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vmrule_controller.go
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vmrule_controller.go
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/*
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 controllers
import (
"context"
"fmt"
victoriametricsv1beta1 "github.com/VictoriaMetrics/operator/api/v1beta1"
"github.com/VictoriaMetrics/operator/controllers/factory/k8stools"
"github.com/VictoriaMetrics/operator/controllers/factory/logger"
"github.com/VictoriaMetrics/operator/controllers/factory/vmalert"
"github.com/VictoriaMetrics/operator/internal/config"
"github.com/go-logr/logr"
"k8s.io/apimachinery/pkg/runtime"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
)
// VMRuleReconciler reconciles a VMRule object
type VMRuleReconciler struct {
client.Client
Log logr.Logger
OriginScheme *runtime.Scheme
BaseConf *config.BaseOperatorConf
}
// Scheme implements interface.
func (r *VMRuleReconciler) Scheme() *runtime.Scheme {
return r.OriginScheme
}
// Reconcile general reconcile method for controller
// +kubebuilder:rbac:groups=operator.victoriametrics.com,resources=vmrules,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups=operator.victoriametrics.com,resources=vmrules/status,verbs=get;update;patch
func (r *VMRuleReconciler) Reconcile(ctx context.Context, req ctrl.Request) (result ctrl.Result, err error) {
reqLogger := r.Log.WithValues("vmrule", req.NamespacedName)
ctx = logger.AddToContext(ctx, reqLogger)
defer func() {
result, err = handleReconcileErr(ctx, r.Client, nil, result, err)
}()
// Fetch the VMRule instance
instance := &victoriametricsv1beta1.VMRule{}
if err := r.Get(ctx, req.NamespacedName, instance); err != nil {
return result, &getError{err, "vmrule", req}
}
RegisterObjectStat(instance, "vmrule")
if vmAlertRateLimiter.MustThrottleReconcile() {
// fast path
return ctrl.Result{}, nil
}
vmAlertSync.Lock()
defer vmAlertSync.Unlock()
var objects victoriametricsv1beta1.VMAlertList
if err := k8stools.ListObjectsByNamespace(ctx, r.Client, config.MustGetWatchNamespaces(), func(dst *victoriametricsv1beta1.VMAlertList) {
objects.Items = append(objects.Items, dst.Items...)
}); err != nil {
return result, fmt.Errorf("cannot list vmauths for vmuser: %w", err)
}
for _, vmalertItem := range objects.Items {
if vmalertItem.DeletionTimestamp != nil || vmalertItem.Spec.ParsingError != "" {
continue
}
currVMAlert := &vmalertItem
// only check selector when deleting, since labels can be changed when updating and we can't tell if it was selected before.
if instance.DeletionTimestamp.IsZero() && !currVMAlert.Spec.SelectAllByDefault {
match, err := isSelectorsMatchesTargetCRD(ctx, r.Client, instance, currVMAlert, currVMAlert.Spec.RuleSelector, currVMAlert.Spec.RuleNamespaceSelector)
if err != nil {
reqLogger.Error(err, "cannot match vmalert and vmRule")
continue
}
if !match {
continue
}
}
reqLogger := reqLogger.WithValues("vmalert", currVMAlert.Name)
ctx := logger.AddToContext(ctx, reqLogger)
maps, err := vmalert.CreateOrUpdateRuleConfigMaps(ctx, currVMAlert, r)
if err != nil {
return ctrl.Result{}, fmt.Errorf("cannot update rules configmaps: %w", err)
}
if err := vmalert.CreateOrUpdateVMAlert(ctx, currVMAlert, r, r.BaseConf, maps); err != nil {
return result, fmt.Errorf("cannot create or update vmalert for vmrule :%w", err)
}
}
return
}
// SetupWithManager general setup method
func (r *VMRuleReconciler) SetupWithManager(mgr ctrl.Manager) error {
return ctrl.NewControllerManagedBy(mgr).
For(&victoriametricsv1beta1.VMRule{}).
WithOptions(getDefaultOptions()).
Complete(r)
}