2017-05-13 10:24:58 +02:00

95 lines
2.9 KiB
Go

package commands
import (
"fmt"
"io/ioutil"
"time"
"github.com/spf13/cobra"
"github.com/tendermint/tendermint/node"
"github.com/tendermint/tendermint/types"
cmn "github.com/tendermint/tmlibs/common"
)
var runNodeCmd = &cobra.Command{
Use: "node",
Short: "Run the tendermint node",
RunE: runNode,
}
func init() {
// bind flags
runNodeCmd.Flags().String("moniker", config.Moniker, "Node Name")
// node flags
runNodeCmd.Flags().Bool("fast_sync", config.FastSync, "Fast blockchain syncing")
// abci flags
runNodeCmd.Flags().String("proxy_app", config.ProxyApp, "Proxy app address, or 'nilapp' or 'dummy' for local testing.")
runNodeCmd.Flags().String("abci", config.ABCI, "Specify abci transport (socket | grpc)")
// rpc flags
runNodeCmd.Flags().String("rpc_laddr", config.RPCListenAddress, "RPC listen address. Port required")
runNodeCmd.Flags().String("grpc_laddr", config.GRPCListenAddress, "GRPC listen address (BroadcastTx only). Port required")
// p2p flags
runNodeCmd.Flags().String("p2p.laddr", config.P2P.ListenAddress, "Node listen address. (0.0.0.0:0 means any interface, any port)")
runNodeCmd.Flags().String("p2p.seeds", config.P2P.Seeds, "Comma delimited host:port seed nodes")
runNodeCmd.Flags().Bool("p2p.skip_upnp", config.P2P.SkipUPNP, "Skip UPNP configuration")
// feature flags
runNodeCmd.Flags().Bool("p2p.pex", config.P2P.PexReactor, "Enable Peer-Exchange (dev feature)")
RootCmd.AddCommand(runNodeCmd)
}
// Users wishing to:
// * Use an external signer for their validators
// * Supply an in-proc abci app
// should import github.com/tendermint/tendermint/node and implement
// their own run_node to call node.NewNode (instead of node.NewNodeDefault)
// with their custom priv validator and/or custom proxy.ClientCreator
func runNode(cmd *cobra.Command, args []string) error {
// Wait until the genesis doc becomes available
// This is for Mintnet compatibility.
// TODO: If Mintnet gets deprecated or genesis_file is
// always available, remove.
genDocFile := config.GenesisFile()
if !cmn.FileExists(genDocFile) {
logger.Info(cmn.Fmt("Waiting for genesis file %v...", genDocFile))
for {
time.Sleep(time.Second)
if !cmn.FileExists(genDocFile) {
continue
}
jsonBlob, err := ioutil.ReadFile(genDocFile)
if err != nil {
return fmt.Errorf("Couldn't read GenesisDoc file: %v", err)
}
genDoc, err := types.GenesisDocFromJSON(jsonBlob)
if err != nil {
return fmt.Errorf("Error reading GenesisDoc: %v", err)
}
if genDoc.ChainID == "" {
return fmt.Errorf("Genesis doc %v must include non-empty chain_id", genDocFile)
}
config.ChainID = genDoc.ChainID
}
}
// Create & start node
n := node.NewNodeDefault(config, logger.With("module", "node"))
if _, err := n.Start(); err != nil {
return fmt.Errorf("Failed to start node: %v", err)
} else {
logger.Info("Started node", "nodeInfo", n.Switch().NodeInfo())
}
// Trap signal, run forever.
n.RunForever()
return nil
}