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make controller logic independable with certain tidbcluster label #1419

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merged 3 commits into from
Dec 26, 2019
Merged

make controller logic independable with certain tidbcluster label #1419

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84f1ab0
make controller logic independable with certain tidbcluster label
aylei Dec 25, 2019
246f90f
Update tidbcluster.go
aylei Dec 25, 2019
dce4b10
Merge branch 'master' into fix-1418
sre-bot Dec 26, 2019
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12 changes: 12 additions & 0 deletions pkg/apis/pingcap/v1alpha1/tidbcluster.go
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ package v1alpha1
import (
"fmt"

"github.com/pingcap/tidb-operator/pkg/label"
corev1 "k8s.io/api/core/v1"
)

Expand Down Expand Up @@ -403,3 +404,14 @@ func (tc *TidbCluster) Timezone() string {
}
return tz
}

func (tc *TidbCluster) GetInstanceName() string {
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Alternatively, we could define a GetLabels() method and shadow the one of ObjectMeta so that the controller logic don't have to be modified, but that way we have to copy a map every time this method get called.

labels := tc.ObjectMeta.GetLabels()
// Keep backward compatibility for helm.
// This introduce a hidden danger that change this label will trigger rolling-update of most of the components
// TODO(aylei): disallow mutation of this label or adding this label with value other than the cluster name in ValidateUpdate()
if inst, ok := labels[label.InstanceLabelKey]; ok {
return inst
}
return tc.Name
}
2 changes: 1 addition & 1 deletion pkg/manager/member/orphan_pods_cleaner.go
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Original file line number Diff line number Diff line change
Expand Up @@ -71,7 +71,7 @@ func (opc *orphanPodsCleaner) Clean(tc *v1alpha1.TidbCluster) (map[string]string
// for unit test
skipReason := map[string]string{}

