constellation/operators/constellation-node-operator/internal/controlplane/controlplane.go
2022-09-22 09:10:19 +02:00

39 lines
897 B
Go

/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
package controlplane
import (
"context"
"fmt"
corev1 "k8s.io/api/core/v1"
"sigs.k8s.io/controller-runtime/pkg/client"
nodeutil "github.com/edgelesssys/constellation/operators/constellation-node-operator/v2/internal/node"
)
// ListControlPlaneIPs retrieves a list of VPC IPs for the control plane nodes from kubernetes.
func ListControlPlaneIPs(k8sClient client.Client) ([]string, error) {
var nodes corev1.NodeList
if err := k8sClient.List(context.TODO(), &nodes); err != nil {
return nil, fmt.Errorf("listing nodes: %w", err)
}
var ips []string
for _, node := range nodes.Items {
if !nodeutil.IsControlPlaneNode(&node) {
continue
}
for _, addr := range node.Status.Addresses {
if addr.Type == corev1.NodeInternalIP {
ips = append(ips, addr.Address)
}
}
}
return ips, nil
}