modify sharding.yaml

sharding-jdbc/sharding-jdbc-orchestration/src/test/resources/yaml/unit/sharding.yaml

 dataSources:
-  ds_0: !!org.apache.commons.dbcp2.BasicDataSource
+  ds_m: !!org.apache.commons.dbcp2.BasicDataSource
     driverClassName: org.h2.Driver
-    url: jdbc:h2:mem:ds_0;DB_CLOSE_DELAY=-1;DATABASE_TO_UPPER=false;MODE=MYSQL
+    url: jdbc:h2:mem:ds_m;DB_CLOSE_DELAY=-1;DATABASE_TO_UPPER=false;MODE=MYSQL
     username: sa
     password:
-  ds_1: !!org.apache.commons.dbcp2.BasicDataSource
+  ds_s: !!org.apache.commons.dbcp2.BasicDataSource
     driverClassName: org.h2.Driver
-    url: jdbc:h2:mem:ds_1;DB_CLOSE_DELAY=-1;DATABASE_TO_UPPER=false;MODE=MYSQL
+    url: jdbc:h2:mem:ds_s;DB_CLOSE_DELAY=-1;DATABASE_TO_UPPER=false;MODE=MYSQL
     username: sa
     password:
     
 shardingRule:
   tables:
     t_order:
-      actualDataNodes: ds_${0..1}.t_order_${0..1}
+      actualDataNodes: ds_ms.t_order_${0..1}
       databaseStrategy:
         inline:
           shardingColumn: user_id
@@ -25,7 +25,7 @@ shardingRule:
       keyGenerator:
         column: order_id
     t_order_item:
-      actualDataNodes: ds_${0..1}.t_order_item_${0..1}
+      actualDataNodes: ds_ms.t_order_item_${0..1}
       tableStrategy:
         inline:
           shardingColumn: order_id
@@ -34,11 +34,15 @@ shardingRule:
         column: order_item_id
   bindingTables:
     - t_order,t_order_item
-  defaultDataSourceName: ds_1
+  masterSlaveRules:
+    ds_ms:
+      masterDataSourceName: ds_m
+      slaveDataSourceNames:
+        - ds_s
   defaultDatabaseStrategy:
     inline:
       shardingColumn: user_id
-      algorithmExpression: ds_${user_id % 2}
+      algorithmExpression: ds_ms_${user_id % 2}
   defaultTableStrategy:
     none:
   defaultKeyGenerator: