mirror of
https://github.com/YuzuZensai/netbird-kubernetes-operator.git
synced 2026-09-13 18:59:09 +00:00
M. EssamandGitHub
64091a6439
- It adds a helm chart that will be hosted in the Github pages URL of this repository - an admission controller operator - Basic documentation for installing the operator, configuring CRDs and example pod configuration
128 lines
3.3 KiB
Go
128 lines
3.3 KiB
Go
/*
|
|
Copyright 2025.
|
|
|
|
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.
|
|
*/
|
|
|
|
package v1
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
netbirdiov1 "github.com/netbirdio/kubernetes-operator/api/v1"
|
|
corev1 "k8s.io/api/core/v1"
|
|
"k8s.io/apimachinery/pkg/runtime"
|
|
"k8s.io/apimachinery/pkg/types"
|
|
ctrl "sigs.k8s.io/controller-runtime"
|
|
"sigs.k8s.io/controller-runtime/pkg/client"
|
|
logf "sigs.k8s.io/controller-runtime/pkg/log"
|
|
"sigs.k8s.io/controller-runtime/pkg/webhook"
|
|
)
|
|
|
|
const (
|
|
setupKeyAnnotation = "netbird.io/setup-key"
|
|
)
|
|
|
|
// nolint:unused
|
|
// log is for logging in this package.
|
|
var podlog = logf.Log.WithName("pod-resource")
|
|
|
|
// SetupPodWebhookWithManager registers the webhook for Pod in the manager.
|
|
func SetupPodWebhookWithManager(mgr ctrl.Manager, managementURL, clientImage string) error {
|
|
return ctrl.NewWebhookManagedBy(mgr).For(&corev1.Pod{}).
|
|
WithDefaulter(&PodNetbirdInjector{
|
|
client: mgr.GetClient(),
|
|
managementURL: managementURL,
|
|
clientImage: clientImage,
|
|
}).
|
|
Complete()
|
|
}
|
|
|
|
// PodNetbirdInjector struct is responsible for setting default values on the custom resource of the
|
|
// Kind Pod when those are created or updated.
|
|
type PodNetbirdInjector struct {
|
|
client client.Client
|
|
managementURL string
|
|
clientImage string
|
|
}
|
|
|
|
var _ webhook.CustomDefaulter = &PodNetbirdInjector{}
|
|
|
|
// Default implements webhook.CustomDefaulter so a webhook will be registered for the Kind Pod.
|
|
func (d *PodNetbirdInjector) Default(ctx context.Context, obj runtime.Object) error {
|
|
pod, ok := obj.(*corev1.Pod)
|
|
|
|
if !ok {
|
|
return fmt.Errorf("expected an Pod object but got %T", obj)
|
|
}
|
|
podlog.Info("Defaulting for Pod", "name", pod.GetName())
|
|
|
|
if pod.Annotations == nil || pod.Annotations[setupKeyAnnotation] == "" {
|
|
return nil
|
|
}
|
|
|
|
var nbSetupKey netbirdiov1.NBSetupKey
|
|
err := d.client.Get(ctx, types.NamespacedName{Namespace: pod.Namespace, Name: pod.Annotations[setupKeyAnnotation]}, &nbSetupKey)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
ready := false
|
|
for _, c := range nbSetupKey.Status.Conditions {
|
|
if c.Type == netbirdiov1.Ready {
|
|
ready = c.Status == corev1.ConditionTrue
|
|
}
|
|
}
|
|
if !ready {
|
|
return fmt.Errorf("NBSetupKey is not ready")
|
|
}
|
|
|
|
managementURL := d.managementURL
|
|
if nbSetupKey.Spec.ManagementURL != "" {
|
|
managementURL = nbSetupKey.Spec.ManagementURL
|
|
}
|
|
|
|
pod.Spec.Containers = append(pod.Spec.Containers, corev1.Container{
|
|
Name: "netbird",
|
|
Image: d.clientImage,
|
|
Args: []string{
|
|
"--setup-key-file",
|
|
"/etc/nbkey",
|
|
"-m",
|
|
managementURL,
|
|
},
|
|
Env: []corev1.EnvVar{
|
|
{
|
|
Name: "NB_SETUP_KEY",
|
|
ValueFrom: &corev1.EnvVarSource{
|
|
SecretKeyRef: &nbSetupKey.Spec.SecretKeyRef,
|
|
},
|
|
},
|
|
{
|
|
Name: "NB_MANAGEMENT_URL",
|
|
Value: managementURL,
|
|
},
|
|
},
|
|
SecurityContext: &corev1.SecurityContext{
|
|
Capabilities: &corev1.Capabilities{
|
|
Add: []corev1.Capability{
|
|
"NET_ADMIN",
|
|
},
|
|
},
|
|
},
|
|
})
|
|
|
|
return nil
|
|
}
|