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
|
package v1
import metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
// +genclient
// +genclient:nonNamespaced
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// Feature holds cluster-wide information about feature gates. The canonical name is `cluster`
type FeatureGate struct {
metav1.TypeMeta `json:",inline"`
// Standard object's metadata.
metav1.ObjectMeta `json:"metadata,omitempty"`
// spec holds user settable values for configuration
// +kubebuilder:validation:Required
// +required
Spec FeatureGateSpec `json:"spec"`
// status holds observed values from the cluster. They may not be overridden.
// +optional
Status FeatureGateStatus `json:"status"`
}
type FeatureSet string
var (
// Default feature set that allows upgrades.
Default FeatureSet = ""
// TechPreviewNoUpgrade turns on tech preview features that are not part of the normal supported platform. Turning
// this feature set on CANNOT BE UNDONE and PREVENTS UPGRADES.
TechPreviewNoUpgrade FeatureSet = "TechPreviewNoUpgrade"
// CustomNoUpgrade allows the enabling or disabling of any feature. Turning this feature set on IS NOT SUPPORTED, CANNOT BE UNDONE, and PREVENTS UPGRADES.
// Because of its nature, this setting cannot be validated. If you have any typos or accidentally apply invalid combinations
// your cluster may fail in an unrecoverable way.
CustomNoUpgrade FeatureSet = "CustomNoUpgrade"
)
type FeatureGateSpec struct {
FeatureGateSelection `json:",inline"`
}
// +union
type FeatureGateSelection struct {
// featureSet changes the list of features in the cluster. The default is empty. Be very careful adjusting this setting.
// Turning on or off features may cause irreversible changes in your cluster which cannot be undone.
// +unionDiscriminator
// +optional
FeatureSet FeatureSet `json:"featureSet,omitempty"`
// customNoUpgrade allows the enabling or disabling of any feature. Turning this feature set on IS NOT SUPPORTED, CANNOT BE UNDONE, and PREVENTS UPGRADES.
// Because of its nature, this setting cannot be validated. If you have any typos or accidentally apply invalid combinations
// your cluster may fail in an unrecoverable way. featureSet must equal "CustomNoUpgrade" must be set to use this field.
// +optional
// +nullable
CustomNoUpgrade *CustomFeatureGates `json:"customNoUpgrade,omitempty"`
}
type CustomFeatureGates struct {
// enabled is a list of all feature gates that you want to force on
// +optional
Enabled []string `json:"enabled,omitempty"`
// disabled is a list of all feature gates that you want to force off
// +optional
Disabled []string `json:"disabled,omitempty"`
}
type FeatureGateStatus struct {
}
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
type FeatureGateList struct {
metav1.TypeMeta `json:",inline"`
// Standard object's metadata.
metav1.ListMeta `json:"metadata"`
Items []FeatureGate `json:"items"`
}
type FeatureGateEnabledDisabled struct {
Enabled []string
Disabled []string
}
// FeatureSets Contains a map of Feature names to Enabled/Disabled Feature.
//
// NOTE: The caller needs to make sure to check for the existence of the value
// using golang's existence field. A possible scenario is an upgrade where new
// FeatureSets are added and a controller has not been upgraded with a newer
// version of this file. In this upgrade scenario the map could return nil.
//
// example:
// if featureSet, ok := FeatureSets["SomeNewFeature"]; ok { }
//
// If you put an item in either of these lists, put your area and name on it so we can find owners.
var FeatureSets = map[FeatureSet]*FeatureGateEnabledDisabled{
Default: {
Enabled: []string{
"ExperimentalCriticalPodAnnotation", // sig-pod, sjenning
"RotateKubeletServerCertificate", // sig-pod, sjenning
"SupportPodPidsLimit", // sig-pod, sjenning
},
Disabled: []string{
"LocalStorageCapacityIsolation", // sig-pod, sjenning
},
},
TechPreviewNoUpgrade: {
Enabled: []string{
"ExperimentalCriticalPodAnnotation", // sig-pod, sjenning
"RotateKubeletServerCertificate", // sig-pod, sjenning
"SupportPodPidsLimit", // sig-pod, sjenning
},
Disabled: []string{
"LocalStorageCapacityIsolation", // sig-pod, sjenning
},
},
}
|
