/
resources.go
201 lines (175 loc) · 4.71 KB
/
resources.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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
package resources
import (
"encoding/json"
_ "fmt"
"strings"
"reflect"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"github.com/errordeveloper/kubegen/pkg/util"
)
type Convertable interface {
ToObject(*Group) (runtime.Object, error)
}
func exclusiveNonNil(args ...interface{}) *int {
count := 0
index := 0
for k, v := range args {
if !reflect.ValueOf(v).IsNil() {
count = count + 1
index = k
}
}
if count == 0 || count > 1 {
return nil
}
return &index
}
func (i *Metadata) Convert(name string, localGroup *Group) metav1.ObjectMeta {
meta := metav1.ObjectMeta{
Name: name,
Labels: i.Labels,
Annotations: i.Annotations,
Namespace: i.Namespace,
}
if localGroup != nil {
if meta.Namespace == "" && localGroup.Namespace != "" {
meta.Namespace = localGroup.Namespace
}
}
if len(meta.Labels) == 0 {
meta.Labels = map[string]string{"name": name}
}
return meta
}
func (i Anything) ToObject(localGroup *Group) (runtime.Object, error) {
jsonData, err := json.Marshal(i.Object)
if err != nil {
return runtime.Object(nil), err
}
return util.Decode(jsonData)
}
func (i *Group) EncodeListToYAML() ([]byte, error) {
list, err := i.MakeList()
if err != nil {
return nil, err
}
if len(list.Items) == 0 {
return nil, nil
}
return util.EncodeList(list, "application/yaml", false)
}
func (i *Group) EncodeListToJSON() ([]byte, error) {
list, err := i.MakeList()
if err != nil {
return nil, err
}
if len(list.Items) == 0 {
return nil, nil
}
return util.EncodeList(list, "application/json", false)
}
func (i *Group) EncodeListToPrettyJSON() ([]byte, error) {
list, err := i.MakeList()
if err != nil {
return nil, err
}
if len(list.Items) == 0 {
return nil, nil
}
return util.EncodeList(list, "application/json", true)
}
func listAppendFlattened(components *metav1.List, component runtime.RawExtension) error {
if component.Object != nil {
if strings.HasSuffix(component.Object.GetObjectKind().GroupVersionKind().Kind, "List") {
// must use corev1, as it panics on obj.(*metav1.List) with
// an amusing error message saying that *v1.List is not *v1.List
list := component.Object.(*corev1.List)
for _, item := range (*list).Items {
// we attempt to recurse here, but most likely
// we will have to try decoding component.Raw
if err := listAppendFlattened(components, item); err != nil {
return err
}
}
return nil
}
components.Items = append(components.Items, component)
return nil
}
obj, err := util.Decode(component.Raw)
if err != nil {
return err
}
return listAppendFlattened(components, runtime.RawExtension{Object: obj})
}
// this version is a little simpler, but doesn't handle very raw nested lists
// keep it here, in case full recusion leads to problems due to decoding or whatnot
/*
func listAppendFlattenedSemiRecursive(components *metav1.List, component runtime.RawExtension) {
if component.Object != nil {
if strings.HasSuffix(component.Object.GetObjectKind().GroupVersionKind().Kind, "List") {
// must use corev1, as it panics on obj.(*metav1.List) with
// an amusing error message saying that *v1.List is not *v1.List
list := component.Object.(*corev1.List)
for _, item := range (*list).Items {
listAppendFlattenedSemiRecursive(components, item)
}
return
}
}
components.Items = append(components.Items, component)
}
*/
func (i *Group) appendToList(components *metav1.List, component Convertable) error {
obj, err := component.ToObject(i)
if err != nil {
return err
}
return listAppendFlattened(components, runtime.RawExtension{Object: obj})
}
func (i *Group) MakeList() (*metav1.List, error) {
components := &metav1.List{
TypeMeta: metav1.TypeMeta{
Kind: "List",
APIVersion: "v1",
},
}
for _, component := range i.Deployments {
if err := i.appendToList(components, component); err != nil {
return nil, err
}
}
for _, component := range i.ReplicaSets {
if err := i.appendToList(components, component); err != nil {
return nil, err
}
}
for _, component := range i.DaemonSets {
if err := i.appendToList(components, component); err != nil {
return nil, err
}
}
for _, component := range i.StatefulSets {
if err := i.appendToList(components, component); err != nil {
return nil, err
}
}
for _, component := range i.ConfigMaps {
if err := i.appendToList(components, component); err != nil {
return nil, err
}
}
for _, component := range i.Services {
if err := i.appendToList(components, component); err != nil {
return nil, err
}
}
for _, component := range i.Anything {
if err := i.appendToList(components, component); err != nil {
return nil, err
}
}
return components, nil
}