mirror of
https://github.com/grafana/grafana.git
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78 lines
2.2 KiB
Go
78 lines
2.2 KiB
Go
package dashboard
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import (
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"encoding/json"
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"fmt"
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"k8s.io/apimachinery/pkg/runtime"
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dashboardV0 "github.com/grafana/grafana/apps/dashboard/pkg/apis/dashboard/v0alpha1"
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dashboardV1 "github.com/grafana/grafana/apps/dashboard/pkg/apis/dashboard/v1beta1"
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dashboardV2 "github.com/grafana/grafana/apps/dashboard/pkg/apis/dashboard/v2alpha1"
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commonV0 "github.com/grafana/grafana/pkg/apimachinery/apis/common/v0alpha1"
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"github.com/grafana/grafana/pkg/apimachinery/utils"
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"github.com/grafana/grafana/pkg/storage/unified/apistore"
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)
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func NewDashboardLargeObjectSupport(scheme *runtime.Scheme, threshold int) *apistore.BasicLargeObjectSupport {
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return &apistore.BasicLargeObjectSupport{
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TheGroupResource: dashboardV0.DashboardResourceInfo.GroupResource(),
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// Byte size above which an object is considered large.
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ThresholdBytes: threshold,
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// 10mb -- we should check what the largest ones are... might be bigger
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MaxBytes: 10 * 1024 * 1024,
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ReduceSpec: func(obj runtime.Object) error {
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meta, err := utils.MetaAccessor(obj)
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if err != nil {
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return err
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}
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switch dash := obj.(type) {
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case *dashboardV0.Dashboard:
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reduceUnstructredSpec(&dash.Spec)
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case *dashboardV1.Dashboard:
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reduceUnstructredSpec(&dash.Spec)
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case *dashboardV2.Dashboard:
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dash.Spec = dashboardV2.DashboardSpec{
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Title: dash.Spec.Title,
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Description: dash.Spec.Description,
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Tags: dash.Spec.Tags,
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}
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default:
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return fmt.Errorf("unsupported dashboard type %T", obj)
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}
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meta.SetManagedFields(nil) // this could be bigger than the object!
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return nil
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},
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RebuildSpec: func(obj runtime.Object, blob []byte) error {
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switch dash := obj.(type) {
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case *dashboardV0.Dashboard:
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return dash.Spec.UnmarshalJSON(blob)
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case *dashboardV1.Dashboard:
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return dash.Spec.UnmarshalJSON(blob)
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case *dashboardV2.Dashboard:
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return json.Unmarshal(blob, &dash.Spec)
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default:
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return fmt.Errorf("unsupported dashboard type %T", obj)
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}
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},
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}
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}
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func reduceUnstructredSpec(spec *commonV0.Unstructured) {
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vals := make(map[string]any, 5)
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keep := []string{"title", "description", "tags", "schemaVersion"}
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for _, k := range keep {
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v, ok := spec.Object[k]
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if ok {
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vals[k] = v
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}
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}
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spec.Object = vals
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}
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