Make the dev profile a local testnet profile

Restores a dev profile which only has one validator, locally running.

deploy/docker-compose.yml

@@ -46,7 +46,7 @@ services:
     profiles:
       - base
     environment:
-      CHAIN: dev
+      CHAIN: local
       NAME: base
 
   serai-alice:
@@ -59,7 +59,7 @@ services:
       - cluster-lg
       - cluster-coins-lg
     environment:
-      CHAIN: dev
+      CHAIN: local
       NAME: alice
       VALIDATOR: true
 
@@ -73,7 +73,7 @@ services:
       - cluster-lg
       - cluster-coins-lg
     environment:
-      CHAIN: dev
+      CHAIN: local
       NAME: bob
       VALIDATOR: true
 
@@ -87,7 +87,7 @@ services:
       - cluster-lg
       - cluster-coins-lg
     environment:
-      CHAIN: dev
+      CHAIN: local
       NAME: charlie
       VALIDATOR: true
 
@@ -99,7 +99,7 @@ services:
       - cluster-lg
       - cluster-coins-lg
     environment:
-      CHAIN: dev
+      CHAIN: local
       NAME: dave
 
   serai-eve:
@@ -110,7 +110,7 @@ services:
       - cluster-lg
       - cluster-coins-lg
     environment:
-      CHAIN: dev
+      CHAIN: local
       NAME: eve
 
   serai-ferdie:
@@ -121,7 +121,7 @@ services:
       - cluster-lg
       - cluster-coins-lg
     environment:
-      CHAIN: dev
+      CHAIN: local
       NAME: ferdie
 
   # Processor Services

substrate/node/src/chain_spec.rs

@@ -18,7 +18,11 @@ fn account_id_from_name(name: &'static str) -> AccountId {
   insecure_pair_from_name(name).public()
 }
 
-fn testnet_genesis(wasm_binary: &[u8], endowed_accounts: Vec<AccountId>) -> GenesisConfig {
+fn testnet_genesis(
+  wasm_binary: &[u8],
+  validators: &[&'static str],
+  endowed_accounts: Vec<AccountId>,
+) -> GenesisConfig {
   let session_key = |name| {
     let key = account_id_from_name(name);
     (key, key, SessionKeys { tendermint: Public::from(key) })
@@ -30,9 +34,7 @@ fn testnet_genesis(wasm_binary: &[u8], endowed_accounts: Vec<AccountId>) -> Gene
       balances: endowed_accounts.iter().cloned().map(|k| (k, 1 << 60)).collect(),
     },
     transaction_payment: Default::default(),
-    session: SessionConfig {
+    session: SessionConfig { keys: validators.iter().map(|name| session_key(*name)).collect() },
-      keys: vec![session_key("Alice"), session_key("Bob"), session_key("Charlie")],
-    },
   }
 }
 
@@ -48,6 +50,51 @@ pub fn development_config() -> Result<ChainSpec, &'static str> {
     || {
       testnet_genesis(
         wasm_binary,
+        &["Alice"],
+        vec![
+          account_id_from_name("Alice"),
+          account_id_from_name("Bob"),
+          account_id_from_name("Charlie"),
+          account_id_from_name("Dave"),
+          account_id_from_name("Eve"),
+          account_id_from_name("Ferdie"),
+          account_id_from_name("Alice//stash"),
+          account_id_from_name("Bob//stash"),
+          account_id_from_name("Charlie//stash"),
+          account_id_from_name("Dave//stash"),
+          account_id_from_name("Eve//stash"),
+          account_id_from_name("Ferdie//stash"),
+        ],
+      )
+    },
+    // Bootnodes
+    vec![],
+    // Telemetry
+    None,
+    // Protocol ID
+    Some("serai"),
+    // Fork ID
+    None,
+    // Properties
+    None,
+    // Extensions
+    None,
+  ))
+}
+
+pub fn testnet_config() -> Result<ChainSpec, &'static str> {
+  let wasm_binary = WASM_BINARY.ok_or("Testnet wasm not available")?;
+
+  Ok(ChainSpec::from_genesis(
+    // Name
+    "Local Test Network",
+    // ID
+    "local",
+    ChainType::Local,
+    || {
+      testnet_genesis(
+        wasm_binary,
+        &["Alice", "Bob", "Charlie"],
         vec![
           account_id_from_name("Alice"),
           account_id_from_name("Bob"),

substrate/node/src/command.rs

@@ -39,6 +39,7 @@ impl SubstrateCli for Cli {
   fn load_spec(&self, id: &str) -> Result<Box<dyn sc_service::ChainSpec>, String> {
     match id {
       "dev" => Ok(Box::new(chain_spec::development_config()?)),
+      "local" => Ok(Box::new(chain_spec::testnet_config()?)),
       _ => panic!("Unknown network ID"),
     }
   }