/
ec2.go
1765 lines (1580 loc) · 56.5 KB
/
ec2.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
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
//
// goamz - Go packages to interact with the Amazon Web Services.
//
// https://wiki.ubuntu.com/goamz
//
// Copyright (c) 2011 Canonical Ltd.
//
// Written by Gustavo Niemeyer <gustavo.niemeyer@canonical.com>
//
package ec2
import (
"crypto/rand"
"encoding/base64"
"encoding/hex"
"encoding/xml"
"errors"
"fmt"
"github.com/AdRoll/goamz/aws"
"log"
"net/http"
"net/http/httputil"
"net/url"
"sort"
"strconv"
"time"
)
const debug = false
// The EC2 type encapsulates operations with a specific EC2 region.
type EC2 struct {
aws.Auth
aws.Region
private byte // Reserve the right of using private data.
}
// New creates a new EC2.
func New(auth aws.Auth, region aws.Region) *EC2 {
return &EC2{auth, region, 0}
}
// ----------------------------------------------------------------------------
// Filtering helper.
// Filter builds filtering parameters to be used in an EC2 query which supports
// filtering. For example:
//
// filter := NewFilter()
// filter.Add("architecture", "i386")
// filter.Add("launch-index", "0")
// resp, err := ec2.DescribeInstances(nil, filter)
//
type Filter struct {
m map[string][]string
}
// NewFilter creates a new Filter.
func NewFilter() *Filter {
return &Filter{make(map[string][]string)}
}
// Add appends a filtering parameter with the given name and value(s).
func (f *Filter) Add(name string, value ...string) {
f.m[name] = append(f.m[name], value...)
}
func (f *Filter) addParams(params map[string]string) {
if f != nil {
a := make([]string, len(f.m))
i := 0
for k := range f.m {
a[i] = k
i++
}
sort.StringSlice(a).Sort()
for i, k := range a {
prefix := "Filter." + strconv.Itoa(i+1)
params[prefix+".Name"] = k
for j, v := range f.m[k] {
params[prefix+".Value."+strconv.Itoa(j+1)] = v
}
}
}
}
// ----------------------------------------------------------------------------
// Request dispatching logic.
// Error encapsulates an error returned by EC2.
//
// See http://goo.gl/VZGuC for more details.
type Error struct {
// HTTP status code (200, 403, ...)
StatusCode int
// EC2 error code ("UnsupportedOperation", ...)
Code string
// The human-oriented error message
Message string
RequestId string `xml:"RequestID"`
}
func (err *Error) Error() string {
if err.Code == "" {
return err.Message
}
return fmt.Sprintf("%s (%s)", err.Message, err.Code)
}
// For now a single error inst is being exposed. In the future it may be useful
// to provide access to all of them, but rather than doing it as an array/slice,
// use a *next pointer, so that it's backward compatible and it continues to be
// easy to handle the first error, which is what most people will want.
type xmlErrors struct {
RequestId string `xml:"RequestID"`
Errors []Error `xml:"Errors>Error"`
}
var timeNow = time.Now
func (ec2 *EC2) query(params map[string]string, resp interface{}) error {
values := multimap(params)
values.Set("Version", "2014-02-01")
values.Set("Timestamp", timeNow().In(time.UTC).Format(time.RFC3339))
client := http.Client{}
req, err := http.NewRequest("GET", ec2.Region.EC2Endpoint.Endpoint, nil)
if err != nil {
return err
}
if req.URL.Path == "" {
req.URL.Path = "/"
}
req.URL.RawQuery = values.Encode()
if ec2.Region.EC2Endpoint.Signer == aws.V2Signature {
sgnr, err := aws.NewV2Signer(ec2.Auth, ec2.Region.EC2Endpoint)
sgnr.SignRequest(req)
if err != nil {
return err
}
} else if ec2.Region.EC2Endpoint.Signer == aws.V4Signature {
sgnr := aws.NewV4Signer(ec2.Auth, "ec2", ec2.Region)
sgnr.SignRequest(req)
} else {
str := fmt.Sprintf("Unknown signature type specified for region '%v'", ec2.Region.Name)
return errors.New(str)
}
r, err := client.Do(req)
if err != nil {
return err
}
if debug {
dump, _ := httputil.DumpResponse(r, true)
log.Printf("response:\n")
log.Printf("%v\n}\n", string(dump))
}
defer r.Body.Close()
if r.StatusCode != 200 {
return buildError(r)
}
err = xml.NewDecoder(r.Body).Decode(resp)
return err
}
func multimap(p map[string]string) url.Values {
q := make(url.Values, len(p))
for k, v := range p {
q[k] = []string{v}
}
return q
}
func buildError(r *http.Response) error {
errors := xmlErrors{}
xml.NewDecoder(r.Body).Decode(&errors)
var err Error
if len(errors.Errors) > 0 {
err = errors.Errors[0]
}
err.RequestId = errors.RequestId
err.StatusCode = r.StatusCode
if err.Message == "" {
err.Message = r.Status
}
return &err
}
func makeParams(action string) map[string]string {
params := make(map[string]string)
params["Action"] = action
return params
}
func addParamsList(params map[string]string, label string, ids []string) {
for i, id := range ids {
params[label+"."+strconv.Itoa(i+1)] = id
}
}
// ----------------------------------------------------------------------------
// Instance management functions and types.
