package config import ( "bytes" "fmt" "os" "path/filepath" "text/template" cmn "github.com/tendermint/tendermint/libs/common" ) var configTemplate *template.Template func init() { var err error if configTemplate, err = template.New("configFileTemplate").Parse(defaultConfigTemplate); err != nil { panic(err) } } /****** these are for production settings ***********/ // EnsureRoot creates the root, config, and data directories if they don't exist, // and panics if it fails. func EnsureRoot(rootDir string) { if err := cmn.EnsureDir(rootDir, 0700); err != nil { cmn.PanicSanity(err.Error()) } if err := cmn.EnsureDir(filepath.Join(rootDir, defaultConfigDir), 0700); err != nil { cmn.PanicSanity(err.Error()) } if err := cmn.EnsureDir(filepath.Join(rootDir, defaultDataDir), 0700); err != nil { cmn.PanicSanity(err.Error()) } configFilePath := filepath.Join(rootDir, defaultConfigFilePath) // Write default config file if missing. if !cmn.FileExists(configFilePath) { writeDefaultConfigFile(configFilePath) } } // XXX: this func should probably be called by cmd/tendermint/commands/init.go // alongside the writing of the genesis.json and priv_validator.json func writeDefaultConfigFile(configFilePath string) { WriteConfigFile(configFilePath, DefaultConfig()) } // WriteConfigFile renders config using the template and writes it to configFilePath. func WriteConfigFile(configFilePath string, config *Config) { var buffer bytes.Buffer if err := configTemplate.Execute(&buffer, config); err != nil { panic(err) } cmn.MustWriteFile(configFilePath, buffer.Bytes(), 0644) } // Note: any changes to the comments/variables/mapstructure // must be reflected in the appropriate struct in config/config.go const defaultConfigTemplate = `# This is a TOML config file. # For more information, see https://github.com/toml-lang/toml ##### main base config options ##### # TCP or UNIX socket address of the ABCI application, # or the name of an ABCI application compiled in with the Tendermint binary proxy_app = "{{ .BaseConfig.ProxyApp }}" # A custom human readable name for this node moniker = "{{ .BaseConfig.Moniker }}" # If this node is many blocks behind the tip of the chain, FastSync # allows them to catchup quickly by downloading blocks in parallel # and verifying their commits fast_sync = {{ .BaseConfig.FastSync }} # Database backend: leveldb | memdb | cleveldb db_backend = "{{ .BaseConfig.DBBackend }}" # Database directory db_dir = "{{ js .BaseConfig.DBPath }}" # Output level for logging, including package level options log_level = "{{ .BaseConfig.LogLevel }}" # Output format: 'plain' (colored text) or 'json' log_format = "{{ .BaseConfig.LogFormat }}" ##### additional base config options ##### # Path to the JSON file containing the initial validator set and other meta data genesis_file = "{{ js .BaseConfig.Genesis }}" # Path to the JSON file containing the private key to use as a validator in the consensus protocol priv_validator_key_file = "{{ js .BaseConfig.PrivValidatorKey }}" # Path to the JSON file containing the last sign state of a validator priv_validator_state_file = "{{ js .BaseConfig.PrivValidatorState }}" # TCP or UNIX socket address for Tendermint to listen on for # connections from an external PrivValidator process priv_validator_laddr = "{{ .BaseConfig.PrivValidatorListenAddr }}" # Path to the JSON file containing the private key to use for node authentication in the p2p protocol node_key_file = "{{ js .BaseConfig.NodeKey }}" # Mechanism to connect to the ABCI application: socket | grpc abci = "{{ .BaseConfig.ABCI }}" # TCP or UNIX socket address for the profiling server to listen on prof_laddr = "{{ .BaseConfig.ProfListenAddress }}" # If true, query the ABCI app on connecting to a new peer # so the app can decide if we should keep the connection or not filter_peers = {{ .BaseConfig.FilterPeers }} ##### advanced configuration options ##### ##### rpc server configuration options ##### [rpc] # TCP or UNIX socket address for the RPC server to listen on laddr = "{{ .RPC.ListenAddress }}" # A list of origins a cross-domain request can be executed from # Default value '[]' disables cors support # Use '["*"]' to allow any origin cors_allowed_origins = [{{ range .RPC.CORSAllowedOrigins }}{{ printf "%q, " . }}{{end}}] # A list of methods the client is allowed to use with cross-domain requests cors_allowed_methods = [{{ range .RPC.CORSAllowedMethods }}{{ printf "%q, " . }}{{end}}] # A list of non simple headers the client is allowed to use with cross-domain requests cors_allowed_headers = [{{ range .RPC.CORSAllowedHeaders }}{{ printf "%q, " . }}{{end}}] # TCP or UNIX socket address for the gRPC server to listen on # NOTE: This server only supports /broadcast_tx_commit grpc_laddr = "{{ .RPC.GRPCListenAddress }}" # Maximum number of simultaneous connections. # Does not include RPC (HTTP&WebSocket) connections. See max_open_connections # If you want to accept a larger number than the default, make sure # you increase your OS limits. # 0 - unlimited. # Should be < {ulimit -Sn} - {MaxNumInboundPeers} - {MaxNumOutboundPeers} - {N of wal, db and other open files} # 1024 - 40 - 10 - 50 = 924 = ~900 grpc_max_open_connections = {{ .RPC.GRPCMaxOpenConnections }} # Activate unsafe RPC commands like /dial_seeds and /unsafe_flush_mempool unsafe = {{ .RPC.Unsafe }} # Maximum number of simultaneous connections (including WebSocket). # Does not include gRPC connections. See grpc_max_open_connections # If you want to accept a larger number than the default, make sure # you increase your OS limits. # 0 - unlimited. # Should be < {ulimit -Sn} - {MaxNumInboundPeers} - {MaxNumOutboundPeers} - {N of wal, db and other open files} # 1024 - 40 - 10 - 50 = 924 = ~900 max_open_connections = {{ .RPC.MaxOpenConnections }} ##### peer to peer configuration options ##### [p2p] # Address to listen for incoming connections laddr = "{{ .P2P.ListenAddress }}" # Address to advertise to peers for them to dial # If empty, will use the same port as the laddr, # and will introspect on the listener or use UPnP # to figure out the address. external_address = "{{ .P2P.ExternalAddress }}" # Comma separated list of seed nodes to connect to seeds = "{{ .P2P.Seeds }}" # Comma separated list of nodes to keep persistent connections to persistent_peers = "{{ .P2P.PersistentPeers }}" # UPNP port forwarding upnp = {{ .P2P.UPNP }} # Path to address book addr_book_file = "{{ js .P2P.AddrBook }}" # Set true for strict address routability rules # Set false for private or local networks addr_book_strict = {{ .P2P.AddrBookStrict }} # Maximum number of inbound peers max_num_inbound_peers = {{ .P2P.MaxNumInboundPeers }} # Maximum number of outbound peers to connect to, excluding persistent peers max_num_outbound_peers = {{ .P2P.MaxNumOutboundPeers }} # Time to wait before flushing messages out on the connection flush_throttle_timeout = "{{ .P2P.FlushThrottleTimeout }}" # Maximum size of a message packet payload, in bytes max_packet_msg_payload_size = {{ .P2P.MaxPacketMsgPayloadSize }} # Rate at which packets can be sent, in bytes/second send_rate = {{ .P2P.SendRate }} # Rate at which packets can be received, in bytes/second recv_rate = {{ .P2P.RecvRate }} # Set true to enable the peer-exchange reactor pex = {{ .P2P.PexReactor }} # Seed mode, in which node constantly crawls the network and looks for # peers. If another node asks it for addresses, it responds and disconnects. # # Does not work if the peer-exchange reactor is disabled. seed_mode = {{ .P2P.SeedMode }} # Comma separated list of peer IDs to keep private (will not be gossiped to other peers) private_peer_ids = "{{ .P2P.PrivatePeerIDs }}" # Toggle to disable guard against peers connecting from the same ip. allow_duplicate_ip = {{ .P2P.AllowDuplicateIP }} # Peer connection configuration. handshake_timeout = "{{ .P2P.HandshakeTimeout }}" dial_timeout = "{{ .P2P.DialTimeout }}" ##### mempool configuration options ##### [mempool] recheck = {{ .Mempool.Recheck }} broadcast = {{ .Mempool.Broadcast }} wal_dir = "{{ js .Mempool.WalPath }}" # size of the mempool size = {{ .Mempool.Size }} # size of the cache (used to filter transactions we saw earlier) cache_size = {{ .Mempool.CacheSize }} ##### consensus configuration options ##### [consensus] wal_file = "{{ js .Consensus.WalPath }}" timeout_propose = "{{ .Consensus.TimeoutPropose }}" timeout_propose_delta = "{{ .Consensus.TimeoutProposeDelta }}" timeout_prevote = "{{ .Consensus.TimeoutPrevote }}" timeout_prevote_delta = "{{ .Consensus.TimeoutPrevoteDelta }}" timeout_precommit = "{{ .Consensus.TimeoutPrecommit }}" timeout_precommit_delta = "{{ .Consensus.TimeoutPrecommitDelta }}" timeout_commit = "{{ .Consensus.TimeoutCommit }}" # Make progress as soon as we have all the precommits (as if TimeoutCommit = 0) skip_timeout_commit = {{ .Consensus.SkipTimeoutCommit }} # EmptyBlocks mode and possible interval between empty blocks create_empty_blocks = {{ .Consensus.CreateEmptyBlocks }} create_empty_blocks_interval = "{{ .Consensus.CreateEmptyBlocksInterval }}" # Reactor sleep duration