mirror of
https://github.com/edgelesssys/constellation.git
synced 2024-12-12 01:14:28 -05:00
690b50b29d
* Remove unused package * Add Go package docs to most packages Signed-off-by: Daniel Weiße <dw@edgeless.systems> Signed-off-by: Fabian Kammel <fk@edgeless.systems> Signed-off-by: Paul Meyer <49727155+katexochen@users.noreply.github.com> Co-authored-by: Paul Meyer <49727155+katexochen@users.noreply.github.com> Co-authored-by: Fabian Kammel <fk@edgeless.systems>
49 lines
1.3 KiB
Go
49 lines
1.3 KiB
Go
/*
|
|
Copyright (c) Edgeless Systems GmbH
|
|
|
|
SPDX-License-Identifier: AGPL-3.0-only
|
|
*/
|
|
|
|
// Package kubewaiter is used to wait for the Kubernetes API to be available.
|
|
package kubewaiter
|
|
|
|
import (
|
|
"context"
|
|
"time"
|
|
|
|
corev1 "k8s.io/api/core/v1"
|
|
|
|
"github.com/edgelesssys/constellation/v2/internal/retry"
|
|
)
|
|
|
|
// KubernetesClient is an interface for the Kubernetes client.
|
|
// It is used to check if the Kubernetes API is available.
|
|
type KubernetesClient interface {
|
|
ListAllNamespaces(ctx context.Context) (*corev1.NamespaceList, error)
|
|
}
|
|
|
|
// CloudKubeAPIWaiter waits for the Kubernetes API to be available.
|
|
type CloudKubeAPIWaiter struct{}
|
|
|
|
// Wait waits for the Kubernetes API to be available.
|
|
// Note that the kubernetesClient must have the kubeconfig already set.
|
|
func (w *CloudKubeAPIWaiter) Wait(ctx context.Context, kubernetesClient KubernetesClient) error {
|
|
funcAlwaysRetriable := func(err error) bool { return true }
|
|
|
|
doer := &kubeDoer{kubeClient: kubernetesClient}
|
|
retrier := retry.NewIntervalRetrier(doer, 5*time.Second, funcAlwaysRetriable)
|
|
if err := retrier.Do(ctx); err != nil {
|
|
return doer.Do(context.Background())
|
|
}
|
|
return nil
|
|
}
|
|
|
|
type kubeDoer struct {
|
|
kubeClient KubernetesClient
|
|
}
|
|
|
|
func (d *kubeDoer) Do(ctx context.Context) error {
|
|
_, err := d.kubeClient.ListAllNamespaces(ctx)
|
|
return err
|
|
}
|