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cr.go
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cr.go
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package client
import (
"time"
wfv1 "github.com/argoproj/argo/api/workflow/v1"
log "github.com/sirupsen/logrus"
apiextensionsv1beta1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1beta1"
apiextensionsclient "k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/errors"
"k8s.io/apimachinery/pkg/util/wait"
// Uncomment the following line to load the gcp plugin (only required to authenticate against GKE clusters).
// _ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
)
func CreateCustomResourceDefinition(clientset apiextensionsclient.Interface) (*apiextensionsv1beta1.CustomResourceDefinition, error) {
log.Infof("Creating Workflow CRD")
crd := &apiextensionsv1beta1.CustomResourceDefinition{
ObjectMeta: metav1.ObjectMeta{
Name: wfv1.CRDFullName,
},
Spec: apiextensionsv1beta1.CustomResourceDefinitionSpec{
Group: wfv1.CRDGroup,
Version: wfv1.SchemeGroupVersion.Version,
Scope: apiextensionsv1beta1.NamespaceScoped,
Names: apiextensionsv1beta1.CustomResourceDefinitionNames{
Plural: wfv1.CRDPlural,
Kind: wfv1.CRDKind,
ShortNames: []string{wfv1.CRDShortName},
},
},
}
_, err := clientset.Apiextensions().CustomResourceDefinitions().Create(crd)
if err != nil {
return nil, err
}
// wait for CRD being established
err = wait.Poll(500*time.Millisecond, 60*time.Second, func() (bool, error) {
crd, err = clientset.Apiextensions().CustomResourceDefinitions().Get(wfv1.CRDFullName, 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 {
log.Errorf("Name conflict: %v", cond.Reason)
}
}
}
return false, err
})
if err != nil {
deleteErr := clientset.ApiextensionsV1beta1().CustomResourceDefinitions().Delete(wfv1.CRDFullName, nil)
if deleteErr != nil {
return nil, errors.NewAggregate([]error{err, deleteErr})
}
return nil, err
}
return crd, nil
}
// func WaitWorkflowCompletion(wfClient *rest.RESTClient, name string) error {
// return wait.Poll(100*time.Millisecond, 10*time.Second, func() (bool, error) {
// var wf wfv1.Workflow
// err := wfClient.Get().
// Resource(wfv1.CRDPlural).
// Namespace(apiv1.NamespaceDefault).
// Name(name).
// Do().Into(&wf)
// if err == nil && wf.Status == wfv1.WorkflowStatusFailed {
// return true, nil
// }
// return false, err
// })
// }