discovery: Adding a discover based RESTMapper
Added a PriorityRESTMapper that operates off of discovery information. I made an auxiliary data type and function to help collect and organize the information.
This commit is contained in:
Kris
131
pkg/client/typed/discovery/restmapper.go
Normal file
131
pkg/client/typed/discovery/restmapper.go
Normal file
@@ -0,0 +1,131 @@
|
||||
/*
|
||||
Copyright 2016 The Kubernetes Authors.
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
*/
|
||||
|
||||
package discovery
|
||||
|
||||
import (
|
||||
"k8s.io/kubernetes/pkg/api/errors"
|
||||
"k8s.io/kubernetes/pkg/api/meta"
|
||||
"k8s.io/kubernetes/pkg/api/unversioned"
|
||||
)
|
||||
|
||||
// APIGroupResources is an API group with a mapping of versions to
|
||||
// resources.
|
||||
type APIGroupResources struct {
|
||||
Group unversioned.APIGroup
|
||||
// A mapping of version string to a slice of APIResources for
|
||||
// that version.
|
||||
VersionedResources map[string][]unversioned.APIResource
|
||||
}
|
||||
|
||||
// NewRESTMapper returns a PriorityRESTMapper based on the discovered
|
||||
// groups and resourced passed in.
|
||||
func NewRESTMapper(groupResources []*APIGroupResources, versionInterfaces meta.VersionInterfacesFunc) meta.RESTMapper {
|
||||
unionMapper := meta.MultiRESTMapper{}
|
||||
|
||||
var groupPriority []string
|
||||
var resourcePriority []unversioned.GroupVersionResource
|
||||
var kindPriority []unversioned.GroupVersionKind
|
||||
|
||||
for _, group := range groupResources {
|
||||
groupPriority = append(groupPriority, group.Group.Name)
|
||||
|
||||
if len(group.Group.PreferredVersion.Version) != 0 {
|
||||
preffered := group.Group.PreferredVersion.Version
|
||||
if _, ok := group.VersionedResources[preffered]; ok {
|
||||
resourcePriority = append(resourcePriority, unversioned.GroupVersionResource{
|
||||
Group: group.Group.Name,
|
||||
Version: group.Group.PreferredVersion.Version,
|
||||
Resource: meta.AnyResource,
|
||||
})
|
||||
|
||||
kindPriority = append(kindPriority, unversioned.GroupVersionKind{
|
||||
Group: group.Group.Name,
|
||||
Version: group.Group.PreferredVersion.Version,
|
||||
Kind: meta.AnyKind,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
for _, discoveryVersion := range group.Group.Versions {
|
||||
resources, ok := group.VersionedResources[discoveryVersion.Version]
|
||||
if !ok {
|
||||
continue
|
||||
}
|
||||
|
||||
gv := unversioned.GroupVersion{Group: group.Group.Name, Version: discoveryVersion.Version}
|
||||
versionMapper := meta.NewDefaultRESTMapper([]unversioned.GroupVersion{gv}, versionInterfaces)
|
||||
|
||||
for _, resource := range resources {
|
||||
scope := meta.RESTScopeNamespace
|
||||
if !resource.Namespaced {
|
||||
scope = meta.RESTScopeRoot
|
||||
}
|
||||
versionMapper.Add(gv.WithKind(resource.Kind), scope)
|
||||
// TODO only do this if it supports listing
|
||||
versionMapper.Add(gv.WithKind(resource.Kind+"List"), scope)
|
||||
}
|
||||
unionMapper = append(unionMapper, versionMapper)
|
||||
}
|
||||
}
|
||||
|
||||
for _, group := range groupPriority {
|
||||
resourcePriority = append(resourcePriority, unversioned.GroupVersionResource{
|
||||
Group: group,
|
||||
Version: meta.AnyVersion,
|
||||
Resource: meta.AnyResource,
|
||||
})
|
||||
kindPriority = append(kindPriority, unversioned.GroupVersionKind{
|
||||
Group: group,
|
||||
Version: meta.AnyVersion,
|
||||
Kind: meta.AnyKind,
|
||||
})
|
||||
}
|
||||
|
||||
return meta.PriorityRESTMapper{
|
||||
Delegate: unionMapper,
|
||||
ResourcePriority: resourcePriority,
|
||||
KindPriority: kindPriority,
|
||||
}
|
||||
}
|
||||
|
||||
// GetAPIGroupResources uses the provided discovery client to gather
|
||||
// discovery information and populate a slice of APIGroupResources.
|
||||
func GetAPIGroupResources(cl DiscoveryInterface) ([]*APIGroupResources, error) {
|
||||
apiGroups, err := cl.ServerGroups()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
var result []*APIGroupResources
|
||||
for _, group := range apiGroups.Groups {
|
||||
groupResources := &APIGroupResources{
|
||||
Group: group,
|
||||
VersionedResources: make(map[string][]unversioned.APIResource),
|
||||
}
|
||||
for _, version := range group.Versions {
|
||||
resources, err := cl.ServerResourcesForGroupVersion(version.GroupVersion)
|
||||
if err != nil {
|
||||
if errors.IsNotFound(err) {
|
||||
continue // ignore as this can race with deletion of 3rd party APIs
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
groupResources.VersionedResources[version.Version] = resources.APIResources
|
||||
}
|
||||
result = append(result, groupResources)
|
||||
}
|
||||
return result, nil
|
||||
}
|
||||
176
pkg/client/typed/discovery/restmapper_test.go
Normal file
176
pkg/client/typed/discovery/restmapper_test.go
Normal file
@@ -0,0 +1,176 @@
|
||||
/*
|
||||
Copyright 2016 The Kubernetes Authors.
