/
client.go
96 lines (86 loc) · 3.08 KB
/
client.go
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package client
import (
"reflect"
"time"
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/runtime"
"k8s.io/apimachinery/pkg/runtime/serializer"
"k8s.io/apimachinery/pkg/util/errors"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/client-go/rest"
"github.com/golang/glog"
redis "github.com/amadeusitgroup/redis-operator/pkg/api/redis"
v1 "github.com/amadeusitgroup/redis-operator/pkg/api/redis/v1"
"github.com/amadeusitgroup/redis-operator/pkg/client/clientset/versioned"
)
// DefineRedisClusterResource defines a RedisClusterResource as a k8s CR
func DefineRedisClusterResource(clientset apiextensionsclient.Interface) (*apiextensionsv1beta1.CustomResourceDefinition, error) {
redisClusterResourceName := v1.ResourcePlural + "." + redis.GroupName
crd := &apiextensionsv1beta1.CustomResourceDefinition{
ObjectMeta: metav1.ObjectMeta{
Name: redisClusterResourceName,
},
Spec: apiextensionsv1beta1.CustomResourceDefinitionSpec{
Group: redis.GroupName,
Version: v1.SchemeGroupVersion.Version,
Scope: apiextensionsv1beta1.NamespaceScoped,
Names: apiextensionsv1beta1.CustomResourceDefinitionNames{
Plural: v1.ResourcePlural,
Singular: v1.ResourceSingular,
Kind: reflect.TypeOf(v1.RedisCluster{}).Name(),
ShortNames: []string{"rdc"},
},
},
}
_, err := clientset.ApiextensionsV1beta1().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.ApiextensionsV1beta1().CustomResourceDefinitions().Get(redisClusterResourceName, 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 {
glog.Errorf("Name conflict: %v\n", cond.Reason)
}
}
}
return false, err
})
if err != nil {
deleteErr := clientset.ApiextensionsV1beta1().CustomResourceDefinitions().Delete(redisClusterResourceName, nil)
if deleteErr != nil {
return nil, errors.NewAggregate([]error{err, deleteErr})
}
return nil, err
}
return crd, nil
}
// NewClient builds and initializes a Client and a Scheme for RedisCluster CR
func NewClient(cfg *rest.Config) (versioned.Interface, error) {
scheme := runtime.NewScheme()
if err := v1.AddToScheme(scheme); err != nil {
return nil, err
}
config := *cfg
config.GroupVersion = &v1.SchemeGroupVersion
config.APIPath = "/apis"
config.ContentType = runtime.ContentTypeJSON
config.NegotiatedSerializer = serializer.DirectCodecFactory{CodecFactory: serializer.NewCodecFactory(scheme)}
cs, err := versioned.NewForConfig(&config)
if err != nil {
return nil, err
}
return cs, nil
}