forked from hashicorp/terraform
-
Notifications
You must be signed in to change notification settings - Fork 0
/
resource_aws_route53_record.go
334 lines (283 loc) · 8.77 KB
/
resource_aws_route53_record.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
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
package aws
import (
"fmt"
"log"
"strings"
"time"
"github.com/hashicorp/terraform/helper/hashcode"
"github.com/hashicorp/terraform/helper/resource"
"github.com/hashicorp/terraform/helper/schema"
"github.com/hashicorp/aws-sdk-go/aws"
"github.com/hashicorp/aws-sdk-go/gen/route53"
)
func resourceAwsRoute53Record() *schema.Resource {
return &schema.Resource{
Create: resourceAwsRoute53RecordCreate,
Read: resourceAwsRoute53RecordRead,
Update: resourceAwsRoute53RecordUpdate,
Delete: resourceAwsRoute53RecordDelete,
Schema: map[string]*schema.Schema{
"name": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"type": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"zone_id": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"ttl": &schema.Schema{
Type: schema.TypeInt,
Required: true,
},
"records": &schema.Schema{
Type: schema.TypeSet,
Elem: &schema.Schema{Type: schema.TypeString},
Required: true,
Set: func(v interface{}) int {
return hashcode.String(v.(string))
},
},
},
}
}
func resourceAwsRoute53RecordUpdate(d *schema.ResourceData, meta interface{}) error {
// Route 53 supports CREATE, DELETE, and UPSERT actions. We use UPSERT, and
// AWS dynamically determines if a record should be created or updated.
// Amazon Route 53 can update an existing resource record set only when all
// of the following values match: Name, Type
// (and SetIdentifier, which we don't use yet).
// See http://docs.aws.amazon.com/Route53/latest/APIReference/API_ChangeResourceRecordSets_Requests.html#change-rrsets-request-action
//
// Because we use UPSERT, for resouce update here we simply fall through to
// our resource create function.
return resourceAwsRoute53RecordCreate(d, meta)
}
func resourceAwsRoute53RecordCreate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).r53conn
zone := cleanZoneID(d.Get("zone_id").(string))
zoneRecord, err := conn.GetHostedZone(&route53.GetHostedZoneRequest{ID: aws.String(zone)})
if err != nil {
return err
}
// Get the record
rec, err := resourceAwsRoute53RecordBuildSet(d, *zoneRecord.HostedZone.Name)
if err != nil {
return err
}
// Create the new records. We abuse StateChangeConf for this to
// retry for us since Route53 sometimes returns errors about another
// operation happening at the same time.
changeBatch := &route53.ChangeBatch{
Comment: aws.String("Managed by Terraform"),
Changes: []route53.Change{
route53.Change{
Action: aws.String("UPSERT"),
ResourceRecordSet: rec,
},
},
}
req := &route53.ChangeResourceRecordSetsRequest{
HostedZoneID: aws.String(cleanZoneID(*zoneRecord.HostedZone.ID)),
ChangeBatch: changeBatch,
}
log.Printf("[DEBUG] Creating resource records for zone: %s, name: %s",
zone, *rec.Name)
wait := resource.StateChangeConf{
Pending: []string{"rejected"},
Target: "accepted",
Timeout: 5 * time.Minute,
MinTimeout: 1 * time.Second,
Refresh: func() (interface{}, string, error) {
resp, err := conn.ChangeResourceRecordSets(req)
if err != nil {
if r53err, ok := err.(aws.APIError); ok {
if r53err.Code == "PriorRequestNotComplete" {
// There is some pending operation, so just retry
// in a bit.