// The RunInstances type encapsulates options for the respective request in EC2.
//
// See http://goo.gl/Mcm3b for more details.
type RunInstancesOptions struct {
ImageId string
MinCount int
MaxCount int
KeyName string
InstanceType string
SecurityGroups []SecurityGroup
KernelId string
RamdiskId string
UserData []byte
AvailabilityZone string
PlacementGroupName string
Tenancy string
Monitoring bool
SubnetId string
DisableAPITermination bool
ShutdownBehavior string
PrivateIPAddress string
IamInstanceProfile IamInstanceProfile
BlockDeviceMappings []BlockDeviceMapping
EbsOptimized bool
NetworkInterfaces []NetworkInterface
}
// NetworkInterface is for creating and attaching to ec2 instances on launch
type NetworkInterface struct {
AssociatePublicIpAddress bool
SubnetId string
Description string
SecurityGroups []SecurityGroup
DeleteOnTermination bool
PrivateIpAddress string // primary private ip
PrivateIpAddresses []InstancePrivateIpAddress
}
// Response to a RunInstances request.
//
// See http://goo.gl/Mcm3b for more details.
type RunInstancesResp struct {
RequestId string `xml:"requestId"`
ReservationId string `xml:"reservationId"`
OwnerId string `xml:"ownerId"`
SecurityGroups []SecurityGroup `xml:"groupSet>item"`
Instances []Instance `xml:"instancesSet>item"`
}
// Instance encapsulates a running instance in EC2.
//
// See http://goo.gl/OCH8a for more details.
type Instance struct {
// General instance information
InstanceId string `xml:"instanceId"` // The ID of the instance launched
InstanceType string `xml:"instanceType"` // The instance type eg. m1.small | m1.medium | m1.large etc
AvailabilityZone string `xml:"placement>availabilityZone"` // The Availability Zone the instance is located in
Tags []Tag `xml:"tagSet>item"` // Any tags assigned to the resource
State InstanceState `xml:"instanceState"` // The current state of the instance
Reason string `xml:"reason"` // The reason for the most recent state transition. This might be an empty string
StateReason InstanceStateReason `xml:"stateReason"` // The reason for the most recent state transition
ImageId string `xml:"imageId"` // The ID of the AMI used to launch the instance
KeyName string `xml:"keyName"` // The key pair name, if this instance was launched with an associated key pair
Monitoring string `xml:"monitoring>state"` // Valid values: disabled | enabled | pending
IamInstanceProfile IamInstanceProfile `xml:"iamInstanceProfile"` // The IAM instance profile associated with the instance
LaunchTime string `xml:"launchTime"` // The time the instance was launched
OwnerId string // This isn't currently returned in the response, and is taken from the parent reservation
// More specific information
Architecture string `xml:"architecture"` // Valid values: i386 | x86_64
Hypervisor string `xml:"hypervisor"` // Valid values: ovm | xen
KernelId string `xml:"kernelId"` // The kernel associated with this instance
RamDiskId string `xml:"ramdiskId"` // The RAM disk associated with this instance
Platform string `xml:"platform"` // The value is Windows for Windows AMIs; otherwise blank
VirtualizationType string `xml:"virtualizationType"` // Valid values: paravirtual | hvm
AMILaunchIndex int `xml:"amiLaunchIndex"` // The AMI launch index, which can be used to find this instance in the launch group
PlacementGroupName string `xml:"placement>groupName"` // The name of the placement group the instance is in (for cluster compute instances)
Tenancy string `xml:"placement>tenancy"` // (VPC only) Valid values: default | dedicated
InstanceLifecycle string `xml:"instanceLifecycle"` // Spot instance? Valid values: "spot" or blank
SpotInstanceRequestId string `xml:"spotInstanceRequestId"` // The ID of the Spot Instance request
