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Merge pull request #18384 from deads2k/gv-clientcache

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k8s-merge-robot 2015-12-14 02:25:49 -08:00
commit 7e942bf9b3
2 changed files with 52 additions and 30 deletions
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60
pkg/kubectl/cmd/util/clientcache.go
View File

@ -25,8 +25,8 @@ import (
func NewClientCache(loader clientcmd.ClientConfig) *ClientCache { func NewClientCache(loader clientcmd.ClientConfig) *ClientCache {
return &ClientCache{ return &ClientCache{
clients: make(map[string]*client.Client), clients: make(map[unversioned.GroupVersion]*client.Client),
configs: make(map[string]*client.Config), configs: make(map[unversioned.GroupVersion]*client.Config),
loader: loader, loader: loader,
} }
} }
@ -35,15 +35,15 @@ func NewClientCache(loader clientcmd.ClientConfig) *ClientCache {
// is invoked only once // is invoked only once
type ClientCache struct { type ClientCache struct {
loader clientcmd.ClientConfig loader clientcmd.ClientConfig
clients map[string]*client.Client clients map[unversioned.GroupVersion]*client.Client
configs map[string]*client.Config configs map[unversioned.GroupVersion]*client.Config
defaultConfig *client.Config defaultConfig *client.Config
defaultClient *client.Client defaultClient *client.Client
matchVersion bool matchVersion bool
} }
// ClientConfigForVersion returns the correct config for a server // ClientConfigForVersion returns the correct config for a server
func (c *ClientCache) ClientConfigForVersion(version string) (*client.Config, error) { func (c *ClientCache) ClientConfigForVersion(version *unversioned.GroupVersion) (*client.Config, error) {
if c.defaultConfig == nil { if c.defaultConfig == nil {
config, err := c.loader.ClientConfig() config, err := c.loader.ClientConfig()
if err != nil { if err != nil {
@ -56,20 +56,20 @@ func (c *ClientCache) ClientConfigForVersion(version string) (*client.Config, er
} }
} }
} }
if config, ok := c.configs[version]; ok { if version != nil {
return config, nil if config, ok := c.configs[*version]; ok {
return config, nil
}
} }
// TODO: have a better config copy method // TODO: have a better config copy method
config := *c.defaultConfig config := *c.defaultConfig
// TODO these fall out when we finish the refactor // TODO these fall out when we finish the refactor
var preferredGV *unversioned.GroupVersion var preferredGV *unversioned.GroupVersion
if len(version) > 0 { if version != nil {
gv, err := unversioned.ParseGroupVersion(version) versionCopy := *version
if err != nil { preferredGV = &versionCopy
return nil, err
}
preferredGV = &gv
} }
negotiatedVersion, err := client.NegotiateVersion(c.defaultClient, &config, preferredGV, registered.RegisteredGroupVersions) negotiatedVersion, err := client.NegotiateVersion(c.defaultClient, &config, preferredGV, registered.RegisteredGroupVersions)
@ -78,31 +78,49 @@ func (c *ClientCache) ClientConfigForVersion(version string) (*client.Config, er
} }
config.GroupVersion = negotiatedVersion config.GroupVersion = negotiatedVersion
client.SetKubernetesDefaults(&config) client.SetKubernetesDefaults(&config)
c.configs[version] = &config
if version != nil {
c.configs[*version] = &config
}
// `version` does not necessarily equal `config.Version`. However, we know that we call this method again with // `version` does not necessarily equal `config.Version`. However, we know that we call this method again with
// `config.Version`, we should get the the config we've just built. // `config.Version`, we should get the the config we've just built.
configCopy := config configCopy := config
c.configs[config.GroupVersion.String()] = &configCopy c.configs[*config.GroupVersion] = &configCopy
return &config, nil return &config, nil
} }
// ClientForVersion initializes or reuses a client for the specified version, or returns an // ClientForVersion initializes or reuses a client for the specified version, or returns an
// error if that is not possible // error if that is not possible
func (c *ClientCache) ClientForVersion(version string) (*client.Client, error) { func (c *ClientCache) ClientForVersion(version *unversioned.GroupVersion) (*client.Client, error) {
if client, ok := c.clients[version]; ok { if version != nil {
return client, nil if client, ok := c.clients[*version]; ok {
return client, nil
}
} }
config, err := c.ClientConfigForVersion(version) config, err := c.ClientConfigForVersion(version)
if err != nil { if err != nil {
return nil, err return nil, err
} }
client, err := client.New(config)
kubeclient, err := client.New(config)
if err != nil { if err != nil {
return nil, err return nil, err
} }
c.clients[*config.GroupVersion] = kubeclient
c.clients[config.GroupVersion.String()] = client // `version` does not necessarily equal `config.Version`. However, we know that if we call this method again with
return client, nil // `version`, we should get a client based on the same config we just found. There's no guarantee that a client
// is copiable, so create a new client and save it in the cache.
if version != nil {
configCopy := *config
kubeclient, err := client.New(&configCopy)
if err != nil {
return nil, err
}
c.clients[*version] = kubeclient
}
return kubeclient, nil
} }

