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component.go
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component.go
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// Copyright 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 varlibmount
import (
"k8s.io/utils/pointer"
extensionsv1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
"github.com/gardener/gardener/pkg/component/extensions/operatingsystemconfig/original/components"
"github.com/gardener/gardener/pkg/component/extensions/operatingsystemconfig/original/components/kubelet"
)
// UnitName is the name of the var-lib-mount unit.
const UnitName = "var-lib.mount"
type component struct{}
// New returns a new var-lib-mount component.
func New() *component {
return &component{}
}
func (component) Name() string {
return "var-lib-mount"
}
func (component) Config(ctx components.Context) ([]extensionsv1alpha1.Unit, []extensionsv1alpha1.File, error) {
if ctx.KubeletDataVolumeName == nil {
return nil, nil, nil
}
const pathVarLib = "/var/lib"
return []extensionsv1alpha1.Unit{
{
Name: "var-lib.mount",
Content: pointer.String(`[Unit]
Description=mount ` + pathVarLib + ` on kubelet data device
Before=` + kubelet.UnitName + `
[Mount]
What=/dev/disk/by-label/kubeletdev
Where=` + pathVarLib + `
Type=xfs
Options=defaults
[Install]
WantedBy=local-fs.target`),
},
}, nil, nil
}