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cmHandler.go
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cmHandler.go
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package operands
import (
"errors"
"reflect"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
hcov1beta1 "github.com/kubevirt/hyperconverged-cluster-operator/pkg/apis/hco/v1beta1"
"github.com/kubevirt/hyperconverged-cluster-operator/pkg/controller/common"
"github.com/kubevirt/hyperconverged-cluster-operator/pkg/util"
)
func newCmHandler(Client client.Client, Scheme *runtime.Scheme, required *corev1.ConfigMap) Operand {
h := &genericOperand{
Client: Client,
Scheme: Scheme,
crType: "ConfigMap",
removeExistingOwner: false,
hooks: &cmHooks{required: required},
}
return h
}
type cmHooks struct {
required *corev1.ConfigMap
}
func (h cmHooks) getFullCr(_ *hcov1beta1.HyperConverged) (client.Object, error) {
return h.required.DeepCopy(), nil
}
func (h cmHooks) getEmptyCr() client.Object {
return &corev1.ConfigMap{
ObjectMeta: metav1.ObjectMeta{
Name: h.required.Name,
},
}
}
func (h cmHooks) getObjectMeta(cr runtime.Object) *metav1.ObjectMeta {
return &cr.(*corev1.ConfigMap).ObjectMeta
}
func (h cmHooks) reset() { /* no implementation */ }
func (h cmHooks) updateCr(req *common.HcoRequest, Client client.Client, exists runtime.Object, _ runtime.Object) (bool, bool, error) {
found, ok := exists.(*corev1.ConfigMap)
if !ok {
return false, false, errors.New("can't convert to Configmap")
}
if !reflect.DeepEqual(found.Data, h.required.Data) ||
!reflect.DeepEqual(found.Labels, h.required.Labels) {
if req.HCOTriggered {
req.Logger.Info("Updating existing Configmap to new opinionated values", "name", h.required.Name)
} else {
req.Logger.Info("Reconciling an externally updated Configmap to its opinionated values", "name", h.required.Name)
}
util.DeepCopyLabels(&h.required.ObjectMeta, &found.ObjectMeta)
h.required.DeepCopyInto(found)
err := Client.Update(req.Ctx, found)
if err != nil {
return false, false, err
}
return true, !req.HCOTriggered, nil
}
return false, false, nil
}