move admin router to rustfs, add pool stats/list admin api

ecstore/src/endpoints.rs

@@ -405,7 +405,7 @@ pub struct PoolEndpoints {
 }
 
 /// list of list of endpoints
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, Default)]
 pub struct EndpointServerPools(pub Vec<PoolEndpoints>);
 
 impl From<Vec<PoolEndpoints>> for EndpointServerPools {
@@ -430,6 +430,17 @@ impl EndpointServerPools {
     pub fn reset(&mut self, eps: Vec<PoolEndpoints>) {
         self.0 = eps;
     }
+    pub fn legacy(&self) -> bool {
+        self.0.len() == 1 && self.0[0].legacy
+    }
+    pub fn get_pool_idx(&self, cmd_line: &str) -> Option<usize> {
+        for (idx, eps) in self.0.iter().enumerate() {
+            if eps.cmd_line.as_str() == cmd_line {
+                return Some(idx);
+            }
+        }
+        None
+    }
     pub fn from_volumes(server_addr: &str, endpoints: Vec<String>) -> Result<(EndpointServerPools, SetupType)> {
         let layouts = DisksLayout::from_volumes(endpoints.as_slice())?;