-
Notifications
You must be signed in to change notification settings - Fork 3.3k
/
step_create_image.go
134 lines (117 loc) · 3.88 KB
/
step_create_image.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
package openstack
import (
"context"
"fmt"
"log"
"time"
"github.com/gophercloud/gophercloud/openstack/blockstorage/extensions/volumeactions"
"github.com/gophercloud/gophercloud"
"github.com/gophercloud/gophercloud/openstack/compute/v2/servers"
"github.com/gophercloud/gophercloud/openstack/imageservice/v2/images"
"github.com/hashicorp/packer/helper/multistep"
"github.com/hashicorp/packer/packer"
)
type stepCreateImage struct {
UseBlockStorageVolume bool
}
func (s *stepCreateImage) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
config := state.Get("config").(*Config)
server := state.Get("server").(*servers.Server)
ui := state.Get("ui").(packer.Ui)
// We need the v2 compute client
computeClient, err := config.computeV2Client()
if err != nil {
err = fmt.Errorf("Error initializing compute client: %s", err)
state.Put("error", err)
return multistep.ActionHalt
}
// We need the v2 image client
imageClient, err := config.imageV2Client()
if err != nil {
err = fmt.Errorf("Error initializing image service client: %s", err)
state.Put("error", err)
return multistep.ActionHalt
}
// Create the image.
// Image source depends on the type of the Compute instance. It can be
// Block Storage service volume or regular Compute service local volume.
ui.Say(fmt.Sprintf("Creating the image: %s", config.ImageName))
var imageId string
if s.UseBlockStorageVolume {
// We need the v3 block storage client.
blockStorageClient, err := config.blockStorageV3Client()
if err != nil {
err = fmt.Errorf("Error initializing block storage client: %s", err)
state.Put("error", err)
return multistep.ActionHalt
}
volume := state.Get("volume_id").(string)
image, err := volumeactions.UploadImage(blockStorageClient, volume, volumeactions.UploadImageOpts{
DiskFormat: config.ImageDiskFormat,
ImageName: config.ImageName,
}).Extract()
if err != nil {
err := fmt.Errorf("Error creating image: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
imageId = image.ImageID
} else {
imageId, err = servers.CreateImage(computeClient, server.ID, servers.CreateImageOpts{
Name: config.ImageName,
Metadata: config.ImageMetadata,
}).ExtractImageID()
if err != nil {
err := fmt.Errorf("Error creating image: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
}
// Set the Image ID in the state
ui.Message(fmt.Sprintf("Image: %s", imageId))
state.Put("image", imageId)
// Wait for the image to become ready
ui.Say(fmt.Sprintf("Waiting for image %s (image id: %s) to become ready...", config.ImageName, imageId))
if err := WaitForImage(ctx, imageClient, imageId); err != nil {
err := fmt.Errorf("Error waiting for image: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
return multistep.ActionContinue
}
func (s *stepCreateImage) Cleanup(multistep.StateBag) {
// No cleanup...
}
// WaitForImage waits for the given Image ID to become ready.
func WaitForImage(ctx context.Context, client *gophercloud.ServiceClient, imageId string) error {
maxNumErrors := 10
numErrors := 0
for {
if err := ctx.Err(); err != nil {
return err
}
image, err := images.Get(client, imageId).Extract()
if err != nil {
errCode, ok := err.(*gophercloud.ErrUnexpectedResponseCode)
if ok && (errCode.Actual == 500 || errCode.Actual == 404) {
numErrors++
if numErrors >= maxNumErrors {
log.Printf("[ERROR] Maximum number of errors (%d) reached; failing with: %s", numErrors, err)
return err
}
log.Printf("[ERROR] %d error received, will ignore and retry: %s", errCode.Actual, err)
time.Sleep(2 * time.Second)
continue
}
return err
}
if image.Status == "active" {
return nil
}
log.Printf("Waiting for image creation status: %s", image.Status)
time.Sleep(2 * time.Second)
}
}