Make user node declaration in config optional

Author: BHouwens

src/compute_raft.rs

@@ -1897,7 +1897,7 @@ mod test {
             compute_unicorn_fixed_param: get_test_common_unicorn(),
             compute_nodes: vec![compute_node],
             storage_nodes: vec![],
-            user_nodes: vec![],
+            user_nodes: Some(vec![]),
             compute_raft: 0,
             compute_raft_tick_timeout: 10,
             compute_mining_event_timeout: 500,

src/configurations.rs

@@ -113,7 +113,7 @@ pub struct ComputeNodeConfig {
     /// All storage nodes addresses: only use first
     pub storage_nodes: Vec<NodeSpec>,
     /// All user nodes addresses
-    pub user_nodes: Vec<NodeSpec>,
+    pub user_nodes: Option<Vec<NodeSpec>>,
     /// Whether compute node will use raft or act independently (0)
     pub compute_raft: usize,
     /// API port

src/test_utils.rs

@@ -1126,7 +1126,7 @@ async fn init_compute(
         compute_unicorn_fixed_param: get_test_common_unicorn(),
         compute_nodes: info.compute_nodes.clone(),
         storage_nodes: info.storage_nodes.clone(),
-        user_nodes: info.user_nodes.clone(),
+        user_nodes: Some(info.user_nodes.clone()),
         compute_raft,
         compute_raft_tick_timeout: 200 / config.test_duration_divider,
         compute_mining_event_timeout: 500 / config.test_duration_divider,