postgres-operator/pkg/cluster/sync_test.go

116 lines
3.4 KiB
Go

package cluster
import (
"testing"
"time"
"context"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"github.com/stretchr/testify/assert"
acidv1 "github.com/zalando/postgres-operator/pkg/apis/acid.zalan.do/v1"
fakeacidv1 "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned/fake"
"github.com/zalando/postgres-operator/pkg/util/config"
"github.com/zalando/postgres-operator/pkg/util/k8sutil"
"k8s.io/client-go/kubernetes/fake"
)
func newFakeK8sSyncClient() (k8sutil.KubernetesClient, *fake.Clientset) {
acidClientSet := fakeacidv1.NewSimpleClientset()
clientSet := fake.NewSimpleClientset()
return k8sutil.KubernetesClient{
PodsGetter: clientSet.CoreV1(),
PostgresqlsGetter: acidClientSet.AcidV1(),
StatefulSetsGetter: clientSet.AppsV1(),
}, clientSet
}
func TestSyncStatefulSetsAnnotations(t *testing.T) {
testName := "test syncing statefulsets annotations"
client, _ := newFakeK8sSyncClient()
clusterName := "acid-test-cluster"
namespace := "default"
inheritedAnnotation := "environment"
pg := acidv1.Postgresql{
ObjectMeta: metav1.ObjectMeta{
Name: clusterName,
Namespace: namespace,
Annotations: map[string]string{inheritedAnnotation: "test"},
},
Spec: acidv1.PostgresSpec{
Volume: acidv1.Volume{
Size: "1Gi",
},
},
}
var cluster = New(
Config{
OpConfig: config.Config{
PodManagementPolicy: "ordered_ready",
Resources: config.Resources{
ClusterLabels: map[string]string{"application": "spilo"},
ClusterNameLabel: "cluster-name",
DefaultCPURequest: "300m",
DefaultCPULimit: "300m",
DefaultMemoryRequest: "300Mi",
DefaultMemoryLimit: "300Mi",
InheritedAnnotations: []string{inheritedAnnotation},
PodRoleLabel: "spilo-role",
ResourceCheckInterval: time.Duration(3),
ResourceCheckTimeout: time.Duration(10),
},
},
}, client, pg, logger, eventRecorder)
cluster.Name = clusterName
cluster.Namespace = namespace
// create a statefulset
_, err := cluster.createStatefulSet()
assert.NoError(t, err)
// patch statefulset and add annotation
patchData, err := metaAnnotationsPatch(map[string]string{"test-anno": "true"})
assert.NoError(t, err)
newSts, err := cluster.KubeClient.StatefulSets(namespace).Patch(
context.TODO(),
clusterName,
types.MergePatchType,
[]byte(patchData),
metav1.PatchOptions{},
"")
assert.NoError(t, err)
cluster.Statefulset = newSts
// first compare running with desired statefulset - they should not match
// because no inherited annotations or downscaler annotations are configured
desiredSts, err := cluster.generateStatefulSet(&cluster.Postgresql.Spec)
assert.NoError(t, err)
cmp := cluster.compareStatefulSetWith(desiredSts)
if cmp.match {
t.Errorf("%s: match between current and desired statefulsets albeit differences: %#v", testName, cmp)
}
// now sync statefulset - the diff will trigger a replacement of the statefulset
cluster.syncStatefulSet()
// compare again after the SYNC - must be identical to the desired state
cmp = cluster.compareStatefulSetWith(desiredSts)
if !cmp.match {
t.Errorf("%s: current and desired statefulsets are not matching %#v", testName, cmp)
}
// check if inherited annotation exists
if _, exists := desiredSts.Annotations[inheritedAnnotation]; !exists {
t.Errorf("%s: inherited annotation not found in desired statefulset: %#v", testName, desiredSts.Annotations)
}
}