lighthouse/beacon_node/src/cli.rs
Pawan Dhananjay 36f213c092
Dns discovery (#1015)
* Add cli flag and parse dns address

* Fail if enr udp port isn't set

* Improve docs and address parsing

* address review comments

* Remove debug statements

* Add requires condition for enr-address

* Return address in error
2020-05-03 23:18:19 +10:00

249 lines
10 KiB
Rust

use clap::{App, Arg};
pub fn cli_app<'a, 'b>() -> App<'a, 'b> {
App::new("beacon_node")
.visible_aliases(&["b", "bn", "beacon"])
.version(crate_version!())
.author("Sigma Prime <contact@sigmaprime.io>")
.about("The primary component which connects to the Ethereum 2.0 P2P network and \
downloads, verifies and stores blocks. Provides a HTTP API for querying \
the beacon chain and publishing messages to the network.")
/*
* Configuration directory locations.
*/
.arg(
Arg::with_name("network-dir")
.long("network-dir")
.value_name("DIR")
.help("Data directory for network keys. Defaults to network/ inside the beacon node \
dir.")
.takes_value(true)
)
.arg(
Arg::with_name("freezer-dir")
.long("freezer-dir")
.value_name("DIR")
.help("Data directory for the freezer database.")
.takes_value(true)
)
/*
* Network parameters.
*/
.arg(
Arg::with_name("zero-ports")
.long("zero-ports")
.short("z")
.help("Sets all listening TCP/UDP ports to 0, allowing the OS to choose some \
arbitrary free ports.")
.takes_value(false),
)
.arg(
Arg::with_name("listen-address")
.long("listen-address")
.value_name("ADDRESS")
.help("The address lighthouse will listen for UDP and TCP connections.")
.default_value("0.0.0.0")
.takes_value(true)
)
.arg(
Arg::with_name("port")
.long("port")
.value_name("PORT")
.help("The TCP/UDP port to listen on. The UDP port can be modified by the --discovery-port flag.")
.default_value("9000")
.takes_value(true),
)
.arg(
Arg::with_name("discovery-port")
.long("discovery-port")
.value_name("PORT")
.help("The UDP port that discovery will listen on. Defaults to `port`")
.takes_value(true),
)
.arg(
Arg::with_name("maxpeers")
.long("maxpeers")
.help("The maximum number of peers.")
.default_value("50")
.takes_value(true),
)
.arg(
Arg::with_name("boot-nodes")
.long("boot-nodes")
.allow_hyphen_values(true)
.value_name("ENR-LIST")
.help("One or more comma-delimited base64-encoded ENR's to bootstrap the p2p network.")
.takes_value(true),
)
.arg(
Arg::with_name("enr-udp-port")
.long("enr-udp-port")
.value_name("PORT")
.help("The UDP port of the local ENR. Set this only if you are sure other nodes can connect to your local node on this port.")
.takes_value(true),
)
.arg(
Arg::with_name("enr-tcp-port")
.long("enr-tcp-port")
.value_name("PORT")
.help("The TCP port of the local ENR. Set this only if you are sure other nodes can connect to your local node on this port.\
The --port flag is used if this is not set.")
.takes_value(true),
)
.arg(
Arg::with_name("enr-address")
.long("enr-address")
.value_name("ADDRESS")
.help("The IP address/ DNS address to broadcast to other peers on how to reach this node. \
If a DNS address is provided, the enr-address is set to the IP address it resolves to and \
does not auto-update based on PONG responses in discovery. \
Set this only if you are sure other nodes can connect to your local node on this address. \
Discovery will automatically find your external address,if possible.")
.requires("enr-udp-port")
.takes_value(true),
)
.arg(
Arg::with_name("enr-match")
.short("e")
.long("enr-match")
.help("Sets the local ENR IP address and port to match those set for lighthouse. \
Specifically, the IP address will be the value of --listen-address and the UDP port will be --discovery-port.")
)
.arg(
Arg::with_name("disable-enr-auto-update")
