[Node Startup Config] Add ability to skip optimizer/sanitizer.

config/src/config/config_optimizer.rs

@@ -96,6 +96,11 @@ impl ConfigOptimizer for NodeConfig {
         node_type: NodeType,
         chain_id: Option<ChainId>,
     ) -> Result<bool, Error> {
+        // If config optimization is disabled, don't do anything!
+        if node_config.node_startup.skip_config_optimizer {
+            return Ok(false);
+        }
+
         // Optimize only the relevant sub-configs
         let mut optimizers_with_modifications = vec![];
         if IndexerConfig::optimize(node_config, local_config_yaml, node_type, chain_id)? {
@@ -288,9 +293,47 @@ fn build_seed_peer(
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::{config::NetworkConfig, network_id::NetworkId};
+    use crate::{
+        config::{node_startup_config::NodeStartupConfig, NetworkConfig},
+        network_id::NetworkId,
+    };
     use aptos_types::account_address::AccountAddress;
 
+    #[test]
+    fn test_disable_optimizer() {
+        // Create a default node config (with optimization enabled)
+        let mut node_config = NodeConfig::default();
+
+        // Optimize the node config for mainnet VFNs and verify modifications are made
+        let modified_config = NodeConfig::optimize(
+            &mut node_config,
+            &serde_yaml::from_str("{}").unwrap(), // An empty local config
+            NodeType::ValidatorFullnode,
+            Some(ChainId::mainnet()),
+        )
+        .unwrap();
+        assert!(modified_config);
+
+        // Create a node config with the optimizer disabled
+        let mut node_config = NodeConfig {
+            node_startup: NodeStartupConfig {
+                skip_config_optimizer: true,
+                ..Default::default()
+            },
+            ..Default::default()
+        };
+
+        // Optimize the node config for mainnet VFNs and verify no modifications are made
+        let modified_config = NodeConfig::optimize(
+            &mut node_config,
+            &serde_yaml::from_str("{}").unwrap(), // An empty local config
+            NodeType::ValidatorFullnode,
+            Some(ChainId::mainnet()),
+        )
+        .unwrap();
+        assert!(!modified_config);
+    }
+
     #[test]
     fn test_optimize_public_network_config_mainnet() {
         // Create a public network config with no seeds

config/src/config/config_sanitizer.rs

@@ -41,6 +41,11 @@ impl ConfigSanitizer for NodeConfig {
         node_type: NodeType,
         chain_id: Option<ChainId>,
     ) -> Result<(), Error> {
+        // If config sanitization is disabled, don't do anything!
+        if node_config.node_startup.skip_config_sanitizer {
+            return Ok(());
+        }
+
         // Sanitize all of the sub-configs
         AdminServiceConfig::sanitize(node_config, node_type, chain_id)?;
         ApiConfig::sanitize(node_config, node_type, chain_id)?;
@@ -197,7 +202,40 @@ fn sanitize_validator_network_config(
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::{config::NetworkConfig, network_id::NetworkId};
+    use crate::{
+        config::{node_startup_config::NodeStartupConfig, NetworkConfig},
+        network_id::NetworkId,
+    };
+
+    #[test]
+    fn test_disable_config_sanitizer() {
+        // Create a default node config (with sanitization enabled)
+        let mut node_config = NodeConfig::default();
+
+        // Set a bad node config for mainnet
+        node_config.execution.paranoid_hot_potato_verification = false;
+
+        // Sanitize the config and verify the sanitizer fails
+        let error =
+            NodeConfig::sanitize(&node_config, NodeType::Validator, Some(ChainId::mainnet()))
+                .unwrap_err();
+        assert!(matches!(error, Error::ConfigSanitizerFailed(_, _)));
+
+        // Create a node config with the sanitizer disabled
+        let mut node_config = NodeConfig {
+            node_startup: NodeStartupConfig {
+                skip_config_sanitizer: true,
+                ..Default::default()
+            },
+            ..Default::default()
+        };
+
+        // Set a bad node config for mainnet
+        node_config.execution.paranoid_hot_potato_verification = false;
+
+        // Sanitize the config and verify the sanitizer passes
+        NodeConfig::sanitize(&node_config, NodeType::Validator, Some(ChainId::mainnet())).unwrap();
+    }
 
     #[test]
     fn test_sanitize_missing_pfn_network_configs() {

config/src/config/mod.rs

@@ -22,10 +22,11 @@ mod inspection_service_config;
 mod jwk_consensus_config;
 mod logger_config;
 mod mempool_config;
-mod netbench;
+mod netbench_config;
 mod network_config;
 mod node_config;
 mod node_config_loader;
+mod node_startup_config;
 mod override_node_config;
 mod peer_monitoring_config;
 mod persistable_config;
@@ -53,7 +54,7 @@ pub use indexer_table_info_config::*;
 pub use inspection_service_config::*;
 pub use logger_config::*;
 pub use mempool_config::*;
-pub use netbench::*;
+pub use netbench_config::*;
 pub use network_config::*;
 pub use node_config::*;
 pub use node_config_loader::sanitize_node_config;

config/src/config/node_config.rs

@@ -4,8 +4,9 @@
 use super::{DagConsensusConfig, IndexerTableInfoConfig};
 use crate::{
     config::{
-        dkg_config::DKGConfig, jwk_consensus_config::JWKConsensusConfig, netbench::NetbenchConfig,
-        node_config_loader::NodeConfigLoader, persistable_config::PersistableConfig,
+        dkg_config::DKGConfig, jwk_consensus_config::JWKConsensusConfig,
+        netbench_config::NetbenchConfig, node_config_loader::NodeConfigLoader,
+        node_startup_config::NodeStartupConfig, persistable_config::PersistableConfig,
         utils::RootPath, AdminServiceConfig, ApiConfig, BaseConfig, ConsensusConfig, Error,
         ExecutionConfig, IndexerConfig, IndexerGrpcConfig, InspectionServiceConfig, LoggerConfig,
         MempoolConfig, NetworkConfig, PeerMonitoringServiceConfig, SafetyRulesTestConfig,
@@ -67,6 +68,8 @@ pub struct NodeConfig {
     #[serde(default)]
     pub netbench: Option<NetbenchConfig>,
     #[serde(default)]
+    pub node_startup: NodeStartupConfig,
+    #[serde(default)]
     pub peer_monitoring_service: PeerMonitoringServiceConfig,
     #[serde(default)]
     pub state_sync: StateSyncConfig,

config/src/config/node_startup_config.rs

@@ -0,0 +1,36 @@
+// Copyright © Aptos Foundation
+// SPDX-License-Identifier: Apache-2.0
+
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Copy, Debug, Deserialize, PartialEq, Eq, Serialize)]
+#[serde(default, deny_unknown_fields)]
+pub struct NodeStartupConfig {
+    pub skip_config_optimizer: bool, // Whether or not to skip the config optimizer at startup
+    pub skip_config_sanitizer: bool, // Whether or not to skip the config sanitizer at startup
+}
+
+#[allow(clippy::derivable_impls)] // Derive default manually (this is safer than guessing defaults)
+impl Default for NodeStartupConfig {
+    fn default() -> Self {
+        Self {
+            skip_config_optimizer: false,
+            skip_config_sanitizer: false,
+        }
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn test_node_startup_config_default() {
+        // Create the default config
+        let config = NodeStartupConfig::default();
+
+        // Verify both fields are set to false
+        assert!(!config.skip_config_optimizer);
+        assert!(!config.skip_config_sanitizer);
+    }
+}