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 images
import (
"context"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"os"
"strconv"
"github.com/containers/podman/v3/pkg/auth"
"github.com/containers/podman/v3/pkg/bindings"
"github.com/containers/podman/v3/pkg/domain/entities"
"github.com/containers/podman/v3/pkg/errorhandling"
"github.com/pkg/errors"
)
// Pull is the binding for libpod's v2 endpoints for pulling images. Note that
// `rawImage` must be a reference to a registry (i.e., of docker transport or be
// normalized to one). Other transports are rejected as they do not make sense
// in a remote context. Progress reported on stderr
func Pull(ctx context.Context, rawImage string, options *PullOptions) ([]string, error) {
if options == nil {
options = new(PullOptions)
}
conn, err := bindings.GetClient(ctx)
if err != nil {
return nil, err
}
params, err := options.ToParams()
if err != nil {
return nil, err
}
params.Set("reference", rawImage)
if options.SkipTLSVerify != nil {
params.Del("SkipTLSVerify")
// Note: we have to verify if skipped is false.
params.Set("tlsVerify", strconv.FormatBool(!options.GetSkipTLSVerify()))
}
// TODO: have a global system context we can pass around (1st argument)
header, err := auth.Header(nil, auth.XRegistryAuthHeader, options.GetAuthfile(), options.GetUsername(), options.GetPassword())
if err != nil {
return nil, err
}
response, err := conn.DoRequest(nil, http.MethodPost, "/images/pull", params, header)
if err != nil {
return nil, err
}
defer response.Body.Close()
if !response.IsSuccess() {
return nil, response.Process(err)
}
// Historically pull writes status to stderr
stderr := io.Writer(os.Stderr)
if options.GetQuiet() {
stderr = ioutil.Discard
}
dec := json.NewDecoder(response.Body)
var images []string
var pullErrors []error
for {
var report entities.ImagePullReport
if err := dec.Decode(&report); err != nil {
if errors.Is(err, io.EOF) {
break
}
report.Error = err.Error() + "\n"
}
select {
case <-response.Request.Context().Done():
break
default:
// non-blocking select
}
switch {
case report.Stream != "":
fmt.Fprint(stderr, report.Stream)
case report.Error != "":
pullErrors = append(pullErrors, errors.New(report.Error))
case len(report.Images) > 0:
images = report.Images
case report.ID != "":
default:
return images, errors.Errorf("failed to parse pull results stream, unexpected input: %v", report)
}
}
return images, errorhandling.JoinErrors(pullErrors)
}
|
