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fix(vmalert): discover vmalertmanagers #703

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fix(vmalert): discover vmalertmanagers #703

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33 changes: 16 additions & 17 deletions controllers/factory/vmalert.go
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ import (
"github.com/VictoriaMetrics/operator/controllers/factory/k8stools"
"github.com/VictoriaMetrics/operator/controllers/factory/psp"
"github.com/VictoriaMetrics/operator/internal/config"
"golang.org/x/exp/slices"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
Expand Down Expand Up @@ -127,41 +128,39 @@ func createOrUpdateVMAlertSecret(ctx context.Context, rclient client.Client, cr

func CreateOrUpdateVMAlert(ctx context.Context, cr *victoriametricsv1beta1.VMAlert, rclient client.Client, c *config.BaseOperatorConf, cmNames []string) error {
l := log.WithValues("controller", "vmalert.crud", "vmalert", cr.Name)

// copy to avoid side effects.
cr = cr.DeepCopy()
var additionalNotifiers []victoriametricsv1beta1.VMAlertNotifierSpec

if cr.Spec.Notifier != nil {
cr.Spec.Notifiers = append(cr.Spec.Notifiers, *cr.Spec.Notifier)
}
// trim notifiers with non-empty notifier Selector
var cnt int
for i := range cr.Spec.Notifiers {
n := cr.Spec.Notifiers[i]
// fast path
if n.Selector == nil {
cr.Spec.Notifiers[cnt] = n
cnt++
continue
}
var additionalNotifiers []victoriametricsv1beta1.VMAlertNotifierSpec
for _, selector := range cr.GetNotifierSelectors() {
// discover alertmanagers
var ams victoriametricsv1beta1.VMAlertmanagerList
amListOpts, err := n.Selector.AsListOptions()
amListOpts, err := selector.AsListOptions()
if err != nil {
return fmt.Errorf("cannot convert notifier selector as ListOptions: %w", err)
}
if err := rclient.List(ctx, &ams, amListOpts, config.MustGetNamespaceListOptions()); err != nil {
return fmt.Errorf("cannot list alertmanagers for vmalert notifier sd: %w", err)
}
for _, item := range ams.Items {
if !item.DeletionTimestamp.IsZero() || (n.Selector.Namespace != nil && !n.Selector.Namespace.IsMatch(&item)) {
if !item.DeletionTimestamp.IsZero() || (selector.Namespace != nil && !selector.Namespace.IsMatch(&item)) {
continue
}
dsc := item.AsNotifiers()
additionalNotifiers = append(additionalNotifiers, dsc...)
}
}
cr.Spec.Notifiers = cr.Spec.Notifiers[:cnt]

// remove notifiers with a selector as they have been consumed and the
// results added to additionalNotifiers.
cr.Spec.Notifiers = slices.DeleteFunc(cr.Spec.Notifiers, func(n victoriametricsv1beta1.VMAlertNotifierSpec) bool {
return n.Selector != nil
})

if cr.Spec.Notifier != nil && cr.Spec.Notifier.Selector == nil {
cr.Spec.Notifiers = append(cr.Spec.Notifiers, *cr.Spec.Notifier)
}

if len(additionalNotifiers) > 0 {
sort.Slice(additionalNotifiers, func(i, j int) bool {
Expand Down
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