grafana/pkg/registry/apis/datasource/connections.go

105 lines
3.1 KiB
Go

package datasource
import (
"context"
"fmt"
"k8s.io/apimachinery/pkg/apis/meta/internalversion"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apiserver/pkg/endpoints/request"
"k8s.io/apiserver/pkg/registry/rest"
common "github.com/grafana/grafana/pkg/apis/common/v0alpha1"
"github.com/grafana/grafana/pkg/apis/datasource/v0alpha1"
"github.com/grafana/grafana/pkg/services/datasources"
"github.com/grafana/grafana/pkg/services/grafana-apiserver/utils"
)
var (
_ rest.Scoper = (*connectionAccess)(nil)
_ rest.SingularNameProvider = (*connectionAccess)(nil)
_ rest.Getter = (*connectionAccess)(nil)
_ rest.Lister = (*connectionAccess)(nil)
_ rest.Storage = (*connectionAccess)(nil)
)
type connectionAccess struct {
resourceInfo common.ResourceInfo
tableConverter rest.TableConvertor
builder *DataSourceAPIBuilder
}
func (s *connectionAccess) New() runtime.Object {
return s.resourceInfo.NewFunc()
}
func (s *connectionAccess) Destroy() {}
func (s *connectionAccess) NamespaceScoped() bool {
return true
}
func (s *connectionAccess) GetSingularName() string {
return s.resourceInfo.GetSingularName()
}
func (s *connectionAccess) ShortNames() []string {
return s.resourceInfo.GetShortNames()
}
func (s *connectionAccess) NewList() runtime.Object {
return s.resourceInfo.NewListFunc()
}
func (s *connectionAccess) ConvertToTable(ctx context.Context, object runtime.Object, tableOptions runtime.Object) (*metav1.Table, error) {
return s.tableConverter.ConvertToTable(ctx, object, tableOptions)
}
func (s *connectionAccess) Get(ctx context.Context, name string, options *metav1.GetOptions) (runtime.Object, error) {
ns := request.NamespaceValue(ctx)
ds, err := s.builder.getDataSource(ctx, name)
if err != nil {
return nil, err
}
return s.asConnection(ds, ns)
}
func (s *connectionAccess) List(ctx context.Context, options *internalversion.ListOptions) (runtime.Object, error) {
ns := request.NamespaceValue(ctx)
if ns == "" {
// require a namespace so we do not need to support reverse mappings (yet)
return nil, fmt.Errorf("missing namespace in request URL")
}
result := &v0alpha1.DataSourceConnectionList{
Items: []v0alpha1.DataSourceConnection{},
}
vals, err := s.builder.getDataSources(ctx)
if err == nil {
for _, ds := range vals {
v, _ := s.asConnection(ds, ns)
result.Items = append(result.Items, *v)
}
}
return result, err
}
func (s *connectionAccess) asConnection(ds *datasources.DataSource, ns string) (*v0alpha1.DataSourceConnection, error) {
v := &v0alpha1.DataSourceConnection{
TypeMeta: s.resourceInfo.TypeMeta(),
ObjectMeta: metav1.ObjectMeta{
Name: ds.UID,
Namespace: ns,
CreationTimestamp: metav1.NewTime(ds.Created),
ResourceVersion: fmt.Sprintf("%d", ds.Updated.UnixMilli()),
},
Title: ds.Name,
}
v.UID = utils.CalculateClusterWideUID(v) // indicates if the value changed on the server
meta, err := utils.MetaAccessor(v)
if err != nil {
meta.SetUpdatedTimestamp(&ds.Updated)
}
return v, err
}