Fix password authentication in worker (#3124)

python/ray/test/cluster_utils.py

@@ -37,7 +37,10 @@ class Cluster(object):
             head_node_args = head_node_args or {}
             self.add_node(**head_node_args)
             if connect:
-                ray.init(redis_address=self.redis_address)
+                redis_password = head_node_args.get("redis_password")
+                ray.init(
+                    redis_address=self.redis_address,
+                    redis_password=redis_password)
 
     def add_node(self, **override_kwargs):
         """Adds a node to the local Ray Cluster.

python/ray/test/test_ray_init.py

@@ -7,6 +7,7 @@ import pytest
 import redis
 
 import ray
+from ray.test.cluster_utils import Cluster
 
 
 @pytest.fixture
@@ -29,7 +30,6 @@ class TestRedisPassword(object):
         os.environ.get("RAY_USE_NEW_GCS") == "on",
         reason="New GCS API doesn't support Redis authentication yet.")
     def test_redis_password(self, password, shutdown_only):
-        # Workaround for https://github.com/ray-project/ray/issues/3045
         @ray.remote
         def f():
             return 1
@@ -52,3 +52,19 @@ class TestRedisPassword(object):
         redis_client = redis.StrictRedis(
             host=redis_ip, port=redis_port, password=password)
         assert redis_client.ping()
+
+    @pytest.mark.skipif(
+        os.environ.get("RAY_USE_NEW_GCS") == "on",
+        reason="New GCS API doesn't support Redis authentication yet.")
+    def test_redis_password_cluster(self, password, shutdown_only):
+        @ray.remote
+        def f():
+            return 1
+
+        node_args = {"redis_password": password}
+        cluster = Cluster(
+            initialize_head=True, connect=True, head_node_args=node_args)
+        cluster.add_node(**node_args)
+
+        object_id = f.remote()
+        ray.get(object_id)