cert-manager/cmd/controller/crd.go
2017-08-07 21:07:50 +01:00

71 lines
2.1 KiB
Go

package main
import (
"fmt"
"log"
"time"
apiextensionsv1beta1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1beta1"
apiextensionsclient "k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset"
apiErrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/errors"
"k8s.io/apimachinery/pkg/util/wait"
)
func CreateCustomResourceDefinition(clientset apiextensionsclient.Interface, name, groupName, version, plural, kind string) (*apiextensionsv1beta1.CustomResourceDefinition, error) {
crd := &apiextensionsv1beta1.CustomResourceDefinition{
ObjectMeta: metav1.ObjectMeta{
Name: name,
},
Spec: apiextensionsv1beta1.CustomResourceDefinitionSpec{
Group: groupName,
Version: version,
Scope: apiextensionsv1beta1.NamespaceScoped,
Names: apiextensionsv1beta1.CustomResourceDefinitionNames{
Plural: plural,
Kind: kind,
},
},
}
crd, err := clientset.ApiextensionsV1beta1().CustomResourceDefinitions().Create(crd)
if err != nil {
if apiErrors.IsAlreadyExists(err) {
return crd, nil
}
return nil, err
}
// wait for CRD being established
err = wait.Poll(500*time.Millisecond, 60*time.Second, func() (bool, error) {
crd, err = clientset.ApiextensionsV1beta1().CustomResourceDefinitions().Get(name, metav1.GetOptions{})
if err != nil {
return false, err
}
for _, cond := range crd.Status.Conditions {
switch cond.Type {
case apiextensionsv1beta1.Established:
if cond.Status == apiextensionsv1beta1.ConditionTrue {
return true, err
}
case apiextensionsv1beta1.NamesAccepted:
if cond.Status == apiextensionsv1beta1.ConditionFalse {
fmt.Printf("Name conflict: %v\n", cond.Reason)
}
}
}
return false, err
})
if err != nil {
deleteErr := clientset.ApiextensionsV1beta1().CustomResourceDefinitions().Delete(name, nil)
if deleteErr != nil {
return nil, errors.NewAggregate([]error{err, deleteErr})
}
return nil, err
}
log.Printf("Registered CustomResourceDefinition for apiVersion=%s/%s kind=%s", groupName, version, kind)
return crd, nil
}