// Copyright 2017 The go-ethereum Authors // This file is part of go-ethereum. // // go-ethereum is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // go-ethereum 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 General Public License for more details. // // You should have received a copy of the GNU General Public License // along with go-ethereum. If not, see . package main import ( "encoding/json" "fmt" "time" "github.com/ethereum/go-ethereum/accounts/keystore" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/log" ) // deployNode creates a new node configuration based on some user input. func (w *wizard) deployNode(boot bool) { // Do some sanity check before the user wastes time on input if w.conf.genesis == nil { log.Error("No genesis block configured") return } if w.conf.ethstats == "" { log.Error("No ethstats server configured") return } // Select the server to interact with server := w.selectServer() if server == "" { return } client := w.servers[server] // Retrieve any active node configurations from the server infos, err := checkNode(client, w.network, boot) if err != nil { if boot { infos = &nodeInfos{portFull: 30303, peersTotal: 512, peersLight: 256} } else { infos = &nodeInfos{portFull: 30303, peersTotal: 50, peersLight: 0, gasTarget: 4.7, gasPrice: 18} } } infos.genesis, _ = json.MarshalIndent(w.conf.genesis, "", " ") infos.network = w.conf.genesis.Config.ChainId.Int64() // Figure out where the user wants to store the persistent data fmt.Println() if infos.datadir == "" { fmt.Printf("Where should data be stored on the remote machine?\n") infos.datadir = w.readString() } else { fmt.Printf("Where should data be stored on the remote machine? (default = %s)\n", infos.datadir) infos.datadir = w.readDefaultString(infos.datadir) } if w.conf.genesis.Config.Ethash != nil && !boot { fmt.Println() if infos.ethashdir == "" { fmt.Printf("Where should the ethash mining DAGs be stored on the remote machine?\n") infos.ethashdir = w.readString() } else { fmt.Printf("Where should the ethash mining DAGs be stored on the remote machine? (default = %s)\n", infos.ethashdir) infos.ethashdir = w.readDefaultString(infos.ethashdir) } } // Figure out which port to listen on fmt.Println() fmt.Printf("Which TCP/UDP port to listen on? (default = %d)\n", infos.portFull) infos.portFull = w.readDefaultInt(infos.portFull) // Figure out how many peers to allow (different based on node type) fmt.Println() fmt.Printf("How many peers to allow connecting? (default = %d)\n", infos.peersTotal) infos.peersTotal = w.readDefaultInt(infos.peersTotal) // Figure out how many light peers to allow (different based on node type) fmt.Println() fmt.Printf("How many light peers to allow connecting? (default = %d)\n", infos.peersLight) infos.peersLight = w.readDefaultInt(infos.peersLight) // Set a proper name to report on the stats page fmt.Println() if infos.ethstats == "" { fmt.Printf("What should the node be called on the stats page?\n") infos.ethstats = w.readString() + ":" + w.conf.ethstats } else { fmt.Printf("What should the node be called on the stats page? (default = %s)\n", infos.ethstats) infos.ethstats = w.readDefaultString(infos.ethstats) + ":" + w.conf.ethstats } // If the node is a miner/signer, load up needed credentials if !boot { if w.conf.genesis.Config.Ethash != nil { // Ethash based miners only need an etherbase to mine against fmt.Println() if infos.etherbase == "" { fmt.Printf("What address should the miner user?\n") for { if address := w.readAddress(); address != nil { infos.etherbase = address.Hex() break } } } else { fmt.Printf("What address should the miner user? (default = %s)\n", infos.etherbase) infos.etherbase = w.readDefaultAddress(common.HexToAddress(infos.etherbase)).Hex() } } else if w.conf.genesis.Config.Clique != nil { // If a previous signer was already set, offer to reuse it if infos.keyJSON != "" { if key, err := keystore.DecryptKey([]byte(infos.keyJSON), infos.keyPass); err != nil { infos.keyJSON, infos.keyPass = "", "" } else { fmt.Println() fmt.Printf("Reuse previous (%s) signing account (y/n)? (default = yes)\n", key.Address.Hex()) if w.readDefaultString("y") != "y" { infos.keyJSON, infos.keyPass = "", "" } } } // Clique based signers need a keyfile and unlock password, ask if unavailable if infos.keyJSON == "" { fmt.Println() fmt.Println("Please paste the signer's key JSON:") infos.keyJSON = w.readJSON() fmt.Println() fmt.Println("What's the unlock password for the account? (won't be echoed)") infos.keyPass = w.readPassword() if _, err := keystore.DecryptKey([]byte(infos.keyJSON), infos.keyPass); err != nil { log.Error("Failed to decrypt key with given passphrase") return } } } // Establish the gas dynamics to be enforced by the signer fmt.Println() fmt.Printf("What gas limit should empty blocks target (MGas)? (default = %0.3f)\n", infos.gasTarget) infos.gasTarget = w.readDefaultFloat(infos.gasTarget) fmt.Println() fmt.Printf("What gas price should the signer require (GWei)? (default = %0.3f)\n", infos.gasPrice) infos.gasPrice = w.readDefaultFloat(infos.gasPrice) } // Try to deploy the full node on the host fmt.Println() fmt.Printf("Should the node be built from scratch (y/n)? (default = no)\n") nocache := w.readDefaultString("n") != "n" if out, err := deployNode(client, w.network, w.conf.bootFull, w.conf.bootLight, infos, nocache); err != nil { log.Error("Failed to deploy Ethereum node container", "err", err) if len(out) > 0 { fmt.Printf("%s\n", out) } return } // All ok, run a network scan to pick any changes up log.Info("Waiting for node to finish booting") time.Sleep(3 * time.Second) w.networkStats() }