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current.go
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current.go
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package clusterconfigmap
import (
"context"
"fmt"
"github.com/giantswarm/microerror"
"github.com/giantswarm/operatorkit/v7/pkg/controller/context/resourcecanceledcontext"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"github.com/giantswarm/cluster-operator/v4/pkg/label"
"github.com/giantswarm/cluster-operator/v4/pkg/project"
"github.com/giantswarm/cluster-operator/v4/service/controller/key"
)
func (r *Resource) GetCurrentState(ctx context.Context, obj interface{}) ([]*corev1.ConfigMap, error) {
cr, err := key.ToCluster(obj)
if err != nil {
return nil, microerror.Mask(err)
}
// The config maps are deleted when the namespace is deleted.
if key.IsDeleted(&cr) {
r.logger.Debugf(ctx, "not deleting config maps for tenant cluster %#q", key.ClusterID(&cr))
r.logger.Debugf(ctx, "canceling resource")
resourcecanceledcontext.SetCanceled(ctx)
return nil, nil
}
var configMaps []*corev1.ConfigMap
{
r.logger.Debugf(ctx, "finding cluster config maps in namespace %#q", key.ClusterID(&cr))
lo := metav1.ListOptions{
LabelSelector: fmt.Sprintf("%s=%s", label.ManagedBy, project.Name()),
}
list, err := r.k8sClient.CoreV1().ConfigMaps(key.ClusterID(&cr)).List(ctx, lo)
if err != nil {
return nil, microerror.Mask(err)
}
for _, item := range list.Items {
configMaps = append(configMaps, item.DeepCopy())
}
r.logger.Debugf(ctx, "found %d config maps in namespace %#q", len(configMaps), key.ClusterID(&cr))
}
return configMaps, nil
}