ClientToken string `xml:"clientToken"` // The idempotency token you provided when you launched the instance
ProductCodes []ProductCode `xml:"productCodes>item"` // The product codes attached to this instance
// Storage
RootDeviceType string `xml:"rootDeviceType"` // Valid values: ebs | instance-store
RootDeviceName string `xml:"rootDeviceName"` // The root device name (for example, /dev/sda1)
BlockDevices []BlockDevice `xml:"blockDeviceMapping>item"` // Any block device mapping entries for the instance
EbsOptimized bool `xml:"ebsOptimized"` // Indicates whether the instance is optimized for Amazon EBS I/O
// Network
DNSName string `xml:"dnsName"` // The public DNS name assigned to the instance. This element remains empty until the instance enters the running state
PrivateDNSName string `xml:"privateDnsName"` // The private DNS name assigned to the instance. This DNS name can only be used inside the Amazon EC2 network. This element remains empty until the instance enters the running state
IPAddress string `xml:"ipAddress"` // The public IP address assigned to the instance
PrivateIPAddress string `xml:"privateIpAddress"` // The private IP address assigned to the instance
SubnetId string `xml:"subnetId"` // The ID of the subnet in which the instance is running
VpcId string `xml:"vpcId"` // The ID of the VPC in which the instance is running
SecurityGroups []SecurityGroup `xml:"groupSet>item"` // A list of the security groups for the instance
// Advanced Networking
NetworkInterfaces []InstanceNetworkInterface `xml:"networkInterfaceSet>item"` // (VPC) One or more network interfaces for the instance
SourceDestCheck bool `xml:"sourceDestCheck"` // Controls whether source/destination checking is enabled on the instance
SriovNetSupport string `xml:"sriovNetSupport"` // Specifies whether enhanced networking is enabled. Valid values: simple
}
// isSpotInstance returns if the instance is a spot instance
func (i Instance) IsSpotInstance() bool {
if i.InstanceLifecycle == "spot" {
return true
}
return false
}
type BlockDevice struct {
DeviceName string `xml:"deviceName"`
EBS EBS `xml:"ebs"`
}
type EBS struct {
VolumeId string `xml:"volumeId"`
Status string `xml:"status"`
AttachTime string `xml:"attachTime"`
DeleteOnTermination bool `xml:"deleteOnTermination"`
}
// ProductCode represents a product code
// See http://goo.gl/hswmQm for more details.
type ProductCode struct {
ProductCode string `xml:"productCode"` // The product code
Type string `xml:"type"` // Valid values: devpay | marketplace
}
// InstanceNetworkInterface represents a network interface attached to an instance
// See http://goo.gl/9eW02N for more details.
type InstanceNetworkInterface struct {
Id string `xml:"networkInterfaceId"`
Description string `xml:"description"`
SubnetId string `xml:"subnetId"`
VpcId string `xml:"vpcId"`
OwnerId string `xml:"ownerId"` // The ID of the AWS account that created the network interface.
Status string `xml:"status"` // Valid values: available | attaching | in-use | detaching
MacAddress string `xml:"macAddress"`
PrivateIPAddress string `xml:"privateIpAddress"`
PrivateDNSName string `xml:"privateDnsName"`
SourceDestCheck bool `xml:"sourceDestCheck"`
SecurityGroups []SecurityGroup `xml:"groupSet>item"`
Attachment InstanceNetworkInterfaceAttachment `xml:"attachment"`
Association InstanceNetworkInterfaceAssociation `xml:"association"`
PrivateIPAddresses []InstancePrivateIpAddress `xml:"privateIpAddressesSet>item"`
}
// InstanceNetworkInterfaceAttachment describes a network interface attachment to an instance
// See http://goo.gl/0ql0Cg for more details
type InstanceNetworkInterfaceAttachment struct {
AttachmentID string `xml:"attachmentID"` // The ID of the network interface attachment.
