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proxy_protocol.go
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proxy_protocol.go
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// Copyright (c) 2020 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 istio
import (
"context"
"path/filepath"
"k8s.io/apimachinery/pkg/api/meta"
"github.com/gardener/gardener/pkg/client/kubernetes"
"github.com/gardener/gardener/pkg/operation/botanist/component"
)
type proxyProtocol struct {
values *ProxyValues
namespace string
chartApplier kubernetes.ChartApplier
chartPath string
}
// ProxyValues holds values for the istio-proxy-protocol chart.
type ProxyValues struct {
Labels map[string]string `json:"labels,omitempty"`
}
// NewProxyProtocolGateway creates a new DeployWaiter for istio which
// adds a PROXY Protocol listener to the istio-ingressgateway.
func NewProxyProtocolGateway(
values *ProxyValues,
namespace string,
chartApplier kubernetes.ChartApplier,
chartsRootPath string,
) component.DeployWaiter {
return &proxyProtocol{
values: values,
namespace: namespace,
chartApplier: chartApplier,
chartPath: filepath.Join(chartsRootPath, istioReleaseName, "istio-proxy-protocol"),
}
}
func (i *proxyProtocol) Deploy(ctx context.Context) error {
return i.chartApplier.Apply(ctx, i.chartPath, i.namespace, istioReleaseName, kubernetes.Values(i.values))
}
func (i *proxyProtocol) Destroy(ctx context.Context) error {
return i.chartApplier.Delete(
ctx,
i.chartPath,
i.namespace,
istioReleaseName,
kubernetes.TolerateErrorFunc(meta.IsNoMatchError),
)
}
func (i *proxyProtocol) Wait(ctx context.Context) error {
return nil
}
func (i *proxyProtocol) WaitCleanup(ctx context.Context) error {
return nil
}