/
delete_machine.go
67 lines (56 loc) · 2.78 KB
/
delete_machine.go
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// SPDX-FileCopyrightText: 2024 SAP SE or an SAP affiliate company and Gardener contributors
//
// SPDX-License-Identifier: Apache-2.0
package local
import (
"context"
"fmt"
"time"
"github.com/gardener/machine-controller-manager/pkg/util/provider/driver"
"github.com/gardener/machine-controller-manager/pkg/util/provider/machinecodes/codes"
"github.com/gardener/machine-controller-manager/pkg/util/provider/machinecodes/status"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/klog/v2"
"sigs.k8s.io/controller-runtime/pkg/client"
apiv1alpha1 "github.com/gardener/machine-controller-manager-provider-local/pkg/api/v1alpha1"
)
func (d *localDriver) DeleteMachine(ctx context.Context, req *driver.DeleteMachineRequest) (*driver.DeleteMachineResponse, error) {
if req.MachineClass.Provider != apiv1alpha1.Provider {
return nil, status.Error(codes.InvalidArgument, fmt.Sprintf("requested for Provider '%s', we only support '%s'", req.MachineClass.Provider, apiv1alpha1.Provider))
}
klog.V(3).Infof("Machine deletion request has been received for %q", req.Machine.Name)
defer klog.V(3).Infof("Machine deletion request has been processed for %q", req.Machine.Name)
userDataSecret := userDataSecretForMachine(req.Machine)
if err := d.client.Delete(ctx, userDataSecret); client.IgnoreNotFound(err) != nil {
// Unknown leads to short retry in machine controller
return nil, status.Error(codes.Unknown, fmt.Sprintf("error deleting user data secret: %s", err.Error()))
}
pod := podForMachine(req.Machine)
if err := d.client.Delete(ctx, pod); err != nil {
if !apierrors.IsNotFound(err) {
// Unknown leads to short retry in machine controller
return nil, status.Error(codes.Unknown, fmt.Sprintf("error deleting pod: %s", err.Error()))
}
return nil, status.Error(codes.NotFound, err.Error())
}
// Actively wait until pod is deleted since the extension contract in machine-controller-manager expects drivers to
// do so. If we would not wait until the pod is gone it might happen that the kubelet could re-register the Node
// object even after it was already deleted by machine-controller-manager.
timeoutCtx, cancel := context.WithTimeout(ctx, 10*time.Minute)
defer cancel()
if err := wait.PollUntilContextCancel(timeoutCtx, 5*time.Second, false, func(ctx context.Context) (bool, error) {
if err := d.client.Get(ctx, client.ObjectKeyFromObject(pod), pod); err != nil {
if apierrors.IsNotFound(err) {
return true, nil
}
// Unknown leads to short retry in machine controller
return false, status.Error(codes.Unknown, err.Error())
}
return false, nil
}); err != nil {
// will be retried with short retry by machine controller
return nil, status.Error(codes.DeadlineExceeded, err.Error())
}
return &driver.DeleteMachineResponse{}, nil
}