DeviceIndex int32 `xml:"deviceIndex"` // The index of the device on the instance for the network interface attachment.
Status string `xml:"status"` // Valid values: attaching | attached | detaching | detached
AttachTime string `xml:"attachTime"` // Time attached, as a Datetime
DeleteOnTermination bool `xml:"deleteOnTermination"` // Indicates whether the network interface is deleted when the instance is terminated.
}
// Describes association information for an Elastic IP address.
// See http://goo.gl/YCDdMe for more details
type InstanceNetworkInterfaceAssociation struct {
PublicIP string `xml:"publicIp"` // The address of the Elastic IP address bound to the network interface
PublicDNSName string `xml:"publicDnsName"` // The public DNS name
IPOwnerId string `xml:"ipOwnerId"` // The ID of the owner of the Elastic IP address
}
// InstancePrivateIpAddress describes a private IP address
// See http://goo.gl/irN646 for more details
type InstancePrivateIpAddress struct {
PrivateIPAddress string `xml:"privateIpAddress"` // The private IP address of the network interface
PrivateDNSName string `xml:"privateDnsName"` // The private DNS name
Primary bool `xml:"primary"` // Indicates whether this IP address is the primary private IP address of the network interface
Association InstanceNetworkInterfaceAssociation `xml:"association"` // The association information for an Elastic IP address for the network interface
}
// IamInstanceProfile
// See http://goo.gl/PjyijL for more details
type IamInstanceProfile struct {
ARN string `xml:"arn"`
Id string `xml:"id"`
Name string `xml:"name"`
}
// RunInstances starts new instances in EC2.
// If options.MinCount and options.MaxCount are both zero, a single instance
// will be started; otherwise if options.MaxCount is zero, options.MinCount
// will be used insteead.
//
// See http://goo.gl/Mcm3b for more details.
func (ec2 *EC2) RunInstances(options *RunInstancesOptions) (resp *RunInstancesResp, err error) {
params := makeParams("RunInstances")
params["ImageId"] = options.ImageId
params["InstanceType"] = options.InstanceType
var min, max int
if options.MinCount == 0 && options.MaxCount == 0 {
min = 1
max = 1
} else if options.MaxCount == 0 {
min = options.MinCount
max = min
} else {
min = options.MinCount
max = options.MaxCount
}
params["MinCount"] = strconv.Itoa(min)
params["MaxCount"] = strconv.Itoa(max)
i, j := 1, 1
for _, g := range options.SecurityGroups {
if g.Id != "" {
params["SecurityGroupId."+strconv.Itoa(i)] = g.Id
i++
} else {
params["SecurityGroup."+strconv.Itoa(j)] = g.Name
j++
}
}
for i, d := range options.BlockDeviceMappings {
if d.DeviceName != "" {
params["BlockDeviceMapping."+strconv.Itoa(i)+".DeviceName"] = d.DeviceName
}
if d.VirtualName != "" {
params["BlockDeviceMapping."+strconv.Itoa(i)+".VirtualName"] = d.VirtualName
}
if d.SnapshotId != "" {
params["BlockDeviceMapping."+strconv.Itoa(i)+".Ebs.SnapshotId"] = d.SnapshotId
}
if d.VolumeType != "" {
params["BlockDeviceMapping."+strconv.Itoa(i)+".Ebs.VolumeType"] = d.VolumeType
}
if d.VolumeSize != 0 {
params["BlockDeviceMapping."+strconv.Itoa(i)+".Ebs.VolumeSize"] = strconv.FormatInt(d.VolumeSize, 10)
}
if d.DeleteOnTermination {
params["BlockDeviceMapping."+strconv.Itoa(i)+".Ebs.DeleteOnTermination"] = "true"
}
if d.IOPS != 0 {
params["BlockDeviceMapping."+strconv.Itoa(i)+".Ebs.Iops"] = strconv.FormatInt(d.IOPS, 10)
}
}
token, err := clientToken()
if err != nil {
return nil, err
}
params["ClientToken"] = token
if options.KeyName != "" {
params["KeyName"] = options.KeyName
}
if options.KernelId != "" {
params["KernelId"] = options.KernelId
}
if options.RamdiskId != "" {
