diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 856e5a6..65e566a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -20,6 +20,18 @@ jobs:
       FLAKE8: flake8
       PYTEST: pytest
       COVERAGE: coverage
+    services:
+      postgres:
+        image: postgres
+        env:
+          POSTGRES_PASSWORD: postgres
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - 5432:5432
     steps:
     - name: Checkout code
       uses: actions/checkout@v4
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 0000000..3662b39
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,26 @@
+import os
+
+import pytest
+from yhttp.ext.dbmanager import PostgresqlManager
+
+
+CICD = 'CI' in os.environ \
+    and os.environ['CI'] \
+    and 'GITHUB_RUN_ID' in os.environ
+
+
+@pytest.fixture
+def cicd():
+    return CICD
+
+
+@pytest.fixture
+def dbmanager(cicd):
+    host = CICD and 'localhost' or None
+    user = CICD and 'postgres' or None
+    pass_ = CICD and 'postgres' or None
+    return PostgresqlManager(
+        host=os.environ.get('YHTTP_DB_DEFAULT_HOST', host),
+        user=os.environ.get('YHTTP_DB_DEFAULT_ADMINUSER', user),
+        password=os.environ.get('YHTTP_DB_DEFAULT_ADMINPASS', pass_),
+    )
diff --git a/tests/test_cli.py b/tests/test_cli.py
index e185ad0..1e45802 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -1,9 +1,12 @@
+import os
+
 from bddcli import Given, Application as CLIApplication, status, stderr, \
     when, stdout
 import easycli
 from yhttp.core import Application
 
 from yhttp.ext.dbmanager import install
+from .conftest import CICD
 
 
 class Bar(easycli.SubCommand):
@@ -21,10 +24,17 @@ def __call__(self, args):
 install(app, cliarguments=[Bar])
 
 
-def test_applicationcli():
+def test_applicationcli(cicd):
     app.ready()
     cliapp = CLIApplication('example', 'tests.test_cli:app.climain')
-    with Given(cliapp, 'db'):
+    env = os.environ.copy()
+    if cicd:
+        env['YHTTP_DB_DEFAULT_HOST'] = host
+        env['YHTTP_DB_DEFAULT_ADMINUSER'] = user
+        env['YHTTP_DB_DEFAULT_ADMINPASS'] = pass_
+
+
+    with Given(cliapp, 'db', environ=env):
         assert stderr == ''
         assert status == 0
 
diff --git a/tests/test_dbmanager.py b/tests/test_dbmanager.py
index 1e87ec9..27052d0 100644
--- a/tests/test_dbmanager.py
+++ b/tests/test_dbmanager.py
@@ -4,25 +4,22 @@
 DBNAME = 'yhttp-postgesql-testing'
 
 
-def test_dbmanager():
-    # Instance with postgres identity framework.
-    dbm = PostgresqlManager()
-
+def test_dbmanager(dbmanager):
     # Cleanup
-    dbm.dropifexists(DBNAME)
+    dbmanager.dropifexists(DBNAME)
 
-    assert dbm.exists('postgres')
-    assert not dbm.exists(DBNAME)
+    assert dbmanager.exists('postgres')
+    assert not dbmanager.exists(DBNAME)
 
-    dbm.create(DBNAME)
-    assert dbm.exists(DBNAME)
+    dbmanager.create(DBNAME)
+    assert dbmanager.exists(DBNAME)
 
-    dbm.create(DBNAME, dropifexists=True)
-    assert dbm.exists(DBNAME)
+    dbmanager.create(DBNAME, dropifexists=True)
+    assert dbmanager.exists(DBNAME)
 
-    dbm.drop(DBNAME)
-    assert not dbm.exists(DBNAME)
+    dbmanager.drop(DBNAME)
+    assert not dbmanager.exists(DBNAME)
 
-    dbm.create(DBNAME)
-    dbm.dropifexists(DBNAME)
-    assert not dbm.exists(DBNAME)
+    dbmanager.create(DBNAME)
+    dbmanager.dropifexists(DBNAME)
+    assert not dbmanager.exists(DBNAME)