-
Notifications
You must be signed in to change notification settings - Fork 375
/
service.go
314 lines (273 loc) · 9.19 KB
/
service.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
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
// Copyright (c) 2021 Terminus, Inc.
//
// This program is free software: you can use, redistribute, and/or modify
// it under the terms of the GNU Affero General Public License, version 3
// or later ("AGPL"), as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package k8s
import (
"fmt"
"reflect"
"strconv"
"strings"
"github.com/mohae/deepcopy"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
apiv1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/intstr"
"github.com/erda-project/erda/apistructs"
"github.com/erda-project/erda/modules/scheduler/executor/plugins/k8s/k8serror"
"github.com/erda-project/erda/pkg/istioctl"
"github.com/erda-project/erda/pkg/strutil"
)
// CreateService create k8s service
func (k *Kubernetes) CreateService(service *apistructs.Service, selectors map[string]string) error {
svc := newService(service, selectors)
return k.service.Create(svc)
}
// PutService update k8s service
func (k *Kubernetes) PutService(svc *apiv1.Service) error {
return k.service.Put(svc)
}
// GetService get k8s service
func (k *Kubernetes) GetService(namespace, name string) (*apiv1.Service, error) {
return k.service.Get(namespace, name)
}
// DeleteService delete k8s service
func (k *Kubernetes) DeleteService(namespace, name string) error {
return k.service.Delete(namespace, name)
}
func (k *Kubernetes) ListService(namespace string, selectors map[string]string) (apiv1.ServiceList, error) {
return k.service.List(namespace, selectors)
}
// Port changes in the service description will cause changes in services and ingress
func (k *Kubernetes) updateService(service *apistructs.Service, selectors map[string]string) error {
// Service.Ports is empty, indicating that no service is expected
if len(service.Ports) == 0 {
// There is a service before the update, if there is no service, delete the servicece
if err := k.DeleteService(service.Namespace, service.Name); err != nil {
return err
}
return nil
}
svc, getErr := k.GetService(service.Namespace, service.Name)
if getErr != nil && getErr != k8serror.ErrNotFound {
return errors.Errorf("failed to get service, name: %s, (%v)", service.Name, getErr)
}
// If not found, create a new k8s service
if getErr == k8serror.ErrNotFound {
if err := k.CreateService(service, selectors); err != nil {
return err
}
} else {
if err := k.UpdateK8sService(svc, service, selectors); err != nil {
return err
}
}
return nil
}
func newService(service *apistructs.Service, selectors map[string]string) *apiv1.Service {
if len(service.Ports) == 0 {
return nil
}
k8sService := &apiv1.Service{
TypeMeta: metav1.TypeMeta{
APIVersion: "v1",
Kind: "Service",
},
ObjectMeta: metav1.ObjectMeta{
Name: service.Name,
Namespace: service.Namespace,
Labels: make(map[string]string),
},
Spec: apiv1.ServiceSpec{
// TODO: type?
//Type: ServiceTypeLoadBalancer,
Selector: map[string]string{
"app": service.Name,
},
},
}
setServiceLabelSelector(k8sService, selectors)
if selectors == nil {
k8sService.Labels = map[string]string{
"app": service.Name,
}
} else {
k8sService.Labels = selectors
}
for i, port := range service.Ports {
k8sService.Spec.Ports = append(k8sService.Spec.Ports, apiv1.ServicePort{
// TODO: name?
Name: strutil.Concat(strings.ToLower(port.Protocol), "-", strconv.Itoa(i)),
Port: int32(port.Port),
// The user on Dice only fills in Port, that is, Port (port exposed by service) and targetPort (port exposed by container) are the same
TargetPort: intstr.FromInt(port.Port),
// Append protocol feature, Protocol Type contains TCP, UDP, SCTP
Protocol: port.L4Protocol,
})
}
return k8sService
}
// TODO: Complete me.
