diff --git a/.github/workflows/cluster_endtoend_11.yml b/.github/workflows/cluster_endtoend_11.yml
index bbbc88d50f8..a6ad3e6ca96 100644
--- a/.github/workflows/cluster_endtoend_11.yml
+++ b/.github/workflows/cluster_endtoend_11.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (11)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_12.yml b/.github/workflows/cluster_endtoend_12.yml
index 31e692b2e17..149e53b5f11 100644
--- a/.github/workflows/cluster_endtoend_12.yml
+++ b/.github/workflows/cluster_endtoend_12.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (12)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_13.yml b/.github/workflows/cluster_endtoend_13.yml
index 2db6ae7c948..ac7145a9d36 100644
--- a/.github/workflows/cluster_endtoend_13.yml
+++ b/.github/workflows/cluster_endtoend_13.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (13)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_14.yml b/.github/workflows/cluster_endtoend_14.yml
index 393be5a864e..54336976900 100644
--- a/.github/workflows/cluster_endtoend_14.yml
+++ b/.github/workflows/cluster_endtoend_14.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (14)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_15.yml b/.github/workflows/cluster_endtoend_15.yml
index 45efc3bdb55..fef2846e66b 100644
--- a/.github/workflows/cluster_endtoend_15.yml
+++ b/.github/workflows/cluster_endtoend_15.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (15)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_16.yml b/.github/workflows/cluster_endtoend_16.yml
index 77bf0a59d85..e33dd8e1ea8 100644
--- a/.github/workflows/cluster_endtoend_16.yml
+++ b/.github/workflows/cluster_endtoend_16.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (16)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_17.yml b/.github/workflows/cluster_endtoend_17.yml
index 71cd82b26ec..b4dea05e571 100644
--- a/.github/workflows/cluster_endtoend_17.yml
+++ b/.github/workflows/cluster_endtoend_17.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (17)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_18.yml b/.github/workflows/cluster_endtoend_18.yml
index ce422572211..33fa04723eb 100644
--- a/.github/workflows/cluster_endtoend_18.yml
+++ b/.github/workflows/cluster_endtoend_18.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (18)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_19.yml b/.github/workflows/cluster_endtoend_19.yml
index 2fe693a2caa..2e6458337d7 100644
--- a/.github/workflows/cluster_endtoend_19.yml
+++ b/.github/workflows/cluster_endtoend_19.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (19)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_20.yml b/.github/workflows/cluster_endtoend_20.yml
index 4149f01461e..b5e502771a0 100644
--- a/.github/workflows/cluster_endtoend_20.yml
+++ b/.github/workflows/cluster_endtoend_20.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (20)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_21.yml b/.github/workflows/cluster_endtoend_21.yml
index 9d5672301c0..9234fb533df 100644
--- a/.github/workflows/cluster_endtoend_21.yml
+++ b/.github/workflows/cluster_endtoend_21.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (21)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_22.yml b/.github/workflows/cluster_endtoend_22.yml
index 2e499eb2fd1..6aeb60371fc 100644
--- a/.github/workflows/cluster_endtoend_22.yml
+++ b/.github/workflows/cluster_endtoend_22.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (22)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_23.yml b/.github/workflows/cluster_endtoend_23.yml
index 0e30bd561c5..b36d852fb59 100644
--- a/.github/workflows/cluster_endtoend_23.yml
+++ b/.github/workflows/cluster_endtoend_23.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (23)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_24.yml b/.github/workflows/cluster_endtoend_24.yml
index d4c8bd8bced..8baea8ff511 100644
--- a/.github/workflows/cluster_endtoend_24.yml
+++ b/.github/workflows/cluster_endtoend_24.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (24)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_26.yml b/.github/workflows/cluster_endtoend_26.yml
index 998162f91bd..3f6603c7d23 100644
--- a/.github/workflows/cluster_endtoend_26.yml
+++ b/.github/workflows/cluster_endtoend_26.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (26)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_27.yml b/.github/workflows/cluster_endtoend_27.yml
index 0bdb3541987..c7382cf9f2f 100644
--- a/.github/workflows/cluster_endtoend_27.yml
+++ b/.github/workflows/cluster_endtoend_27.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (27)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_onlineddl_ghost.yml b/.github/workflows/cluster_endtoend_onlineddl_ghost.yml
index de67341f9f8..c2b9e3edbef 100644
--- a/.github/workflows/cluster_endtoend_onlineddl_ghost.yml
+++ b/.github/workflows/cluster_endtoend_onlineddl_ghost.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (onlineddl_ghost)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_onlineddl_vrepl.yml b/.github/workflows/cluster_endtoend_onlineddl_vrepl.yml
index a3aee6a6ab5..a9a24072bb9 100644
--- a/.github/workflows/cluster_endtoend_onlineddl_vrepl.yml
+++ b/.github/workflows/cluster_endtoend_onlineddl_vrepl.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (onlineddl_vrepl)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_onlineddl_vrepl_stress.yml b/.github/workflows/cluster_endtoend_onlineddl_vrepl_stress.yml
index 5ae84cee56e..b89c31e4019 100644
--- a/.github/workflows/cluster_endtoend_onlineddl_vrepl_stress.yml
+++ b/.github/workflows/cluster_endtoend_onlineddl_vrepl_stress.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (onlineddl_vrepl_stress)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_vreplication_basic.yml b/.github/workflows/cluster_endtoend_vreplication_basic.yml
index b5d33ed4b88..9c3b59123d9 100644
--- a/.github/workflows/cluster_endtoend_vreplication_basic.yml
+++ b/.github/workflows/cluster_endtoend_vreplication_basic.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (vreplication_basic)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_vreplication_cellalias.yml b/.github/workflows/cluster_endtoend_vreplication_cellalias.yml
index 8aad8c39334..eccae39a07c 100644
--- a/.github/workflows/cluster_endtoend_vreplication_cellalias.yml
+++ b/.github/workflows/cluster_endtoend_vreplication_cellalias.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (vreplication_cellalias)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_vreplication_migrate.yml b/.github/workflows/cluster_endtoend_vreplication_migrate.yml
index 8b7d9f69c8d..b283b13a4a3 100644
--- a/.github/workflows/cluster_endtoend_vreplication_migrate.yml
+++ b/.github/workflows/cluster_endtoend_vreplication_migrate.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (vreplication_migrate)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_vreplication_multicell.yml b/.github/workflows/cluster_endtoend_vreplication_multicell.yml
index 7ab7a36219c..6dca34502e5 100644
--- a/.github/workflows/cluster_endtoend_vreplication_multicell.yml
+++ b/.github/workflows/cluster_endtoend_vreplication_multicell.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (vreplication_multicell)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/cluster_endtoend_vreplication_v2.yml b/.github/workflows/cluster_endtoend_vreplication_v2.yml
index 6310706b7d7..742483c3c78 100644
--- a/.github/workflows/cluster_endtoend_vreplication_v2.yml
+++ b/.github/workflows/cluster_endtoend_vreplication_v2.yml
@@ -6,7 +6,7 @@ jobs:
 