.short("x")
.long("disable-enr-auto-update")
.help("Discovery automatically updates the nodes local ENR with an external IP address and port as seen by other peers on the network. \
This disables this feature, fixing the ENR's IP/PORT to those specified on boot.")
.takes_value(true),
)
.arg(
Arg::with_name("libp2p-addresses")
.long("libp2p-addresses")
.value_name("MULTIADDR")
.help("One or more comma-delimited multiaddrs to manually connect to a libp2p peer \
without an ENR.")
.takes_value(true),
)
.arg(
Arg::with_name("p2p-priv-key")
.long("p2p-priv-key")
.value_name("HEX")
.help("A secp256k1 secret key, represented as ASCII-encoded hex bytes (with or \
without 0x prefix). Default is either loaded from disk or generated \
automatically.")
.takes_value(true),
)
.arg(
Arg::with_name("random-propagation")
.long("random-propagation")
.value_name("INTEGER")
.takes_value(true)
.help("Specifies (as a percentage) the likelihood of propagating blocks and \
attestations. This should only be used for testing networking elements. The \
value must like in the range 1-100. Default is 100.")
)
/* REST API related arguments */
.arg(
Arg::with_name("http")
.long("http")
.help("Enable RESTful HTTP API server. Disabled by default.")
.takes_value(false),
)
.arg(
Arg::with_name("http-address")
.long("http-address")
.value_name("ADDRESS")
.help("Set the listen address for the RESTful HTTP API server.")
.default_value("127.0.0.1")
.takes_value(true),
)
.arg(
Arg::with_name("http-port")
.long("http-port")
.value_name("PORT")
.help("Set the listen TCP port for the RESTful HTTP API server.")
.default_value("5052")
.takes_value(true),
)
/* Websocket related arguments */
.arg(
Arg::with_name("ws")
.long("ws")
.help("Enable the websocket server. Disabled by default.")
.takes_value(false),
)
.arg(
Arg::with_name("ws-address")
.long("ws-address")
.value_name("ADDRESS")
.help("Set the listen address for the websocket server.")
.default_value("127.0.0.1")
.takes_value(true),
)
.arg(
Arg::with_name("ws-port")
.long("ws-port")
.value_name("PORT")
.help("Set the listen TCP port for the websocket server.")
.default_value("5053")
.takes_value(true),
)
/*
* Eth1 Integration
*/
.arg(
Arg::with_name("eth1")
.long("eth1")
.help("If present the node will connect to an eth1 node. This is required for \
block production, you must use this flag if you wish to serve a validator.")
.takes_value(false),
)
.arg(
Arg::with_name("dummy-eth1")
.long("dummy-eth1")
.conflicts_with("eth1")
.help("If present, uses an eth1 backend that generates static dummy data.\
Identical to the method used at the 2019 Canada interop.")
)
.arg(
Arg::with_name("eth1-endpoint")
.long("eth1-endpoint")
.value_name("HTTP-ENDPOINT")
.help("Specifies the server for a web3 connection to the Eth1 chain. Also enables the --eth1 flag.")
.takes_value(true)
.default_value("http://127.0.0.1:8545")
)
.arg(
Arg::with_name("slots-per-restore-point")
.long("slots-per-restore-point")
.value_name("SLOT_COUNT")
.help("Specifies how often a freezer DB restore point should be stored. \
DO NOT DECREASE AFTER INITIALIZATION. [default: 2048 (mainnet) or 64 (minimal)]")
.takes_value(true)
)
.arg(
Arg::with_name("block-cache-size")
.long("block-cache-size")
.value_name("SIZE")
.help("Specifies how many blocks the database should cache in memory [default: 5]")
.takes_value(true)
)
.arg(
Arg::with_name("state-cache-size")
.long("state-cache-size")
.value_name("SIZE")
.help("Specifies how many states the database should cache in memory [default: 5]")
.takes_value(true)
)
/*
* Purge.
*/
.arg(
Arg::with_name("purge-db")
.long("purge-db")
.help("If present, the chain database will be deleted. Use with caution.")
)
}