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package weed_server
import (
"net/http"
"os"
"time"
"github.com/chrislusf/seaweedfs/weed/util"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/push"
"google.golang.org/grpc"
"github.com/chrislusf/seaweedfs/weed/filer2"
_ "github.com/chrislusf/seaweedfs/weed/filer2/cassandra"
_ "github.com/chrislusf/seaweedfs/weed/filer2/leveldb"
_ "github.com/chrislusf/seaweedfs/weed/filer2/memdb"
_ "github.com/chrislusf/seaweedfs/weed/filer2/mysql"
_ "github.com/chrislusf/seaweedfs/weed/filer2/postgres"
_ "github.com/chrislusf/seaweedfs/weed/filer2/redis"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/notification"
_ "github.com/chrislusf/seaweedfs/weed/notification/aws_sqs"
_ "github.com/chrislusf/seaweedfs/weed/notification/gocdk_pub_sub"
_ "github.com/chrislusf/seaweedfs/weed/notification/google_pub_sub"
_ "github.com/chrislusf/seaweedfs/weed/notification/kafka"
_ "github.com/chrislusf/seaweedfs/weed/notification/log"
"github.com/chrislusf/seaweedfs/weed/security"
"github.com/spf13/viper"
)
type FilerOption struct {
Masters []string
Collection string
DefaultReplication string
RedirectOnRead bool
DisableDirListing bool
MaxMB int
DirListingLimit int
DataCenter string
DefaultLevelDbDir string
DisableHttp bool
MetricsAddress string
MetricsIntervalSec int
}
type FilerServer struct {
option *FilerOption
secret security.SigningKey
filer *filer2.Filer
grpcDialOption grpc.DialOption
}
func NewFilerServer(defaultMux, readonlyMux *http.ServeMux, option *FilerOption) (fs *FilerServer, err error) {
fs = &FilerServer{
option: option,
grpcDialOption: security.LoadClientTLS(viper.Sub("grpc"), "filer"),
}
if len(option.Masters) == 0 {
glog.Fatal("master list is required!")
}
fs.filer = filer2.NewFiler(option.Masters, fs.grpcDialOption)
go fs.filer.KeepConnectedToMaster()
v := viper.GetViper()
if !util.LoadConfiguration("filer", false) {
v.Set("leveldb.enabled", true)
v.Set("leveldb.dir", option.DefaultLevelDbDir)
_, err := os.Stat(option.DefaultLevelDbDir)
if os.IsNotExist(err) {
os.MkdirAll(option.DefaultLevelDbDir, 0755)
}
}
util.LoadConfiguration("notification", false)
fs.filer.LoadConfiguration(v)
notification.LoadConfiguration(v.Sub("notification"))
handleStaticResources(defaultMux)
if !option.DisableHttp {
defaultMux.HandleFunc("/", fs.filerHandler)
}
if defaultMux != readonlyMux {
readonlyMux.HandleFunc("/", fs.readonlyFilerHandler)
}
startPushingMetric(option.MetricsAddress, option.MetricsIntervalSec)
return fs, nil
}
func startPushingMetric(addr string, intervalSeconds int) {
if intervalSeconds == 0 || addr == "" {
glog.V(0).Info("disable metrics reporting")
return
}
glog.V(0).Infof("push metrics to %s every %d seconds", addr, intervalSeconds)
go loopPushMetrics(addr, intervalSeconds)
}
func loopPushMetrics(addr string, intervalSeconds int) {
pusher := push.New(addr, "filer").Gatherer(prometheus.DefaultGatherer)
for {
err := pusher.Push()
if err != nil {
glog.V(0).Infof("could not push metrics to prometheus push gateway %s: %v", addr, err)
}
time.Sleep(time.Duration(intervalSeconds) * time.Second)
}
}
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