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actuator_delete.go
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actuator_delete.go
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// Copyright (c) 2022 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// 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 bastion
import (
"context"
"fmt"
"time"
"github.com/gardener/gardener-extension-provider-alicloud/pkg/alicloud"
aliclient "github.com/gardener/gardener-extension-provider-alicloud/pkg/alicloud/client"
"github.com/gardener/gardener/extensions/pkg/controller"
extensionsv1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
"github.com/go-logr/logr"
)
func (a *actuator) Delete(ctx context.Context, log logr.Logger, bastion *extensionsv1alpha1.Bastion, cluster *controller.Cluster) error {
log.Info("Bastion deletion operation")
opt, err := DetermineOptions(bastion, cluster)
if err != nil {
return err
}
credentials, err := alicloud.ReadCredentialsFromSecretRef(ctx, a.client, &opt.SecretReference)
if err != nil {
return err
}
aliCloudECSClient, err := a.newClientFactory.NewECSClient(opt.Region, credentials.AccessKeyID, credentials.AccessKeySecret)
if err != nil {
return err
}
err = removeBastionInstance(aliCloudECSClient, opt)
if err != nil {
return fmt.Errorf("failed to terminate bastion instance: %w", err)
}
log.Info("Instance remove processing", "instance", opt.BastionInstanceName)
time.Sleep(10 * time.Second)
err = removeSecurityGroup(aliCloudECSClient, opt)
if err != nil {
return fmt.Errorf("failed to remove security group: %w", err)
}
log.Info("security group removed:", "security group", opt.SecurityGroupName)
return nil
}
func removeSecurityGroup(c aliclient.ECS, opt *Options) error {
response, err := c.GetSecurityGroup(opt.SecurityGroupName)
if err != nil {
return err
}
if len(response.SecurityGroups.SecurityGroup) == 0 {
return nil
}
return c.DeleteSecurityGroups(response.SecurityGroups.SecurityGroup[0].SecurityGroupId)
}
func removeBastionInstance(c aliclient.ECS, opt *Options) error {
response, err := c.GetInstances(opt.BastionInstanceName)
if err != nil {
return err
}
if len(response.Instances.Instance) == 0 {
return nil
}
return c.DeleteInstances(response.Instances.Instance[0].InstanceId, true)
}