params["RamdiskId"] = options.RamdiskId
}
if options.UserData != nil {
userData := make([]byte, base64.StdEncoding.EncodedLen(len(options.UserData)))
base64.StdEncoding.Encode(userData, options.UserData)
params["UserData"] = string(userData)
}
if options.AvailabilityZone != "" {
params["Placement.AvailabilityZone"] = options.AvailabilityZone
}
if options.PlacementGroupName != "" {
params["Placement.GroupName"] = options.PlacementGroupName
}
if options.Tenancy != "" {
params["Placement.Tenancy"] = options.Tenancy
}
if options.Monitoring {
params["Monitoring.Enabled"] = "true"
}
if options.SubnetId != "" {
params["SubnetId"] = options.SubnetId
}
if options.DisableAPITermination {
params["DisableApiTermination"] = "true"
}
if options.ShutdownBehavior != "" {
params["InstanceInitiatedShutdownBehavior"] = options.ShutdownBehavior
}
if options.PrivateIPAddress != "" {
params["PrivateIpAddress"] = options.PrivateIPAddress
}
if options.IamInstanceProfile.ARN != "" {
params["IamInstanceProfile.Arn"] = options.IamInstanceProfile.ARN
}
if options.IamInstanceProfile.Name != "" {
params["IamInstanceProfile.Name"] = options.IamInstanceProfile.Name
}
if options.EbsOptimized {
params["EbsOptimized"] = "true"
}
if options.NetworkInterfaces != nil {
for i, ni := range options.NetworkInterfaces {
prefix := fmt.Sprintf("NetworkInterface.%d.", i+1)
params[prefix+"DeviceIndex"] = strconv.Itoa(i)
if ni.SubnetId != "" {
params[prefix+"SubnetId"] = ni.SubnetId
}
if ni.Description != "" {
params[prefix+"Description"] = ni.Description
}
if ni.AssociatePublicIpAddress {
params[prefix+"AssociatePublicIpAddress"] = "true"
}
if ni.PrivateIpAddress != "" {
params[prefix+"PrivateIpAddress"] = ni.PrivateIpAddress
}
if ni.SecurityGroups != nil {
for secId, g := range ni.SecurityGroups {
params[prefix+"SecurityGroupId."+strconv.Itoa(secId+1)] = g.Id
}
}
if ni.DeleteOnTermination {
params[prefix+"DeleteOnTermination"] = "true"
}
if ni.PrivateIpAddresses != nil {
for pId, addy := range ni.PrivateIpAddresses {
params[prefix+"PrivateIpAddresses."+strconv.Itoa(pId+1)+".PrivateIpAddress"] = addy.PrivateIPAddress
if addy.Primary {
params[prefix+"PrivateIpAddresses."+strconv.Itoa(pId+1)+".Primary"] = "true"
}
}
}
}
}
resp = &RunInstancesResp{}
err = ec2.query(params, resp)
if err != nil {
return nil, err
}
return
}
func clientToken() (string, error) {
// Maximum EC2 client token size is 64 bytes.
// Each byte expands to two when hex encoded.
buf := make([]byte, 32)
_, err := rand.Read(buf)
if err != nil {
return "", err
}
return hex.EncodeToString(buf), nil
}
// Response to a TerminateInstances request.
//
// See http://goo.gl/3BKHj for more details.
type TerminateInstancesResp struct {
RequestId string `xml:"requestId"`
StateChanges []InstanceStateChange `xml:"instancesSet>item"`
}
// InstanceState encapsulates the state of an instance in EC2.
//
// See http://goo.gl/y3ZBq for more details.
type InstanceState struct {
Code int `xml:"code"` // Watch out, bits 15-8 have unpublished meaning.
Name string `xml:"name"`
}
// InstanceStateChange informs of the previous and current states
// for an instance when a state change is requested.
type InstanceStateChange struct {
InstanceId string `xml:"instanceId"`
CurrentState InstanceState `xml:"currentState"`
PreviousState InstanceState `xml:"previousState"`
}
// InstanceStateReason describes a state change for an instance in EC2
//
// See http://goo.gl/KZkbXi for more details
type InstanceStateReason struct {
Code string `xml:"code"`
Message string `xml:"message"`
}
// TerminateInstances requests the termination of instances when the given ids.
