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86f6568f66
* build: enable unconvert linter - fixes #15453 - update code base for failing cases * cmd/puppeth: replace syscall.Stdin with os.Stdin.Fd() for unconvert linter
233 lines
8.5 KiB
Go
233 lines
8.5 KiB
Go
// Copyright 2017 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// go-ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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package main
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import (
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"bytes"
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"fmt"
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"html/template"
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"math/rand"
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"path/filepath"
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"strconv"
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"strings"
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"github.com/ethereum/go-ethereum/log"
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)
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// faucetDockerfile is the Dockerfile required to build an faucet container to
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// grant crypto tokens based on GitHub authentications.
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var faucetDockerfile = `
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FROM alpine:latest
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RUN mkdir /go
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ENV GOPATH /go
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RUN \
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apk add --update git go make gcc musl-dev ca-certificates linux-headers && \
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mkdir -p $GOPATH/src/github.com/ethereum && \
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(cd $GOPATH/src/github.com/ethereum && git clone --depth=1 https://github.com/ethereum/go-ethereum) && \
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go build -v github.com/ethereum/go-ethereum/cmd/faucet && \
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apk del git go make gcc musl-dev linux-headers && \
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rm -rf $GOPATH && rm -rf /var/cache/apk/*
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ADD genesis.json /genesis.json
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ADD account.json /account.json
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ADD account.pass /account.pass
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EXPOSE 8080
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CMD [ \
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"/faucet", "--genesis", "/genesis.json", "--network", "{{.NetworkID}}", "--bootnodes", "{{.Bootnodes}}", "--ethstats", "{{.Ethstats}}", "--ethport", "{{.EthPort}}", \
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"--faucet.name", "{{.FaucetName}}", "--faucet.amount", "{{.FaucetAmount}}", "--faucet.minutes", "{{.FaucetMinutes}}", "--faucet.tiers", "{{.FaucetTiers}}", \
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"--github.user", "{{.GitHubUser}}", "--github.token", "{{.GitHubToken}}", "--account.json", "/account.json", "--account.pass", "/account.pass" \
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{{if .CaptchaToken}}, "--captcha.token", "{{.CaptchaToken}}", "--captcha.secret", "{{.CaptchaSecret}}"{{end}} \
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]`
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// faucetComposefile is the docker-compose.yml file required to deploy and maintain
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// a crypto faucet.
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var faucetComposefile = `
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version: '2'
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services:
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faucet:
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build: .
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image: {{.Network}}/faucet
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ports:
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- "{{.EthPort}}:{{.EthPort}}"{{if not .VHost}}
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- "{{.ApiPort}}:8080"{{end}}
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volumes:
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- {{.Datadir}}:/root/.faucet
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environment:
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- ETH_PORT={{.EthPort}}
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- ETH_NAME={{.EthName}}
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- FAUCET_AMOUNT={{.FaucetAmount}}
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- FAUCET_MINUTES={{.FaucetMinutes}}
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- FAUCET_TIERS={{.FaucetTiers}}
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- GITHUB_USER={{.GitHubUser}}
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- GITHUB_TOKEN={{.GitHubToken}}
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- CAPTCHA_TOKEN={{.CaptchaToken}}
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- CAPTCHA_SECRET={{.CaptchaSecret}}{{if .VHost}}
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- VIRTUAL_HOST={{.VHost}}
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- VIRTUAL_PORT=8080{{end}}
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logging:
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driver: "json-file"
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options:
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max-size: "1m"
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max-file: "10"
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restart: always
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`
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// deployFaucet deploys a new faucet container to a remote machine via SSH,
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// docker and docker-compose. If an instance with the specified network name
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// already exists there, it will be overwritten!
