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vpnshoot.go
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vpnshoot.go
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// Copyright (c) 2021 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 botanist
import (
"context"
"github.com/gardener/gardener/pkg/operation/botanist/component/vpnseedserver"
"github.com/gardener/gardener/pkg/operation/botanist/component/vpnshoot"
"github.com/gardener/gardener/pkg/utils/images"
"github.com/gardener/gardener/pkg/utils/imagevector"
)
// DefaultVPNShoot returns a deployer for the VPNShoot
func (b *Botanist) DefaultVPNShoot() (vpnshoot.Interface, error) {
var (
imageName = images.ImageNameVpnShoot
nodeNetworkCIDR string
reversedVPNValues = vpnshoot.ReversedVPNValues{
Enabled: false,
}
)
if nodeNetwork := b.Shoot.GetInfo().Spec.Networking.Nodes; nodeNetwork != nil {
nodeNetworkCIDR = *nodeNetwork
}
if b.Shoot.ReversedVPNEnabled {
imageName = images.ImageNameVpnShootClient
reversedVPNValues = vpnshoot.ReversedVPNValues{
Enabled: true,
Header: "outbound|1194||" + vpnseedserver.ServiceName + "." + b.Shoot.SeedNamespace + ".svc.cluster.local",
Endpoint: b.outOfClusterAPIServerFQDN(),
OpenVPNPort: 8132,
}
}
image, err := b.ImageVector.FindImage(imageName, imagevector.RuntimeVersion(b.ShootVersion()), imagevector.TargetVersion(b.ShootVersion()))
if err != nil {
return nil, err
}
values := vpnshoot.Values{
Image: image.String(),
VPAEnabled: b.Shoot.WantsVerticalPodAutoscaler,
ReversedVPN: reversedVPNValues,
Network: vpnshoot.NetworkValues{
PodCIDR: b.Shoot.Networks.Pods.String(),
ServiceCIDR: b.Shoot.Networks.Services.String(),
NodeCIDR: nodeNetworkCIDR,
},
PSPDisabled: b.Shoot.PSPDisabled,
KubernetesVersion: b.Shoot.KubernetesVersion,
}
return vpnshoot.New(
b.SeedClientSet.Client(),
b.Shoot.SeedNamespace,
b.SecretsManager,
values,
), nil
}
// DeployVPNShoot deploys the VPNShoot system component.
func (b *Botanist) DeployVPNShoot(ctx context.Context) error {
secrets := vpnshoot.Secrets{}
if !b.Shoot.ReversedVPNEnabled {
dhSecret := b.getDiffieHellmanSecret()
secrets.DH = &dhSecret
}
b.Shoot.Components.SystemComponents.VPNShoot.SetSecrets(secrets)
return b.Shoot.Components.SystemComponents.VPNShoot.Deploy(ctx)
}