github.com/n1ghtfa1l/go-vnt@v0.6.4-alpha.6/cmd/puppeth/wizard_node.go (about)

     1  // Copyright 2017 The go-ethereum Authors
     2  // This file is part of go-ethereum.
     3  //
     4  // go-ethereum is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // go-ethereum is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU General Public License
    15  // along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package main
    18  
    19  import (
    20  	"encoding/json"
    21  	"fmt"
    22  	"time"
    23  
    24  	"github.com/vntchain/go-vnt/log"
    25  )
    26  
    27  // deployNode creates a new node configuration based on some user input.
    28  func (w *wizard) deployNode(boot bool) {
    29  	// Do some sanity check before the user wastes time on input
    30  	if w.conf.Genesis == nil {
    31  		log.Error("No genesis block configured")
    32  		return
    33  	}
    34  	if w.conf.vntstats == "" {
    35  		log.Error("No vntstats server configured")
    36  		return
    37  	}
    38  	// Select the server to interact with
    39  	server := w.selectServer()
    40  	if server == "" {
    41  		return
    42  	}
    43  	client := w.servers[server]
    44  
    45  	// Retrieve any active node configurations from the server
    46  	infos, err := checkNode(client, w.network, boot)
    47  	if err != nil {
    48  		if boot {
    49  			infos = &nodeInfos{port: 30303, peersTotal: 512, peersLight: 256}
    50  		} else {
    51  			infos = &nodeInfos{port: 30303, peersTotal: 50, peersLight: 0, gasTarget: 4.7, gasPrice: 18}
    52  		}
    53  	}
    54  	existed := err == nil
    55  
    56  	infos.genesis, _ = json.MarshalIndent(w.conf.Genesis, "", "  ")
    57  	infos.network = w.conf.Genesis.Config.ChainID.Int64()
    58  
    59  	// Figure out where the user wants to store the persistent data
    60  	fmt.Println()
    61  	if infos.datadir == "" {
    62  		fmt.Printf("Where should data be stored on the remote machine?\n")
    63  		infos.datadir = w.readString()
    64  	} else {
    65  		fmt.Printf("Where should data be stored on the remote machine? (default = %s)\n", infos.datadir)
    66  		infos.datadir = w.readDefaultString(infos.datadir)
    67  	}
    68  	// Figure out which port to listen on
    69  	fmt.Println()
    70  	fmt.Printf("Which TCP/UDP port to listen on? (default = %d)\n", infos.port)
    71  	infos.port = w.readDefaultInt(infos.port)
    72  
    73  	// Figure out how many peers to allow (different based on node type)
    74  	fmt.Println()
    75  	fmt.Printf("How many peers to allow connecting? (default = %d)\n", infos.peersTotal)
    76  	infos.peersTotal = w.readDefaultInt(infos.peersTotal)
    77  
    78  	// Figure out how many light peers to allow (different based on node type)
    79  	fmt.Println()
    80  	fmt.Printf("How many light peers to allow connecting? (default = %d)\n", infos.peersLight)
    81  	infos.peersLight = w.readDefaultInt(infos.peersLight)
    82  
    83  	// Set a proper name to report on the stats page
    84  	fmt.Println()
    85  	if infos.vntstats == "" {
    86  		fmt.Printf("What should the node be called on the stats page?\n")
    87  		infos.vntstats = w.readString() + ":" + w.conf.vntstats
    88  	} else {
    89  		fmt.Printf("What should the node be called on the stats page? (default = %s)\n", infos.vntstats)
    90  		infos.vntstats = w.readDefaultString(infos.vntstats) + ":" + w.conf.vntstats
    91  	}
    92  	// If the node is a producer/signer, load up needed credentials
    93  	if !boot {
    94  		// Establish the gas dynamics to be enforced by the signer
    95  		fmt.Println()
    96  		fmt.Printf("What gas limit should empty blocks target (MGas)? (default = %0.3f)\n", infos.gasTarget)
    97  		infos.gasTarget = w.readDefaultFloat(infos.gasTarget)
    98  
    99  		fmt.Println()
   100  		fmt.Printf("What gas price should the signer require (GWei)? (default = %0.3f)\n", infos.gasPrice)
   101  		infos.gasPrice = w.readDefaultFloat(infos.gasPrice)
   102  	}
   103  	// Try to deploy the full node on the host
   104  	nocache := false
   105  	if existed {
   106  		fmt.Println()
   107  		fmt.Printf("Should the node be built from scratch (y/n)? (default = no)\n")
   108  		nocache = w.readDefaultString("n") != "n"
   109  	}
   110  	if out, err := deployNode(client, w.network, w.conf.bootnodes, infos, nocache); err != nil {
   111  		log.Error("Failed to deploy VNT node container", "err", err)
   112  		if len(out) > 0 {
   113  			fmt.Printf("%s\n", out)
   114  		}
   115  		return
   116  	}
   117  	// All ok, run a network scan to pick any changes up
   118  	log.Info("Waiting for node to finish booting")
   119  	time.Sleep(3 * time.Second)
   120  
   121  	w.networkStats()
   122  }