122 lines
3.1 KiB
Go
122 lines
3.1 KiB
Go
/*
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Copyright (c) 2017 OpenStack Foundation.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package util
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import (
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"fmt"
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"time"
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"k8s.io/api/core/v1"
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apiextensionsv1beta1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1beta1"
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apiextensionsclient "k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/util/errors"
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"k8s.io/apimachinery/pkg/util/wait"
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"k8s.io/client-go/rest"
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"k8s.io/client-go/tools/clientcmd"
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)
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const (
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defaultQPS = 100
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defaultBurst = 100
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)
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// NewClusterConfig builds a kubernetes cluster config.
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func NewClusterConfig(kubeConfig string) (*rest.Config, error) {
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var cfg *rest.Config
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var err error
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if kubeConfig != "" {
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cfg, err = clientcmd.BuildConfigFromFlags("", kubeConfig)
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} else {
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cfg, err = rest.InClusterConfig()
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}
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if err != nil {
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return nil, err
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}
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// Setup default QPS and burst.
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cfg.QPS = defaultQPS
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cfg.Burst = defaultBurst
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return cfg, nil
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}
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func WaitForCRDReady(clientset apiextensionsclient.Interface, crdName string) error {
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err := wait.Poll(500*time.Millisecond, 60*time.Second, func() (bool, error) {
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crd, err := clientset.ApiextensionsV1beta1().CustomResourceDefinitions().Get(crdName, metav1.GetOptions{})
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if err != nil {
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return false, err
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}
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for _, cond := range crd.Status.Conditions {
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switch cond.Type {
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case apiextensionsv1beta1.Established:
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if cond.Status == apiextensionsv1beta1.ConditionTrue {
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return true, err
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}
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case apiextensionsv1beta1.NamesAccepted:
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if cond.Status == apiextensionsv1beta1.ConditionFalse {
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return false, fmt.Errorf("Name conflict when creating CRD: %v\n", cond.Reason)
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}
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}
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}
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return false, err
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})
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if err != nil {
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deleteErr := clientset.ApiextensionsV1beta1().CustomResourceDefinitions().Delete(crdName, nil)
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if deleteErr != nil {
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return errors.NewAggregate([]error{err, deleteErr})
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}
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return err
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}
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return nil
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}
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func LoadBalancerStatusDeepCopy(lb *v1.LoadBalancerStatus) *v1.LoadBalancerStatus {
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c := &v1.LoadBalancerStatus{}
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c.Ingress = make([]v1.LoadBalancerIngress, len(lb.Ingress))
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for i := range lb.Ingress {
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c.Ingress[i] = lb.Ingress[i]
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}
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return c
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}
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func LoadBalancerStatusEqual(l, r *v1.LoadBalancerStatus) bool {
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return ingressSliceEqual(l.Ingress, r.Ingress)
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}
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func ingressSliceEqual(lhs, rhs []v1.LoadBalancerIngress) bool {
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if len(lhs) != len(rhs) {
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return false
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}
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for i := range lhs {
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if !ingressEqual(&lhs[i], &rhs[i]) {
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return false
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}
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}
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return true
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}
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func ingressEqual(lhs, rhs *v1.LoadBalancerIngress) bool {
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if lhs.IP != rhs.IP {
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return false
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}
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if lhs.Hostname != rhs.Hostname {
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return false
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}
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return true
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}
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