ceph-csi/e2e/node.go
Rakshith R 43f753760b cleanup: resolve nlreturn linter issues
nlreturn linter requires a new line before return
and branch statements except when the return is alone
inside a statement group (such as an if statement) to
increase code clarity. This commit addresses such issues.

Updates: #1586

Signed-off-by: Rakshith R <rar@redhat.com>
2021-07-22 06:05:01 +00:00

68 lines
1.9 KiB
Go

package e2e
import (
"context"
"errors"
"fmt"
core "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
"k8s.io/kubernetes/test/e2e/framework"
)
func createNodeLabel(f *framework.Framework, labelKey, labelValue string) error {
// NOTE: This makes all nodes (in a multi-node setup) in the test take
// the same label values, which is fine for the test
nodes, err := f.ClientSet.CoreV1().Nodes().List(context.TODO(), metav1.ListOptions{})
if err != nil {
return fmt.Errorf("failed to list node: %w", err)
}
for i := range nodes.Items {
framework.AddOrUpdateLabelOnNode(f.ClientSet, nodes.Items[i].Name, labelKey, labelValue)
}
return nil
}
func deleteNodeLabel(c kubernetes.Interface, labelKey string) error {
nodes, err := c.CoreV1().Nodes().List(context.TODO(), metav1.ListOptions{})
if err != nil {
return fmt.Errorf("failed to list node: %w", err)
}
for i := range nodes.Items {
framework.RemoveLabelOffNode(c, nodes.Items[i].Name, labelKey)
}
return nil
}
func checkNodeHasLabel(c kubernetes.Interface, labelKey, labelValue string) error {
nodes, err := c.CoreV1().Nodes().List(context.TODO(), metav1.ListOptions{})
if err != nil {
return fmt.Errorf("failed to list node: %w", err)
}
for i := range nodes.Items {
framework.ExpectNodeHasLabel(c, nodes.Items[i].Name, labelKey, labelValue)
}
return nil
}
// List all nodes in the cluster (we have one), and return the IP-address.
// Possibly need to add a selector, pick the node where a Pod is running?
func getKubeletIP(c kubernetes.Interface) (string, error) {
nodes, err := c.CoreV1().Nodes().List(context.TODO(), metav1.ListOptions{})
if err != nil {
return "", fmt.Errorf("failed to list node: %w", err)
}
for _, address := range nodes.Items[0].Status.Addresses {
if address.Type == core.NodeInternalIP {
return address.Address, nil
}
}
return "", errors.New("could not find internal IP for node")
}