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server.go
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server.go
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package server
import (
"fmt"
"github.com/esportzvio/frietorchain/command"
"github.com/esportzvio/frietorchain/command/helper"
"github.com/esportzvio/frietorchain/command/server/config"
"github.com/esportzvio/frietorchain/command/server/export"
"github.com/esportzvio/frietorchain/server"
"github.com/spf13/cobra"
)
func GetCommand() *cobra.Command {
serverCmd := &cobra.Command{
Use: "server",
Short: "The default command that starts the Frietor Saar client, by bootstrapping all modules together",
PreRunE: runPreRun,
Run: runCommand,
}
helper.RegisterGRPCAddressFlag(serverCmd)
helper.RegisterLegacyGRPCAddressFlag(serverCmd)
helper.RegisterJSONRPCFlag(serverCmd)
registerSubcommands(serverCmd)
setFlags(serverCmd)
return serverCmd
}
func registerSubcommands(baseCmd *cobra.Command) {
baseCmd.AddCommand(
// server export
export.GetCommand(),
)
}
func setFlags(cmd *cobra.Command) {
defaultConfig := config.DefaultConfig()
cmd.Flags().StringVar(
¶ms.rawConfig.LogLevel,
command.LogLevelFlag,
defaultConfig.LogLevel,
"the log level for console output",
)
cmd.Flags().StringVar(
¶ms.rawConfig.GenesisPath,
genesisPathFlag,
defaultConfig.GenesisPath,
"the genesis file used for starting the chain",
)
cmd.Flags().StringVar(
¶ms.configPath,
configFlag,
"",
"the path to the CLI config. Supports .json, .hcl, .yaml, .yml",
)
cmd.Flags().StringVar(
¶ms.rawConfig.DataDir,
dataDirFlag,
defaultConfig.DataDir,
"the data directory used for storing Frietor Saar client data",
)
cmd.Flags().StringVar(
¶ms.rawConfig.Network.Libp2pAddr,
libp2pAddressFlag,
"0.0.0.0:30301",
"the address and port for the libp2p service",
)
cmd.Flags().StringVar(
¶ms.rawConfig.Telemetry.PrometheusAddr,
prometheusAddressFlag,
"0.0.0.0:10002",
"the address and port for the prometheus instrumentation service (address:port). "+
"If only port is defined (:port) it will bind to 0.0.0.0:port",
)
cmd.Flags().StringVar(
¶ms.rawConfig.Network.NatAddr,
natFlag,
"",
"the external IP address without port, as can be seen by peers",
)
cmd.Flags().StringVar(
¶ms.rawConfig.Network.DNSAddr,
dnsFlag,
"",
"the host DNS address which can be used by a remote peer for connection",
)
cmd.Flags().StringVar(
¶ms.rawConfig.BlockGasTarget,
blockGasTargetFlag,
defaultConfig.BlockGasTarget,
"the target block gas limit for the chain. If omitted, the value of the parent block is used",
)
cmd.Flags().StringVar(
¶ms.rawConfig.SecretsConfigPath,
secretsConfigFlag,
"",
"the path to the SecretsManager config file. Used for Hashicorp Vault. "+
"If omitted, the local FS secrets manager is used",
)
cmd.Flags().StringVar(
¶ms.rawConfig.RestoreFile,
restoreFlag,
"",
"the path to the archive blockchain data to restore on initialization",
)
cmd.Flags().BoolVar(
¶ms.rawConfig.ShouldSeal,
sealFlag,
defaultConfig.ShouldSeal,
"the flag indicating that the client should seal blocks",
)
cmd.Flags().BoolVar(
¶ms.rawConfig.Network.NoDiscover,
command.NoDiscoverFlag,
defaultConfig.Network.NoDiscover,
"prevent the client from discovering other peers",
)
cmd.Flags().Int64Var(
¶ms.rawConfig.Network.MaxPeers,
maxPeersFlag,
-1,
"the client's max number of peers allowed",
)
// override default usage value
cmd.Flag(maxPeersFlag).DefValue = fmt.Sprintf("%d", defaultConfig.Network.MaxPeers)
cmd.Flags().Int64Var(
¶ms.rawConfig.Network.MaxInboundPeers,
maxInboundPeersFlag,
-1,
"the client's max number of inbound peers allowed",
)
// override default usage value
cmd.Flag(maxInboundPeersFlag).DefValue = fmt.Sprintf("%d", defaultConfig.Network.MaxInboundPeers)
cmd.MarkFlagsMutuallyExclusive(maxPeersFlag, maxInboundPeersFlag)
cmd.Flags().Int64Var(
¶ms.rawConfig.Network.MaxOutboundPeers,
maxOutboundPeersFlag,
-1,
