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apiserver.go
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/
apiserver.go
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package apiserver
import (
"sync"
"k8s.io/apimachinery/pkg/apimachinery/registered"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/runtime/serializer"
"k8s.io/apiserver/pkg/registry/rest"
genericapiserver "k8s.io/apiserver/pkg/server"
restclient "k8s.io/client-go/rest"
"k8s.io/kubernetes/pkg/api/legacyscheme"
kclientsetinternal "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
appsapiv1 "github.com/openshift/api/apps/v1"
appsclientinternal "github.com/openshift/origin/pkg/apps/generated/internalclientset"
deployconfigetcd "github.com/openshift/origin/pkg/apps/registry/deployconfig/etcd"
deploylogregistry "github.com/openshift/origin/pkg/apps/registry/deploylog"
deployconfiginstantiate "github.com/openshift/origin/pkg/apps/registry/instantiate"
deployrollback "github.com/openshift/origin/pkg/apps/registry/rollback"
imageclientinternal "github.com/openshift/origin/pkg/image/generated/internalclientset"
)
type ExtraConfig struct {
KubeAPIServerClientConfig *restclient.Config
// TODO these should all become local eventually
Scheme *runtime.Scheme
Registry *registered.APIRegistrationManager
Codecs serializer.CodecFactory
makeV1Storage sync.Once
v1Storage map[string]rest.Storage
v1StorageErr error
}
type AppsServerConfig struct {
GenericConfig *genericapiserver.RecommendedConfig
ExtraConfig ExtraConfig
}
type AppsServer struct {
GenericAPIServer *genericapiserver.GenericAPIServer
}
type completedConfig struct {
GenericConfig genericapiserver.CompletedConfig
ExtraConfig *ExtraConfig
}
type CompletedConfig struct {
// Embed a private pointer that cannot be instantiated outside of this package.
*completedConfig
}
// Complete fills in any fields not set that are required to have valid data. It's mutating the receiver.
func (c *AppsServerConfig) Complete() completedConfig {
cfg := completedConfig{
c.GenericConfig.Complete(),
&c.ExtraConfig,
}
return cfg
}
// New returns a new instance of AppsServer from the given config.
func (c completedConfig) New(delegationTarget genericapiserver.DelegationTarget) (*AppsServer, error) {
genericServer, err := c.GenericConfig.New("apps.openshift.io-apiserver", delegationTarget)
if err != nil {
return nil, err
}
s := &AppsServer{
GenericAPIServer: genericServer,
}
v1Storage, err := c.V1RESTStorage()
if err != nil {
return nil, err
}
parameterCodec := runtime.NewParameterCodec(c.ExtraConfig.Scheme)
apiGroupInfo := genericapiserver.NewDefaultAPIGroupInfo(appsapiv1.GroupName, c.ExtraConfig.Registry, c.ExtraConfig.Scheme, parameterCodec, c.ExtraConfig.Codecs)
apiGroupInfo.GroupMeta.GroupVersion = appsapiv1.SchemeGroupVersion
apiGroupInfo.VersionedResourcesStorageMap[appsapiv1.SchemeGroupVersion.Version] = v1Storage
if err := s.GenericAPIServer.InstallAPIGroup(&apiGroupInfo); err != nil {
return nil, err
}
return s, nil
}
func (c *completedConfig) V1RESTStorage() (map[string]rest.Storage, error) {
c.ExtraConfig.makeV1Storage.Do(func() {
c.ExtraConfig.v1Storage, c.ExtraConfig.v1StorageErr = c.newV1RESTStorage()
})
return c.ExtraConfig.v1Storage, c.ExtraConfig.v1StorageErr
}
func (c *completedConfig) newV1RESTStorage() (map[string]rest.Storage, error) {
// TODO sort out who is using this and why. it was hardcoded before the migration and I suspect that it is being used
// to serialize out objects into annotations.
externalVersionCodec := legacyscheme.Codecs.LegacyCodec(schema.GroupVersion{Group: "", Version: "v1"})
openshiftInternalAppsClient, err := appsclientinternal.NewForConfig(c.GenericConfig.LoopbackClientConfig)
if err != nil {
return nil, err
}
// This client is using the core api server client config, since the apps server doesn't host images
openshiftInternalImageClient, err := imageclientinternal.NewForConfig(c.ExtraConfig.KubeAPIServerClientConfig)
if err != nil {
return nil, err
}
kubeInternalClient, err := kclientsetinternal.NewForConfig(c.ExtraConfig.KubeAPIServerClientConfig)
if err != nil {
return nil, err
}
deployConfigStorage, deployConfigStatusStorage, deployConfigScaleStorage, err := deployconfigetcd.NewREST(c.GenericConfig.RESTOptionsGetter)
if err != nil {
return nil, err
}
dcInstantiateStorage := deployconfiginstantiate.NewREST(
*deployConfigStorage.Store,
openshiftInternalImageClient,
kubeInternalClient,
externalVersionCodec,
c.GenericConfig.AdmissionControl,
)
deployConfigRollbackStorage := deployrollback.NewREST(openshiftInternalAppsClient, kubeInternalClient, externalVersionCodec)
v1Storage := map[string]rest.Storage{}
v1Storage["deploymentConfigs"] = deployConfigStorage
v1Storage["deploymentConfigs/scale"] = deployConfigScaleStorage
v1Storage["deploymentConfigs/status"] = deployConfigStatusStorage
v1Storage["deploymentConfigs/rollback"] = deployConfigRollbackStorage
v1Storage["deploymentConfigs/log"] = deploylogregistry.NewREST(openshiftInternalAppsClient.Apps(), kubeInternalClient.Core(), kubeInternalClient.Core())
v1Storage["deploymentConfigs/instantiate"] = dcInstantiateStorage
return v1Storage, nil
}