diff --git a/roles/nova/vars/main.yml b/roles/nova/vars/main.yml
index 1b9c802..b7a93c2 100644
--- a/roles/nova/vars/main.yml
+++ b/roles/nova/vars/main.yml
@@ -72,6 +72,9 @@
       cors:
         allowed_origin: "*"
         allow_headers: "X-Auth-Token,X-OpenStack-Nova-API-Version"
+      database:
+        connection_recycle_time: 10
+        max_pool_size: 1
       filter_scheduler:
         enabled_filters:
           AvailabilityZoneFilter,
diff --git a/roles/nova/vars_test.go b/roles/nova/vars_test.go
new file mode 100644
index 0000000..716b946
--- /dev/null
+++ b/roles/nova/vars_test.go
@@ -0,0 +1,39 @@
+package nova
+
+import (
+	_ "embed"
+	"os"
+	"testing"
+
+	"github.com/goccy/go-yaml"
+	"github.com/stretchr/testify/require"
+
+	"github.com/vexxhost/atmosphere/internal/openstack_helm"
+	"github.com/vexxhost/atmosphere/internal/testutils"
+)
+
+var (
+	//go:embed vars/main.yml
+	varsFile []byte
+	vars     Vars
+)
+
+type Vars struct {
+	openstack_helm.HelmValues `yaml:"_nova_helm_values"`
+}
+
+func TestMain(m *testing.M) {
+	t := &testing.T{}
+	err := yaml.UnmarshalWithOptions(varsFile, &vars)
+	require.NoError(t, err)
+
+	code := m.Run()
+	os.Exit(code)
+}
+
+func TestHelmValues(t *testing.T) {
+	vals, err := openstack_helm.CoalescedHelmValues("../../charts/nova", &vars.HelmValues)
+	require.NoError(t, err)
+
+	testutils.TestDatabaseConf(t, vals.Conf.Nova.Database)
+}