ePBS (Gloas) support, part 3: validators' builder config from the Commit-Boost config

Cargo.toml

@@ -32,6 +32,7 @@ bytes = "1.10.1"
 criterion = { version = "0.5", features = ["html_reports"] }
 cb-cli = { path = "crates/cli" }
 cb-common = { path = "crates/common" }
+cb-km = { path = "crates/km" }
 cb-metrics = { path = "crates/metrics" }
 cb-pbs = { path = "crates/pbs" }
 cb-signer = { path = "crates/signer" }

README.md

@@ -21,7 +21,7 @@ Commit-Boost is a modular sidecar that allows Ethereum validators to opt-in to d
 - Support for hard-forks and new protocol requirements
 
 ## Get started
-- [Node operators](https://commit-boost.github.io/commit-boost-client/category/get-started)
+- [Node operators](https://commit-boost.github.io/commit-boost-client/category/get-started). From the Gloas fork, a validator key gets no bids through Commit-Boost until its builder config points at Commit-Boost, which [`commit-boost builder-config`](https://commit-boost.github.io/commit-boost-client/get_started/epbs#builder-config-command) writes
 - [Developers](https://commit-boost.github.io/commit-boost-client/category/developing). Check out also the [examples](/examples)
 
 ## Audit

benches/pbs/src/main.rs

@@ -162,6 +162,7 @@ fn get_mock_validator(bench: BenchConfig) -> RelayClient {
         target_first_request_ms: None,
         frequency_get_header_ms: None,
         validator_registration_batch_size: None,
+        max_execution_payment_gwei: None,
     };
 
     RelayClient::new(config).unwrap()

bin/Cargo.toml

@@ -7,6 +7,7 @@ version.workspace = true
 [dependencies]
 cb-cli.workspace = true
 cb-common.workspace = true
+cb-km.workspace = true
 cb-metrics.workspace = true
 cb-pbs.workspace = true
 cb-signer.workspace = true
@@ -20,7 +21,9 @@ tree_hash_derive.workspace = true
 
 [dev-dependencies]
 assert_cmd.workspace = true
+axum.workspace = true
 predicates.workspace = true
+serde_json.workspace = true
 serde_yaml.workspace = true
 tempfile.workspace = true
 

bin/commit-boost.rs

@@ -1,4 +1,4 @@
-use std::path::PathBuf;
+use std::{path::PathBuf, process::ExitCode};
 
 use cb_cli::docker_init::handle_docker_init;
 use cb_common::{
@@ -42,12 +42,14 @@ enum Commands {
         #[arg(short, long("output"), default_value = "./")]
         output_path: PathBuf,
     },
+
+    /// Print or write each validator key's ePBS builder config, for its
+    /// validator client's keymanager API
+    BuilderConfig(cb_km::cli::BuilderConfigArgs),
 }
 
 #[tokio::main]
-async fn main() -> Result<()> {
-    // Parse the CLI arguments (currently only used for version info, more can be
-    // added later)
+async fn main() -> Result<ExitCode> {
     let cli = Cli::parse();
 
     color_eyre::install()?;
@@ -56,9 +58,10 @@ async fn main() -> Result<()> {
         Commands::Pbs => run_pbs_service().await?,
         Commands::Signer => run_signer_service().await?,
         Commands::Init { config_path, output_path } => run_init(config_path, output_path).await?,
+        Commands::BuilderConfig(args) => return Ok(cb_km::cli::run(args).await),
     }
 
-    Ok(())
+    Ok(ExitCode::SUCCESS)
 }
 
 /// Run the PBS service