372 lines
8.3 KiB
Go
372 lines
8.3 KiB
Go
// Copyright 2017 AMIS Technologies
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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 container
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import (
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"context"
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"crypto/ecdsa"
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"log"
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"math/big"
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"net"
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"os"
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"path/filepath"
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"time"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/container"
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"github.com/docker/docker/api/types/filters"
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"github.com/docker/docker/client"
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"github.com/docker/go-connections/nat"
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"github.com/ethereum/go-ethereum/cmd/utils"
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"github.com/ethereum/go-ethereum/ethclient"
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"github.com/ethereum/go-ethereum/p2p/discover"
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"github.com/getamis/istanbul-tools/genesis"
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"github.com/getamis/istanbul-tools/istclient"
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)
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const (
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healthCheckRetryCount = 5
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healthCheckRetryDelay = 2 * time.Second
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)
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type Ethereum interface {
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Init(string) error
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Start() error
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Stop() error
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NodeAddress() string
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ContainerID() string
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Host() string
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NewClient() *ethclient.Client
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NewIstanbulClient() *istclient.Client
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}
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func NewEthereum(c *client.Client, options ...Option) *ethereum {
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eth := ðereum{
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client: c,
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}
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for _, opt := range options {
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opt(eth)
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}
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filters := filters.NewArgs()
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filters.Add("reference", eth.Image())
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images, err := c.ImageList(context.Background(), types.ImageListOptions{
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Filters: filters,
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})
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if len(images) == 0 || err != nil {
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out, err := eth.client.ImagePull(context.Background(), eth.Image(), types.ImagePullOptions{})
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if err != nil {
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log.Printf("Cannot pull %s, err: %v", eth.Image(), err)
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return nil
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}
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if eth.logging {
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io.Copy(os.Stdout, out)
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} else {
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io.Copy(ioutil.Discard, out)
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}
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}
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return eth
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}
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type ethereum struct {
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ok bool
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flags []string
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dataDir string
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port string
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rpcPort string
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wsPort string
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hostName string
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containerID string
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node *discover.Node
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imageRepository string
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imageTag string
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key *ecdsa.PrivateKey
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logging bool
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client *client.Client
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}
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func (eth *ethereum) Init(genesisFile string) error {
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if err := saveNodeKey(eth.key, eth.dataDir); err != nil {
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log.Fatal("Failed to save nodekey", err)
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return err
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}
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binds := []string{
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genesisFile + ":" + filepath.Join("/", genesis.FileName),
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}
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if eth.dataDir != "" {
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binds = append(binds, eth.dataDir+":"+utils.DataDirFlag.Value.Value)
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}
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resp, err := eth.client.ContainerCreate(context.Background(),
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&container.Config{
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Image: eth.Image(),
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Cmd: []string{
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"init",
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"--" + utils.DataDirFlag.Name,
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utils.DataDirFlag.Value.Value,
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filepath.Join("/", genesis.FileName),
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},
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},
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&container.HostConfig{
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Binds: binds,
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}, nil, "")
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if err != nil {
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log.Printf("Failed to create container, err: %v", err)
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return err
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}
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id := resp.ID
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if err := eth.client.ContainerStart(context.Background(), id, types.ContainerStartOptions{}); err != nil {
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log.Printf("Failed to start container, err: %v", err)
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return err
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}
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resC, errC := eth.client.ContainerWait(context.Background(), id, container.WaitConditionNotRunning)
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select {
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case <-resC:
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case <-errC:
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log.Printf("Failed to wait container, err: %v", err)
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return err
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}
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if eth.logging {
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eth.showLog(context.Background())
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}
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return eth.client.ContainerRemove(context.Background(), id,
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types.ContainerRemoveOptions{
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Force: true,
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})
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}
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func (eth *ethereum) Start() error {
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exposedPorts := make(map[nat.Port]struct{})
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portBindings := nat.PortMap{}
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if eth.port != "" {
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port := fmt.Sprintf("%d", utils.ListenPortFlag.Value)
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exposedPorts[nat.Port(port)] = struct{}{}
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portBindings[nat.Port(port)] = []nat.PortBinding{
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{
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HostIP: "0.0.0.0",
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HostPort: eth.port,
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},
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}
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}
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if eth.rpcPort != "" {
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port := fmt.Sprintf("%d", utils.RPCPortFlag.Value)
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exposedPorts[nat.Port(port)] = struct{}{}
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portBindings[nat.Port(port)] = []nat.PortBinding{
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{
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HostIP: "0.0.0.0",
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HostPort: eth.rpcPort,
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},
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}
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}
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if eth.wsPort != "" {
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port := fmt.Sprintf("%d", utils.WSPortFlag.Value)