return nil, "rejected", nil
}
}
return nil, "failure", err
}
return resp, "accepted", nil
},
}
respRaw, err := wait.WaitForState()
if err != nil {
return err
}
changeInfo := respRaw.(*route53.ChangeResourceRecordSetsResponse).ChangeInfo
// Generate an ID
d.SetId(fmt.Sprintf("%s_%s_%s", zone, d.Get("name").(string), d.Get("type").(string)))
// Wait until we are done
wait = resource.StateChangeConf{
Delay: 30 * time.Second,
Pending: []string{"PENDING"},
Target: "INSYNC",
Timeout: 30 * time.Minute,
MinTimeout: 5 * time.Second,
Refresh: func() (result interface{}, state string, err error) {
changeRequest := &route53.GetChangeRequest{
ID: aws.String(cleanChangeID(*changeInfo.ID)),
}
return resourceAwsGoRoute53Wait(conn, changeRequest)
},
}
_, err = wait.WaitForState()
if err != nil {
return err
}
return nil
}
func resourceAwsRoute53RecordRead(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).r53conn
zone := cleanZoneID(d.Get("zone_id").(string))
// get expanded name
zoneRecord, err := conn.GetHostedZone(&route53.GetHostedZoneRequest{ID: aws.String(zone)})
if err != nil {
return err
}
en := expandRecordName(d.Get("name").(string), *zoneRecord.HostedZone.Name)
lopts := &route53.ListResourceRecordSetsRequest{
HostedZoneID: aws.String(cleanZoneID(zone)),
StartRecordName: aws.String(en),
StartRecordType: aws.String(d.Get("type").(string)),
}
resp, err := conn.ListResourceRecordSets(lopts)
if err != nil {
return err
}
// Scan for a matching record
found := false
for _, record := range resp.ResourceRecordSets {
name := cleanRecordName(*record.Name)
if FQDN(name) != FQDN(*lopts.StartRecordName) {
continue
}
if strings.ToUpper(*record.Type) != strings.ToUpper(*lopts.StartRecordType) {
continue
}
found = true
err := d.Set("records", flattenResourceRecords(record.ResourceRecords))
if err != nil {
return fmt.Errorf("[DEBUG] Error setting records for: %s, error: %#v", en, err)
}
d.Set("ttl", record.TTL)
break
}
if !found {
d.SetId("")
}
return nil
}
func resourceAwsRoute53RecordDelete(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).r53conn
zone := cleanZoneID(d.Get("zone_id").(string))
log.Printf("[DEBUG] Deleting resource records for zone: %s, name: %s",
zone, d.Get("name").(string))
zoneRecord, err := conn.GetHostedZone(&route53.GetHostedZoneRequest{ID: aws.String(zone)})
if err != nil {
return err
}
// Get the records
rec, err := resourceAwsRoute53RecordBuildSet(d, *zoneRecord.HostedZone.Name)
if err != nil {
return err
}
// Create the new records
changeBatch := &route53.ChangeBatch{
Comment: aws.String("Deleted by Terraform"),
Changes: []route53.Change{
route53.Change{
Action: aws.String("DELETE"),
ResourceRecordSet: rec,
},
},
}
req := &route53.ChangeResourceRecordSetsRequest{
HostedZoneID: aws.String(cleanZoneID(zone)),
ChangeBatch: changeBatch,
}
wait := resource.StateChangeConf{
Pending: []string{"rejected"},
Target: "accepted",
Timeout: 5 * time.Minute,
MinTimeout: 1 * time.Second,
Refresh: func() (interface{}, string, error) {
_, err := conn.ChangeResourceRecordSets(req)
if err != nil {
if r53err, ok := err.(aws.APIError); ok {
if r53err.Code == "PriorRequestNotComplete" {
// There is some pending operation, so just retry
// in a bit.
return 42, "rejected", nil
}
if r53err.Code == "InvalidChangeBatch" {
// This means that the record is already gone.
return 42, "accepted", nil
}
}
return 42, "failure", err
}
return 42, "accepted", nil
},
}
if _, err := wait.WaitForState(); err != nil {
return err
}
return nil
}
func resourceAwsRoute53RecordBuildSet(d *schema.ResourceData, zoneName string) (*route53.ResourceRecordSet, error) {
recs := d.Get("records").(*schema.Set).List()
records := expandResourceRecords(recs, d.Get("type").(string))
// get expanded name
en := expandRecordName(d.Get("name").(string), zoneName)
// Create the RecordSet request with the fully expanded name, e.g.
// sub.domain.com. Route 53 requires a fully qualified domain name, but does
// not require the trailing ".", which it will itself, so we don't call FQDN
// here.
rec := &route53.ResourceRecordSet{
Name: aws.String(en),
Type: aws.String(d.Get("type").(string)),
TTL: aws.Long(int64(d.Get("ttl").(int))),
ResourceRecords: records,
}
return rec, nil
}
func FQDN(name string) string {
n := len(name)
if n == 0 || name[n-1] == '.' {
return name
} else {
return name + "."
}
}
// Route 53 stores the "*" wildcard indicator as ASCII 42 and returns the
// octal equivalent, "\\052". Here we look for that, and convert back to "*"
// as needed.
func cleanRecordName(name string) string {
str := name
if strings.HasPrefix(name, "\\052") {
str = strings.Replace(name, "\\052", "*", 1)
log.Printf("[DEBUG] Replacing octal \\052 for * in: %s", name)
}
return str
}
// Check if the current record name contains the zone suffix.
// If it does not, add the zone name to form a fully qualified name
// and keep AWS happy.
func expandRecordName(name, zone string) string {
rn := strings.TrimSuffix(name, ".")
zone = strings.TrimSuffix(zone, ".")
if !strings.HasSuffix(rn, zone) {
rn = strings.Join([]string{name, zone}, ".")
}
return rn
}