-
Notifications
You must be signed in to change notification settings - Fork 5.1k
/
resource_tracking.go
180 lines (155 loc) · 5.85 KB
/
resource_tracking.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
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
package argo
import (
"fmt"
"strings"
"github.com/argoproj/gitops-engine/pkg/utils/kube"
"github.com/argoproj/argo-cd/v2/common"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"github.com/argoproj/argo-cd/v2/util/settings"
"github.com/argoproj/argo-cd/v2/pkg/apis/application/v1alpha1"
argokube "github.com/argoproj/argo-cd/v2/util/kube"
)
const (
TrackingMethodAnnotation v1alpha1.TrackingMethod = "annotation"
TrackingMethodLabel v1alpha1.TrackingMethod = "label"
TrackingMethodAnnotationAndLabel v1alpha1.TrackingMethod = "annotation+label"
)
var WrongResourceTrackingFormat = fmt.Errorf("wrong resource tracking format, should be <application-name>:<group>/<kind>:<namespace>/<name>")
var LabelMaxLength = 63
// ResourceTracking defines methods which allow setup and retrieve tracking information to resource
type ResourceTracking interface {
GetAppName(un *unstructured.Unstructured, key string, trackingMethod v1alpha1.TrackingMethod) string
SetAppInstance(un *unstructured.Unstructured, key, val, namespace string, trackingMethod v1alpha1.TrackingMethod) error
BuildAppInstanceValue(value AppInstanceValue) string
ParseAppInstanceValue(value string) (*AppInstanceValue, error)
Normalize(config, live *unstructured.Unstructured, labelKey, trackingMethod string) error
}
//AppInstanceValue store information about resource tracking info
type AppInstanceValue struct {
ApplicationName string
Group string
Kind string
Namespace string
Name string
}
type resourceTracking struct {
}
func NewResourceTracking() ResourceTracking {
return &resourceTracking{}
}
// GetTrackingMethod retrieve tracking method from settings
func GetTrackingMethod(settingsMgr *settings.SettingsManager) v1alpha1.TrackingMethod {
tm, err := settingsMgr.GetTrackingMethod()
if err != nil {
return TrackingMethodLabel
}
return v1alpha1.TrackingMethod(tm)
}
func IsOldTrackingMethod(trackingMethod string) bool {
return trackingMethod == "" || trackingMethod == string(TrackingMethodLabel)
}
// GetAppName retrieve application name base on tracking method
func (rt *resourceTracking) GetAppName(un *unstructured.Unstructured, key string, trackingMethod v1alpha1.TrackingMethod) string {
retrieveAppInstanceValue := func() string {
appInstanceAnnotation := argokube.GetAppInstanceAnnotation(un, common.AnnotationKeyAppInstance)
value, err := rt.ParseAppInstanceValue(appInstanceAnnotation)
if err != nil {
return ""
}
return value.ApplicationName
}
switch trackingMethod {
case TrackingMethodLabel:
return argokube.GetAppInstanceLabel(un, key)
case TrackingMethodAnnotationAndLabel:
return retrieveAppInstanceValue()
case TrackingMethodAnnotation:
return retrieveAppInstanceValue()
default:
return argokube.GetAppInstanceLabel(un, key)
}
}
// SetAppInstance set label/annotation base on tracking method
func (rt *resourceTracking) SetAppInstance(un *unstructured.Unstructured, key, val, namespace string, trackingMethod v1alpha1.TrackingMethod) error {
setAppInstanceAnnotation := func() error {
ns := un.GetNamespace()
if ns == "" {
ns = namespace
}
gvk := un.GetObjectKind().GroupVersionKind()
appInstanceValue := AppInstanceValue{
ApplicationName: val,
Group: gvk.Group,
Kind: gvk.Kind,
Namespace: ns,
Name: un.GetName(),
}
return argokube.SetAppInstanceAnnotation(un, common.AnnotationKeyAppInstance, rt.BuildAppInstanceValue(appInstanceValue))
}
switch trackingMethod {
case TrackingMethodLabel:
return argokube.SetAppInstanceLabel(un, key, val)
case TrackingMethodAnnotation:
return setAppInstanceAnnotation()
case TrackingMethodAnnotationAndLabel:
err := setAppInstanceAnnotation()
if err != nil {
return err
}
if len(val) > LabelMaxLength {
val = val[:LabelMaxLength]
}
return argokube.SetAppInstanceLabel(un, key, val)
default:
return argokube.SetAppInstanceLabel(un, key, val)
}
}
//BuildAppInstanceValue build resource tracking id in format <application-name>;<group>/<kind>/<namespace>/<name>
func (rt *resourceTracking) BuildAppInstanceValue(value AppInstanceValue) string {
return fmt.Sprintf("%s:%s/%s:%s/%s", value.ApplicationName, value.Group, value.Kind, value.Namespace, value.Name)
}
//ParseAppInstanceValue parse resource tracking id from format <application-name>:<group>/<kind>:<namespace>/<name> to struct
func (rt *resourceTracking) ParseAppInstanceValue(value string) (*AppInstanceValue, error) {
var appInstanceValue AppInstanceValue
parts := strings.Split(value, ":")
appInstanceValue.ApplicationName = parts[0]
if len(parts) != 3 {
return nil, WrongResourceTrackingFormat
}
groupParts := strings.Split(parts[1], "/")
if len(groupParts) != 2 {
return nil, WrongResourceTrackingFormat
}
nsParts := strings.Split(parts[2], "/")
if len(nsParts) != 2 {
return nil, WrongResourceTrackingFormat
}
appInstanceValue.Group = groupParts[0]
appInstanceValue.Kind = groupParts[1]
appInstanceValue.Namespace = nsParts[0]
appInstanceValue.Name = nsParts[1]
return &appInstanceValue, nil
}
// Normalize updates live resource and removes diff caused but missing annotation or extra tracking label.
// The normalization is required to ensure smooth transition to new tracking method.
func (rt *resourceTracking) Normalize(config, live *unstructured.Unstructured, labelKey, trackingMethod string) error {
if IsOldTrackingMethod(trackingMethod) {
return nil
}
if live == nil || config == nil {
return nil
}
label := kube.GetAppInstanceLabel(live, labelKey)
if label == "" {
return nil
}
annotation := argokube.GetAppInstanceAnnotation(config, common.AnnotationKeyAppInstance)
err := argokube.SetAppInstanceAnnotation(live, common.AnnotationKeyAppInstance, annotation)
if err != nil {
return err
}
if argokube.GetAppInstanceLabel(config, labelKey) == "" {
argokube.RemoveLabel(live, labelKey)
}
return nil
}