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gardener.go
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gardener.go
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// Copyright © 2018 Andreas Fritzler
//
// 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 gardener
import (
"context"
"fmt"
"github.com/gardener/gardener/pkg/apis/core/v1beta1"
garden "github.com/gardener/gardener/pkg/client/core/clientset/versioned"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/version"
restclient "k8s.io/client-go/rest"
"k8s.io/client-go/tools/clientcmd"
)
type Gardener interface {
GetClientset() *garden.Clientset
GetVersion() string
GetShootList() (*v1beta1.ShootList, error)
GetShoots() (*[]v1beta1.Shoot, error)
GetSeedList() (*v1beta1.SeedList, error)
GetSeeds() (*[]v1beta1.Seed, error)
}
type gardener struct {
config *restclient.Config
clientset *garden.Clientset
version *version.Info
}
func NewGardener(kubeconfig string) (Gardener, error) {
config, err := clientcmd.BuildConfigFromFlags("", kubeconfig)
if err != nil {
return nil, fmt.Errorf("failed to load kubeconfig: %s", err)
}
gardenClientset, err := garden.NewForConfig(config)
if err != nil {
return nil, fmt.Errorf("failed to create garden clientset: %s", err)
}
version, err := gardenClientset.ServerVersion()
if err != nil {
return nil, fmt.Errorf("failed to get server version: %s", err)
}
return &gardener{config: config, clientset: gardenClientset, version: version}, nil
}
func (g *gardener) GetClientset() *garden.Clientset {
return g.clientset
}
func (g *gardener) GetVersion() string {
return g.version.String()
}
func (g *gardener) GetShootList() (*v1beta1.ShootList, error) {
shootlist, err := g.clientset.CoreV1beta1().Shoots("").List(context.TODO(), metav1.ListOptions{})
if err != nil {
return nil, fmt.Errorf("failed to get shootlist: %s", err)
}
return shootlist, nil
}
func (g *gardener) GetShoots() (*[]v1beta1.Shoot, error) {
shootlist, err := g.GetShootList()
if err != nil {
return nil, fmt.Errorf("failed to get shoots: %s", err)
}
return &shootlist.Items, nil
}
func (g *gardener) GetSeedList() (*v1beta1.SeedList, error) {
seedlist, err := g.clientset.CoreV1beta1().Seeds().List(context.TODO(), metav1.ListOptions{})
if err != nil {
return nil, fmt.Errorf("failed to get seedlist: %s", err)
}
return seedlist, nil
}
func (g *gardener) GetSeeds() (*[]v1beta1.Seed, error) {
seedlist, err := g.GetSeedList()
if err != nil {
return nil, fmt.Errorf("failed to get seeds: %s", err)
}
return &seedlist.Items, nil
}