kubernetes/examples/apiserver/apiserver.go
Clayton Coleman e0ebcf4216
Split the storage and negotiation parts of Codecs
The codec factory should support two distinct interfaces - negotiating
for a serializer with a client, vs reading or writing data to a storage
form (etcd, disk, etc). Make the EncodeForVersion and DecodeToVersion
methods only take Encoder and Decoder, and slight refactoring elsewhere.

In the storage factory, use a content type to control what serializer to
pick, and use the universal deserializer. This ensures that storage can
read JSON (which might be from older objects) while only writing
protobuf. Add exceptions for those resources that may not be able to
write to protobuf (specifically third party resources, but potentially
others in the future).
2016-05-05 12:08:23 -04:00

102 lines
3.4 KiB
Go

/*
Copyright 2016 The Kubernetes Authors All rights reserved.
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 apiserver
import (
"fmt"
"net"
"k8s.io/kubernetes/cmd/libs/go2idl/client-gen/testdata/apis/testgroup.k8s.io/v1"
testgroupetcd "k8s.io/kubernetes/examples/apiserver/rest"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/rest"
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/apimachinery/registered"
"k8s.io/kubernetes/pkg/genericapiserver"
"k8s.io/kubernetes/pkg/storage/storagebackend"
// Install the testgroup API
_ "k8s.io/kubernetes/cmd/libs/go2idl/client-gen/testdata/apis/testgroup.k8s.io/install"
)
const (
// Ports on which to run the server.
// Explicitly setting these to a different value than the default values, to prevent this from clashing with a local cluster.
InsecurePort = 8081
SecurePort = 6444
)
func newStorageFactory() genericapiserver.StorageFactory {
config := storagebackend.Config{
Prefix: genericapiserver.DefaultEtcdPathPrefix,
ServerList: []string{"http://127.0.0.1:4001"},
}
storageFactory := genericapiserver.NewDefaultStorageFactory(config, "application/json", api.Codecs, genericapiserver.NewDefaultResourceEncodingConfig(), genericapiserver.NewResourceConfig())
return storageFactory
}
func NewServerRunOptions() *genericapiserver.ServerRunOptions {
serverOptions := genericapiserver.NewServerRunOptions()
serverOptions.InsecurePort = InsecurePort
serverOptions.SecurePort = SecurePort
return serverOptions
}
func Run(serverOptions *genericapiserver.ServerRunOptions) error {
// Set ServiceClusterIPRange
_, serviceClusterIPRange, _ := net.ParseCIDR("10.0.0.0/24")
serverOptions.ServiceClusterIPRange = *serviceClusterIPRange
serverOptions.StorageConfig.ServerList = []string{"http://127.0.0.1:4001"}
genericapiserver.ValidateRunOptions(serverOptions)
config := genericapiserver.NewConfig(serverOptions)
config.Serializer = api.Codecs
s, err := genericapiserver.New(config)
if err != nil {
return fmt.Errorf("Error in bringing up the server: %v", err)
}
groupVersion := v1.SchemeGroupVersion
groupName := groupVersion.Group
groupMeta, err := registered.Group(groupName)
if err != nil {
return fmt.Errorf("%v", err)
}
storageFactory := newStorageFactory()
storage, err := storageFactory.New(unversioned.GroupResource{Group: groupName, Resource: "testtype"})
if err != nil {
return fmt.Errorf("Unable to get storage: %v", err)
}
restStorageMap := map[string]rest.Storage{
"testtypes": testgroupetcd.NewREST(storage, s.StorageDecorator()),
}
apiGroupInfo := genericapiserver.APIGroupInfo{
GroupMeta: *groupMeta,
VersionedResourcesStorageMap: map[string]map[string]rest.Storage{
groupVersion.Version: restStorageMap,
},
Scheme: api.Scheme,
NegotiatedSerializer: api.Codecs,
}
if err := s.InstallAPIGroups([]genericapiserver.APIGroupInfo{apiGroupInfo}); err != nil {
return fmt.Errorf("Error in installing API: %v", err)
}
s.Run(serverOptions)
return nil
}