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func deployFaucet(client *sshClient, network string, bootnodes []string, config *faucetInfos) ([]byte, error) {
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// Generate the content to upload to the server
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workdir := fmt.Sprintf("%d", rand.Int63())
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files := make(map[string][]byte)
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dockerfile := new(bytes.Buffer)
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template.Must(template.New("").Parse(faucetDockerfile)).Execute(dockerfile, map[string]interface{}{
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"NetworkID": config.node.network,
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"Bootnodes": strings.Join(bootnodes, ","),
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"Ethstats": config.node.ethstats,
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"EthPort": config.node.portFull,
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"GitHubUser": config.githubUser,
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"GitHubToken": config.githubToken,
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"CaptchaToken": config.captchaToken,
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"CaptchaSecret": config.captchaSecret,
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"FaucetName": strings.Title(network),
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"FaucetAmount": config.amount,
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"FaucetMinutes": config.minutes,
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"FaucetTiers": config.tiers,
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})
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files[filepath.Join(workdir, "Dockerfile")] = dockerfile.Bytes()
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composefile := new(bytes.Buffer)
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template.Must(template.New("").Parse(faucetComposefile)).Execute(composefile, map[string]interface{}{
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"Network": network,
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"Datadir": config.node.datadir,
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"VHost": config.host,
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"ApiPort": config.port,
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"EthPort": config.node.portFull,
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"EthName": config.node.ethstats[:strings.Index(config.node.ethstats, ":")],
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"GitHubUser": config.githubUser,
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"GitHubToken": config.githubToken,
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"CaptchaToken": config.captchaToken,
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"CaptchaSecret": config.captchaSecret,
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"FaucetAmount": config.amount,
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"FaucetMinutes": config.minutes,
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"FaucetTiers": config.tiers,
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})
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files[filepath.Join(workdir, "docker-compose.yaml")] = composefile.Bytes()
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files[filepath.Join(workdir, "genesis.json")] = config.node.genesis
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files[filepath.Join(workdir, "account.json")] = []byte(config.node.keyJSON)
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files[filepath.Join(workdir, "account.pass")] = []byte(config.node.keyPass)
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// Upload the deployment files to the remote server (and clean up afterwards)
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if out, err := client.Upload(files); err != nil {
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return out, err
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}
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defer client.Run("rm -rf " + workdir)
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// Build and deploy the faucet service
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return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build", workdir, network))
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}
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// faucetInfos is returned from an faucet status check to allow reporting various
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// configuration parameters.
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type faucetInfos struct {
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node *nodeInfos
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host string
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port int
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amount int
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minutes int
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tiers int
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githubUser string
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githubToken string
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captchaToken string
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captchaSecret string
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}
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// String implements the stringer interface.
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func (info *faucetInfos) String() string {
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return fmt.Sprintf("host=%s, api=%d, eth=%d, amount=%d, minutes=%d, tiers=%d, github=%s, captcha=%v, ethstats=%s", info.host, info.port, info.node.portFull, info.amount, info.minutes, info.tiers, info.githubUser, info.captchaToken != "", info.node.ethstats)
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}
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// checkFaucet does a health-check against an faucet server to verify whether
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// it's running, and if yes, gathering a collection of useful infos about it.
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func checkFaucet(client *sshClient, network string) (*faucetInfos, error) {
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// Inspect a possible faucet container on the host
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infos, err := inspectContainer(client, fmt.Sprintf("%s_faucet_1", network))
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if err != nil {
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return nil, err
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}
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if !infos.running {
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return nil, ErrServiceOffline
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}
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// Resolve the port from the host, or the reverse proxy
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port := infos.portmap["8080/tcp"]
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if port == 0 {
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if proxy, _ := checkNginx(client, network); proxy != nil {
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port = proxy.port
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}
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}
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if port == 0 {
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return nil, ErrNotExposed
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}
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// Resolve the host from the reverse-proxy and the config values
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host := infos.envvars["VIRTUAL_HOST"]
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if host == "" {
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host = client.server
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}
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amount, _ := strconv.Atoi(infos.envvars["FAUCET_AMOUNT"])
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minutes, _ := strconv.Atoi(infos.envvars["FAUCET_MINUTES"])
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tiers, _ := strconv.Atoi(infos.envvars["FAUCET_TIERS"])
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// Retrieve the funding account informations
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var out []byte
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keyJSON, keyPass := "", ""
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if out, err = client.Run(fmt.Sprintf("docker exec %s_faucet_1 cat /account.json", network)); err == nil {
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keyJSON = string(bytes.TrimSpace(out))
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}
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if out, err = client.Run(fmt.Sprintf("docker exec %s_faucet_1 cat /account.pass", network)); err == nil {
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keyPass = string(bytes.TrimSpace(out))
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}
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// Run a sanity check to see if the port is reachable
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if err = checkPort(host, port); err != nil {
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log.Warn("Faucet service seems unreachable", "server", host, "port", port, "err", err)
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}
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// Container available, assemble and return the useful infos
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return &faucetInfos{
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node: &nodeInfos{
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datadir: infos.volumes["/root/.faucet"],
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portFull: infos.portmap[infos.envvars["ETH_PORT"]+"/tcp"],
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ethstats: infos.envvars["ETH_NAME"],
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keyJSON: keyJSON,
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keyPass: keyPass,
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},
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host: host,
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port: port,
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amount: amount,
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minutes: minutes,
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tiers: tiers,
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githubUser: infos.envvars["GITHUB_USER"],
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githubToken: infos.envvars["GITHUB_TOKEN"],
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captchaToken: infos.envvars["CAPTCHA_TOKEN"],
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captchaSecret: infos.envvars["CAPTCHA_SECRET"],
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}, nil
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}
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