selector, err := label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).Selector()
selector, err := label.New().Instance(tc.GetInstanceName()).Selector()
if err != nil {
return skipReason, err
}
Expand Down
26 changes: 13 additions & 13 deletions pkg/manager/member/orphan_pods_cleaner_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -86,7 +86,7 @@ func TestOrphanPodsCleanerClean(t *testing.T) {
ObjectMeta: metav1.ObjectMeta{
Name: "pod-1",
Namespace: metav1.NamespaceDefault,
Labels: label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).TiDB().Labels(),
Labels: label.New().Instance(tc.GetInstanceName()).TiDB().Labels(),
},
},
},
Expand All @@ -104,7 +104,7 @@ func TestOrphanPodsCleanerClean(t *testing.T) {
ObjectMeta: metav1.ObjectMeta{
Name: "pod-1",
Namespace: metav1.NamespaceDefault,
Labels: label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).PD().Labels(),
Labels: label.New().Instance(tc.GetInstanceName()).PD().Labels(),
},
Status: corev1.PodStatus{
Phase: corev1.PodPending,
Expand All @@ -125,7 +125,7 @@ func TestOrphanPodsCleanerClean(t *testing.T) {
ObjectMeta: metav1.ObjectMeta{
Name: "pod-1",
Namespace: metav1.NamespaceDefault,
Labels: label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).PD().Labels(),
Labels: label.New().Instance(tc.GetInstanceName()).PD().Labels(),
},
Spec: corev1.PodSpec{
Volumes: []corev1.Volume{
Expand Down Expand Up @@ -158,7 +158,7 @@ func TestOrphanPodsCleanerClean(t *testing.T) {
ObjectMeta: metav1.ObjectMeta{
Name: "pod-1",
Namespace: metav1.NamespaceDefault,
Labels: label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).PD().Labels(),
Labels: label.New().Instance(tc.GetInstanceName()).PD().Labels(),
},
Spec: corev1.PodSpec{
Volumes: []corev1.Volume{
Expand Down Expand Up @@ -198,7 +198,7 @@ func TestOrphanPodsCleanerClean(t *testing.T) {
ObjectMeta: metav1.ObjectMeta{
Name: "pod-1",
Namespace: metav1.NamespaceDefault,
Labels: label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).PD().Labels(),
Labels: label.New().Instance(tc.GetInstanceName()).PD().Labels(),
},
Spec: corev1.PodSpec{
Volumes: []corev1.Volume{
Expand Down Expand Up @@ -233,7 +233,7 @@ func TestOrphanPodsCleanerClean(t *testing.T) {
ObjectMeta: metav1.ObjectMeta{
Name: "pod-1",
Namespace: metav1.NamespaceDefault,
Labels: label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).PD().Labels(),
Labels: label.New().Instance(tc.GetInstanceName()).PD().Labels(),
},
Spec: corev1.PodSpec{
Volumes: []corev1.Volume{
Expand Down Expand Up @@ -268,7 +268,7 @@ func TestOrphanPodsCleanerClean(t *testing.T) {
UID: "pod-1-uid",
ResourceVersion: "1",
Namespace: metav1.NamespaceDefault,
Labels: label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).PD().Labels(),
Labels: label.New().Instance(tc.GetInstanceName()).PD().Labels(),
},
Spec: corev1.PodSpec{
Volumes: []corev1.Volume{
Expand All @@ -294,7 +294,7 @@ func TestOrphanPodsCleanerClean(t *testing.T) {
UID: "pod-1-uid",
ResourceVersion: "2",
Namespace: metav1.NamespaceDefault,
Labels: label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).PD().Labels(),
Labels: label.New().Instance(tc.GetInstanceName()).PD().Labels(),
},
Spec: corev1.PodSpec{
Volumes: []corev1.Volume{
Expand Down Expand Up @@ -327,7 +327,7 @@ func TestOrphanPodsCleanerClean(t *testing.T) {
ObjectMeta: metav1.ObjectMeta{
Name: "pod-1",
Namespace: metav1.NamespaceDefault,
Labels: label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).PD().Labels(),
Labels: label.New().Instance(tc.GetInstanceName()).PD().Labels(),
},
Spec: corev1.PodSpec{
Volumes: []corev1.Volume{
Expand Down Expand Up @@ -361,7 +361,7 @@ func TestOrphanPodsCleanerClean(t *testing.T) {
ObjectMeta: metav1.ObjectMeta{
Name: "pod-1",
Namespace: metav1.NamespaceDefault,
Labels: label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).PD().Labels(),
Labels: label.New().Instance(tc.GetInstanceName()).PD().Labels(),
},
Spec: corev1.PodSpec{
Volumes: []corev1.Volume{
Expand All @@ -383,7 +383,7 @@ func TestOrphanPodsCleanerClean(t *testing.T) {
ObjectMeta: metav1.ObjectMeta{
Name: "pod-2",
Namespace: metav1.NamespaceDefault,
Labels: label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).TiKV().Labels(),
Labels: label.New().Instance(tc.GetInstanceName()).TiKV().Labels(),
},
Spec: corev1.PodSpec{
Volumes: []corev1.Volume{
Expand All @@ -405,7 +405,7 @@ func TestOrphanPodsCleanerClean(t *testing.T) {
ObjectMeta: metav1.ObjectMeta{
Name: "pod-3",
Namespace: metav1.NamespaceDefault,
Labels: label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).TiKV().Labels(),
Labels: label.New().Instance(tc.GetInstanceName()).TiKV().Labels(),
},
Spec: corev1.PodSpec{
Volumes: []corev1.Volume{
Expand All @@ -427,7 +427,7 @@ func TestOrphanPodsCleanerClean(t *testing.T) {
ObjectMeta: metav1.ObjectMeta{
Name: "pod-4",
Namespace: metav1.NamespaceDefault,
Labels: label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).TiDB().Labels(),
Labels: label.New().Instance(tc.GetInstanceName()).TiDB().Labels(),
},
Spec: corev1.PodSpec{
Volumes: []corev1.Volume{
Expand Down
10 changes: 5 additions & 5 deletions pkg/manager/member/pd_member_manager.go
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Expand Up @@ -438,7 +438,7 @@ func (pmm *pdMemberManager) getNewPDServiceForTidbCluster(tc *v1alpha1.TidbClust
ns := tc.Namespace
tcName := tc.Name
svcName := controller.PDMemberName(tcName)
instanceName := tc.GetLabels()[label.InstanceLabelKey]
instanceName := tc.GetInstanceName()
pdLabel := label.New().Instance(instanceName).PD().Labels()

