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setup.go
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setup.go
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package main
import (
"bytes"
"encoding/base64"
"encoding/json"
"errors"
"fmt"
"os"
"path/filepath"
"regexp"
"sort"
"strings"
"time"
"github.com/BurntSushi/toml"
"github.com/cometbft/cometbft/config"
"github.com/cometbft/cometbft/crypto/ed25519"
"github.com/cometbft/cometbft/libs/log"
"github.com/cometbft/cometbft/p2p"
"github.com/cometbft/cometbft/privval"
e2e "github.com/cometbft/cometbft/test/e2e/pkg"
"github.com/cometbft/cometbft/test/e2e/pkg/infra"
"github.com/cometbft/cometbft/types"
)
const (
AppAddressTCP = "tcp://127.0.0.1:30000"
AppAddressUNIX = "unix:///var/run/app.sock"
PrivvalAddressTCP = "tcp://0.0.0.0:27559"
PrivvalAddressUNIX = "unix:///var/run/privval.sock"
PrivvalKeyFile = "config/priv_validator_key.json"
PrivvalStateFile = "data/priv_validator_state.json"
PrivvalDummyKeyFile = "config/dummy_validator_key.json"
PrivvalDummyStateFile = "data/dummy_validator_state.json"
)
// Setup sets up the testnet configuration.
func Setup(testnet *e2e.Testnet, infp infra.Provider) error {
logger.Info("setup", "msg", log.NewLazySprintf("Generating testnet files in %q", testnet.Dir))
if err := os.MkdirAll(testnet.Dir, os.ModePerm); err != nil {
return err
}
if err := infp.Setup(); err != nil {
return err
}
genesis, err := MakeGenesis(testnet)
if err != nil {
return err
}
for _, node := range testnet.Nodes {
nodeDir := filepath.Join(testnet.Dir, node.Name)
dirs := []string{
filepath.Join(nodeDir, "config"),
filepath.Join(nodeDir, "data"),
filepath.Join(nodeDir, "data", "app"),
}
for _, dir := range dirs {
// light clients don't need an app directory
if node.Mode == e2e.ModeLight && strings.Contains(dir, "app") {
continue
}
err := os.MkdirAll(dir, 0o755)
if err != nil {
return err
}
}
cfg, err := MakeConfig(node)
if err != nil {
return err
}
config.WriteConfigFile(filepath.Join(nodeDir, "config", "config.toml"), cfg) // panics
appCfg, err := MakeAppConfig(node)
if err != nil {
return err
}
err = os.WriteFile(filepath.Join(nodeDir, "config", "app.toml"), appCfg, 0o644) //nolint:gosec
if err != nil {
return err
}
if node.Mode == e2e.ModeLight {
// stop early if a light client
continue
}
err = genesis.SaveAs(filepath.Join(nodeDir, "config", "genesis.json"))
if err != nil {
return err
}
err = (&p2p.NodeKey{PrivKey: node.NodeKey}).SaveAs(filepath.Join(nodeDir, "config", "node_key.json"))
if err != nil {
return err
}
(privval.NewFilePV(node.PrivvalKey,
filepath.Join(nodeDir, PrivvalKeyFile),
filepath.Join(nodeDir, PrivvalStateFile),
)).Save()
// Set up a dummy validator. CometBFT requires a file PV even when not used, so we
// give it a dummy such that it will fail if it actually tries to use it.
(privval.NewFilePV(ed25519.GenPrivKey(),
filepath.Join(nodeDir, PrivvalDummyKeyFile),
filepath.Join(nodeDir, PrivvalDummyStateFile),
)).Save()
}
if testnet.Prometheus {
if err := testnet.WritePrometheusConfig(); err != nil {
return err
}
}
return nil
}
// MakeGenesis generates a genesis document.
func MakeGenesis(testnet *e2e.Testnet) (types.GenesisDoc, error) {
genesis := types.GenesisDoc{
GenesisTime: time.Now(),
ChainID: testnet.Name,
ConsensusParams: types.DefaultConsensusParams(),
InitialHeight: testnet.InitialHeight,
}
// set the app version to 1
genesis.ConsensusParams.Version.App = 1
genesis.ConsensusParams.Evidence.MaxAgeNumBlocks = e2e.EvidenceAgeHeight
genesis.ConsensusParams.Evidence.MaxAgeDuration = e2e.EvidenceAgeTime
genesis.ConsensusParams.ABCI.VoteExtensionsEnableHeight = testnet.VoteExtensionsEnableHeight
for validator, power := range testnet.Validators {
genesis.Validators = append(genesis.Validators, types.GenesisValidator{
Name: validator.Name,
Address: validator.PrivvalKey.PubKey().Address(),
PubKey: validator.PrivvalKey.PubKey(),
Power: power,
})
}
// The validator set will be sorted internally by CometBFT ranked by power,
// but we sort it here as well so that all genesis files are identical.
