/
config_factory.go
75 lines (59 loc) · 1.75 KB
/
config_factory.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
package core
import (
"fmt"
"k8s.io/client-go/rest"
"k8s.io/client-go/tools/clientcmd"
)
type ConfigFactory interface {
ConfigurePathResolver(func() (string, error))
ConfigureContextResolver(func() (string, error))
RESTConfig() (*rest.Config, error)
DefaultNamespace() (string, error)
}
type ConfigFactoryImpl struct {
pathResolverFunc func() (string, error)
contextResolverFunc func() (string, error)
}
var _ ConfigFactory = &ConfigFactoryImpl{}
func NewConfigFactoryImpl() *ConfigFactoryImpl {
return &ConfigFactoryImpl{}
}
func (f *ConfigFactoryImpl) ConfigurePathResolver(resolverFunc func() (string, error)) {
f.pathResolverFunc = resolverFunc
}
func (f *ConfigFactoryImpl) ConfigureContextResolver(resolverFunc func() (string, error)) {
f.contextResolverFunc = resolverFunc
}
func (f *ConfigFactoryImpl) RESTConfig() (*rest.Config, error) {
config, err := f.clientConfig()
if err != nil {
return nil, err
}
restConfig, err := config.ClientConfig()
if err != nil {
return nil, fmt.Errorf("Building Kubernetes config: %s", err)
}
return restConfig, nil
}
func (f *ConfigFactoryImpl) DefaultNamespace() (string, error) {
config, err := f.clientConfig()
if err != nil {
return "", err
}
name, _, err := config.Namespace()
return name, err
}
func (f *ConfigFactoryImpl) clientConfig() (clientcmd.ClientConfig, error) {
path, err := f.pathResolverFunc()
if err != nil {
return nil, fmt.Errorf("Resolving config path: %s", err)
}
context, err := f.contextResolverFunc()
if err != nil {
return nil, fmt.Errorf("Resolving config context: %s", err)
}
return clientcmd.NewNonInteractiveDeferredLoadingClientConfig(
&clientcmd.ClientConfigLoadingRules{ExplicitPath: path},
&clientcmd.ConfigOverrides{CurrentContext: context},
), nil
}