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tableconvertor.go
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/
tableconvertor.go
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// Copyright (c) 2018 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 storage
import (
"context"
"k8s.io/apimachinery/pkg/api/meta"
metatable "k8s.io/apimachinery/pkg/api/meta/table"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
metav1beta1 "k8s.io/apimachinery/pkg/apis/meta/v1beta1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apiserver/pkg/registry/rest"
"github.com/gardener/gardener/pkg/apis/core"
"github.com/gardener/gardener/pkg/apis/core/helper"
)
var swaggerMetadataDescriptions = metav1.ObjectMeta{}.SwaggerDoc()
type convertor struct {
headers []metav1beta1.TableColumnDefinition
}
func newTableConvertor() rest.TableConvertor {
return &convertor{
headers: []metav1beta1.TableColumnDefinition{
{Name: "Name", Type: "string", Format: "name", Description: swaggerMetadataDescriptions["name"]},
{Name: "Status", Type: "string", Format: "name", Description: swaggerMetadataDescriptions["status"]},
{Name: "Provider", Type: "string", Format: "name", Description: swaggerMetadataDescriptions["provider"]},
{Name: "Region", Type: "string", Format: "name", Description: swaggerMetadataDescriptions["region"]},
{Name: "Age", Type: "date", Description: swaggerMetadataDescriptions["creationTimestamp"]},
{Name: "Version", Type: "string", Format: "name", Description: swaggerMetadataDescriptions["version"]},
{Name: "K8S Version", Type: "string", Format: "name", Description: swaggerMetadataDescriptions["kubernetesVersion"]},
},
}
}
// ConvertToTable converts the output to a table.
func (c *convertor) ConvertToTable(ctx context.Context, obj runtime.Object, tableOptions runtime.Object) (*metav1beta1.Table, error) {
var (
err error
table = &metav1beta1.Table{
ColumnDefinitions: c.headers,
}
)
if m, err := meta.ListAccessor(obj); err == nil {
table.ResourceVersion = m.GetResourceVersion()
table.Continue = m.GetContinue()
} else {
if m, err := meta.CommonAccessor(obj); err == nil {
table.ResourceVersion = m.GetResourceVersion()
}
}
table.Rows, err = metatable.MetaToTableRow(obj, func(obj runtime.Object, m metav1.Object, name, age string) ([]interface{}, error) {
var (
seed = obj.(*core.Seed)
cells = []interface{}{}
)
gardenletReadyCondition := helper.GetCondition(seed.Status.Conditions, core.SeedGardenletReady)
seedBootstrappedCondition := helper.GetCondition(seed.Status.Conditions, core.SeedBootstrapped)
backupbucketCondition := helper.GetCondition(seed.Status.Conditions, core.SeedBackupBucketsReady)
seedSystemComponentsHealthyCondition := helper.GetCondition(seed.Status.Conditions, core.SeedSystemComponentsHealthy)
cells = append(cells, seed.Name)
if gardenletReadyCondition != nil && gardenletReadyCondition.Status == core.ConditionUnknown {
cells = append(cells, "Unknown")
} else if (gardenletReadyCondition == nil || gardenletReadyCondition.Status != core.ConditionTrue) ||
(seedBootstrappedCondition == nil || seedBootstrappedCondition.Status != core.ConditionTrue) ||
(backupbucketCondition != nil && backupbucketCondition.Status != core.ConditionTrue) ||
(seedSystemComponentsHealthyCondition != nil && seedSystemComponentsHealthyCondition.Status != core.ConditionTrue) {
cells = append(cells, "NotReady")
} else {
cells = append(cells, "Ready")
}
cells = append(cells, seed.Spec.Provider.Type)
cells = append(cells, seed.Spec.Provider.Region)
cells = append(cells, metatable.ConvertToHumanReadableDateType(seed.CreationTimestamp))
if gardener := seed.Status.Gardener; gardener != nil && len(gardener.Version) > 0 {
cells = append(cells, gardener.Version)
} else {
cells = append(cells, "<unknown>")
}
if k8sVersion := seed.Status.KubernetesVersion; k8sVersion != nil {
cells = append(cells, *k8sVersion)
} else {
cells = append(cells, "<unknown>")
}
return cells, nil
})
return table, err
}