sort.Slice(genesis.Validators, func(i, j int) bool {
return strings.Compare(genesis.Validators[i].Name, genesis.Validators[j].Name) == -1
})
if len(testnet.InitialState) > 0 {
appState, err := json.Marshal(testnet.InitialState)
if err != nil {
return genesis, err
}
genesis.AppState = appState
}
return genesis, genesis.ValidateAndComplete()
}
// MakeConfig generates a CometBFT config for a node.
func MakeConfig(node *e2e.Node) (*config.Config, error) {
cfg := config.DefaultConfig()
cfg.Moniker = node.Name
cfg.ProxyApp = AppAddressTCP
cfg.RPC.ListenAddress = "tcp://0.0.0.0:26657"
cfg.RPC.PprofListenAddress = ":6060"
cfg.P2P.ExternalAddress = fmt.Sprintf("tcp://%v", node.AddressP2P(false))
cfg.P2P.AddrBookStrict = false
cfg.DBBackend = node.Database
cfg.StateSync.DiscoveryTime = 5 * time.Second
cfg.BlockSync.Version = node.BlockSyncVersion
cfg.Mempool.ExperimentalMaxGossipConnectionsToNonPersistentPeers = int(node.Testnet.ExperimentalMaxGossipConnectionsToNonPersistentPeers)
cfg.Mempool.ExperimentalMaxGossipConnectionsToPersistentPeers = int(node.Testnet.ExperimentalMaxGossipConnectionsToPersistentPeers)
switch node.ABCIProtocol {
case e2e.ProtocolUNIX:
cfg.ProxyApp = AppAddressUNIX
case e2e.ProtocolTCP:
cfg.ProxyApp = AppAddressTCP
case e2e.ProtocolGRPC:
cfg.ProxyApp = AppAddressTCP
cfg.ABCI = "grpc"
case e2e.ProtocolBuiltin, e2e.ProtocolBuiltinConnSync:
cfg.ProxyApp = ""
cfg.ABCI = ""
default:
return nil, fmt.Errorf("unexpected ABCI protocol setting %q", node.ABCIProtocol)
}
// CometBFT errors if it does not have a privval key set up, regardless of whether
// it's actually needed (e.g. for remote KMS or non-validators). We set up a dummy
// key here by default, and use the real key for actual validators that should use
// the file privval.
cfg.PrivValidatorListenAddr = ""
cfg.PrivValidatorKey = PrivvalDummyKeyFile
cfg.PrivValidatorState = PrivvalDummyStateFile
switch node.Mode {
case e2e.ModeValidator:
switch node.PrivvalProtocol {
case e2e.ProtocolFile:
cfg.PrivValidatorKey = PrivvalKeyFile
cfg.PrivValidatorState = PrivvalStateFile
case e2e.ProtocolUNIX:
cfg.PrivValidatorListenAddr = PrivvalAddressUNIX
case e2e.ProtocolTCP:
cfg.PrivValidatorListenAddr = PrivvalAddressTCP
default:
return nil, fmt.Errorf("invalid privval protocol setting %q", node.PrivvalProtocol)
}
case e2e.ModeSeed:
cfg.P2P.SeedMode = true
cfg.P2P.PexReactor = true
case e2e.ModeFull, e2e.ModeLight:
// Don't need to do anything, since we're using a dummy privval key by default.
