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factory.go
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factory.go
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package kubernetes
import (
apiextensionscli "k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
crdcli "github.com/spotahome/service-level-operator/pkg/k8sautogen/client/clientset/versioned"
)
// ClientFactory knows how to get Kubernetes clients.
type ClientFactory interface {
// GetSTDClient gets the Kubernetes standard client (pods, services...).
GetSTDClient() (kubernetes.Interface, error)
// GetCRDClient gets the Kubernetes client for the CRDs described in this application.
GetCRDClient() (crdcli.Interface, error)
// GetAPIExtensionClient gets the Kubernetes api extensions client (crds...).
GetAPIExtensionClient() (apiextensionscli.Interface, error)
}
type factory struct {
restCfg *rest.Config
stdcli kubernetes.Interface
crdcli crdcli.Interface
aexcli apiextensionscli.Interface
}
// NewFactory returns a new kubernetes client factory.
func NewFactory(config *rest.Config) ClientFactory {
return &factory{
restCfg: config,
}
}
func (f *factory) GetSTDClient() (kubernetes.Interface, error) {
if f.stdcli == nil {
cli, err := kubernetes.NewForConfig(f.restCfg)
if err != nil {
return nil, err
}
f.stdcli = cli
}
return f.stdcli, nil
}
func (f *factory) GetCRDClient() (crdcli.Interface, error) {
if f.crdcli == nil {
cli, err := crdcli.NewForConfig(f.restCfg)
if err != nil {
return nil, err
}
f.crdcli = cli
}
return f.crdcli, nil
}
func (f *factory) GetAPIExtensionClient() (apiextensionscli.Interface, error) {
if f.aexcli == nil {
cli, err := apiextensionscli.NewForConfig(f.restCfg)
if err != nil {
return nil, err
}
f.aexcli = cli
}
return f.aexcli, nil
}