//
// See http://goo.gl/3BKHj for more details.
func (ec2 *EC2) TerminateInstances(instIds []string) (resp *TerminateInstancesResp, err error) {
params := makeParams("TerminateInstances")
addParamsList(params, "InstanceId", instIds)
resp = &TerminateInstancesResp{}
err = ec2.query(params, resp)
if err != nil {
return nil, err
}
return
}
// Response to a DescribeAddresses request.
//
// See http://goo.gl/zW7J4p for more details.
type DescribeAddressesResp struct {
RequestId string `xml:"requestId"`
Addresses []Address `xml:"addressesSet>item"`
}
// Address represents an Elastic IP Address
// See http://goo.gl/uxCjp7 for more details
type Address struct {
PublicIp string `xml:"publicIp"`
AllocationId string `xml:"allocationId"`
Domain string `xml:"domain"`
InstanceId string `xml:"instanceId"`
AssociationId string `xml:"associationId"`
NetworkInterfaceId string `xml:"networkInterfaceId"`
NetworkInterfaceOwnerId string `xml:"networkInterfaceOwnerId"`
PrivateIpAddress string `xml:"privateIpAddress"`
}
// DescribeAddresses returns details about one or more
// Elastic IP Addresses. Returned addresses can be
// filtered by Public IP, Allocation ID or multiple filters
//
// See http://goo.gl/zW7J4p for more details.
func (ec2 *EC2) DescribeAddresses(publicIps []string, allocationIds []string, filter *Filter) (resp *DescribeAddressesResp, err error) {
params := makeParams("DescribeAddresses")
addParamsList(params, "PublicIp", publicIps)
addParamsList(params, "AllocationId", allocationIds)
filter.addParams(params)
resp = &DescribeAddressesResp{}
err = ec2.query(params, resp)
if err != nil {
return nil, err
}
return
}
//Response to an AllocateAddress request
//
// See http://goo.gl/aLPmbm for more details
type AllocateAddressResp struct {
RequestId string `xml:"requestId"`
PublicIp string `xml:"publicIp"`
Domain string `xml:"domain"`
AllocationId string `xml:"allocationId"`
}
// Allocates a new Elastic ip address.
// The domain parameter is optional and is used for provisioning an ip address
// in EC2 or in VPC respectively
//
// See http://goo.gl/aLPmbm for more details
func (ec2 *EC2) AllocateAddress(domain string) (resp *AllocateAddressResp, err error) {
params := makeParams("AllocateAddress")
params["Domain"] = domain
resp = &AllocateAddressResp{}
err = ec2.query(params, resp)
if err != nil {
return nil, err
}
return resp, nil
}
// Response to a ReleaseAddress request
//
// See http://goo.gl/Ciw2Z8 for more details
type ReleaseAddressResp struct {
RequestId string `xml:"requestId"`
Return bool `xml:"return"`
}
// Release existing elastic ip address from the account
// PublicIp = Required for EC2
// AllocationId = Required for VPC
//
// See http://goo.gl/Ciw2Z8 for more details
func (ec2 *EC2) ReleaseAddress(publicIp, allocationId string) (resp *ReleaseAddressResp, err error) {
params := makeParams("ReleaseAddress")
if publicIp != "" {
params["PublicIp"] = publicIp
}
if allocationId != "" {
params["AllocationId"] = allocationId
}
resp = &ReleaseAddressResp{}
err = ec2.query(params, resp)
if err != nil {
return nil, err
}
return resp, nil
}
// Options set for AssociateAddress
//
// See http://goo.gl/hhj4z7 for more details
type AssociateAddressOptions struct {
PublicIp string
InstanceId string
AllocationId string
NetworkInterfaceId string
PrivateIpAddress string
AllowReassociation bool
}
// Response to an AssociateAddress request
//
// See http://goo.gl/hhj4z7 for more details
type AssociateAddressResp struct {
RequestId string `xml:"requestId"`
Return bool `xml:"return"`
AssociationId string `xml:"associationId"`
}
// Associate an Elastic ip address to an instance id or a network interface
//
// See http://goo.gl/hhj4z7 for more details
