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// 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 (
"bytes"
"fmt"
"html/template"
"math/rand"
"path/filepath"
"strconv"
"strings"
"github.com/ethereum/go-ethereum/log"
)
// walletDockerfile is the Dockerfile required to run a web wallet.
var walletDockerfile = `
FROM puppeth/wallet:latest
ADD genesis.json /genesis.json
RUN \
echo 'node server.js &' > wallet.sh && \
echo 'geth --cache 512 init /genesis.json' >> wallet.sh && \
echo $'geth --networkid {{.NetworkID}} --port {{.NodePort}} --bootnodes {{.Bootnodes}} --ethstats \'{{.Ethstats}}\' --cache=512 --rpc --rpcaddr=0.0.0.0 --rpccorsdomain "*" --rpcvhosts "*"' >> wallet.sh
RUN \
sed -i 's/PuppethNetworkID/{{.NetworkID}}/g' dist/js/etherwallet-master.js && \
sed -i 's/PuppethNetwork/{{.Network}}/g' dist/js/etherwallet-master.js && \
sed -i 's/PuppethDenom/{{.Denom}}/g' dist/js/etherwallet-master.js && \
sed -i 's/PuppethHost/{{.Host}}/g' dist/js/etherwallet-master.js && \
sed -i 's/PuppethRPCPort/{{.RPCPort}}/g' dist/js/etherwallet-master.js
ENTRYPOINT ["/bin/sh", "wallet.sh"]
`
// walletComposefile is the docker-compose.yml file required to deploy and
// maintain a web wallet.
var walletComposefile = `
version: '2'
services:
wallet:
build: .
image: {{.Network}}/wallet
ports:
- "{{.NodePort}}:{{.NodePort}}"
- "{{.NodePort}}:{{.NodePort}}/udp"
- "{{.RPCPort}}:8545"{{if not .VHost}}
- "{{.WebPort}}:80"{{end}}
volumes:
- {{.Datadir}}:/root/.ethereum
environment:
- NODE_PORT={{.NodePort}}/tcp
- STATS={{.Ethstats}}{{if .VHost}}
- VIRTUAL_HOST={{.VHost}}
- VIRTUAL_PORT=80{{end}}
logging:
driver: "json-file"
options:
max-size: "1m"
max-file: "10"
restart: always
`
// deployWallet deploys a new web wallet container to a remote machine via SSH,
// docker and docker-compose. If an instance with the specified network name
// already exists there, it will be overwritten!
func deployWallet(client *sshClient, network string, bootnodes []string, config *walletInfos, nocache bool) ([]byte, error) {
// Generate the content to upload to the server
workdir := fmt.Sprintf("%d", rand.Int63())
files := make(map[string][]byte)
dockerfile := new(bytes.Buffer)
template.Must(template.New("").Parse(walletDockerfile)).Execute(dockerfile, map[string]interface{}{
"Network": strings.ToTitle(network),
"Denom": strings.ToUpper(network),
"NetworkID": config.network,
"NodePort": config.nodePort,
"RPCPort": config.rpcPort,
"Bootnodes": strings.Join(bootnodes, ","),
"Ethstats": config.ethstats,
"Host": client.address,
})
files[filepath.Join(workdir, "Dockerfile")] = dockerfile.Bytes()
composefile := new(bytes.Buffer)
template.Must(template.New("").Parse(walletComposefile)).Execute(composefile, map[string]interface{}{
"Datadir": config.datadir,
"Network": network,
"NodePort": config.nodePort,
"RPCPort": config.rpcPort,
"VHost": config.webHost,
"WebPort": config.webPort,
"Ethstats": config.ethstats[:strings.Index(config.ethstats, ":")],
})
files[filepath.Join(workdir, "docker-compose.yaml")] = composefile.Bytes()
files[filepath.Join(workdir, "genesis.json")] = config.genesis
// Upload the deployment files to the remote server (and clean up afterwards)
if out, err := client.Upload(files); err != nil {
return out, err
}
defer client.Run("rm -rf " + workdir)
// Build and deploy the boot or seal node service
if nocache {
return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s build --pull --no-cache && docker-compose -p %s up -d --force-recreate", workdir, network, network))
}
return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build --force-recreate", workdir, network))
}
// walletInfos is returned from a web wallet status check to allow reporting
// various configuration parameters.
type walletInfos struct {
genesis []byte
network int64
datadir string
ethstats string
nodePort int
rpcPort int
webHost string
webPort int
}
// Report converts the typed struct into a plain string->string map, containing
// most - but not all - fields for reporting to the user.
func (info *walletInfos) Report() map[string]string {
report := map[string]string{
"Data directory": info.datadir,
"Ethstats username": info.ethstats,
"Node listener port ": strconv.Itoa(info.nodePort),
"RPC listener port ": strconv.Itoa(info.rpcPort),
"Website address ": info.webHost,
"Website listener port ": strconv.Itoa(info.webPort),
}
return report
}
// checkWallet does a health-check against web wallet server to verify whether
// it's running, and if yes, whether it's responsive.
func checkWallet(client *sshClient, network string) (*walletInfos, error) {
// Inspect a possible web wallet container on the host
infos, err := inspectContainer(client, fmt.Sprintf("%s_wallet_1", network))
if err != nil {
return nil, err
}
if !infos.running {
return nil, ErrServiceOffline
}
// Resolve the port from the host, or the reverse proxy
webPort := infos.portmap["80/tcp"]
if webPort == 0 {
if proxy, _ := checkNginx(client, network); proxy != nil {
webPort = proxy.port
}
}
if webPort == 0 {
return nil, ErrNotExposed
}
// Resolve the host from the reverse-proxy and the config values
host := infos.envvars["VIRTUAL_HOST"]
if host == "" {
host = client.server
}
// Run a sanity check to see if the devp2p and RPC ports are reachable
nodePort := infos.portmap[infos.envvars["NODE_PORT"]]
if err = checkPort(client.server, nodePort); err != nil {
log.Warn(fmt.Sprintf("Wallet devp2p port seems unreachable"), "server", client.server, "port", nodePort, "err", err)
}
rpcPort := infos.portmap["8545/tcp"]
if err = checkPort(client.server, rpcPort); err != nil {
log.Warn(fmt.Sprintf("Wallet RPC port seems unreachable"), "server", client.server, "port", rpcPort, "err", err)
}
// Assemble and return the useful infos
stats := &walletInfos{
datadir: infos.volumes["/root/.ethereum"],
nodePort: nodePort,
rpcPort: rpcPort,
webHost: host,
webPort: webPort,
ethstats: infos.envvars["STATS"],
}
return stats, nil
}
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