forked from gardener/gardener
/
extension.go
189 lines (163 loc) · 6.81 KB
/
extension.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
// Copyright (c) 2019 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 botanist
import (
"context"
"fmt"
"time"
corev1alpha1 "github.com/gardener/gardener/pkg/apis/core/v1alpha1"
gardencorev1alpha1 "github.com/gardener/gardener/pkg/apis/core/v1alpha1"
gardencorev1alpha1helper "github.com/gardener/gardener/pkg/apis/core/v1alpha1/helper"
extensionsv1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
"github.com/gardener/gardener/pkg/operation/shoot"
"github.com/gardener/gardener/pkg/utils/flow"
kutil "github.com/gardener/gardener/pkg/utils/kubernetes"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/wait"
"sigs.k8s.io/controller-runtime/pkg/client"
)
// DeployExtensionResources creates the `Extension` extension resource in the shoot namespace in the seed
// cluster. Gardener waits until an external controller did reconcile the cluster successfully.
func (b *Botanist) DeployExtensionResources(ctx context.Context) error {
fns := make([]flow.TaskFn, 0, len(b.Shoot.Extensions))
for _, extension := range b.Shoot.Extensions {
var (
extensionType = extension.Spec.Type
providerConfig = extension.Spec.ProviderConfig
toApply = extensionsv1alpha1.Extension{
ObjectMeta: metav1.ObjectMeta{
Name: extension.Name,
Namespace: extension.Namespace,
},
}
)
fns = append(fns, func(ctx context.Context) error {
return kutil.CreateOrUpdate(ctx, b.K8sSeedClient.Client(), &toApply, func() error {
toApply.Spec.Type = extensionType
toApply.Spec.ProviderConfig = providerConfig
return nil
})
})
}
return flow.Parallel(fns...)(ctx)
}
// WaitUntilExtensionResourcesReady waits until all extension resources report `Succeeded` in their last operation state.
// The state must be reported before the passed context is cancelled or an extension's timeout has been reached.
// As soon as one timeout has been overstepped the function returns an error, further waits on extensions will be aborted.
func (b *Botanist) WaitUntilExtensionResourcesReady(ctx context.Context) error {
fns := make([]flow.TaskFn, 0, len(b.Shoot.Extensions))
for _, extension := range b.Shoot.Extensions {
var (
name = extension.Name
namespace = extension.Namespace
timedContext, cancel = context.WithTimeout(ctx, extension.Timeout)
)
fns = append(fns, func(ctx context.Context) error {
defer cancel()
var lastError *gardencorev1alpha1.LastError
if err := wait.PollUntil(5*time.Second, func() (bool, error) {
req := &extensionsv1alpha1.Extension{}
if err := b.K8sSeedClient.Client().Get(ctx, kutil.Key(namespace, name), req); err != nil {
return false, err
}
if lastErr := req.Status.LastError; lastErr != nil {
b.Logger.Errorf("Extension %s/%s did not get ready yet, lastError is: %s", namespace, name, lastErr.Description)
lastError = lastErr
}
if req.Status.LastOperation != nil &&
req.Status.LastOperation.State == corev1alpha1.LastOperationStateSucceeded &&
req.Status.ObservedGeneration == req.Generation {
return true, nil
}
b.Logger.Infof("Waiting for extension %s/%s to be ready...", namespace, name)
return false, nil
}, timedContext.Done()); err != nil {
message := fmt.Sprintf("Failed waiting for extension %s is ready", name)
if lastError != nil {
return gardencorev1alpha1helper.DetermineError(fmt.Sprintf("%s: %s", message, lastError.Description))
}
return gardencorev1alpha1helper.DetermineError(fmt.Sprintf("%s: %s", message, err.Error()))
}
return nil
})
}
return flow.ParallelExitOnError(fns...)(ctx)
}
// DeleteExtensionResources deletes all extension resources from the Shoot namespace in the Seed.
func (b *Botanist) DeleteExtensionResources(ctx context.Context) error {
extensions := &extensionsv1alpha1.ExtensionList{}
if err := b.K8sSeedClient.Client().List(ctx, extensions, client.InNamespace(b.Shoot.SeedNamespace)); err != nil {
return err
}
fns := make([]flow.TaskFn, 0, len(extensions.Items))
for _, extension := range extensions.Items {
fns = append(fns, func(ctx context.Context) error {
toDelete := extensionsv1alpha1.Extension{
ObjectMeta: metav1.ObjectMeta{
Name: extension.Name,
Namespace: extension.Namespace,
},
}
if err := b.K8sSeedClient.Client().Delete(ctx, &toDelete); err != nil && !apierrors.IsNotFound(err) {
return err
}
return nil
})
}
return flow.Parallel(fns...)(ctx)
}
// WaitUntilExtensionResourcesDeleted waits until all extension resources are gone or the context is cancelled.
func (b *Botanist) WaitUntilExtensionResourcesDeleted(ctx context.Context) error {
var (
lastError *gardencorev1alpha1.LastError
extensions = &extensionsv1alpha1.ExtensionList{}
timedContext, cancel = context.WithTimeout(ctx, shoot.ExtensionDefaultTimeout)
)
defer cancel()
if err := b.K8sSeedClient.Client().List(ctx, extensions, client.InNamespace(b.Shoot.SeedNamespace)); err != nil {
return err
}
fns := make([]flow.TaskFn, 0, len(extensions.Items))
for _, extension := range extensions.Items {
var (
name = extension.Name
namespace = extension.Namespace
status = extension.Status
)
fns = append(fns, func(ctx context.Context) error {
if err := wait.PollUntil(5*time.Second, func() (bool, error) {
if err := b.K8sSeedClient.Client().Get(ctx, kutil.Key(namespace, name), &extensionsv1alpha1.Extension{}); err != nil {
if apierrors.IsNotFound(err) {
return true, nil
}
return false, err
}
if lastErr := status.LastError; lastErr != nil {
b.Logger.Errorf("Extension %s did not get deleted yet, lastError is: %s", name, lastErr.Description)
lastError = lastErr
}
return false, nil
}, ctx.Done()); err != nil {
message := fmt.Sprintf("Failed waiting for extension delete")
if lastError != nil {
return gardencorev1alpha1helper.DetermineError(fmt.Sprintf("%s: %s", message, lastError.Description))
}
return gardencorev1alpha1helper.DetermineError(fmt.Sprintf("%s: %s", message, err.Error()))
}
return nil
})
}
return flow.Parallel(fns...)(timedContext)
}