Configure supermajority threshold via envvars (#471)

.env.example

@@ -1,6 +1,7 @@
 # Environment variables for compose.yml file config.
 DOCKER_COMPOSE_LIBP2P_REPLICAS=1
 DOCKER_COMPOSE_LIBP2P_NODE_KEY_MASK=2000000000000000000000000000000000000000000000000000000000000000
+DOCKER_COMPOSE_SUPER_MAJORITY_THRESHOLD=1
 DOCKER_COMPOSE_ETCDCTL_ENDPOINTS=etcd:2379
 DOCKER_COMPOSE_ETCDCTL_API=3
 DOCKER_COMPOSE_BOOSTRAP_NET_NODE_KEY=1000000000000000000000000000000000000000000000000000000000000000

compose.yml

@@ -10,6 +10,7 @@ services:
     volumes:
       - ./testnet:/etc/nomos
     environment:
+      - OVERLAY_SUPER_MAJORITY_THRESHOLD=${DOCKER_COMPOSE_SUPER_MAJORITY_THRESHOLD:-1}
       - NET_NODE_KEY=${DOCKER_COMPOSE_BOOSTRAP_NET_NODE_KEY:-1000000000000000000000000000000000000000000000000000000000000000}
     command: /etc/nomos/bootstrap_config.yaml
 
@@ -28,6 +29,7 @@ services:
       - mix-node-1
       - mix-node-2
     environment:
+      - OVERLAY_SUPER_MAJORITY_THRESHOLD=${DOCKER_COMPOSE_SUPER_MAJORITY_THRESHOLD:-1}
       - LIBP2P_REPLICAS=${DOCKER_COMPOSE_LIBP2P_REPLICAS:-1}
       - ETCDCTL_ENDPOINTS=${DOCKER_COMPOSE_ETCDCTL_ENDPOINTS:-etcd:2379}
       - ETCDCTL_API=${DOCKER_COMPOSE_ETCDCTL_API:-3}

nodes/nomos-node/config.yaml

@@ -13,6 +13,7 @@ consensus:
       cur: 0
     committee_membership: !Sad
       entropy: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
+    super_majority_threshold: 1
 
 network:
   backend:

nodes/nomos-node/src/config.rs

@@ -96,10 +96,16 @@ pub struct OverlayArgs {
     pub overlay_leader: Option<String>,
 
     #[clap(
-        long = "overlay-leader-super-majority-threshold",
+        long = "overlay-number-of-committees",
         env = "OVERLAY_NUMBER_OF_COMMITTEES"
     )]
     pub overlay_number_of_committees: Option<usize>,
+
+    #[clap(
+        long = "overlay-super-majority-threshold",
+        env = "OVERLAY_SUPER_MAJORITY_THRESHOLD"
+    )]
+    pub overlay_super_majority_threshold: Option<f32>,
 }
 
 #[derive(Deserialize, Debug, Clone, Serialize)]
@@ -228,6 +234,7 @@ impl Config {
             overlay_nodes,
             overlay_leader,
             overlay_number_of_committees,
+            overlay_super_majority_threshold,
         } = overlay_args;
 
         if let Some(nodes) = overlay_nodes {
@@ -250,6 +257,11 @@ impl Config {
             self.consensus.overlay_settings.number_of_committees = committees;
         }
 
+        if let Some(super_majority_threshold) = overlay_super_majority_threshold {
+            self.consensus.overlay_settings.super_majority_threshold =
+                Some(super_majority_threshold.into());
+        }
+
         Ok(self)
     }
 }