-
Notifications
You must be signed in to change notification settings - Fork 18
/
kafkatopic_controller.go
220 lines (182 loc) · 6.99 KB
/
kafkatopic_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
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
// Copyright (c) 2022 Aiven, Helsinki, Finland. https://aiven.io/
package controllers
import (
"context"
"fmt"
"strconv"
"github.com/aiven/aiven-go-client"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"github.com/aiven/aiven-operator/api/v1alpha1"
)
// KafkaTopicReconciler reconciles a KafkaTopic object
type KafkaTopicReconciler struct {
Controller
}
type KafkaTopicHandler struct{}
// +kubebuilder:rbac:groups=aiven.io,resources=kafkatopics,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups=aiven.io,resources=kafkatopics/status,verbs=get;update;patch
func (r *KafkaTopicReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
return r.reconcileInstance(ctx, req, KafkaTopicHandler{}, &v1alpha1.KafkaTopic{})
}
func (r *KafkaTopicReconciler) SetupWithManager(mgr ctrl.Manager) error {
return ctrl.NewControllerManagedBy(mgr).
For(&v1alpha1.KafkaTopic{}).
Complete(r)
}
func (h KafkaTopicHandler) createOrUpdate(avn *aiven.Client, i client.Object, refs []client.Object) error {
topic, err := h.convert(i)
if err != nil {
return err
}
var tags []aiven.KafkaTopicTag
for _, t := range topic.Spec.Tags {
tags = append(tags, aiven.KafkaTopicTag{
Key: t.Key,
Value: t.Value,
})
}
exists, err := h.exists(avn, topic)
if err != nil {
return err
}
var reason string
if !exists {
err = avn.KafkaTopics.Create(topic.Spec.Project, topic.Spec.ServiceName, aiven.CreateKafkaTopicRequest{
Partitions: &topic.Spec.Partitions,
Replication: &topic.Spec.Replication,
TopicName: topic.Name,
Tags: tags,
Config: convertKafkaTopicConfig(topic),
})
if err != nil && !aiven.IsAlreadyExists(err) {
return err
}
reason = "Created"
} else {
err = avn.KafkaTopics.Update(topic.Spec.Project, topic.Spec.ServiceName, topic.Name,
aiven.UpdateKafkaTopicRequest{
Partitions: &topic.Spec.Partitions,
Replication: &topic.Spec.Replication,
Tags: tags,
Config: convertKafkaTopicConfig(topic),
})
if err != nil {
return fmt.Errorf("cannot update Kafka Topic: %w", err)
}
reason = "Updated"
}
meta.SetStatusCondition(&topic.Status.Conditions,
getInitializedCondition(reason,
"Instance was created or update on Aiven side"))
meta.SetStatusCondition(&topic.Status.Conditions,
getRunningCondition(metav1.ConditionUnknown, reason,
"Instance was created or update on Aiven side, status remains unknown"))
metav1.SetMetaDataAnnotation(&topic.ObjectMeta,
processedGenerationAnnotation, strconv.FormatInt(topic.GetGeneration(), formatIntBaseDecimal))
return nil
}
func (h KafkaTopicHandler) delete(avn *aiven.Client, i client.Object) (bool, error) {
topic, err := h.convert(i)
if err != nil {
return false, err
}
// Delete project on Aiven side
err = avn.KafkaTopics.Delete(topic.Spec.Project, topic.Spec.ServiceName, topic.Name)
if err != nil && !aiven.IsNotFound(err) {
return false, err
}
return true, nil
}
func (h KafkaTopicHandler) exists(avn *aiven.Client, topic *v1alpha1.KafkaTopic) (bool, error) {
t, err := avn.KafkaTopics.Get(topic.Spec.Project, topic.Spec.ServiceName, topic.Name)
if err != nil && !aiven.IsNotFound(err) {
if aivenError, ok := err.(aiven.Error); ok {
// Getting topic info can sometimes temporarily fail with 501 and 502. Don't
// treat that as fatal error but keep on retrying instead.
