/
controller.go
163 lines (131 loc) · 4.86 KB
/
controller.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
/*
Copyright 2022 The Kubermatic Kubernetes Platform contributors.
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 usersshkeyprojectownershipcontroller
import (
"context"
"errors"
"fmt"
"go.uber.org/zap"
kubermaticv1 "k8c.io/kubermatic/v2/pkg/apis/kubermatic/v1"
kuberneteshelper "k8c.io/kubermatic/v2/pkg/kubernetes"
corev1 "k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
"k8s.io/client-go/tools/record"
ctrlruntimeclient "sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/controller"
"sigs.k8s.io/controller-runtime/pkg/event"
"sigs.k8s.io/controller-runtime/pkg/handler"
"sigs.k8s.io/controller-runtime/pkg/manager"
"sigs.k8s.io/controller-runtime/pkg/predicate"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
"sigs.k8s.io/controller-runtime/pkg/source"
)
const ControllerName = "kkp-usersshkey-project-ownership-controller"
// reconcileSyncProjectBinding reconciles UserSSHKey objects and ensures that
// they are owned by their parent project.
type reconcileSyncProjectBinding struct {
ctrlruntimeclient.Client
recorder record.EventRecorder
log *zap.SugaredLogger
}
func Add(mgr manager.Manager, log *zap.SugaredLogger) error {
r := &reconcileSyncProjectBinding{
Client: mgr.GetClient(),
recorder: mgr.GetEventRecorderFor(ControllerName),
log: log,
}
// Create a new controller
c, err := controller.New(ControllerName, mgr, controller.Options{Reconciler: r})
if err != nil {
return err
}
// Watch for changes to UserSSHKey
if err := c.Watch(&source.Kind{Type: &kubermaticv1.UserSSHKey{}}, &handler.EnqueueRequestForObject{}); err != nil {
return err
}
// Notice when projects appear, then enqueue all keys that are in the project
enqueueRelatedKeys := handler.EnqueueRequestsFromMapFunc(func(a ctrlruntimeclient.Object) []reconcile.Request {
keyList := &kubermaticv1.UserSSHKeyList{}
if err := mgr.GetClient().List(context.Background(), keyList); err != nil {
utilruntime.HandleError(fmt.Errorf("failed to list UserSSHKeys: %w", err))
return []reconcile.Request{}
}
requests := []reconcile.Request{}
for _, key := range keyList.Items {
if key.Spec.Project == a.GetName() {
requests = append(requests, reconcile.Request{
NamespacedName: ctrlruntimeclient.ObjectKeyFromObject(&key),
})
}
}
return requests
})
// Only react to new projects
onlyNewProjects := predicate.Funcs{
CreateFunc: func(ce event.CreateEvent) bool {
return true
},
}
if err := c.Watch(&source.Kind{Type: &kubermaticv1.Project{}}, enqueueRelatedKeys, onlyNewProjects); err != nil {
return err
}
return nil
}
func (r *reconcileSyncProjectBinding) Reconcile(ctx context.Context, request reconcile.Request) (reconcile.Result, error) {
sshKey := &kubermaticv1.UserSSHKey{}
if err := r.Get(ctx, request.NamespacedName, sshKey); err != nil {
if apierrors.IsNotFound(err) {
return reconcile.Result{}, nil
}
return reconcile.Result{}, err
}
log := r.log.With("usersshkey", sshKey.Name)
log.Debug("Reconciling")
err := r.reconcile(ctx, log, sshKey)
if err != nil {
r.recorder.Event(sshKey, corev1.EventTypeWarning, "ReconcilingError", err.Error())
log.Errorw("Reconciling failed", zap.Error(err))
}
return reconcile.Result{}, err
}
func (r *reconcileSyncProjectBinding) reconcile(ctx context.Context, log *zap.SugaredLogger, sshKey *kubermaticv1.UserSSHKey) error {
if sshKey.DeletionTimestamp != nil {
return nil
}
if sshKey.Spec.Project == "" {
return errors.New("SSH key has no project name specified")
}
project := &kubermaticv1.Project{}
err := r.Get(ctx, ctrlruntimeclient.ObjectKey{Name: sshKey.Spec.Project}, project)
if err != nil {
if apierrors.IsNotFound(err) {
log.Debugw("Project does not exist", "project", sshKey.Spec.Project)
return nil
}
return fmt.Errorf("failed to get project: %w", err)
}
oldKey := sshKey.DeepCopy()
kuberneteshelper.EnsureUniqueOwnerReference(sshKey, metav1.OwnerReference{
APIVersion: kubermaticv1.SchemeGroupVersion.String(),
Kind: kubermaticv1.ProjectKindName,
UID: project.UID,
Name: project.Name,
})
kuberneteshelper.SortOwnerReferences(sshKey.OwnerReferences)
if err := r.Patch(ctx, sshKey, ctrlruntimeclient.MergeFrom(oldKey)); err != nil {
return fmt.Errorf("failed to ensure owner reference: %w", err)
}
return nil
}