/
storage.go
98 lines (81 loc) · 2.33 KB
/
storage.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
package yandeximport
import (
"fmt"
"net/url"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/s3"
packersdk "github.com/hashicorp/packer-plugin-sdk/packer"
)
const defaultS3Region = "ru-central1"
const defaultStorageEndpoint = "storage.yandexcloud.net"
func newYCStorageClient(storageEndpoint, accessKey, secretKey string) (*s3.S3, error) {
var creds *credentials.Credentials
if storageEndpoint == "" {
storageEndpoint = defaultStorageEndpoint
}
s3Config := &aws.Config{
Endpoint: aws.String(storageEndpoint),
Region: aws.String(defaultS3Region),
}
switch {
case accessKey != "" && secretKey != "":
creds = credentials.NewStaticCredentials(accessKey, secretKey, "")
default:
return nil, fmt.Errorf("either access or secret key not provided")
}
s3Config.Credentials = creds
newSession, err := session.NewSession(s3Config)
if err != nil {
return nil, err
}
return s3.New(newSession), nil
}
// Get path-style S3 URL and return presigned URL
func presignUrl(s3conn *s3.S3, ui packersdk.Ui, fullUrl string) (cloudImageSource, error) {
bucket, key, err := s3URLToBucketKey(fullUrl)
if err != nil {
return nil, err
}
req, _ := s3conn.GetObjectRequest(&s3.GetObjectInput{
Bucket: aws.String(bucket),
Key: aws.String(key),
})
// Compute service allow only `https://storage.yandexcloud.net/...` URLs for Image create process
req.Config.S3ForcePathStyle = aws.Bool(true)
urlStr, _, err := req.PresignRequest(30 * time.Minute)
if err != nil {
ui.Say(fmt.Sprintf("Failed to presign url: %s", err))
return nil, err
}
return &objectSource{
urlStr,
}, nil
}
func s3URLToBucketKey(storageURL string) (bucket string, key string, err error) {
u, err := url.Parse(storageURL)
if err != nil {
return
}
if u.Scheme == "s3" {
// s3://bucket/key
bucket = u.Host
key = strings.TrimLeft(u.Path, "/")
} else if u.Scheme == "https" {
// https://***.storage.yandexcloud.net/...
if u.Host == defaultStorageEndpoint {
// No bucket name in the host part
path := strings.SplitN(u.Path, "/", 3)
bucket = path[1]
key = path[2]
} else {
// Bucket name in host
bucket = strings.TrimSuffix(u.Host, "."+defaultStorageEndpoint)
key = strings.TrimLeft(u.Path, "/")
}
}
return
}