// 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 <http://www.gnu.org/licenses/>.
package main
import (
"fmt"
"strings"
"github.com/ethereum/go-ethereum/log"
)
// manageServers displays a list of servers the user can disconnect from, and an
// option to connect to new servers.
func (w *wizard) manageServers() {
// List all the servers we can disconnect, along with an entry to connect a new one
fmt.Println()
servers := w.conf.servers()
for i, server := range servers {
fmt.Printf(" %d. Disconnect %s\n", i+1, server)
}
fmt.Printf(" %d. Connect another server\n", len(w.conf.Servers)+1)
choice := w.readInt()
if choice < 0 || choice > len(w.conf.Servers)+1 {
log.Error("Invalid server choice, aborting")
return
}
// If the user selected an existing server, drop it
if choice <= len(w.conf.Servers) {
server := servers[choice-1]
client := w.servers[server]
delete(w.servers, server)
if client != nil {
client.Close()
}
delete(w.conf.Servers, server)
w.conf.flush()
log.Info("Disconnected existing server", "server", server)
w.networkStats()
return
}
// If the user requested connecting a new server, do it
if w.makeServer() != "" {
w.networkStats()
}
}
// makeServer reads a single line from stdin and interprets it as
// username:identity@hostname to connect to. It tries to establish a
// new SSH session and also executing some baseline validations.
//
// If connection succeeds, the server is added to the wizards configs!
func (w *wizard) makeServer() string {
fmt.Println()
fmt.Println("What is the remote server's address ([username[:identity]@]hostname[:port])?")
// Read and dial the server to ensure docker is present
input := w.readString()
client, err := dial(input, nil)
if err != nil {
log.Error("Server not ready for puppeth", "err", err)
return ""
}
// All checks passed, start tracking the server
w.servers[input] = client
w.conf.Servers[input] = client.pubkey
w.conf.flush()
return input
}
// selectServer lists the user all the currently known servers to choose from,
// also granting the option to add a new one.
func (w *wizard) selectServer() string {
// List the available server to the user and wait for a choice
fmt.Println()
fmt.Println("Which server do you want to interact with?")
servers := w.conf.servers()
for i, server := range servers {
fmt.Printf(" %d. %s\n", i+1, server)
}
fmt.Printf(" %d. Connect another server\n", len(w.conf.Servers)+1)
choice := w.readInt()
if choice < 0 || choice > len(w.conf.Servers)+1 {
log.Error("Invalid server choice, aborting")
return ""
}
// If the user requested connecting to a new server, go for it
if choice <= len(w.conf.Servers) {
return servers[choice-1]
}
return w.makeServer()
}
// manageComponents displays a list of network components the user can tear down
// and an option
func (w *wizard) manageComponents() {
// List all the components we can tear down, along with an entry to deploy a new one
fmt.Println()
var serviceHosts, serviceNames []string
for server, services := range w.services {
for _, service := range services {
serviceHosts = append(serviceHosts, server)
serviceNames = append(serviceNames, service)
fmt.Printf(" %d. Tear down %s on %s\n", len(serviceHosts), strings.Title(service), server)
}
}
fmt.Printf(" %d. Deploy new network component\n", len(serviceHosts)+1)
choice := w.readInt()
if choice < 0 || choice > len(serviceHosts)+1 {
log.Error("Invalid component choice, aborting")
return
}
// If the user selected an existing service, destroy it
if choice <= len(serviceHosts) {
// Figure out the service to destroy and execute it
service := serviceNames[choice-1]
server := serviceHosts[choice-1]
client := w.servers[server]
if out, err := tearDown(client, w.network, service, true); err != nil {
log.Error("Failed to tear down component", "err", err)
if len(out) > 0 {
fmt.Printf("%s\n", out)
}
return
}
// Clean up any references to it from out state
services := w.services[server]
for i, name := range services {
if name == service {
w.services[server] = append(services[:i], services[i+1:]...)
if len(w.services[server]) == 0 {
delete(w.services, server)
}
}
}
log.Info("Torn down existing component", "server", server, "service", service)
return
}
// If the user requested deploying a new component, do it
w.deployComponent()
}
// deployComponent displays a list of network components the user can deploy and
// guides through the process.
func (w *wizard) deployComponent() {
// Print all the things we can deploy and wait or user choice
fmt.Println()
fmt.Println("What would you like to deploy? (recommended order)")
fmt.Println(" 1. Ethstats - Network monitoring tool")
fmt.Println(" 2. Bootnode - Entry point of the network")
fmt.Println(" 3. Sealer - Full node minting new blocks")
fmt.Println(" 4. Explorer - Chain analysis webservice (ethash only)")
fmt.Println(" 5. Wallet - Browser wallet for quick sends")
fmt.Println(" 6. Faucet - Crypto faucet to give away funds")
fmt.Println(" 7. Dashboard - Website listing above web-services")
switch w.read() {
case "1":
w.deployEthstats()
case "2":
w.deployNode(true)
case "3":
w.deployNode(false)
case "4":
w.deployExplorer()
case "5":
w.deployWallet()
case "6":
w.deployFaucet()
case "7":
w.deployDashboard()
default:
log.Error("That's not something I can do")
}
}
