-
Notifications
You must be signed in to change notification settings - Fork 473
/
controlplane.go
236 lines (209 loc) · 7.33 KB
/
controlplane.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
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
// Copyright 2020 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// 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 controlplane
import (
"context"
"time"
"github.com/go-logr/logr"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1"
v1beta1constants "github.com/gardener/gardener/pkg/apis/core/v1beta1/constants"
extensionsv1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
"github.com/gardener/gardener/pkg/component"
"github.com/gardener/gardener/pkg/controllerutils"
"github.com/gardener/gardener/pkg/extensions"
)
const (
// DefaultInterval is the default interval for retry operations.
DefaultInterval = 5 * time.Second
// DefaultSevereThreshold is the default threshold until an error reported by another component is treated as
// 'severe'.
DefaultSevereThreshold = 30 * time.Second
// DefaultTimeout is the default timeout and defines how long Gardener should wait for a successful reconciliation
// of a ControlPlane resource.
DefaultTimeout = 3 * time.Minute
)
// TimeNow returns the current time. Exposed for testing.
var TimeNow = time.Now
// Interface is an interface for managing ControlPlanes.
type Interface interface {
component.DeployMigrateWaiter
SetInfrastructureProviderStatus(*runtime.RawExtension)
ProviderStatus() *runtime.RawExtension
}
// Values contains the values used to create an ControlPlane resources.
type Values struct {
// Namespace is the Shoot namespace in the seed.
Namespace string
// Name is the name of the ControlPlane resource. Commonly the Shoot's name.
Name string
// Type is the type of the ControlPlane provider.
Type string
// ProviderConfig contains the provider config for the ControlPlane provider.
ProviderConfig *runtime.RawExtension
// Purpose is the purpose of the ControlPlane resource (normal/exposure).
Purpose extensionsv1alpha1.Purpose
// Region is the region of the shoot.
Region string
// InfrastructureProviderStatus is the provider status of the Infrastructure resource which might be relevant for
// the ControlPlane reconciliation.
InfrastructureProviderStatus *runtime.RawExtension
}
// New creates a new instance of Interface.
func New(
log logr.Logger,
client client.Client,
values *Values,
waitInterval time.Duration,
waitSevereThreshold time.Duration,
waitTimeout time.Duration,
) Interface {
name := values.Name
if values.Purpose == extensionsv1alpha1.Exposure {
name += "-exposure"
}
return &controlPlane{
log: log,
client: client,
values: values,
waitInterval: waitInterval,
waitSevereThreshold: waitSevereThreshold,
waitTimeout: waitTimeout,
controlPlane: &extensionsv1alpha1.ControlPlane{
ObjectMeta: metav1.ObjectMeta{
Name: name,
Namespace: values.Namespace,
},
},
}
}
type controlPlane struct {
values *Values
log logr.Logger
client client.Client
waitInterval time.Duration
waitSevereThreshold time.Duration
waitTimeout time.Duration
controlPlane *extensionsv1alpha1.ControlPlane
providerStatus *runtime.RawExtension
}
// Deploy uses the seed client to create or update the ControlPlane resource.
func (c *controlPlane) Deploy(ctx context.Context) error {
_, err := c.deploy(ctx, v1beta1constants.GardenerOperationReconcile)
return err
}
func (c *controlPlane) deploy(ctx context.Context, operation string) (extensionsv1alpha1.Object, error) {
var providerConfig *runtime.RawExtension
if cfg := c.values.ProviderConfig; cfg != nil {
providerConfig = &runtime.RawExtension{Raw: cfg.Raw}
}
_, err := controllerutils.GetAndCreateOrMergePatch(ctx, c.client, c.controlPlane, func() error {
metav1.SetMetaDataAnnotation(&c.controlPlane.ObjectMeta, v1beta1constants.GardenerOperation, operation)
metav1.SetMetaDataAnnotation(&c.controlPlane.ObjectMeta, v1beta1constants.GardenerTimestamp, TimeNow().UTC().Format(time.RFC3339Nano))
c.controlPlane.Spec = extensionsv1alpha1.ControlPlaneSpec{
DefaultSpec: extensionsv1alpha1.DefaultSpec{
Type: c.values.Type,
ProviderConfig: providerConfig,
},
Region: c.values.Region,
Purpose: &c.values.Purpose,
SecretRef: corev1.SecretReference{
Name: v1beta1constants.SecretNameCloudProvider,
Namespace: c.controlPlane.Namespace,
},
InfrastructureProviderStatus: c.values.InfrastructureProviderStatus,
}
return nil
})
return c.controlPlane, err
}
// Restore uses the seed client and the ShootState to create the ControlPlane resources and restore their state.
func (c *controlPlane) Restore(ctx context.Context, shootState *gardencorev1beta1.ShootState) error {
return extensions.RestoreExtensionWithDeployFunction(
ctx,
c.client,
shootState,
extensionsv1alpha1.ControlPlaneResource,
c.deploy,
)
}
// Migrate migrates the ControlPlane resources.
func (c *controlPlane) Migrate(ctx context.Context) error {
return extensions.MigrateExtensionObjects(
ctx,
c.client,
&extensionsv1alpha1.ControlPlaneList{},
c.values.Namespace,
nil,
)
}
// Destroy deletes the ControlPlane resource.
func (c *controlPlane) Destroy(ctx context.Context) error {
return extensions.DeleteExtensionObject(
ctx,
c.client,
c.controlPlane,
)
}
// Wait waits until the ControlPlane resource is ready.
func (c *controlPlane) Wait(ctx context.Context) error {
return extensions.WaitUntilExtensionObjectReady(
ctx,
c.client,
c.log,
c.controlPlane,
extensionsv1alpha1.ControlPlaneResource,
c.waitInterval,
c.waitSevereThreshold,
c.waitTimeout,
func() error {
c.providerStatus = c.controlPlane.Status.ProviderStatus
return nil
},
)
}
// WaitMigrate waits until the ControlPlane resources are migrated successfully.
func (c *controlPlane) WaitMigrate(ctx context.Context) error {
return extensions.WaitUntilExtensionObjectMigrated(
ctx,
c.client,
c.controlPlane,
extensionsv1alpha1.ControlPlaneResource,
c.waitInterval,
c.waitTimeout,
)
}
// WaitCleanup waits until the ControlPlane resource is deleted.
func (c *controlPlane) WaitCleanup(ctx context.Context) error {
return extensions.WaitUntilExtensionObjectDeleted(
ctx,
c.client,
c.log,
c.controlPlane,
extensionsv1alpha1.ControlPlaneResource,
c.waitInterval,
c.waitTimeout,
)
}
// SetInfrastructureProviderStatus sets the infrastructure provider status in the values.
func (c *controlPlane) SetInfrastructureProviderStatus(status *runtime.RawExtension) {
c.values.InfrastructureProviderStatus = status
}
// ProviderStatus returns the generated status of the provider.
func (c *controlPlane) ProviderStatus() *runtime.RawExtension {
return c.providerStatus
}