-
Notifications
You must be signed in to change notification settings - Fork 4.6k
/
subnet.go
202 lines (178 loc) · 5.4 KB
/
subnet.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
/*
Copyright 2019 The Kubernetes 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 openstacktasks
import (
"fmt"
"github.com/gophercloud/gophercloud"
"github.com/gophercloud/gophercloud/openstack/networking/v2/subnets"
"k8s.io/klog/v2"
"k8s.io/kops/upup/pkg/fi"
"k8s.io/kops/upup/pkg/fi/cloudup/openstack"
)
// +kops:fitask
type Subnet struct {
ID *string
Name *string
Network *Network
CIDR *string
DNSServers []*string
Tag *string
Lifecycle *fi.Lifecycle
}
// GetDependencies returns the dependencies of the Port task
func (e *Subnet) GetDependencies(tasks map[string]fi.Task) []fi.Task {
var deps []fi.Task
for _, task := range tasks {
if _, ok := task.(*Network); ok {
deps = append(deps, task)
}
}
return deps
}
var _ fi.CompareWithID = &Subnet{}
func (s *Subnet) CompareWithID() *string {
return s.ID
}
func NewSubnetTaskFromCloud(cloud openstack.OpenstackCloud, lifecycle *fi.Lifecycle, subnet *subnets.Subnet, find *Subnet) (*Subnet, error) {
network, err := cloud.GetNetwork(subnet.NetworkID)
if err != nil {
return nil, fmt.Errorf("NewSubnetTaskFromCloud: Failed to get network with ID %s: %v", subnet.NetworkID, err)
}
networkTask, err := NewNetworkTaskFromCloud(cloud, lifecycle, network, find.Tag)
if err != nil {
return nil, fmt.Errorf("error creating network task from cloud: %v", err)
}
nameservers := make([]*string, len(subnet.DNSNameservers))
for i, ns := range subnet.DNSNameservers {
nameservers[i] = fi.String(ns)
}
tag := ""
if find != nil && fi.ArrayContains(subnet.Tags, fi.StringValue(find.Tag)) {
tag = fi.StringValue(find.Tag)
}
actual := &Subnet{
ID: fi.String(subnet.ID),
Name: fi.String(subnet.Name),
Network: networkTask,
CIDR: fi.String(subnet.CIDR),
Lifecycle: lifecycle,
DNSServers: nameservers,
Tag: fi.String(tag),
}
if find != nil {
find.ID = actual.ID
}
return actual, nil
}
func (s *Subnet) Find(context *fi.Context) (*Subnet, error) {
cloud := context.Cloud.(openstack.OpenstackCloud)
opt := subnets.ListOpts{
ID: fi.StringValue(s.ID),
Name: fi.StringValue(s.Name),
NetworkID: fi.StringValue(s.Network.ID),
CIDR: fi.StringValue(s.CIDR),
EnableDHCP: fi.Bool(true),
IPVersion: 4,
}
rs, err := cloud.ListSubnets(opt)
if err != nil {
return nil, err
}
if rs == nil {
return nil, nil
} else if len(rs) != 1 {
return nil, fmt.Errorf("found multiple subnets with name: %s", fi.StringValue(s.Name))
}
return NewSubnetTaskFromCloud(cloud, s.Lifecycle, &rs[0], s)
}
func (s *Subnet) Run(context *fi.Context) error {
return fi.DefaultDeltaRunMethod(s, context)
}
func (*Subnet) CheckChanges(a, e, changes *Subnet) error {
if a == nil {
if e.Name == nil {
return fi.RequiredField("Name")
}
if e.Network == nil {
return fi.RequiredField("Network")
}
if e.CIDR == nil {
return fi.RequiredField("CIDR")
}
} else {
if changes.Name != nil {
return fi.CannotChangeField("Name")
}
if changes.Network != nil {
return fi.CannotChangeField("Network")
}
if changes.CIDR != nil {
return fi.CannotChangeField("CIDR")
}
}
return nil
}
func (*Subnet) RenderOpenstack(t *openstack.OpenstackAPITarget, a, e, changes *Subnet) error {
if a == nil {
klog.V(2).Infof("Creating Subnet with name:%q", fi.StringValue(e.Name))
opt := subnets.CreateOpts{
Name: fi.StringValue(e.Name),
NetworkID: fi.StringValue(e.Network.ID),
IPVersion: gophercloud.IPv4,
CIDR: fi.StringValue(e.CIDR),
EnableDHCP: fi.Bool(true),
}
if len(e.DNSServers) > 0 {
dnsNameSrv := make([]string, len(e.DNSServers))
for i, ns := range e.DNSServers {
dnsNameSrv[i] = fi.StringValue(ns)
}
opt.DNSNameservers = dnsNameSrv
}
v, err := t.Cloud.CreateSubnet(opt)
if err != nil {
return fmt.Errorf("Error creating subnet: %v", err)
}
err = t.Cloud.AppendTag(openstack.ResourceTypeSubnet, v.ID, fi.StringValue(e.Tag))
if err != nil {
return fmt.Errorf("Error appending tag to subnet: %v", err)
}
e.ID = fi.String(v.ID)
klog.V(2).Infof("Creating a new Openstack subnet, id=%s", v.ID)
return nil
} else {
if changes.Tag != nil {
err := t.Cloud.AppendTag(openstack.ResourceTypeSubnet, fi.StringValue(a.ID), fi.StringValue(changes.Tag))
if err != nil {
return fmt.Errorf("error appending tag to subnet: %v", err)
}
}
client := t.Cloud.(openstack.OpenstackCloud).NetworkingClient()
opt := subnets.UpdateOpts{}
if changes.DNSServers != nil {
dnsNameSrv := make([]string, len(e.DNSServers))
for i, ns := range e.DNSServers {
dnsNameSrv[i] = fi.StringValue(ns)
}
opt.DNSNameservers = &dnsNameSrv
}
result := subnets.Update(client, fi.StringValue(a.ID), opt)
klog.Infof("Updated %v", opt)
if result.Err != nil {
return fmt.Errorf("error updating subnet %v: %v", a.ID, result.Err)
}
}
e.ID = a.ID
klog.V(2).Infof("Using an existing Openstack subnet, id=%s", fi.StringValue(e.ID))
return nil
}