parameters peer_gossip_sleep_duration = "{{ .Consensus.PeerGossipSleepDuration }}" peer_query_maj23_sleep_duration = "{{ .Consensus.PeerQueryMaj23SleepDuration }}" # Block time parameters. Corresponds to the minimum time increment between consecutive blocks. blocktime_iota = "{{ .Consensus.BlockTimeIota }}" ##### transactions indexer configuration options ##### [tx_index] # What indexer to use for transactions # # Options: # 1) "null" # 2) "kv" (default) - the simplest possible indexer, backed by key-value storage (defaults to levelDB; see DBBackend). indexer = "{{ .TxIndex.Indexer }}" # Comma-separated list of tags to index (by default the only tag is "tx.hash") # # You can also index transactions by height by adding "tx.height" tag here. # # It's recommended to index only a subset of tags due to possible memory # bloat. This is, of course, depends on the indexer's DB and the volume of # transactions. index_tags = "{{ .TxIndex.IndexTags }}" # When set to true, tells indexer to index all tags (predefined tags: # "tx.hash", "tx.height" and all tags from DeliverTx responses). # # Note this may be not desirable (see the comment above). IndexTags has a # precedence over IndexAllTags (i.e. when given both, IndexTags will be # indexed). index_all_tags = {{ .TxIndex.IndexAllTags }} ##### instrumentation configuration options ##### [instrumentation] # When true, Prometheus metrics are served under /metrics on # PrometheusListenAddr. # Check out the documentation for the list of available metrics. prometheus = {{ .Instrumentation.Prometheus }} # Address to listen for Prometheus collector(s) connections prometheus_listen_addr = "{{ .Instrumentation.PrometheusListenAddr }}" # Maximum number of simultaneous connections. # If you want to accept a larger number than the default, make sure # you increase your OS limits. # 0 - unlimited. max_open_connections = {{ .Instrumentation.MaxOpenConnections }} # Instrumentation namespace namespace = "{{ .Instrumentation.Namespace }}" ` /****** these are for test settings ***********/ func ResetTestRoot(testName string) *Config { return ResetTestRootWithChainID(testName, "") } func ResetTestRootWithChainID(testName string, chainID string) *Config { rootDir := os.ExpandEnv("$HOME/.tendermint_test") rootDir = filepath.Join(rootDir, testName) // Remove ~/.tendermint_test_bak if cmn.FileExists(rootDir + "_bak") { if err := os.RemoveAll(rootDir + "_bak"); err != nil { cmn.PanicSanity(err.Error()) } } // Move ~/.tendermint_test to ~/.tendermint_test_bak if cmn.FileExists(rootDir) { if err := os.Rename(rootDir, rootDir+"_bak"); err != nil { cmn.PanicSanity(err.Error()) } } // Create new dir if err := cmn.EnsureDir(rootDir, 0700); err != nil { cmn.PanicSanity(err.Error()) } if err := cmn.EnsureDir(filepath.Join(rootDir, defaultConfigDir), 0700); err != nil { cmn.PanicSanity(err.Error()) } if err := cmn.EnsureDir(filepath.Join(rootDir, defaultDataDir), 0700); err != nil { cmn.PanicSanity(err.Error()) } baseConfig := DefaultBaseConfig() configFilePath := filepath.Join(rootDir, defaultConfigFilePath) genesisFilePath := filepath.Join(rootDir, baseConfig.Genesis) privKeyFilePath := filepath.Join(rootDir, baseConfig.PrivValidatorKey) privStateFilePath := filepath.Join(rootDir, baseConfig.PrivValidatorState) // Write default config file if missing. if !cmn.FileExists(configFilePath) { writeDefaultConfigFile(configFilePath) } if !cmn.FileExists(genesisFilePath) { if chainID == "" { chainID = "tendermint_test" } testGenesis := fmt.Sprintf(testGenesisFmt, chainID) cmn.MustWriteFile(genesisFilePath, []byte(testGenesis), 0644) } // we always overwrite the priv val cmn.MustWriteFile(privKeyFilePath, []byte(testPrivValidatorKey), 0644) cmn.MustWriteFile(privStateFilePath, []byte(testPrivValidatorState), 0644) config := TestConfig().SetRoot(rootDir) return config } var testGenesisFmt = `{ "genesis_time": "2018-10-10T08:20:13.695936996Z", "chain_id": "%s", "validators": [ { "pub_key": { "type": "tendermint/PubKeyEd25519", "value":"AT/+aaL1eB0477Mud9JMm8Sh8BIvOYlPGC9KkIUmFaE=" }, "power": "10", "name": "" } ], "app_hash": "" }` var testPrivValidatorKey = `{ "address": "A3258DCBF45DCA0DF052981870F2D1441A36D145", "pub_key": { "type": "tendermint/PubKeyEd25519", "value": "AT/+aaL1eB0477Mud9JMm8Sh8BIvOYlPGC9KkIUmFaE=" }, "priv_key": { "type": "tendermint/PrivKeyEd25519", "value": "EVkqJO/jIXp3rkASXfh9YnyToYXRXhBr6g9cQVxPFnQBP/5povV4HTjvsy530kybxKHwEi85iU8YL0qQhSYVoQ==" } }` var testPrivValidatorState = `{ "height": "0", "round": "0", "step": 0 }`