-
Notifications
You must be signed in to change notification settings - Fork 451
/
plant_utils.go
100 lines (83 loc) · 2.86 KB
/
plant_utils.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
// 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 plant
import (
"context"
"strings"
gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1"
corev1 "k8s.io/api/core/v1"
"k8s.io/client-go/discovery"
"sigs.k8s.io/controller-runtime/pkg/client"
)
// Unknown is a constant to be used for unknown cloud info
const Unknown = "<unknown>"
// FetchCloudInfo deduces the cloud info from the plant cluster
func FetchCloudInfo(ctx context.Context, plantClient client.Client, discoveryClient discovery.DiscoveryInterface) (*StatusCloudInfo, error) {
cloudInfo, err := getClusterInfo(ctx, plantClient)
if err != nil {
return nil, err
}
kubernetesVersionInfo, err := discoveryClient.ServerVersion()
if err != nil {
return nil, err
}
cloudInfo.K8sVersion = kubernetesVersionInfo.String()
return cloudInfo, nil
}
// getClusterInfo gets the kubernetes cluster zones and Region by inspecting labels on nodes in the cluster.
func getClusterInfo(ctx context.Context, cl client.Client) (*StatusCloudInfo, error) {
nodes := &corev1.NodeList{}
if err := cl.List(ctx, nodes, client.Limit(1)); err != nil {
return nil, err
}
if len(nodes.Items) == 0 {
return &StatusCloudInfo{
CloudType: Unknown,
Region: Unknown,
}, nil
}
var (
firstNode = nodes.Items[0]
region = getRegionNameForNode(firstNode)
provider = getCloudProviderForNode(firstNode.Spec.ProviderID)
)
return &StatusCloudInfo{
Region: region,
CloudType: provider,
}, nil
}
func getCloudProviderForNode(providerID string) string {
provider := strings.Split(providerID, "://")
if len(provider) == 1 && len(providerID) == 0 {
return Unknown
}
return provider[0]
}
var regionLabels = []string{
corev1.LabelZoneRegionStable,
corev1.LabelZoneRegion,
corev1.LabelZoneFailureDomainStable,
corev1.LabelZoneFailureDomain,
}
func getRegionNameForNode(node corev1.Node) string {
for _, label := range regionLabels {
if region, ok := node.Labels[label]; ok && len(region) > 0 {
return region
}
}
return Unknown
}
func isPlantSecret(plant *gardencorev1beta1.Plant, secretKey client.ObjectKey) bool {
return plant.Spec.SecretRef.Name == secretKey.Name && plant.Namespace == secretKey.Namespace
}