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added patcher logic for pdb #1947

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merged 1 commit into from
Jul 18, 2024
Merged

added patcher logic for pdb #1947

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26 changes: 21 additions & 5 deletions pkg/controllers/resources/poddisruptionbudgets/syncer.go
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Original file line number Diff line number Diff line change
@@ -1,12 +1,16 @@
package poddisruptionbudgets

import (
"fmt"

"github.com/loft-sh/vcluster/pkg/controllers/syncer"
synccontext "github.com/loft-sh/vcluster/pkg/controllers/syncer/context"
"github.com/loft-sh/vcluster/pkg/controllers/syncer/translator"
syncertypes "github.com/loft-sh/vcluster/pkg/controllers/syncer/types"
"github.com/loft-sh/vcluster/pkg/mappings"
"github.com/loft-sh/vcluster/pkg/patcher"
policyv1 "k8s.io/api/policy/v1"
utilerrors "k8s.io/apimachinery/pkg/util/errors"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
)
Expand All @@ -29,13 +33,25 @@ func (pdb *pdbSyncer) SyncToHost(ctx *synccontext.SyncContext, vObj client.Objec
return pdb.SyncToHostCreate(ctx, vObj, pdb.translate(ctx, vObj.(*policyv1.PodDisruptionBudget)))
}

func (pdb *pdbSyncer) Sync(ctx *synccontext.SyncContext, pObj client.Object, vObj client.Object) (ctrl.Result, error) {
func (pdb *pdbSyncer) Sync(ctx *synccontext.SyncContext, pObj client.Object, vObj client.Object) (_ ctrl.Result, retErr error) {
vPDB := vObj.(*policyv1.PodDisruptionBudget)
pPDB := pObj.(*policyv1.PodDisruptionBudget)
newPDB := pdb.translateUpdate(ctx, pPDB, vPDB)
if newPDB != nil {
translator.PrintChanges(pObj, newPDB, ctx.Log)

patch, err := patcher.NewSyncerPatcher(ctx, pPDB, vPDB)
if err != nil {
return ctrl.Result{}, fmt.Errorf("new syncer patcher: %w", err)
}

return pdb.SyncToHostUpdate(ctx, vObj, newPDB)
defer func() {
if err := patch.Patch(ctx, pPDB, vPDB); err != nil {
retErr = utilerrors.NewAggregate([]error{retErr, err})
}
if retErr != nil {
pdb.EventRecorder().Eventf(vObj, "Warning", "SyncError", "Error syncing: %v", retErr)
}
}()

pdb.translateUpdate(ctx.Context, pPDB, vPDB)

return ctrl.Result{}, nil
}
6 changes: 3 additions & 3 deletions pkg/controllers/resources/poddisruptionbudgets/syncer_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -93,7 +93,7 @@ func TestSync(t *testing.T) {
},
Sync: func(ctx *synccontext.RegisterContext) {
syncCtx, syncer := generictesting.FakeStartSyncer(t, ctx, New)
_, err := syncer.(*pdbSyncer).SyncToHost(syncCtx, vclusterPDB)
_, err := syncer.(*pdbSyncer).SyncToHost(syncCtx, vclusterPDB.DeepCopy())
assert.NilError(t, err)
},
},
Expand All @@ -113,7 +113,7 @@ func TestSync(t *testing.T) {
},
Sync: func(ctx *synccontext.RegisterContext) {
syncCtx, syncer := generictesting.FakeStartSyncer(t, ctx, New)
_, err := syncer.(*pdbSyncer).Sync(syncCtx, hostClusterSyncedPDB, vclusterUpdatedPDB)
_, err := syncer.(*pdbSyncer).Sync(syncCtx, hostClusterSyncedPDB.DeepCopy(), vclusterUpdatedPDB.DeepCopy())
assert.NilError(t, err)
},
},
Expand All @@ -133,7 +133,7 @@ func TestSync(t *testing.T) {
},
Sync: func(ctx *synccontext.RegisterContext) {
syncCtx, syncer := generictesting.FakeStartSyncer(t, ctx, New)
_, err := syncer.(*pdbSyncer).Sync(syncCtx, hostClusterSyncedPDB, vclusterUpdatedSelectorPDB)
_, err := syncer.(*pdbSyncer).Sync(syncCtx, hostClusterSyncedPDB.DeepCopy(), vclusterUpdatedSelectorPDB.DeepCopy())
assert.NilError(t, err)
},
},
Expand Down
32 changes: 7 additions & 25 deletions pkg/controllers/resources/poddisruptionbudgets/translate.go
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Original file line number Diff line number Diff line change
Expand Up @@ -3,10 +3,8 @@ package poddisruptionbudgets
import (
"context"

"github.com/loft-sh/vcluster/pkg/controllers/syncer/translator"
"github.com/loft-sh/vcluster/pkg/util/translate"
policyv1 "k8s.io/api/policy/v1"
"k8s.io/apimachinery/pkg/api/equality"
)

func (pdb *pdbSyncer) translate(ctx context.Context, vObj *policyv1.PodDisruptionBudget) *policyv1.PodDisruptionBudget {
Expand All @@ -17,31 +15,15 @@ func (pdb *pdbSyncer) translate(ctx context.Context, vObj *policyv1.PodDisruptio
return newPDB
}

func (pdb *pdbSyncer) translateUpdate(ctx context.Context, pObj, vObj *policyv1.PodDisruptionBudget) *policyv1.PodDisruptionBudget {
var updated *policyv1.PodDisruptionBudget

// check max available and min available in spec
if !equality.Semantic.DeepEqual(vObj.Spec.MaxUnavailable, pObj.Spec.MaxUnavailable) ||
!equality.Semantic.DeepEqual(vObj.Spec.MinAvailable, pObj.Spec.MinAvailable) {
updated = translator.NewIfNil(updated, pObj)
updated.Spec.MaxUnavailable = vObj.Spec.MaxUnavailable
updated.Spec.MinAvailable = vObj.Spec.MinAvailable
}
func (pdb *pdbSyncer) translateUpdate(ctx context.Context, pObj, vObj *policyv1.PodDisruptionBudget) {
pObj.Spec.MaxUnavailable = vObj.Spec.MaxUnavailable
pObj.Spec.MinAvailable = vObj.Spec.MinAvailable

// check annotations
changed, updatedAnnotations, updatedLabels := pdb.TranslateMetadataUpdate(ctx, vObj, pObj)
if changed {
updated = translator.NewIfNil(updated, pObj)
updated.Annotations = updatedAnnotations
updated.Labels = updatedLabels
}
_, updatedAnnotations, updatedLabels := pdb.TranslateMetadataUpdate(ctx, vObj, pObj)
pObj.Annotations = updatedAnnotations
pObj.Labels = updatedLabels

// check LabelSelector
vObjLabelSelector := translate.Default.TranslateLabelSelector(vObj.Spec.Selector)
if !equality.Semantic.DeepEqual(vObjLabelSelector, pObj.Spec.Selector) {
updated = translator.NewIfNil(updated, pObj)
updated.Spec.Selector = vObjLabelSelector
}

return updated
pObj.Spec.Selector = translate.Default.TranslateLabelSelector(vObj.Spec.Selector)
}
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