-
Notifications
You must be signed in to change notification settings - Fork 25
/
job.go
171 lines (143 loc) · 5.94 KB
/
job.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
/*
* Tencent is pleased to support the open source community by making TKEStack
* available.
*
* Copyright (C) 2012-2020 Tencent. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use
* this file except in compliance with the License. You may obtain a copy of the
* License at
*
* https://opensource.org/licenses/Apache-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package transfer
import (
"github.com/containers/image/v5/manifest"
"github.com/containers/image/v5/pkg/blobinfocache/memory"
"github.com/containers/image/v5/pkg/blobinfocache/none"
"github.com/pkg/errors"
"tkestack.io/image-transfer/pkg/log"
)
var (
// NoCache used to disable a blobinfocache
NoCache = none.NoCache
// Memory cache to enable a blobinfocache
Memory = memory.New()
)
// Job act as a sync action, it will pull a images from source to target
type Job struct {
Source *ImageSource
Target *ImageTarget
}
// NewJob creates a transfer job
func NewJob(source *ImageSource, target *ImageTarget) *Job {
return &Job{
Source: source,
Target: target,
}
}
// Run is the main function of a transfer job
func (j *Job) Run() error {
// get manifest from source
manifestByte, manifestType, err := j.Source.GetManifest()
if err != nil {
log.Errorf("Failed to get manifest from %s/%s:%s error: %v",
j.Source.GetRegistry(), j.Source.GetRepository(), j.Source.GetTag(), err)
return err
}
log.Infof("Get manifest from %s/%s:%s", j.Source.GetRegistry(), j.Source.GetRepository(), j.Source.GetTag())
blobInfos, err := j.Source.GetBlobInfos(manifestByte, manifestType)
if err != nil {
log.Errorf("Get blob info from %s/%s:%s error: %v",
j.Source.GetRegistry(), j.Source.GetRepository(), j.Source.GetTag(), err)
return err
}
// blob transformation
for _, blobinfo := range blobInfos {
blobExist, err := j.Target.CheckBlobExist(blobinfo)
if err != nil {
log.Errorf("Check blob %s(%v) to %s/%s:%s exist error: %v",
blobinfo.Digest, blobinfo.Size, j.Target.GetRegistry(), j.Target.GetRepository(), j.Target.GetTag(), err)
return err
}
if !blobExist {
// pull a blob from source
log.Infof("Getting blob from %s/%s:%s ing...", j.Source.GetRegistry(), j.Source.GetRepository(), j.Source.GetTag())
blob, size, err := j.Source.GetABlob(blobinfo)
if err != nil {
log.Errorf("Get blob %s(%v) from %s/%s:%s failed: %v", blobinfo.Digest,
size, j.Source.GetRegistry(), j.Source.GetRepository(), j.Source.GetTag(), err)
return err
}
log.Infof("Get a blob %s(%v) from %s/%s:%s success", blobinfo.Digest, size,
j.Source.GetRegistry(), j.Source.GetRepository(), j.Source.GetTag())
blobinfo.Size = size
// push a blob to target
log.Infof("Putting blob to %s/%s:%s ing...", j.Target.GetRegistry(), j.Target.GetRepository(), j.Target.GetTag())
if err := j.Target.PutABlob(blob, blobinfo); err != nil {
log.Errorf("Put blob %s(%v) to %s/%s:%s failed: %v", blobinfo.Digest, blobinfo.Size,
j.Target.GetRegistry(), j.Target.GetRepository(), j.Target.GetTag(), err)
if closeErr := blob.Close(); closeErr != nil {
return errors.Wrapf(err, " (close error: %v)", closeErr)
}
return err
}
log.Infof("Put blob %s(%v) to %s/%s:%s success", blobinfo.Digest, blobinfo.Size,
j.Target.GetRegistry(), j.Target.GetRepository(), j.Target.GetTag())
} else {
// print the log of ignored blob
log.Infof("Blob %s(%v) has been pushed to %s, will not be pulled", blobinfo.Digest,
blobinfo.Size, j.Target.GetRegistry()+"/"+j.Target.GetRepository())
}
}
//Push manifest list
if manifestType == manifest.DockerV2ListMediaType {
manifestSchemaListInfo, err := manifest.Schema2ListFromManifest(manifestByte)
if err != nil {
return err
}
var subManifestByte []byte
// push manifest to target
for _, manifestDescriptorElem := range manifestSchemaListInfo.Manifests {
log.Infof("handle manifest OS:%s Architecture:%s ", manifestDescriptorElem.Platform.OS,
manifestDescriptorElem.Platform.Architecture)
subManifestByte, _, err = j.Source.source.GetManifest(j.Source.ctx, &manifestDescriptorElem.Digest)
if err != nil {
log.Errorf("Get manifest %v of OS:%s Architecture:%s for manifest list error: %v",
manifestDescriptorElem.Digest, manifestDescriptorElem.Platform.OS,
manifestDescriptorElem.Platform.Architecture, err)
return err
}
if err := j.Target.PushManifest(subManifestByte); err != nil {
log.Errorf("Put manifest to %s/%s:%s error: %v", j.Target.GetRegistry(),
j.Target.GetRepository(), j.Target.GetTag(), err)
return err
}
log.Infof("Put manifest to %s/%s:%s os:%s arch:%s", j.Target.GetRegistry(), j.Target.GetRepository(),
j.Target.GetTag(), manifestDescriptorElem.Platform.OS, manifestDescriptorElem.Platform.Architecture)
}
// push manifest list to target
if err := j.Target.PushManifest(manifestByte); err != nil {
log.Errorf("Put manifestList to %s/%s:%s error: %v", j.Target.GetRegistry(),
j.Target.GetRepository(), j.Target.GetTag(), err)
return err
}
log.Infof("Put manifestList to %s/%s:%s", j.Target.GetRegistry(), j.Target.GetRepository(), j.Target.GetTag())
} else {
// push manifest to target
if err := j.Target.PushManifest(manifestByte); err != nil {
log.Errorf("Put manifest to %s/%s:%s error: %v", j.Target.GetRegistry(),
j.Target.GetRepository(), j.Target.GetTag(), err)
return err
}
log.Infof("Put manifest to %s/%s:%s", j.Target.GetRegistry(), j.Target.GetRepository(), j.Target.GetTag())
}
log.Infof("Synchronization successfully from %s/%s:%s to %s/%s:%s", j.Source.GetRegistry(), j.Source.GetRepository(),
j.Source.GetTag(), j.Target.GetRegistry(), j.Target.GetRepository(), j.Target.GetTag())
return nil
}