default:
return nil, fmt.Errorf("unexpected mode %q", node.Mode)
}
if node.StateSync {
cfg.StateSync.Enable = true
cfg.StateSync.RPCServers = []string{}
for _, peer := range node.Testnet.ArchiveNodes() {
if peer.Name == node.Name {
continue
}
cfg.StateSync.RPCServers = append(cfg.StateSync.RPCServers, peer.AddressRPC())
}
if len(cfg.StateSync.RPCServers) < 2 {
return nil, errors.New("unable to find 2 suitable state sync RPC servers")
}
}
cfg.P2P.Seeds = ""
for _, seed := range node.Seeds {
if len(cfg.P2P.Seeds) > 0 {
cfg.P2P.Seeds += ","
}
cfg.P2P.Seeds += seed.AddressP2P(true)
}
cfg.P2P.PersistentPeers = ""
for _, peer := range node.PersistentPeers {
if len(cfg.P2P.PersistentPeers) > 0 {
cfg.P2P.PersistentPeers += ","
}
cfg.P2P.PersistentPeers += peer.AddressP2P(true)
}
if node.Prometheus {
cfg.Instrumentation.Prometheus = true
}
return cfg, nil
}
// MakeAppConfig generates an ABCI application config for a node.
func MakeAppConfig(node *e2e.Node) ([]byte, error) {
cfg := map[string]interface{}{
"chain_id": node.Testnet.Name,
"dir": "data/app",
"listen": AppAddressUNIX,
"mode": node.Mode,
"protocol": "socket",
"persist_interval": node.PersistInterval,
"snapshot_interval": node.SnapshotInterval,
"retain_blocks": node.RetainBlocks,
"key_type": node.PrivvalKey.Type(),
"prepare_proposal_delay": node.Testnet.PrepareProposalDelay,
"process_proposal_delay": node.Testnet.ProcessProposalDelay,
"check_tx_delay": node.Testnet.CheckTxDelay,
"vote_extension_delay": node.Testnet.VoteExtensionDelay,
"finalize_block_delay": node.Testnet.FinalizeBlockDelay,
}
switch node.ABCIProtocol {
case e2e.ProtocolUNIX:
cfg["listen"] = AppAddressUNIX
case e2e.ProtocolTCP:
cfg["listen"] = AppAddressTCP
case e2e.ProtocolGRPC:
cfg["listen"] = AppAddressTCP
cfg["protocol"] = "grpc"
case e2e.ProtocolBuiltin, e2e.ProtocolBuiltinConnSync:
delete(cfg, "listen")
cfg["protocol"] = string(node.ABCIProtocol)
default:
return nil, fmt.Errorf("unexpected ABCI protocol setting %q", node.ABCIProtocol)
}
if node.Mode == e2e.ModeValidator {
switch node.PrivvalProtocol {
case e2e.ProtocolFile:
case e2e.ProtocolTCP:
cfg["privval_server"] = PrivvalAddressTCP
cfg["privval_key"] = PrivvalKeyFile
cfg["privval_state"] = PrivvalStateFile
case e2e.ProtocolUNIX:
cfg["privval_server"] = PrivvalAddressUNIX
cfg["privval_key"] = PrivvalKeyFile
cfg["privval_state"] = PrivvalStateFile
default:
return nil, fmt.Errorf("unexpected privval protocol setting %q", node.PrivvalProtocol)
}
}
if len(node.Testnet.ValidatorUpdates) > 0 {
validatorUpdates := map[string]map[string]int64{}
for height, validators := range node.Testnet.ValidatorUpdates {
updateVals := map[string]int64{}
for node, power := range validators {
updateVals[base64.StdEncoding.EncodeToString(node.PrivvalKey.PubKey().Bytes())] = power
}
validatorUpdates[fmt.Sprintf("%v", height)] = updateVals
}
cfg["validator_update"] = validatorUpdates
}
var buf bytes.Buffer
err := toml.NewEncoder(&buf).Encode(cfg)
if err != nil {
return nil, fmt.Errorf("failed to generate app config: %w", err)
}
return buf.Bytes(), nil
}
// UpdateConfigStateSync updates the state sync config for a node.
func UpdateConfigStateSync(node *e2e.Node, height int64, hash []byte) error {
cfgPath := filepath.Join(node.Testnet.Dir, node.Name, "config", "config.toml")
// FIXME Apparently there's no function to simply load a config file without
// involving the entire Viper apparatus, so we'll just resort to regexps.
bz, err := os.ReadFile(cfgPath)
if err != nil {
return err
}
bz = regexp.MustCompile(`(?m)^trust_height =.*`).ReplaceAll(bz, []byte(fmt.Sprintf(`trust_height = %v`, height)))
bz = regexp.MustCompile(`(?m)^trust_hash =.*`).ReplaceAll(bz, []byte(fmt.Sprintf(`trust_hash = "%X"`, hash)))
return os.WriteFile(cfgPath, bz, 0o644) //nolint:gosec
}