func (ec2 *EC2) AssociateAddress(options *AssociateAddressOptions) (resp *AssociateAddressResp, err error) {
params := makeParams("AssociateAddress")
params["InstanceId"] = options.InstanceId
if options.PublicIp != "" {
params["PublicIp"] = options.PublicIp
}
if options.AllocationId != "" {
params["AllocationId"] = options.AllocationId
}
if options.NetworkInterfaceId != "" {
params["NetworkInterfaceId"] = options.NetworkInterfaceId
}
if options.PrivateIpAddress != "" {
params["PrivateIpAddress"] = options.PrivateIpAddress
}
if options.AllowReassociation {
params["AllowReassociation"] = "true"
}
resp = &AssociateAddressResp{}
err = ec2.query(params, resp)
if err != nil {
return nil, err
}
return resp, nil
}
// Response to a Diassociate request
//
// See http://goo.gl/Dapkuzfor more details
type DiassociateAddressResp struct {
RequestId string `xml:"requestId"`
Return bool `xml:"return"`
}
// Diassociate an elastic ip address from an instance
// PublicIp - Required for EC2
// AssociationId - Required for VPC
// See http://goo.gl/Dapkuz for more details
func (ec2 *EC2) DiassociateAddress(publicIp, associationId string) (resp *DiassociateAddressResp, err error) {
params := makeParams("DiassociateAddress")
if publicIp != "" {
params["PublicIp"] = publicIp
}
if associationId != "" {
params["AssociationId"] = associationId
}
resp = &DiassociateAddressResp{}
err = ec2.query(params, resp)
if err != nil {
return nil, err
}
return resp, nil
}
// Response to a DescribeInstances request.
//
// See http://goo.gl/mLbmw for more details.
type DescribeInstancesResp struct {
RequestId string `xml:"requestId"`
Reservations []Reservation `xml:"reservationSet>item"`
}
// Reservation represents details about a reservation in EC2.
//
// See http://goo.gl/0ItPT for more details.
type Reservation struct {
ReservationId string `xml:"reservationId"`
OwnerId string `xml:"ownerId"`
RequesterId string `xml:"requesterId"`
SecurityGroups []SecurityGroup `xml:"groupSet>item"`
Instances []Instance `xml:"instancesSet>item"`
}
// Instances returns details about instances in EC2. Both parameters
// are optional, and if provided will limit the instances returned to those
// matching the given instance ids or filtering rules.
//
// See http://goo.gl/4No7c for more details.
func (ec2 *EC2) DescribeInstances(instIds []string, filter *Filter) (resp *DescribeInstancesResp, err error) {
params := makeParams("DescribeInstances")
addParamsList(params, "InstanceId", instIds)
filter.addParams(params)
resp = &DescribeInstancesResp{}
err = ec2.query(params, resp)
if err != nil {
return nil, err
}
// Add additional parameters to instances which aren't available in the response
for i, rsv := range resp.Reservations {
ownerId := rsv.OwnerId
for j, inst := range rsv.Instances {
inst.OwnerId = ownerId
resp.Reservations[i].Instances[j] = inst
}
}
return
}
// ----------------------------------------------------------------------------
// Image and snapshot management functions and types.
// Response to a DescribeImages request.
//
// See http://goo.gl/hLnyg for more details.
type ImagesResp struct {
RequestId string `xml:"requestId"`
Images []Image `xml:"imagesSet>item"`
}
// BlockDeviceMapping represents the association of a block device with an image.
//
// See http://goo.gl/wnDBf for more details.
type BlockDeviceMapping struct {
DeviceName string `xml:"deviceName"`
VirtualName string `xml:"virtualName"`
SnapshotId string `xml:"ebs>snapshotId"`
VolumeType string `xml:"ebs>volumeType"`
VolumeSize int64 `xml:"ebs>volumeSize"`
DeleteOnTermination bool `xml:"ebs>deleteOnTermination"`
// The number of I/O operations per second (IOPS) that the volume supports.
IOPS int64 `xml:"ebs>iops"`
}
// Image represents details about an image.