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
*/
|
||||
|
||||
package discovery
|
||||
|
||||
import (
|
||||
"reflect"
|
||||
"testing"
|
||||
|
||||
"k8s.io/kubernetes/pkg/api/unversioned"
|
||||
)
|
||||
|
||||
func TestRESTMapper(t *testing.T) {
|
||||
resources := []*APIGroupResources{
|
||||
{
|
||||
Group: unversioned.APIGroup{
|
||||
Versions: []unversioned.GroupVersionForDiscovery{
|
||||
{Version: "v1"},
|
||||
{Version: "v2"},
|
||||
},
|
||||
PreferredVersion: unversioned.GroupVersionForDiscovery{Version: "v1"},
|
||||
},
|
||||
VersionedResources: map[string][]unversioned.APIResource{
|
||||
"v1": {
|
||||
{Name: "pods", Namespaced: true, Kind: "Pod"},
|
||||
},
|
||||
"v2": {
|
||||
{Name: "pods", Namespaced: true, Kind: "Pod"},
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
Group: unversioned.APIGroup{
|
||||
Name: "extensions",
|
||||
Versions: []unversioned.GroupVersionForDiscovery{
|
||||
{Version: "v1beta"},
|
||||
},
|
||||
PreferredVersion: unversioned.GroupVersionForDiscovery{Version: "v1beta"},
|
||||
},
|
||||
VersionedResources: map[string][]unversioned.APIResource{
|
||||
"v1beta": {
|
||||
{Name: "jobs", Namespaced: true, Kind: "Job"},
|
||||
},
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
restMapper := NewRESTMapper(resources, nil)
|
||||
|
||||
kindTCs := []struct {
|
||||
input unversioned.GroupVersionResource
|
||||
want unversioned.GroupVersionKind
|
||||
}{
|
||||
{
|
||||
input: unversioned.GroupVersionResource{
|
||||
Version: "v1",
|
||||
Resource: "pods",
|
||||
},
|
||||
want: unversioned.GroupVersionKind{
|
||||
Version: "v1",
|
||||
Kind: "Pod",
|
||||
},
|
||||
},
|
||||
{
|
||||
input: unversioned.GroupVersionResource{
|
||||
Version: "v2",
|
||||
Resource: "pods",
|
||||
},
|
||||
want: unversioned.GroupVersionKind{
|
||||
Version: "v2",
|
||||
Kind: "Pod",
|
||||
},
|
||||
},
|
||||
{
|
||||
input: unversioned.GroupVersionResource{
|
||||
Resource: "pods",
|
||||
},
|
||||
want: unversioned.GroupVersionKind{
|
||||
Version: "v1",
|
||||
Kind: "Pod",
|
||||
},
|
||||
},
|
||||
{
|
||||
input: unversioned.GroupVersionResource{
|
||||
Resource: "jobs",
|
||||
},
|
||||
want: unversioned.GroupVersionKind{
|
||||
Group: "extensions",
|
||||
Version: "v1beta",
|
||||
Kind: "Job",
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
for _, tc := range kindTCs {
|
||||
got, err := restMapper.KindFor(tc.input)
|
||||
if err != nil {
|
||||
t.Errorf("KindFor(%#v) unexpected error: %v", tc.input, err)
|
||||
continue
|
||||
}
|
||||
|
||||
if !reflect.DeepEqual(got, tc.want) {
|
||||
t.Errorf("KindFor(%#v) = %#v, want %#v", tc.input, got, tc.want)
|
||||
}
|
||||
}
|
||||
|
||||
resourceTCs := []struct {
|
||||
input unversioned.GroupVersionResource
|
||||
want unversioned.GroupVersionResource
|
||||
}{
|
||||
{
|
||||
input: unversioned.GroupVersionResource{
|
||||
Version: "v1",
|
||||
Resource: "pods",
|
||||
},
|
||||
want: unversioned.GroupVersionResource{
|
||||
Version: "v1",
|
||||
Resource: "pods",
|
||||
},
|
||||
},
|
||||
{
|
||||
input: unversioned.GroupVersionResource{
|
||||
Version: "v2",
|
||||
Resource: "pods",
|
||||
},
|
||||
want: unversioned.GroupVersionResource{
|
||||
Version: "v2",
|
||||
Resource: "pods",
|
||||
},
|
||||
},
|
||||
{
|
||||
input: unversioned.GroupVersionResource{
|
||||
Resource: "pods",
|
||||
},
|
||||
want: unversioned.GroupVersionResource{
|
||||
Version: "v1",
|
||||
Resource: "pods",
|
||||
},
|
||||
},
|
||||
{
|
||||
input: unversioned.GroupVersionResource{
|
||||
Resource: "jobs",
|
||||
},
|
||||
want: unversioned.GroupVersionResource{
|
||||
Group: "extensions",
|
||||
Version: "v1beta",
|
||||
Resource: "jobs",
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
for _, tc := range resourceTCs {
|
||||
got, err := restMapper.ResourceFor(tc.input)
|
||||
if err != nil {
|
||||
t.Errorf("ResourceFor(%#v) unexpected error: %v", tc.input, err)
|
||||
continue
|
||||
}
|
||||
|
||||
if !reflect.DeepEqual(got, tc.want) {
|
||||
t.Errorf("ResourceFor(%#v) = %#v, want %#v", tc.input, got, tc.want)
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user