/
protobuf_configmap_reconciler.go
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/
protobuf_configmap_reconciler.go
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// Copyright 2021 Red Hat, Inc. and/or its affiliates
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package shared
import (
api "github.com/kiegroup/kogito-operator/apis"
"github.com/kiegroup/kogito-operator/core/framework"
"github.com/kiegroup/kogito-operator/core/infrastructure"
"github.com/kiegroup/kogito-operator/core/operator"
v1 "k8s.io/api/core/v1"
"reflect"
"sigs.k8s.io/controller-runtime/pkg/client"
)
// ProtoBufConfigMapReconciler ...
type ProtoBufConfigMapReconciler interface {
Reconcile() error
}
type protoBufConfigMapReconciler struct {
operator.Context
runtimeInstance api.KogitoRuntimeInterface
configMapHandler infrastructure.ConfigMapHandler
protobufConfigMapHandler ProtoBufConfigMapHandler
deltaProcessor infrastructure.DeltaProcessor
}
// NewProtoBufConfigMapReconciler ...
func NewProtoBufConfigMapReconciler(context operator.Context, instance api.KogitoRuntimeInterface) ProtoBufConfigMapReconciler {
return &protoBufConfigMapReconciler{
Context: context,
runtimeInstance: instance,
configMapHandler: infrastructure.NewConfigMapHandler(context),
protobufConfigMapHandler: NewProtoBufConfigMapHandler(context),
deltaProcessor: infrastructure.NewDeltaProcessor(context),
}
}
func (p *protoBufConfigMapReconciler) Reconcile() error {
// Create Required resource
requestedResources, err := p.createRequiredResources(p.runtimeInstance)
if err != nil {
return err
}
// Get Deployed resource
deployedResources, err := p.getDeployedResources(p.runtimeInstance)
if err != nil {
return err
}
// Process Delta
return p.processDelta(requestedResources, deployedResources)
}
func (p *protoBufConfigMapReconciler) createRequiredResources(runtimeInstance api.KogitoRuntimeInterface) (map[reflect.Type][]client.Object, error) {
resources := make(map[reflect.Type][]client.Object)
protoBufConfigMap, err := p.protobufConfigMapHandler.CreateProtoBufConfigMap(runtimeInstance)
if err != nil {
return nil, err
}
if protoBufConfigMap != nil {
if err := framework.SetOwner(runtimeInstance, p.Scheme, protoBufConfigMap); err != nil {
return nil, err
}
resources[reflect.TypeOf(v1.ConfigMap{})] = []client.Object{protoBufConfigMap}
}
return resources, nil
}
func (p *protoBufConfigMapReconciler) getDeployedResources(runtimeInstance api.KogitoRuntimeInterface) (map[reflect.Type][]client.Object, error) {
resources := make(map[reflect.Type][]client.Object)
labels := map[string]string{
framework.LabelAppKey: runtimeInstance.GetName(),
ConfigMapProtoBufEnabledLabelKey: "true",
}
configMapList, err := p.configMapHandler.FetchConfigMapsForLabel(runtimeInstance.GetNamespace(), labels)
if err != nil {
return nil, err
}
if len(configMapList.Items) > 0 {
kubernetesResources := make([]client.Object, len(configMapList.Items))
for i, configMap := range configMapList.Items {
item := configMap
kubernetesResources[i] = &item
}
resources[reflect.TypeOf(v1.ConfigMap{})] = kubernetesResources
}
return resources, nil
}
func (p *protoBufConfigMapReconciler) processDelta(requestedResources map[reflect.Type][]client.Object, deployedResources map[reflect.Type][]client.Object) (err error) {
comparator := p.configMapHandler.GetComparator()
isDeltaProcessed, err := p.deltaProcessor.ProcessDelta(comparator, requestedResources, deployedResources)
if err != nil {
return err
}
if isDeltaProcessed {
return infrastructure.ErrorForProcessingProtoBufConfigMapDelta()
}
return
}