return &corev1.Service{
Expand Down Expand Up @@ -467,7 +467,7 @@ func getNewPDHeadlessServiceForTidbCluster(tc *v1alpha1.TidbCluster) *corev1.Ser
ns := tc.Namespace
tcName := tc.Name
svcName := controller.PDPeerMemberName(tcName)
instanceName := tc.GetLabels()[label.InstanceLabelKey]
instanceName := tc.GetInstanceName()
pdLabel := label.New().Instance(instanceName).PD().Labels()

return &corev1.Service{
Expand Down Expand Up @@ -498,7 +498,7 @@ func (pmm *pdMemberManager) pdStatefulSetIsUpgrading(set *apps.StatefulSet, tc *
return true, nil
}
selector, err := label.New().
Instance(tc.GetLabels()[label.InstanceLabelKey]).
Instance(tc.GetInstanceName()).
PD().
Selector()
if err != nil {
Expand All @@ -523,7 +523,7 @@ func (pmm *pdMemberManager) pdStatefulSetIsUpgrading(set *apps.StatefulSet, tc *
func getNewPDSetForTidbCluster(tc *v1alpha1.TidbCluster, cm *corev1.ConfigMap) (*apps.StatefulSet, error) {
ns := tc.Namespace
tcName := tc.Name
instanceName := tc.GetLabels()[label.InstanceLabelKey]
instanceName := tc.GetInstanceName()
pdConfigMap := controller.MemberConfigMapName(tc, v1alpha1.PDMemberType)
if cm != nil {
pdConfigMap = cm.Name
Expand Down Expand Up @@ -728,7 +728,7 @@ func getPDConfigMap(tc *v1alpha1.TidbCluster) (*corev1.ConfigMap, error) {
return nil, err
}

instanceName := tc.GetLabels()[label.InstanceLabelKey]
instanceName := tc.GetInstanceName()
pdLabel := label.New().Instance(instanceName).PD().Labels()
cm := &corev1.ConfigMap{
ObjectMeta: metav1.ObjectMeta{
Expand Down
8 changes: 4 additions & 4 deletions pkg/manager/member/pd_member_manager_test.go
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Expand Up @@ -447,7 +447,7 @@ func TestPDMemberManagerPdStatefulSetIsUpgrading(t *testing.T) {
Name: ordinalPodName(v1alpha1.PDMemberType, tc.GetName(), 0),
Namespace: metav1.NamespaceDefault,
Annotations: map[string]string{},
Labels: label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).PD().Labels(),
Labels: label.New().Instance(tc.GetInstanceName()).PD().Labels(),
},
}
if test.updatePod != nil {
Expand Down Expand Up @@ -849,7 +849,7 @@ func TestGetNewPDHeadlessServiceForTidbCluster(t *testing.T) {
Labels: map[string]string{
"app.kubernetes.io/name": "tidb-cluster",
"app.kubernetes.io/managed-by": "tidb-operator",
"app.kubernetes.io/instance": "",
"app.kubernetes.io/instance": "foo",
"app.kubernetes.io/component": "pd",
},
OwnerReferences: []metav1.OwnerReference{
Expand Down Expand Up @@ -880,7 +880,7 @@ func TestGetNewPDHeadlessServiceForTidbCluster(t *testing.T) {
Selector: map[string]string{
"app.kubernetes.io/name": "tidb-cluster",
"app.kubernetes.io/managed-by": "tidb-operator",
"app.kubernetes.io/instance": "",
"app.kubernetes.io/instance": "foo",
"app.kubernetes.io/component": "pd",
},
PublishNotReadyAddresses: true,
Expand Down Expand Up @@ -1088,7 +1088,7 @@ func TestGetPDConfigMap(t *testing.T) {
Labels: map[string]string{
"app.kubernetes.io/name": "tidb-cluster",
"app.kubernetes.io/managed-by": "tidb-operator",
"app.kubernetes.io/instance": "",
"app.kubernetes.io/instance": "foo",
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Use const vars in label package to replace these keys?