if aivenError.Status == 501 || aivenError.Status == 502 {
return true, nil
}
}
return false, err
}
return t != nil, nil
}
func (h KafkaTopicHandler) get(avn *aiven.Client, i client.Object) (*corev1.Secret, error) {
topic, err := h.convert(i)
if err != nil {
return nil, err
}
state, err := h.getState(avn, topic)
if err != nil {
return nil, err
}
topic.Status.State = state
if state == "ACTIVE" {
meta.SetStatusCondition(&topic.Status.Conditions,
getRunningCondition(metav1.ConditionTrue, "CheckRunning",
"Instance is running on Aiven side"))
metav1.SetMetaDataAnnotation(&topic.ObjectMeta, instanceIsRunningAnnotation, "true")
}
return nil, err
}
func (h KafkaTopicHandler) checkPreconditions(avn *aiven.Client, i client.Object) (bool, error) {
topic, err := h.convert(i)
if err != nil {
return false, err
}
meta.SetStatusCondition(&topic.Status.Conditions,
getInitializedCondition("Preconditions", "Checking preconditions"))
return checkServiceIsRunning(avn, topic.Spec.Project, topic.Spec.ServiceName)
}
func (h KafkaTopicHandler) getState(avn *aiven.Client, topic *v1alpha1.KafkaTopic) (string, error) {
t, err := avn.KafkaTopics.Get(topic.Spec.Project, topic.Spec.ServiceName, topic.Name)
if err != nil {
if aivenError, ok := err.(aiven.Error); ok {
// Getting topic info can sometimes temporarily fail with 501 and 502. Don't
// treat that as fatal error but keep on retrying instead.
if aivenError.Status == 501 || aivenError.Status == 502 {
return "", nil
}
}
return "", err
}
return t.State, nil
}
func (h KafkaTopicHandler) convert(i client.Object) (*v1alpha1.KafkaTopic, error) {
topic, ok := i.(*v1alpha1.KafkaTopic)
if !ok {
return nil, fmt.Errorf("cannot convert object to KafkaTopic")
}
return topic, nil
}
func convertKafkaTopicConfig(topic *v1alpha1.KafkaTopic) aiven.KafkaTopicConfig {
return aiven.KafkaTopicConfig{
CleanupPolicy: topic.Spec.Config.CleanupPolicy,
CompressionType: topic.Spec.Config.CompressionType,
DeleteRetentionMs: topic.Spec.Config.DeleteRetentionMs,
FileDeleteDelayMs: topic.Spec.Config.FileDeleteDelayMs,
FlushMessages: topic.Spec.Config.FlushMessages,
FlushMs: topic.Spec.Config.FlushMs,
IndexIntervalBytes: topic.Spec.Config.IndexIntervalBytes,
MaxCompactionLagMs: topic.Spec.Config.MaxCompactionLagMs,
MaxMessageBytes: topic.Spec.Config.MaxMessageBytes,
MessageDownconversionEnable: topic.Spec.Config.MessageDownconversionEnable,
MessageFormatVersion: topic.Spec.Config.MessageFormatVersion,
MessageTimestampDifferenceMaxMs: topic.Spec.Config.MessageTimestampDifferenceMaxMs,
MessageTimestampType: topic.Spec.Config.MessageTimestampType,
MinCompactionLagMs: topic.Spec.Config.MinCompactionLagMs,
MinInsyncReplicas: topic.Spec.Config.MinInsyncReplicas,
Preallocate: topic.Spec.Config.Preallocate,
RetentionBytes: topic.Spec.Config.RetentionBytes,
RetentionMs: topic.Spec.Config.RetentionMs,
SegmentBytes: topic.Spec.Config.SegmentBytes,
SegmentIndexBytes: topic.Spec.Config.SegmentIndexBytes,
SegmentJitterMs: topic.Spec.Config.SegmentJitterMs,
SegmentMs: topic.Spec.Config.SegmentMs,
UncleanLeaderElectionEnable: topic.Spec.Config.UncleanLeaderElectionEnable,
}
}