//
// See http://goo.gl/iSqJG for more details.
type Image struct {
Id string `xml:"imageId"`
Name string `xml:"name"`
Description string `xml:"description"`
Type string `xml:"imageType"`
State string `xml:"imageState"`
Location string `xml:"imageLocation"`
Public bool `xml:"isPublic"`
Architecture string `xml:"architecture"`
Platform string `xml:"platform"`
ProductCodes []string `xml:"productCode>item>productCode"`
KernelId string `xml:"kernelId"`
RamdiskId string `xml:"ramdiskId"`
StateReason string `xml:"stateReason"`
OwnerId string `xml:"imageOwnerId"`
OwnerAlias string `xml:"imageOwnerAlias"`
RootDeviceType string `xml:"rootDeviceType"`
RootDeviceName string `xml:"rootDeviceName"`
VirtualizationType string `xml:"virtualizationType"`
Tags []Tag `xml:"tagSet>item"`
Hypervisor string `xml:"hypervisor"`
BlockDevices []BlockDeviceMapping `xml:"blockDeviceMapping>item"`
}
// Images returns details about available images.
// The ids and filter parameters, if provided, will limit the images returned.
// For example, to get all the private images associated with this account set
// the boolean filter "is-private" to true.
//
// Note: calling this function with nil ids and filter parameters will result in
// a very large number of images being returned.
//
// See http://goo.gl/SRBhW for more details.
func (ec2 *EC2) Images(ids []string, filter *Filter) (resp *ImagesResp, err error) {
params := makeParams("DescribeImages")
for i, id := range ids {
params["ImageId."+strconv.Itoa(i+1)] = id
}
filter.addParams(params)
resp = &ImagesResp{}
err = ec2.query(params, resp)
if err != nil {
return nil, err
}
return
}
type CreateImageResp struct {
RequestId string `xml:"requestId"`
ImageId string `xml:"imageId"`
}
// CreateImage creates an Amazon EBS-backed AMI from an Amazon EBS-backed instance that
// is either running or stopped.
//
// see http://goo.gl/MnMunA for more details.
func (ec2 *EC2) CreateImage(instanceId, name, description string, noReboot bool) (resp *CreateImageResp, err error) {
params := makeParams("CreateImage")
params["InstanceId"] = instanceId
params["Name"] = name
params["Description"] = description
if noReboot {
params["NoReboot"] = "true"
}
resp = &CreateImageResp{}
err = ec2.query(params, resp)
if err != nil {
return nil, err
}
return
}
// CopyImage initiates the copy of an AMI from the specified source region to the current region.
//
// see http://docs.aws.amazon.com/AWSEC2/latest/APIReference/ApiReference-query-CopyImage.html for more details.
func (ec2 *EC2) CopyImage(sourceRegion aws.Region, imageId, name, description string) (resp *CreateImageResp, err error) {
params := makeParams("CopyImage")
params["SourceRegion"] = sourceRegion.Name
params["SourceImageId"] = imageId
params["Name"] = name
params["Description"] = description
resp = &CreateImageResp{}
err = ec2.query(params, resp)
if err != nil {
return nil, err
}
return
}
// Response to a CreateSnapshot request.
//
// See http://goo.gl/ttcda for more details.
type CreateSnapshotResp struct {
RequestId string `xml:"requestId"`
Snapshot
}
// CreateSnapshot creates a volume snapshot and stores it in S3.
//
// See http://goo.gl/ttcda for more details.
func (ec2 *EC2) CreateSnapshot(volumeId, description string) (resp *CreateSnapshotResp, err error) {
params := makeParams("CreateSnapshot")
params["VolumeId"] = volumeId
params["Description"] = description
resp = &CreateSnapshotResp{}
err = ec2.query(params, resp)
if err != nil {
return nil, err
}
return
}
// DeleteSnapshots deletes the volume snapshots with the given ids.
//
// Note: If you make periodic snapshots of a volume, the snapshots are
// incremental so that only the blocks on the device that have changed
// since your last snapshot are incrementally saved in the new snapshot.
// Even though snapshots are saved incrementally, the snapshot deletion
// process is designed so that you need to retain only the most recent
// snapshot in order to restore the volume.
//
// See http://goo.gl/vwU1y for more details.
func (ec2 *EC2) DeleteSnapshots(ssid string) (resp *SimpleResp, err error) {
params := makeParams("DeleteSnapshot")
params["SnapshotId.1"] = ssid
resp = &SimpleResp{}
err = ec2.query(params, resp)
if err != nil {
return nil, err
}