leveldb-ethdb-rpc/cmd/serve.go
2021-12-31 12:59:04 -06:00

129 lines
4.5 KiB
Go

// VulcanizeDB
// Copyright © 2022 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"os"
"os/signal"
"sync"
"github.com/ethereum/go-ethereum/rpc"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/spf13/viper"
leveldb_ethdb_rpc "github.com/vulcanize/leveldb-ethdb-rpc/pkg"
srpc "github.com/vulcanize/leveldb-ethdb-rpc/pkg/rpc"
"github.com/vulcanize/leveldb-ethdb-rpc/version"
)
var (
subCommand string
logWithCommand log.Entry
)
// serveCmd represents the serve command
var serveCmd = &cobra.Command{
Use: "serve",
Short: "RPC Server for LevelDB eth.Database",
Long: `This service exposes a remote RPC server interface for a local levelDB backed ethdb.Database`,
Run: func(cmd *cobra.Command, args []string) {
subCommand = cmd.CalledAs()
logWithCommand = *log.WithField("SubCommand", subCommand)
serve()
},
}
func serve() {
logWithCommand.Infof("running ipld-eth-server version: %s", version.VersionWithMeta)
wg := new(sync.WaitGroup)
logWithCommand.Debug("loading server configuration variables")
serverConfig, err := leveldb_ethdb_rpc.NewConfig()
if err != nil {
logWithCommand.Fatal(err)
}
logWithCommand.Infof("server config: %+v", serverConfig)
logWithCommand.Debug("initializing new server service")
server, err := leveldb_ethdb_rpc.NewServer(serverConfig)
if err != nil {
logWithCommand.Fatal(err)
}
logWithCommand.Info("starting up servers")
server.Serve(wg)
if err := startServers(server, serverConfig); err != nil {
logWithCommand.Fatal(err)
}
shutdown := make(chan os.Signal, 1)
signal.Notify(shutdown, os.Interrupt)
<-shutdown
server.Stop()
wg.Wait()
}
func startServers(server leveldb_ethdb_rpc.Server, settings *leveldb_ethdb_rpc.Config) error {
if settings.IPCEnabled {
logWithCommand.Info("starting up IPC server")
_, _, err := srpc.StartIPCEndpoint(settings.IPCEndpoint, server.APIs())
if err != nil {
return err
}
} else {
logWithCommand.Info("IPC server is disabled")
}
if settings.HTTPEnabled {
logWithCommand.Info("starting up HTTP server")
_, err := srpc.StartHTTPEndpoint(settings.HTTPEndpoint, server.APIs(), []string{"leveldb"}, nil, []string{"*"}, rpc.HTTPTimeouts{})
if err != nil {
return err
}
} else {
logWithCommand.Info("HTTP server is disabled")
}
return nil
}
func init() {
rootCmd.AddCommand(serveCmd)
// CLI flags
serveCmd.PersistentFlags().Bool("ipc-enabled", false, "turn on ipc server")
serveCmd.PersistentFlags().String("ipc-path", "", "ipc server endpoint")
serveCmd.PersistentFlags().Bool("http-enabled", true, "turn on http server; on by default")
serveCmd.PersistentFlags().String("http-path", "127.0.0.1:8500", "http server endpoint; default = 127.0.0.1:8545")
serveCmd.PersistentFlags().String("leveldb-path", "", "leveldb filesystem path")
serveCmd.PersistentFlags().Int("leveldb-cache-size", 0, "leveldb cache size")
serveCmd.PersistentFlags().String("leveldb-ancient-path", "", "filesystem path to freezer")
serveCmd.PersistentFlags().String("leveldb-namespace", "eth/db/chaindata/", "leveldb namespace")
// toml bindings
viper.BindPFlag(leveldb_ethdb_rpc.TOML_IPC_ENABLED, serveCmd.PersistentFlags().Lookup("ipc-enabled"))
viper.BindPFlag(leveldb_ethdb_rpc.TOML_IPC_ENDPOINT, serveCmd.PersistentFlags().Lookup("ipc-path"))
viper.BindPFlag(leveldb_ethdb_rpc.TOML_HTTP_ENABLED, serveCmd.PersistentFlags().Lookup("http-enabled"))
viper.BindPFlag(leveldb_ethdb_rpc.TOML_HTTP_ENDPOINT, serveCmd.PersistentFlags().Lookup("http-path"))
viper.BindPFlag(leveldb_ethdb_rpc.TOML_LEVELDB_PATH, serveCmd.PersistentFlags().Lookup("leveldb-path"))
viper.BindPFlag(leveldb_ethdb_rpc.TOML_LEVELDB_CACHE_SIZE, serveCmd.PersistentFlags().Lookup("leveldb-cache-size"))
viper.BindPFlag(leveldb_ethdb_rpc.TOML_LEVELDB_ANCIENT_PATH, serveCmd.PersistentFlags().Lookup("leveldb-ancient-path"))
viper.BindPFlag(leveldb_ethdb_rpc.TOML_LEVELDB_NAMESPACE, serveCmd.PersistentFlags().Lookup("leveldb-namespace"))
}