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/*
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
// Based on Code: https://github.com/johandry/klient
package client
import (
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
// CreateNamespace creates a namespace with the given name
func (c *Client) CreateNamespace(namespace string) error {
ns := &v1.Namespace{
ObjectMeta: metav1.ObjectMeta{
Name: namespace,
Labels: map[string]string{
"name": namespace,
},
},
}
_, err := c.Clientset.CoreV1().Namespaces().Create(ns)
// if errors.IsAlreadyExists(err) {
// // If it failed because the NS is already there, then do not return such error
// return nil
// }
return err
}
// DeleteNamespace deletes the namespace with the given name
func (c *Client) DeleteNamespace(namespace string) error {
return c.Clientset.CoreV1().Namespaces().Delete(namespace, &metav1.DeleteOptions{})
}
// NodesReady returns the number of nodes ready
func (c *Client) NodesReady() (ready int, total int, err error) {
nodes, err := c.Clientset.CoreV1().Nodes().List(metav1.ListOptions{})
if err != nil {
return 0, 0, err
}
total = len(nodes.Items)
if total == 0 {
return 0, 0, nil
}
for _, n := range nodes.Items {
for _, c := range n.Status.Conditions {
if c.Type == "Ready" && c.Status == "True" {
ready++
break
}
}
}
return ready, len(nodes.Items), nil
}
// Version returns the cluster version. It can be used to verify if the cluster
// is reachable. It will return an error if failed to connect.
func (c *Client) Version() (string, error) {
v, err := c.Clientset.ServerVersion()
if err != nil {
return "", err
}
return v.String(), nil
}
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