-
Notifications
You must be signed in to change notification settings - Fork 250
/
callbacks.go
216 lines (176 loc) · 7.47 KB
/
callbacks.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
/*
Copyright 2018 The CDI Authors.
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 controller
import (
"context"
"fmt"
"reflect"
"github.com/go-logr/logr"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
extv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/client-go/tools/record"
"sigs.k8s.io/controller-runtime/pkg/client"
cdiv1 "kubevirt.io/containerized-data-importer/pkg/apis/core/v1beta1"
"kubevirt.io/containerized-data-importer/pkg/common"
)
const (
// ReconcileStatePreCreate is the state before a resource is created
ReconcileStatePreCreate ReconcileState = "PRE_CREATE"
// ReconcileStatePostCreate is the state sfter a resource is created
ReconcileStatePostCreate ReconcileState = "POST_CREATE"
// ReconcileStatePostRead is the state sfter a resource is read
ReconcileStatePostRead ReconcileState = "POST_READ"
// ReconcileStatePreUpdate is the state before a resource is updated
ReconcileStatePreUpdate ReconcileState = "PRE_UPDATE"
// ReconcileStatePostUpdate is the state after a resource is updated
ReconcileStatePostUpdate ReconcileState = "POST_UPDATE"
// ReconcileStatePreDelete is the state before a resource is explicitly deleted (probably during upgrade)
// don't count on this always being called for your resource
// ideally we just let garbage collection do it's thing
ReconcileStatePreDelete ReconcileState = "PRE_DELETE"
// ReconcileStatePostDelete is the state after a resource is explicitly deleted (probably during upgrade)
// don't count on this always being called for your resource
// ideally we just let garbage collection do it's thing
ReconcileStatePostDelete ReconcileState = "POST_DELETE"
// ReconcileStateCDIDelete is called during CDI finalizer
ReconcileStateCDIDelete ReconcileState = "CDI_DELETE"
)
// ReconcileState is the current state of the reconcile for a particuar resource
type ReconcileState string
// ReconcileCallbackArgs contains the data of a ReconcileCallback
type ReconcileCallbackArgs struct {
Logger logr.Logger
Client client.Client
Scheme *runtime.Scheme
Recorder record.EventRecorder
Namespace string
Resource *cdiv1.CDI
State ReconcileState
DesiredObject runtime.Object
CurrentObject runtime.Object
}
// ReconcileCallback is the callback function
type ReconcileCallback func(args *ReconcileCallbackArgs) error
func addReconcileCallbacks(r *ReconcileCDI) {
r.addCallback(&appsv1.Deployment{}, reconcileDeleteControllerDeployment)
r.addCallback(&corev1.ServiceAccount{}, reconcileServiceAccountRead)
r.addCallback(&corev1.ServiceAccount{}, reconcileServiceAccounts)
r.addCallback(&corev1.ServiceAccount{}, reconcileCreateSCC)
r.addCallback(&appsv1.Deployment{}, reconcileCreateRoute)
r.addCallback(&appsv1.Deployment{}, reconcileDeleteSecrets)
r.addCallback(&extv1.CustomResourceDefinition{}, reconcileInitializeCRD)
}
func isControllerDeployment(d *appsv1.Deployment) bool {
return d.Name == "cdi-deployment"
}
func reconcileDeleteControllerDeployment(args *ReconcileCallbackArgs) error {
switch args.State {
case ReconcileStatePostDelete, ReconcileStateCDIDelete:
default:
return nil
}
var deployment *appsv1.Deployment
if args.DesiredObject != nil {
deployment = args.DesiredObject.(*appsv1.Deployment)
} else if args.CurrentObject != nil {
deployment = args.CurrentObject.(*appsv1.Deployment)
} else {
args.Logger.Info("Received callback with no desired/current object")
return nil
}
if !isControllerDeployment(deployment) {
return nil
}
args.Logger.Info("Deleting CDI deployment and all import/upload/clone pods/services")
err := args.Client.Delete(context.TODO(), deployment, &client.DeleteOptions{
PropagationPolicy: &[]metav1.DeletionPropagation{metav1.DeletePropagationForeground}[0],
})
if err != nil && !errors.IsNotFound(err) {
args.Logger.Error(err, "Error deleting cdi controller deployment")
args.Recorder.Event(args.Resource, corev1.EventTypeWarning, deleteResourceFailed, fmt.Sprintf("Failed to delete deployment %s, %v", deployment.Name, err))
return err
}
args.Recorder.Event(args.Resource, corev1.EventTypeNormal, deleteResourceSuccess, fmt.Sprintf("Deleted deployment %s successfully", deployment.Name))
if err = deleteWorkerResources(args.Logger, args.Client); err != nil {
args.Logger.Error(err, "Error deleting worker resources")
args.Recorder.Event(args.Resource, corev1.EventTypeWarning, deleteResourceFailed, fmt.Sprintf("Failed to deleted worker resources %v", err))
return err
}
args.Recorder.Event(args.Resource, corev1.EventTypeNormal, deleteResourceSuccess, "Deleted worker resources successfully")
return nil
}
func reconcileCreateRoute(args *ReconcileCallbackArgs) error {
if args.State != ReconcileStatePostRead {
return nil
}
deployment := args.CurrentObject.(*appsv1.Deployment)
if !isControllerDeployment(deployment) || !checkDeploymentReady(deployment) {
return nil
}
if err := ensureUploadProxyRouteExists(args.Logger, args.Client, args.Scheme, deployment); err != nil {
args.Recorder.Event(args.Resource, corev1.EventTypeWarning, createResourceFailed, fmt.Sprintf("Failed to ensure upload proxy route exists, %v", err))
return err
}
args.Recorder.Event(args.Resource, corev1.EventTypeNormal, createResourceSuccess, "Successfully ensured upload proxy route exists")
return nil
}
func reconcileCreateSCC(args *ReconcileCallbackArgs) error {
switch args.State {
case ReconcileStatePreCreate, ReconcileStatePostRead:
default:
return nil
}
sa := args.DesiredObject.(*corev1.ServiceAccount)
if sa.Name != common.ControllerServiceAccountName {
return nil
}
if err := ensureSCCExists(args.Logger, args.Client, args.Namespace, common.ControllerServiceAccountName); err != nil {
args.Recorder.Event(args.Resource, corev1.EventTypeWarning, createResourceFailed, fmt.Sprintf("Failed to ensure SecurityContextConstraint exists, %v", err))
return err
}
args.Recorder.Event(args.Resource, corev1.EventTypeNormal, createResourceSuccess, "Successfully ensured SecurityContextConstraint exists")
return nil
}
func deleteWorkerResources(l logr.Logger, c client.Client) error {
listTypes := []runtime.Object{&corev1.PodList{}, &corev1.ServiceList{}}
for _, lt := range listTypes {
ls, err := labels.Parse(fmt.Sprintf("cdi.kubevirt.io in (%s, %s, %s)",
common.ImporterPodName, common.UploadServerCDILabel, common.ClonerSourcePodName))
if err != nil {
return err
}
lo := &client.ListOptions{
LabelSelector: ls,
}
if err := c.List(context.TODO(), lt, lo); err != nil {
l.Error(err, "Error listing resources")
return err
}
sv := reflect.ValueOf(lt).Elem()
iv := sv.FieldByName("Items")
for i := 0; i < iv.Len(); i++ {
obj := iv.Index(i).Addr().Interface().(runtime.Object)
l.Info("Deleting", "type", reflect.TypeOf(obj), "obj", obj)
if err := c.Delete(context.TODO(), obj); err != nil {
l.Error(err, "Error deleting a resource")
return err
}
}
}
return nil
}