mirror of
https://github.com/ethereum/go-ethereum.git
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257 lines
7.5 KiB
Go
257 lines
7.5 KiB
Go
// Copyright 2018 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser 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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// The go-ethereum library 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 Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package stateth
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import (
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"encoding/json"
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"fmt"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/p2p"
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"github.com/ethereum/go-ethereum/rpc"
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gapi "github.com/teemupo/go-grafana-api"
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"gopkg.in/urfave/cli.v1"
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"io/ioutil"
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"os/exec"
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"path/filepath"
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"strings"
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"time"
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)
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const (
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influxDBAdminUser = "test" // admin username for InfluxDB.
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influxDBAdminPass = "test" // admin password for InfluxDB.
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grafanaUser = "admin" // default Grafana username - should not be changed here without first updating the docker image.
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grafanaPass = "admin" // default Grafana password - should not be changed here without first udpating the docker image.
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)
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// Stateth contains the stateth internals.
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type Stateth struct {
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ctx *cli.Context
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config *Config
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gclient *gapi.Client // Grafana client.
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}
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// New creates a new stateth instance with the given configuration.
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func New(ctx *cli.Context, config *Config) *Stateth {
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return &Stateth{
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ctx: ctx,
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config: config,
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}
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}
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// Protocols implements the node.Service interface.
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func (se *Stateth) Protocols() []p2p.Protocol { return nil }
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// APIs implements the node.Service interface.
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func (se *Stateth) APIs() []rpc.API { return nil }
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// Start starts InfluxDB and Grafana.
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// Implements the node.Service interface.
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func (se *Stateth) Start(server *p2p.Server) error {
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return se.StartExternal(true)
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}
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// Stop cleans up the containers.
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// Implements the node.Service interface.
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func (se *Stateth) Stop() error {
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return se.StopExternal()
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}
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func (se *Stateth) StartExternal(rm bool) error {
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var err error
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if rm {
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se.cleanupContainers()
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}
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if err = se.runNetwork(); err != nil {
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return err
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}
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if err = se.runInfluxDB(); err != nil {
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return err
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}
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if err = se.runGrafana(); err != nil {
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return err
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}
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log.Info("Waiting for Grafana to boot up...")
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time.Sleep(7 * time.Second) // give time to Grafana to boot up
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se.gclient, err = gapi.New(fmt.Sprintf("%s:%s", grafanaUser, grafanaPass), fmt.Sprintf("http://localhost:%d", se.config.GrafanaPort))
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if err != nil {
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log.Warn(err.Error())
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return nil
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}
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if err = se.importGrafanaDatasource(); err != nil {
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return err
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}
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if err = se.importGrafanaDashboards(); err != nil {
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return err
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}
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fmt.Println(fmt.Sprintf("Grafana listening on http://localhost:%d", se.config.GrafanaPort))
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fmt.Println(fmt.Sprintf("Username: %s", grafanaUser))
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fmt.Println(fmt.Sprintf("Password: %s", grafanaPass))
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fmt.Println()
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return nil
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}
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func (se *Stateth) StopExternal() error {
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se.cleanupContainers()
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return nil
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}
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func (se *Stateth) runNetwork() error {
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log.Info("Creating docker network", "network", se.config.DockerPrefix)
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command := strings.Split(fmt.Sprintf("docker network create %s", se.config.DockerPrefix), " ")
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r, err := exec.Command(command[0], command[1:]...).CombinedOutput()
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if err != nil {
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log.Error(string(r))
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return err
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}
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return nil
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}
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func (se *Stateth) runInfluxDB() error {
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log.Info("Pulling influxdb:1.5.2 docker image")
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command := strings.Split("docker pull influxdb:1.5.2", " ")
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r, err := exec.Command(command[0], command[1:]...).CombinedOutput()
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if err != nil {
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log.Error(err.Error())
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return err
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}
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log.Info("Running InfluxDB docker container", "container", fmt.Sprintf("%s_influxdb", se.config.DockerPrefix))
