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
|
// Copyright (c) 2023, Sylabs Inc. All rights reserved.
// This software is licensed under a 3-clause BSD license. Please consult the
// LICENSE.md file distributed with the sources of this project regarding your
// rights to use or distribute this software.
package library
import (
"fmt"
"net/url"
"strings"
"github.com/containers/image/v5/types"
scslibrary "github.com/sylabs/scs-library-client/client"
"github.com/sylabs/singularity/v4/internal/pkg/remote/endpoint"
"github.com/sylabs/singularity/v4/pkg/sylog"
)
// libraryRegistry holds information necessary to interact with an OCI registry
// backing a library.
type libraryRegistry struct {
library string
registry string
ud *userData
}
// newLibraryRegisty retrieves URI and authentication information for the
// backing registry of the library associated with endpoint ep.
func newLibraryRegistry(ep *endpoint.Config, LibraryConfig *scslibrary.Config) (*libraryRegistry, error) {
epLibraryURI, err := ep.GetServiceURI(endpoint.Library)
if err != nil {
return nil, err
}
if LibraryConfig.BaseURL != epLibraryURI {
return nil, fmt.Errorf("OCI-SIF push/pull to/from location other than current remote is not supported")
}
sylog.Debugf("Finding OCI registry URI")
registryURI, err := ep.RegistryURI()
if err != nil {
return nil, err
}
ru, err := url.Parse(registryURI)
if err != nil {
return nil, err
}
registry := strings.TrimSuffix(ru.Host+ru.Path, "/")
lr := libraryRegistry{
library: LibraryConfig.BaseURL,
registry: registry,
}
if ep.Token != "" {
sylog.Debugf("Fetching OCI registry token")
ud, err := getUserData(LibraryConfig)
if err != nil {
return nil, err
}
lr.ud = ud
}
return &lr, nil
}
// convertRef converts the provided library ref into an OCI reference referring
// to the library's backing OCI registry.
func (lr *libraryRegistry) convertRef(libraryRef scslibrary.Ref) (string, error) {
if libraryRef.Host != "" {
return "", fmt.Errorf("push to location other than current remote is not supported")
}
ref := fmt.Sprintf("docker://%s/%s", lr.registry, libraryRef.Path)
if len(libraryRef.Tags) > 1 {
return "", fmt.Errorf("cannot push/pull with more than one tag")
}
if len(libraryRef.Tags) > 0 {
ref = ref + ":" + libraryRef.Tags[0]
}
return ref, nil
}
// authConfig returns a DockerAuthConfig with current token to authenticate
// against the library's backing OCI registry, if logged in - nil otherwise.
func (lr *libraryRegistry) authConfig() *types.DockerAuthConfig {
if lr.ud == nil {
return nil
}
return &types.DockerAuthConfig{
Username: lr.ud.Username,
Password: lr.ud.OidcMeta.Secret,
}
}
|
