/
versionset.go
130 lines (112 loc) · 3.7 KB
/
versionset.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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
/*
Copyright 2023 The OpenEBS Authors.
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 usage
import (
k8sapi "github.com/openebs/lib-csi/pkg/client/k8s"
"github.com/openebs/lib-csi/pkg/common/env"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/klog/v2"
)
var (
clusterUUID = "OPENEBS_IO_USAGE_UUID"
k8sVersion = "OPENEBS_IO_K8S_VERSION"
nodeArch = "OPENEBS_IO_K8S_ARCH"
openEBSversion = "OPENEBS_IO_VERSION_TAG"
nodeOs = "OPENEBS_IO_NODE_OS"
nodeKernelVersion = "OPENEBS_IO_NODE_KERNEL_VERSION"
installerType = "OPENEBS_IO_INSTALLER_TYPE"
)
var (
GetOpenebsVersionDetails func() string
)
// RegisterVersionGetter sets the function that can be used to fetch app version details.
func RegisterVersionGetter(getter func() string) {
GetOpenebsVersionDetails = getter
}
// VersionSet is a struct which stores (sort of) fixed information about a
// k8s environment
type VersionSet struct {
id string // OPENEBS_IO_USAGE_UUID
k8sVersion string // OPENEBS_IO_K8S_VERSION
nodeArch string // OPENEBS_IO_K8S_ARCH
openebsVersion string // OPENEBS_IO_VERSION_TAG
nodeOs string // OPENEBS_IO_NODE_OS
nodeKernelVersion string // OPENEBS_IO_NODE_KERNEL_VERSION
installerType string // OPENEBS_IO_INSTALLER_TYPE
}
// NewVersion returns a new versionSet struct
func NewVersion() *VersionSet {
return &VersionSet{}
}
// fetchAndSetVersion consumes the Kubernetes API to get environment constants
// and returns a versionSet struct
func (v *VersionSet) fetchAndSetVersion() error {
var (
err error
kernelName string
arch string
)
v.id, err = getUUIDbyNS("default")
if err != nil {
return err
}
k8s, err := k8sapi.GetServerVersion()
if err != nil {
return err
}
v.k8sVersion = k8s.GitVersion
if GetOpenebsVersionDetails != nil {
v.openebsVersion = GetOpenebsVersionDetails()
}
v.nodeOs, kernelName, v.nodeKernelVersion, arch, _ = k8sapi.GetNodeInfo()
v.nodeArch = kernelName + "/" + arch
_ = env.Set(clusterUUID, v.id)
_ = env.Set(nodeOs, v.nodeOs)
_ = env.Set(nodeKernelVersion, v.nodeKernelVersion)
_ = env.Set(nodeArch, v.nodeArch)
_ = env.Set(k8sVersion, v.k8sVersion)
_ = env.Set(openEBSversion, v.openebsVersion)
return nil
}
// getVersion is a wrapper over fetchAndSetVersion
func (v *VersionSet) getVersion(override bool) error {
// If ENVs aren't set or the override is true, fetch the required
// values from the K8s APIserver
if _, present := env.Lookup(openEBSversion); !present || override {
if err := v.fetchAndSetVersion(); err != nil {
klog.Error(err.Error())
return err
}
}
// Fetch data from ENV
v.id = env.Get(clusterUUID)
v.nodeArch = env.Get(nodeArch)
v.k8sVersion = env.Get(k8sVersion)
v.nodeOs = env.Get(nodeOs)
v.nodeKernelVersion = env.Get(nodeKernelVersion)
v.openebsVersion = env.Get(openEBSversion)
v.installerType = env.Get(installerType)
return nil
}
// getUUIDbyNS returns the metadata.object.uid of a namespace in Kubernetes
func getUUIDbyNS(namespace string) (string, error) {
ns := k8sapi.Namespace()
NSstruct, err := ns.Get(namespace, metav1.GetOptions{})
if err != nil {
return "", err
}
if NSstruct != nil {
return string(NSstruct.GetObjectMeta().GetUID()), nil
}
return "", nil
}