Specify 'docker' host in CI case everywhere (EdgePartition test missed it).

Author: arssher

tests/lib/test_helper.py

@@ -52,12 +52,12 @@ def collectLogs(cls, referee=False):
     def setUpClass(cls):
         # resolve hostname once during start as aoipg or docker have problems
         # with resolving hostname under a load
-        host_ip = socket.gethostbyname(NODE_HOST)
+        cls.host_ip = socket.gethostbyname(NODE_HOST)
 
         cls.dsns = [
-            f"dbname=regression user=postgres host={host_ip} port=15432",
-            f"dbname=regression user=postgres host={host_ip} port=15433",
-            f"dbname=regression user=postgres host={host_ip} port=15434"
+            f"dbname=regression user=postgres host={cls.host_ip} port=15432",
+            f"dbname=regression user=postgres host={cls.host_ip} port=15433",
+            f"dbname=regression user=postgres host={cls.host_ip} port=15434"
         ]
         cls.test_ok = True
 

tests/test_recovery_random.py

@@ -53,7 +53,7 @@ def test_random_disasters(self):
             aggs_failure, aggs = self.performRandomFailure(
                 f'node{node_number}',
                 nodes_wait_for_commit=[n for n in range(3)],
-                node_wait_for_online=f"dbname=regression user=postgres host={NODE_HOST} port={port}",
+                node_wait_for_online=f"dbname=regression user=postgres host={self.host_ip} port={port}",
                 stop_load=True,
                 nodes_assert_commit_during_failure=
                 nodes_assert_commit_during_failure)
@@ -77,7 +77,7 @@ def test_edge_partition(self):
 
         aggs_failure, aggs = self.performFailure(
             EdgePartition('node1', 'node3'), node_wait_for_online=
-            "dbname=regression user=postgres host=127.0.0.1 port=15434",
+            "dbname=regression user=postgres host={self.host_ip} port=15434",
             stop_load=True)
 
         self.assertTrue(('commit' in aggs_failure[0]['transfer']['finish']) or