"the client's max number of outbound peers allowed",
)
// override default usage value
cmd.Flag(maxOutboundPeersFlag).DefValue = fmt.Sprintf("%d", defaultConfig.Network.MaxOutboundPeers)
cmd.MarkFlagsMutuallyExclusive(maxPeersFlag, maxOutboundPeersFlag)
cmd.Flags().Uint64Var(
¶ms.rawConfig.TxPool.PriceLimit,
priceLimitFlag,
defaultConfig.TxPool.PriceLimit,
fmt.Sprintf(
"the minimum gas price limit to enforce for acceptance into the pool (default %d)",
defaultConfig.TxPool.PriceLimit,
),
)
cmd.Flags().Uint64Var(
¶ms.rawConfig.TxPool.MaxSlots,
maxSlotsFlag,
defaultConfig.TxPool.MaxSlots,
"maximum slots in the pool",
)
cmd.Flags().Uint64Var(
¶ms.rawConfig.TxPool.MaxAccountEnqueued,
maxEnqueuedFlag,
defaultConfig.TxPool.MaxAccountEnqueued,
"maximum number of enqueued transactions per account",
)
cmd.Flags().StringArrayVar(
¶ms.rawConfig.CorsAllowedOrigins,
corsOriginFlag,
defaultConfig.Headers.AccessControlAllowOrigins,
"the CORS header indicating whether any JSON-RPC response can be shared with the specified origin",
)
cmd.Flags().Uint64Var(
¶ms.rawConfig.JSONRPCBatchRequestLimit,
jsonRPCBatchRequestLimitFlag,
10000,
"max length to be considered when handling json-rpc batch requests, value of 0 disables it",
)
cmd.Flags().Uint64Var(
¶ms.rawConfig.JSONRPCBlockRangeLimit,
jsonRPCBlockRangeLimitFlag,
10000,
"max block range to be considered when executing json-rpc requests "+
"that consider fromBlock/toBlock values (e.g. eth_getLogs), value of 0 disables it",
)
cmd.Flags().StringVar(
¶ms.rawConfig.LogFilePath,
logFileLocationFlag,
defaultConfig.LogFilePath,
"write all logs to the file at specified location instead of writing them to console",
)
cmd.Flags().BoolVar(
¶ms.rawConfig.Relayer,
relayerFlag,
defaultConfig.Relayer,
"start the state sync relayer service (PolyBFT only)",
)
cmd.Flags().Uint64Var(
¶ms.rawConfig.NumBlockConfirmations,
numBlockConfirmationsFlag,
64,
"minimal number of child blocks required for the parent block to be considered final",
)
setLegacyFlags(cmd)
setDevFlags(cmd)
}
// setLegacyFlags sets the legacy flags to preserve backwards compatibility
// with running partners
func setLegacyFlags(cmd *cobra.Command) {
// Legacy IBFT base timeout flag
cmd.Flags().Uint64Var(
¶ms.ibftBaseTimeoutLegacy,
ibftBaseTimeoutFlagLEGACY,
0,
"",
)
_ = cmd.Flags().MarkHidden(ibftBaseTimeoutFlagLEGACY)
}
func setDevFlags(cmd *cobra.Command) {
cmd.Flags().BoolVar(
¶ms.isDevMode,
devFlag,
false,
"should the client start in dev mode (default false)",
)
_ = cmd.Flags().MarkHidden(devFlag)
cmd.Flags().Uint64Var(
¶ms.devInterval,
devIntervalFlag,
0,
"the client's dev notification interval in seconds (default 1)",
)
_ = cmd.Flags().MarkHidden(devIntervalFlag)
}
func runPreRun(cmd *cobra.Command, _ []string) error {
// Set the grpc and json ip:port bindings
// The config file will have precedence over --flag
params.setRawGRPCAddress(helper.GetGRPCAddress(cmd))
params.setRawJSONRPCAddress(helper.GetJSONRPCAddress(cmd))
params.setJSONLogFormat(helper.GetJSONLogFormat(cmd))
// Check if the config file has been specified
// Config file settings will override JSON-RPC and GRPC address values
if isConfigFileSpecified(cmd) {
if err := params.initConfigFromFile(); err != nil {
return err
}
}
if err := params.initRawParams(); err != nil {
return err
}
return nil
}
func isConfigFileSpecified(cmd *cobra.Command) bool {
return cmd.Flags().Changed(configFlag)
}
func runCommand(cmd *cobra.Command, _ []string) {
outputter := command.InitializeOutputter(cmd)
if err := runServerLoop(params.generateConfig(), outputter); err != nil {
outputter.SetError(err)
outputter.WriteOutput()
return
}
}
func runServerLoop(
config *server.Config,
outputter command.OutputFormatter,
) error {
serverInstance, err := server.NewServer(config)
if err != nil {
return err
}
return helper.HandleSignals(serverInstance.Close, outputter)
}