/
customresourcedefinition.go
63 lines (56 loc) · 2.72 KB
/
customresourcedefinition.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
// Copyright (c) 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 health
import (
corev1 "k8s.io/api/core/v1"
apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
)
var (
trueCrdConditionTypes = []apiextensionsv1.CustomResourceDefinitionConditionType{apiextensionsv1.NamesAccepted, apiextensionsv1.Established}
falseOptionalCrdConditionTypes = []apiextensionsv1.CustomResourceDefinitionConditionType{apiextensionsv1.Terminating}
)
// CheckCustomResourceDefinition checks whether the given CustomResourceDefinition is healthy.
// A CRD is considered healthy if its `NamesAccepted` and `Established` conditions are with status `True`
// and its `Terminating` condition is missing or has status `False`.
func CheckCustomResourceDefinition(crd *apiextensionsv1.CustomResourceDefinition) error {
for _, trueConditionType := range trueCrdConditionTypes {
conditionType := string(trueConditionType)
condition := getCustomResourceDefinitionCondition(crd.Status.Conditions, trueConditionType)
if condition == nil {
return requiredConditionMissing(conditionType)
}
if err := checkConditionState(conditionType, string(corev1.ConditionTrue), string(condition.Status), condition.Reason, condition.Message); err != nil {
return err
}
}
for _, falseOptionalConditionType := range falseOptionalCrdConditionTypes {
conditionType := string(falseOptionalConditionType)
condition := getCustomResourceDefinitionCondition(crd.Status.Conditions, falseOptionalConditionType)
if condition == nil {
continue
}
if err := checkConditionState(conditionType, string(corev1.ConditionFalse), string(condition.Status), condition.Reason, condition.Message); err != nil {
return err
}
}
return nil
}
func getCustomResourceDefinitionCondition(conditions []apiextensionsv1.CustomResourceDefinitionCondition, conditionType apiextensionsv1.CustomResourceDefinitionConditionType) *apiextensionsv1.CustomResourceDefinitionCondition {
for _, condition := range conditions {
if condition.Type == conditionType {
return &condition
}
}
return nil
}