22
pkg/kubectl/cmd/util/factory.go
View File

@ -148,17 +148,18 @@ func NewFactory(optionalClientConfig clientcmd.ClientConfig) *Factory {
return kubectl.OutputVersionMapper{RESTMapper: mapper, OutputVersions: []unversioned.GroupVersion{cmdApiVersion}}, api.Scheme return kubectl.OutputVersionMapper{RESTMapper: mapper, OutputVersions: []unversioned.GroupVersion{cmdApiVersion}}, api.Scheme
}, },
Client: func() (*client.Client, error) { Client: func() (*client.Client, error) {
return clients.ClientForVersion("") return clients.ClientForVersion(nil)
}, },
ClientConfig: func() (*client.Config, error) { ClientConfig: func() (*client.Config, error) {
return clients.ClientConfigForVersion("") return clients.ClientConfigForVersion(nil)
}, },
RESTClient: func(mapping *meta.RESTMapping) (resource.RESTClient, error) { RESTClient: func(mapping *meta.RESTMapping) (resource.RESTClient, error) {
gvk, err := api.RESTMapper.KindFor(mapping.Resource) gvk, err := api.RESTMapper.KindFor(mapping.Resource)
if err != nil { if err != nil {
return nil, err return nil, err
} }
client, err := clients.ClientForVersion(mapping.GroupVersionKind.GroupVersion().String()) mappingVersion := mapping.GroupVersionKind.GroupVersion()
client, err := clients.ClientForVersion(&mappingVersion)
if err != nil { if err != nil {
return nil, err return nil, err
} }
@ -171,7 +172,8 @@ func NewFactory(optionalClientConfig clientcmd.ClientConfig) *Factory {
return nil, fmt.Errorf("unable to get RESTClient for resource '%s'", mapping.Resource) return nil, fmt.Errorf("unable to get RESTClient for resource '%s'", mapping.Resource)
}, },
Describer: func(mapping *meta.RESTMapping) (kubectl.Describer, error) { Describer: func(mapping *meta.RESTMapping) (kubectl.Describer, error) {
client, err := clients.ClientForVersion(mapping.GroupVersionKind.GroupVersion().String()) mappingVersion := mapping.GroupVersionKind.GroupVersion()
client, err := clients.ClientForVersion(&mappingVersion)
if err != nil { if err != nil {
return nil, err return nil, err
} }
@ -227,7 +229,7 @@ func NewFactory(optionalClientConfig clientcmd.ClientConfig) *Factory {
return meta.NewAccessor().Labels(object) return meta.NewAccessor().Labels(object)
}, },
LogsForObject: func(object, options runtime.Object) (*client.Request, error) { LogsForObject: func(object, options runtime.Object) (*client.Request, error) {
c, err := clients.ClientForVersion("") c, err := clients.ClientForVersion(nil)
if err != nil { if err != nil {
return nil, err return nil, err
} }
@ -248,14 +250,16 @@ func NewFactory(optionalClientConfig clientcmd.ClientConfig) *Factory {
} }
}, },
Scaler: func(mapping *meta.RESTMapping) (kubectl.Scaler, error) { Scaler: func(mapping *meta.RESTMapping) (kubectl.Scaler, error) {
client, err := clients.ClientForVersion(mapping.GroupVersionKind.GroupVersion().String()) mappingVersion := mapping.GroupVersionKind.GroupVersion()
client, err := clients.ClientForVersion(&mappingVersion)
if err != nil { if err != nil {
return nil, err return nil, err
} }
return kubectl.ScalerFor(mapping.GroupVersionKind.GroupKind(), client) return kubectl.ScalerFor(mapping.GroupVersionKind.GroupKind(), client)
}, },
Reaper: func(mapping *meta.RESTMapping) (kubectl.Reaper, error) { Reaper: func(mapping *meta.RESTMapping) (kubectl.Reaper, error) {
client, err := clients.ClientForVersion(mapping.GroupVersionKind.GroupVersion().String()) mappingVersion := mapping.GroupVersionKind.GroupVersion()
client, err := clients.ClientForVersion(&mappingVersion)
if err != nil { if err != nil {
return nil, err return nil, err
} }
@ -263,7 +267,7 @@ func NewFactory(optionalClientConfig clientcmd.ClientConfig) *Factory {
}, },
Validator: func(validate bool, cacheDir string) (validation.Schema, error) { Validator: func(validate bool, cacheDir string) (validation.Schema, error) {
if validate { if validate {
client, err := clients.ClientForVersion("") client, err := clients.ClientForVersion(nil)
if err != nil { if err != nil {
return nil, err return nil, err
} }
@ -309,7 +313,7 @@ func NewFactory(optionalClientConfig clientcmd.ClientConfig) *Factory {
return nil return nil
}, },
AttachablePodForObject: func(object runtime.Object) (*api.Pod, error) { AttachablePodForObject: func(object runtime.Object) (*api.Pod, error) {
client, err := clients.ClientForVersion("") client, err := clients.ClientForVersion(nil)
if err != nil { if err != nil {
return nil, err return nil, err
} }