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I think both make sense, by not using the const var, the correctness of the labelKey itself is also tested, it just depends on the purpose of the UTs

"app.kubernetes.io/component": "pd",
},
OwnerReferences: []metav1.OwnerReference{
Expand Down
4 changes: 2 additions & 2 deletions pkg/manager/member/pump_member_manager.go
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Expand Up @@ -402,7 +402,7 @@ func getNewPumpStatefulSet(tc *v1alpha1.TidbCluster, cm *corev1.ConfigMap) (*app
}

func getPumpMeta(tc *v1alpha1.TidbCluster, nameFunc func(string) string) (metav1.ObjectMeta, label.Label) {
instanceName := tc.GetLabels()[label.InstanceLabelKey]
instanceName := tc.GetInstanceName()
pumpLabel := label.New().Instance(instanceName).Pump()

objMeta := metav1.ObjectMeta{
Expand Down Expand Up @@ -453,7 +453,7 @@ func (pmm *pumpMemberManager) pumpStatefulSetIsUpgrading(set *apps.StatefulSet,
return true, nil
}
selector, err := label.New().
Instance(tc.GetLabels()[label.InstanceLabelKey]).
Instance(tc.GetInstanceName()).
Pump().
Selector()
if err != nil {
Expand Down
8 changes: 4 additions & 4 deletions pkg/manager/member/pump_member_manager_test.go
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Expand Up @@ -548,7 +548,7 @@ func TestGetNewPumpHeadlessService(t *testing.T) {
Labels: map[string]string{
"app.kubernetes.io/name": "tidb-cluster",
"app.kubernetes.io/managed-by": "tidb-operator",
"app.kubernetes.io/instance": "",
"app.kubernetes.io/instance": "foo",
"app.kubernetes.io/component": "pump",
},
OwnerReferences: []metav1.OwnerReference{
Expand Down Expand Up @@ -579,7 +579,7 @@ func TestGetNewPumpHeadlessService(t *testing.T) {
Selector: map[string]string{
"app.kubernetes.io/name": "tidb-cluster",
"app.kubernetes.io/managed-by": "tidb-operator",
"app.kubernetes.io/instance": "",
"app.kubernetes.io/instance": "foo",
"app.kubernetes.io/component": "pump",
},
PublishNotReadyAddresses: true,
Expand Down Expand Up @@ -627,7 +627,7 @@ func TestGetNewPumpConfigMap(t *testing.T) {
Labels: map[string]string{
"app.kubernetes.io/name": "tidb-cluster",
"app.kubernetes.io/managed-by": "tidb-operator",
"app.kubernetes.io/instance": "",
"app.kubernetes.io/instance": "foo",
"app.kubernetes.io/component": "pump",
},
OwnerReferences: []metav1.OwnerReference{
Expand Down Expand Up @@ -676,7 +676,7 @@ func TestGetNewPumpConfigMap(t *testing.T) {
Labels: map[string]string{
"app.kubernetes.io/name": "tidb-cluster",
"app.kubernetes.io/managed-by": "tidb-operator",
"app.kubernetes.io/instance": "",
"app.kubernetes.io/instance": "foo",
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ditto

"app.kubernetes.io/component": "pump",
},
OwnerReferences: []metav1.OwnerReference{
Expand Down
2 changes: 1 addition & 1 deletion pkg/manager/member/pvc_cleaner.go
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Expand Up @@ -273,7 +273,7 @@ func (rpc *realPVCCleaner) listAllPVCs(tc *v1alpha1.TidbCluster) ([]*corev1.Pers
ns := tc.GetNamespace()
tcName := tc.GetName()

selector, err := label.New().Instance(tc.GetLabels()[label.InstanceLabelKey]).Selector()
selector, err := label.New().Instance(tc.GetInstanceName()).Selector()
if err != nil {
return nil, fmt.Errorf("cluster %s/%s assemble label selector failed, err: %v", ns, tcName, err)
}
Expand Down
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