   build:
     name: Run endtoend tests on Cluster (vreplication_v2)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/endtoend.yml b/.github/workflows/endtoend.yml
index 026e8f1f4ef..8be2dbb3179 100644
--- a/.github/workflows/endtoend.yml
+++ b/.github/workflows/endtoend.yml
@@ -4,7 +4,7 @@ jobs:
 
   build:
     name: End-to-End Test
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
 
     - name: Set up Go
diff --git a/.github/workflows/unit_race.yml b/.github/workflows/unit_race.yml
index 7e71449de83..d280afe62a6 100644
--- a/.github/workflows/unit_race.yml
+++ b/.github/workflows/unit_race.yml
@@ -4,7 +4,7 @@ jobs:
 
   build:
     name: Unit Test (Race)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
 
     - name: Set up Go
diff --git a/.github/workflows/unit_test_mariadb101.yml b/.github/workflows/unit_test_mariadb101.yml
index f0a3615dff2..f3e08c7df17 100644
--- a/.github/workflows/unit_test_mariadb101.yml
+++ b/.github/workflows/unit_test_mariadb101.yml
@@ -5,7 +5,7 @@ on: [push, pull_request]
 jobs:
 
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/unit_test_mariadb102.yml b/.github/workflows/unit_test_mariadb102.yml
index 408aa1adfe1..be554bc6e41 100644
--- a/.github/workflows/unit_test_mariadb102.yml
+++ b/.github/workflows/unit_test_mariadb102.yml
@@ -5,7 +5,7 @@ on: [push, pull_request]
 jobs:
 
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/unit_test_mariadb103.yml b/.github/workflows/unit_test_mariadb103.yml
index dacb48984d5..73bbe067dd9 100644
--- a/.github/workflows/unit_test_mariadb103.yml
+++ b/.github/workflows/unit_test_mariadb103.yml
@@ -5,7 +5,7 @@ on: [push, pull_request]
 jobs:
 
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/unit_test_mysql57.yml b/.github/workflows/unit_test_mysql57.yml
index c244d9e7fd9..e9eabae2e5d 100644
--- a/.github/workflows/unit_test_mysql57.yml
+++ b/.github/workflows/unit_test_mysql57.yml
@@ -5,7 +5,7 @@ on: [push, pull_request]
 jobs:
 
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/unit_test_mysql80.yml b/.github/workflows/unit_test_mysql80.yml
index 50eb0109af3..57cd16f2487 100644
--- a/.github/workflows/unit_test_mysql80.yml
+++ b/.github/workflows/unit_test_mysql80.yml
@@ -5,7 +5,7 @@ on: [push, pull_request]
 jobs:
 
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/.github/workflows/unit_test_percona56.yml b/.github/workflows/unit_test_percona56.yml
index 9b6cda4ca1d..937e32bf34e 100644
--- a/.github/workflows/unit_test_percona56.yml
+++ b/.github/workflows/unit_test_percona56.yml
@@ -5,7 +5,7 @@ on: [push, pull_request]
 jobs:
 
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/test/templates/cluster_endtoend_test.tpl b/test/templates/cluster_endtoend_test.tpl
index fb9b0a5d12b..2f4451ad3c2 100644
--- a/test/templates/cluster_endtoend_test.tpl
+++ b/test/templates/cluster_endtoend_test.tpl
@@ -4,7 +4,7 @@ jobs:
 
   build:
     name: Run endtoend tests on {{.Name}}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go
diff --git a/test/templates/unit_test.tpl b/test/templates/unit_test.tpl
index 967e8c86eac..31b4c7146f8 100644
--- a/test/templates/unit_test.tpl
+++ b/test/templates/unit_test.tpl
@@ -3,7 +3,7 @@ on: [push, pull_request]
 jobs:
 
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
 
     steps:
     - name: Set up Go