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toml.go
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toml.go
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package config
import (
"bytes"
"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 #####
# A custom human readable name for this node
moniker = "{{ .BaseConfig.Moniker }}"
# Address to listen for GUI connections
gui_listen_addr = "{{ .BaseConfig.GUIListenAddress }}"
# Address to listen for API connections
api_listen_addr = "{{ .BaseConfig.APIListenAddress }}"
# Sets node to be in validator mode. Disables API, events, history of blocks, indexes, etc.
validator_mode = {{ .BaseConfig.ValidatorMode }}
# If set to true node will save old states. This can be useful for applications which need all blockchain history data.
keep_state_history = {{ .BaseConfig.KeepStateHistory }}
# Limit for simultaneous requests to API
api_simultaneous_requests = {{ .BaseConfig.APISimultaneousRequests }}
# Limit API requests for client (by IP)
api_per_ip_limit = {{ .BaseConfig.APIPerIPLimit }}
# How often API requests limits will be cleared
api_per_ip_limit_window = "{{ .BaseConfig.APIPerIPLimitWindow }}"
# 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
db_backend = "{{ .BaseConfig.DBBackend }}"
# Database directory
db_path = "{{ js .BaseConfig.DBPath }}"
# Output level for logging, including package level options
log_level = "{{ .BaseConfig.LogLevel }}"
# Path to file for logs, "stdout" by default
log_path = "{{ .BaseConfig.LogPath }}"
##### additional base config options #####
# Path to the JSON file containing the private key to use as a validator in the consensus protocol
priv_validator_file = "{{ js .BaseConfig.PrivValidator }}"
# Path to the JSON file containing the private key to use for node authentication in the p2p protocol
node_key_file = "{{ js .BaseConfig.NodeKey}}"
# TCP or UNIX socket address for the profiling server to listen on
prof_laddr = "{{ .BaseConfig.ProfListenAddress }}"
##### advanced configuration options #####
##### rpc server configuration options #####
[rpc]
# TCP or UNIX socket address for the RPC server to listen on
laddr = "{{ .RPC.ListenAddress }}"
# 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 more significant number than the default, make sure
# you increase your OS limits.
# 0 - unlimited.
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 more significant number than the default, make sure
# you increase your OS limits.
# 0 - unlimited.
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
addr_book_strict = {{ .P2P.AddrBookStrict }}
# Time to wait before flushing messages out on the connection, in ms
flush_throttle_timeout = "{{ .P2P.FlushThrottleTimeout }}"
# 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 }}
# 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 }}"
##### 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 }}
##### 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 more significant number than the default, make sure
# you increase your OS limits.
# 0 - unlimited.
max_open_connections = {{ .Instrumentation.MaxOpenConnections }}
# Instrumentation namespace
namespace = "minter"
`