func diffServiceMetadata(left, right *apiv1.Service) bool {
// compare the fields of Metadata and Spec
if !reflect.DeepEqual(left.Labels, right.Labels) {
return true
}
if !reflect.DeepEqual(left.Spec.Ports, right.Spec.Ports) {
return true
}
if !reflect.DeepEqual(left.Spec.Selector, right.Spec.Selector) {
return true
}
return false
}
// actually get deployment's names list, as k8s service would not be created
// if no ports exposed
func (k *Kubernetes) listServiceName(namespace string, labelSelector map[string]string) ([]string, error) {
strs := make([]string, 0)
deployList, err := k.deploy.List(namespace, labelSelector)
if err != nil {
return strs, err
}
for _, item := range deployList.Items {
strs = append(strs, item.Name)
}
daemonSets, err := k.ds.List(namespace, labelSelector)
if err != nil {
return strs, err
}
for _, item := range daemonSets.Items {
strs = append(strs, item.Name)
}
return strs, nil
}
func (k *Kubernetes) getRuntimeServiceMap(namespace string, labelSelector map[string]string) (map[string]RuntimeServiceOperator, error) {
m := map[string]RuntimeServiceOperator{}
deployList, err := k.deploy.List(namespace, labelSelector)
if err != nil {
return map[string]RuntimeServiceOperator{}, err
}
for _, item := range deployList.Items {
m[item.Name] = RuntimeServiceDelete
}
daemonSets, err := k.ds.List(namespace, labelSelector)
if err != nil {
return map[string]RuntimeServiceOperator{}, err
}
for _, item := range daemonSets.Items {
m[item.Name] = RuntimeServiceDelete
}
return m, nil
}
func getServiceName(service *apistructs.Service) string {
if service.ProjectServiceName != "" {
return service.ProjectServiceName
}
return service.Name
}
func setServiceLabelSelector(k8sService *apiv1.Service, selectors map[string]string) {
for k, v := range selectors {
k8sService.Spec.Selector[k] = v
}
}
func (k *Kubernetes) deleteRuntimeServiceWithProjectNamespace(service apistructs.Service) error {
if service.ProjectServiceName != "" {
err := k.service.Delete(service.Namespace, service.ProjectServiceName)
if err != nil {
return fmt.Errorf("delete service %s error: %v", service.Name, err)
}
}
if projectService, ok := deepcopy.Copy(service).(apistructs.Service); ok {
projectService.Name = projectService.ProjectServiceName
if k.istioEngine != istioctl.EmptyEngine {
err := k.istioEngine.OnServiceOperator(istioctl.ServiceDelete, &projectService)
if err != nil {
return fmt.Errorf("delete istio resource error: %v", err)
}
}
}
return nil
}
func (k *Kubernetes) createProjectService(service *apistructs.Service, sgID string) error {
if service.ProjectServiceName != "" {
projectService, ok := deepcopy.Copy(service).(*apistructs.Service)
if ok {
selectors := map[string]string{
LabelServiceGroupID: sgID,
"app": service.Name,
}
projectService.Name = service.ProjectServiceName
projectServiceErr := k.CreateService(projectService, selectors)
if projectServiceErr != nil {
errMsg := fmt.Sprintf("Create project service %s err %v", projectService.Name, projectServiceErr)
logrus.Errorf(errMsg)
return fmt.Errorf(errMsg)
}
}
}
return nil
}
func (k *Kubernetes) deleteProjectService(service *apistructs.Service) error {
if service.ProjectServiceName != "" {
projectService, ok := deepcopy.Copy(service).(*apistructs.Service)
if ok {
projectService.Name = service.ProjectServiceName
projectServiceErr := k.DeleteService(projectService.Namespace, projectService.Name)
if projectServiceErr != nil {
errMsg := fmt.Sprintf("Delete project service %s err %v", projectService.Name, projectServiceErr)
logrus.Errorf(errMsg)
return fmt.Errorf(errMsg)
}
}
}
logrus.Infof("delete the kubernetes service %s on namespace %s successfully", service.ProjectServiceName, service.Namespace)
return nil
}
func (k *Kubernetes) updateProjectService(service *apistructs.Service, sgID string) error {
if service.ProjectServiceName != "" {
projectService, ok := deepcopy.Copy(service).(*apistructs.Service)
if ok {
selectors := map[string]string{
LabelServiceGroupID: sgID,
"app": service.Name,
}
projectService.Name = service.ProjectServiceName
projectServiceErr := k.updateService(projectService, selectors)
if projectServiceErr != nil {
errMsg := fmt.Sprintf("Update project service %s err %v", projectService.Name, projectServiceErr)
logrus.Errorf(errMsg)
return fmt.Errorf(errMsg)
}
}
}
return nil
}
func (k *Kubernetes) UpdateK8sService(k8sService *apiv1.Service, service *apistructs.Service, selectors map[string]string) error {
newPorts := []apiv1.ServicePort{}
for i, p := range service.Ports {
port := apiv1.ServicePort{
Name: strutil.Concat(strings.ToLower(p.Protocol), "-", strconv.Itoa(i)),
Port: int32(p.Port),
TargetPort: intstr.FromInt(p.Port),
Protocol: p.L4Protocol,
}
newPorts = append(newPorts, port)
}
setServiceLabelSelector(k8sService, selectors)
k8sService.Spec.Ports = newPorts
if err := k.PutService(k8sService); err != nil {
errMsg := fmt.Sprintf("update service err %v", err)
logrus.Error(errMsg)
return fmt.Errorf(errMsg)
}
return nil
}