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command = strings.Split(fmt.Sprintf("docker run --network %s --name %s_influxdb -e INFLUXDB_DB=metrics -e INFLUXDB_ADMIN_USER=%s -e INFLUXDB_ADMIN_PASSWORD=%s -p %d:8086 -d influxdb:1.5.2", se.config.DockerPrefix, se.config.DockerPrefix, influxDBAdminUser, influxDBAdminPass, se.config.InfluxDBPort), " ")
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r, err = exec.Command(command[0], command[1:]...).CombinedOutput()
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if err != nil {
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log.Error(string(r))
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return err
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}
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return nil
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}
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func (se *Stateth) runGrafana() error {
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log.Info("Pulling grafana/grafana:5.1.3 docker image")
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command := strings.Split("docker pull grafana/grafana:5.1.3", " ")
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r, err := exec.Command(command[0], command[1:]...).CombinedOutput()
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if err != nil {
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log.Error(string(r))
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return err
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}
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log.Info("Running Grafana docker container", "container", fmt.Sprintf("%s_grafana", se.config.DockerPrefix))
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command = strings.Split(fmt.Sprintf("docker run --network %s --name=%s_grafana -e GF_AUTH_ANONYMOUS_ENABLED=true -p %d:3000 -d grafana/grafana:5.1.3", se.config.DockerPrefix, se.config.DockerPrefix, se.config.GrafanaPort), " ")
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r, err = exec.Command(command[0], command[1:]...).CombinedOutput()
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if err != nil {
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log.Error(string(r))
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return err
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}
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return nil
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}
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func (se *Stateth) cleanupContainers() {
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log.Info("Removing InfluxDB container")
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command := strings.Split(fmt.Sprintf("docker rm -f %s_influxdb", se.config.DockerPrefix), " ")
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r, err := exec.Command(command[0], command[1:]...).CombinedOutput()
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if err != nil {
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log.Warn(string(r))
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}
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log.Info("Removing Grafana container")
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command = strings.Split(fmt.Sprintf("docker rm -f %s_grafana", se.config.DockerPrefix), " ")
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r, err = exec.Command(command[0], command[1:]...).CombinedOutput()
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if err != nil {
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log.Warn(string(r))
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}
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log.Info("Removing network")
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command = strings.Split(fmt.Sprintf("docker network rm %s", se.config.DockerPrefix), " ")
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r, err = exec.Command(command[0], command[1:]...).CombinedOutput()
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if err != nil {
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log.Warn(string(r))
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}
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}
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func (se *Stateth) importGrafanaDatasource() error {
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log.Info("Importing Grafana datasource")
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dataSource := &gapi.DataSource{
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Name: "metrics",
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Type: "influxdb",
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URL: fmt.Sprintf("http://%s_influxdb:%d", se.config.DockerPrefix, se.config.InfluxDBPort),
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Access: "proxy",
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Database: "metrics",
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User: influxDBAdminUser,
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Password: influxDBAdminPass,
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IsDefault: true,
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BasicAuth: false,
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}
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_, err := se.gclient.NewDataSource(dataSource)
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if err != nil {
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log.Warn(err.Error())
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return err
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}
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return nil
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}
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func (se *Stateth) importGrafanaDashboards() error {
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log.Info("Importing Grafana dashboards")
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files, err := ioutil.ReadDir(se.config.DashboardsFolder)
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if err != nil {
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log.Warn(err.Error())
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return nil
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}
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for _, f := range files {
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name := f.Name()
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if strings.Contains(name, "json") {
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log.Info("Importing dashboard", "dashboard", name)
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blob, err := ioutil.ReadFile(filepath.Join(se.config.DashboardsFolder, name))
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if err != nil {
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log.Warn(err.Error())
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return nil
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}
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model := se.prepareDashboardModel(string(blob))
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_, err = se.gclient.SaveDashboard(model, false)
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if err != nil {
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log.Warn(err.Error())
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return nil
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}
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}
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}
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return nil
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}
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func (se *Stateth) prepareDashboardModel(configJSON string) map[string]interface{} {
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configMap := map[string]interface{}{}
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err := json.Unmarshal([]byte(configJSON), &configMap)
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if err != nil {
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panic("Invalid JSON got into prepare func")
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}
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delete(configMap, "id")
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// Only exists in 5.0+
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delete(configMap, "uid")
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configMap["version"] = 0
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return configMap
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}
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