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exposedPorts[nat.Port(port)] = struct{}{}
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portBindings[nat.Port(port)] = []nat.PortBinding{
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{
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HostIP: "0.0.0.0",
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HostPort: eth.wsPort,
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},
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}
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}
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binds := []string{}
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if eth.dataDir != "" {
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binds = append(binds, eth.dataDir+":"+utils.DataDirFlag.Value.Value)
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}
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resp, err := eth.client.ContainerCreate(context.Background(),
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&container.Config{
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Hostname: "geth-" + eth.hostName,
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Image: eth.Image(),
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Cmd: eth.flags,
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ExposedPorts: exposedPorts,
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},
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&container.HostConfig{
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Binds: binds,
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PortBindings: portBindings,
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}, nil, "")
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if err != nil {
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log.Printf("Failed to create container, err: %v", err)
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return err
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}
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defer func() {
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if eth.logging {
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go eth.showLog(context.Background())
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}
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}()
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eth.containerID = resp.ID
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err = eth.client.ContainerStart(context.Background(), eth.containerID, types.ContainerStartOptions{})
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if err != nil {
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log.Printf("Failed to start container, err: %v", err)
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return err
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}
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for i := 0; i < healthCheckRetryCount; i++ {
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cli := eth.NewClient()
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if cli == nil {
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time.Sleep(healthCheckRetryDelay)
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continue
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}
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_, err = cli.BlockByNumber(context.Background(), big.NewInt(0))
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if err != nil {
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time.Sleep(healthCheckRetryDelay)
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continue
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} else {
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eth.ok = true
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}
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}
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if !eth.ok {
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return errors.New("Failed to start geth")
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}
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containerJSON, err := eth.client.ContainerInspect(context.Background(), eth.containerID)
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if err != nil {
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log.Print("Failed to inspect container,", err)
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return err
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}
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if eth.key != nil {
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eth.node = discover.NewNode(
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discover.PubkeyID(ð.key.PublicKey),
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net.ParseIP(containerJSON.NetworkSettings.IPAddress),
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0,
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uint16(utils.ListenPortFlag.Value))
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}
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return nil
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}
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func (eth *ethereum) Stop() error {
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timeout := 10 * time.Second
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err := eth.client.ContainerStop(context.Background(), eth.containerID, &timeout)
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if err != nil {
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return err
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}
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os.RemoveAll(eth.dataDir)
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return eth.client.ContainerRemove(context.Background(), eth.containerID,
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types.ContainerRemoveOptions{
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Force: true,
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})
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}
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func (eth *ethereum) Wait(t time.Duration) error {
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ctx, cancel := context.WithTimeout(context.Background(), t)
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defer cancel()
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_, errCh := eth.client.ContainerWait(ctx, eth.containerID, "")
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return <-errCh
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}
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func (eth *ethereum) Running() bool {
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containers, err := eth.client.ContainerList(context.Background(), types.ContainerListOptions{})
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if err != nil {
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log.Printf("Failed to list containers, err: %v", err)
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return false
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}
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for _, c := range containers {
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if c.ID == eth.containerID {
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return true
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}
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}
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return false
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}
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func (eth *ethereum) NewClient() *ethclient.Client {
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var scheme, port string
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if eth.rpcPort != "" {
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scheme = "http://"
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port = eth.rpcPort
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}
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if eth.wsPort != "" {
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scheme = "ws://"
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port = eth.wsPort
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}
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client, err := ethclient.Dial(scheme + eth.Host() + ":" + port)
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if err != nil {
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return nil
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}
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return client
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}
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func (eth *ethereum) NewIstanbulClient() *istclient.Client {
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var scheme, port string
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if eth.rpcPort != "" {
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scheme = "http://"
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port = eth.rpcPort
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}
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if eth.wsPort != "" {
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scheme = "ws://"
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port = eth.wsPort
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}
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client, err := istclient.Dial(scheme + eth.Host() + ":" + port)
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if err != nil {
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return nil
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}
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return client
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}
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func (eth *ethereum) NodeAddress() string {
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if eth.node != nil {
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return eth.node.String()
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}
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return ""
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}
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// ----------------------------------------------------------------------------
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func (eth *ethereum) showLog(context context.Context) {
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if readCloser, err := eth.client.ContainerLogs(context, eth.containerID,
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types.ContainerLogsOptions{ShowStderr: true, Follow: true}); err == nil {
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defer readCloser.Close()
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_, err = io.Copy(os.Stdout, readCloser)
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if err != nil && err != io.EOF {
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log.Fatal(err)
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}
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}
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}
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