make(chan struct{}, 1)
netErr error
)
router := newGinRouter(client, config)
if config.API.Prometheus.Enable {
go func() {
p := ginprom.NewPrometheus("app", prommetrics.GetGinCusMetrics("Api"))
p.SetListenAddress(fmt.Sprintf(":%d", prometheusPort))
if err = p.Use(router); err != nil && err != http.ErrServerClosed {
netErr = errs.WrapMsg(err, fmt.Sprintf("prometheus start err: %d", prometheusPort))
netDone <- struct{}{}
}
}()
}
address := net.JoinHostPort(network.GetListenIP(config.API.Api.ListenIP), strconv.Itoa(apiPort))
server := http.Server{Addr: address, Handler: router}
log.CInfo(ctx, "API server is initializing", "address", address, "apiPort", apiPort, "prometheusPort", prometheusPort)
go func() {
err = server.ListenAndServe()
if err != nil && err != http.ErrServerClosed {
netErr = errs.WrapMsg(err, fmt.Sprintf("api start err: %s", server.Addr))
netDone <- struct{}{}
}
}()
sigs := make(chan os.Signal, 1)
signal.Notify(sigs, syscall.SIGTERM)
ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
defer cancel()
select {
case <-sigs:
program.SIGTERMExit()
err := server.Shutdown(ctx)
if err != nil {
return errs.WrapMsg(err, "shutdown err")
}
case <-netDone:
close(netDone)
return netErr
}
return nil
}