[WIP] Add ClusterClaim for IBU statuses

internal/common/clusterclaims.go

@@ -0,0 +1,77 @@
+package common
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/go-logr/logr"
+	apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
+	apierrors "k8s.io/apimachinery/pkg/api/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/types"
+	clusterv1 "open-cluster-management.io/api/cluster/v1alpha1"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+)
+
+const ClusterClaimPrefix = "lcm.openshift.io/ibu-"
+
+func isClusterClaimCRDInstalled(ctx context.Context, client client.Client) (bool, error) {
+	crd := &apiextensionsv1.CustomResourceDefinition{}
+	if err := client.Get(ctx, types.NamespacedName{
+		Name: "clusterclaims.cluster.open-cluster-management.io",
+	}, crd); err != nil {
+		if apierrors.IsNotFound(err) {
+			return false, nil
+		}
+		return false, fmt.Errorf("could not get ClusterClaim crd: %w", err)
+	}
+	return true, nil
+}
+
+func CleanupClusterClaims(ctx context.Context, client client.Client, log *logr.Logger) error {
+	if installed, err := isClusterClaimCRDInstalled(ctx, client); err != nil {
+		return err
+	} else if !installed {
+		log.Info("ClusterClaim CRD not found; Skip creating ClusterClaim")
+		return nil
+	}
+	cl := &clusterv1.ClusterClaimList{}
+	err := client.List(ctx, cl)
+	if err != nil {
+		return fmt.Errorf("failed to list ClusterClaims: %w", err)
+	}
+	for _, cc := range cl.Items {
+		if strings.HasPrefix(cc.Name, ClusterClaimPrefix) {
+			err := client.Delete(ctx, &cc)
+			if err != nil {
+				return fmt.Errorf("failed to delete ClusterClaim: %w", err)
+			}
+		}
+	}
+	return nil
+}
+
+func CreateClusterClaim(ctx context.Context, client client.Client, log *logr.Logger, stage string, status string) error {
+	if installed, err := isClusterClaimCRDInstalled(ctx, client); err != nil {
+		return err
+	} else if !installed {
+		log.Info("ClusterClaim CRD not found; Skip creating ClusterClaim")
+		return nil
+	}
+	cc := &clusterv1.ClusterClaim{
+		ObjectMeta: metav1.ObjectMeta{
+			Name: ClusterClaimPrefix + stage,
+		},
+		Spec: clusterv1.ClusterClaimSpec{
+			Value: status,
+		},
+	}
+	err := client.Create(ctx, cc)
+	if apierrors.IsAlreadyExists(err) {
+		log.Info("ClusterClaim already exists")
+	} else if err != nil {
+		return fmt.Errorf("could not create ClusterClaim: %w", err)
+	}
+	return nil
+}

internal/common/consts.go

@@ -155,3 +155,17 @@ var CertPrefixes = []string{
 }
 
 var TarOpts = []string{"--selinux", "--xattrs", "--xattrs-include=*", "--acls"}
+
+// status for ClusterClaims
+const (
+	Failed    = "failed"
+	Completed = "completed"
+)
+
+// actions for ClusterClaims
+const (
+	Prep     = "prep"
+	Upgrade  = "upgrade"
+	Finalize = "finalize"
+	Abort    = "abort"
+)