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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
package schema2
import (
"context"
"reflect"
"testing"
"github.com/docker/distribution"
"github.com/opencontainers/go-digest"
)
type mockBlobService struct {
descriptors map[digest.Digest]distribution.Descriptor
}
func (bs *mockBlobService) Stat(ctx context.Context, dgst digest.Digest) (distribution.Descriptor, error) {
if descriptor, ok := bs.descriptors[dgst]; ok {
return descriptor, nil
}
return distribution.Descriptor{}, distribution.ErrBlobUnknown
}
func (bs *mockBlobService) Get(ctx context.Context, dgst digest.Digest) ([]byte, error) {
panic("not implemented")
}
func (bs *mockBlobService) Open(ctx context.Context, dgst digest.Digest) (distribution.ReadSeekCloser, error) {
panic("not implemented")
}
func (bs *mockBlobService) Put(ctx context.Context, mediaType string, p []byte) (distribution.Descriptor, error) {
d := distribution.Descriptor{
Digest: digest.FromBytes(p),
Size: int64(len(p)),
MediaType: "application/octet-stream",
}
bs.descriptors[d.Digest] = d
return d, nil
}
func (bs *mockBlobService) Create(ctx context.Context, options ...distribution.BlobCreateOption) (distribution.BlobWriter, error) {
panic("not implemented")
}
func (bs *mockBlobService) Resume(ctx context.Context, id string) (distribution.BlobWriter, error) {
panic("not implemented")
}
func TestBuilder(t *testing.T) {
imgJSON := []byte(`{
"architecture": "amd64",
"config": {
"AttachStderr": false,
"AttachStdin": false,
"AttachStdout": false,
"Cmd": [
"/bin/sh",
"-c",
"echo hi"
],
"Domainname": "",
"Entrypoint": null,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"derived=true",
"asdf=true"
],
"Hostname": "23304fc829f9",
"Image": "sha256:4ab15c48b859c2920dd5224f92aabcd39a52794c5b3cf088fb3bbb438756c246",
"Labels": {},
"OnBuild": [],
"OpenStdin": false,
"StdinOnce": false,
"Tty": false,
"User": "",
"Volumes": null,
"WorkingDir": ""
},
"container": "e91032eb0403a61bfe085ff5a5a48e3659e5a6deae9f4d678daa2ae399d5a001",
"container_config": {
"AttachStderr": false,
"AttachStdin": false,
"AttachStdout": false,
"Cmd": [
"/bin/sh",
"-c",
"#(nop) CMD [\"/bin/sh\" \"-c\" \"echo hi\"]"
],
"Domainname": "",
"Entrypoint": null,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"derived=true",
"asdf=true"
],
"Hostname": "23304fc829f9",
"Image": "sha256:4ab15c48b859c2920dd5224f92aabcd39a52794c5b3cf088fb3bbb438756c246",
"Labels": {},
"OnBuild": [],
"OpenStdin": false,
"StdinOnce": false,
"Tty": false,
"User": "",
"Volumes": null,
"WorkingDir": ""
},
"created": "2015-11-04T23:06:32.365666163Z",
"docker_version": "1.9.0-dev",
"history": [
{
"created": "2015-10-31T22:22:54.690851953Z",
"created_by": "/bin/sh -c #(nop) ADD file:a3bc1e842b69636f9df5256c49c5374fb4eef1e281fe3f282c65fb853ee171c5 in /"
},
{
"created": "2015-10-31T22:22:55.613815829Z",
"created_by": "/bin/sh -c #(nop) CMD [\"sh\"]"
},
{
"created": "2015-11-04T23:06:30.934316144Z",
"created_by": "/bin/sh -c #(nop) ENV derived=true",
"empty_layer": true
},
{
"created": "2015-11-04T23:06:31.192097572Z",
"created_by": "/bin/sh -c #(nop) ENV asdf=true",
"empty_layer": true
},
{
"created": "2015-11-04T23:06:32.083868454Z",
"created_by": "/bin/sh -c dd if=/dev/zero of=/file bs=1024 count=1024"
},
{
"created": "2015-11-04T23:06:32.365666163Z",
"created_by": "/bin/sh -c #(nop) CMD [\"/bin/sh\" \"-c\" \"echo hi\"]",
"empty_layer": true
}
],
"os": "linux",
"rootfs": {
"diff_ids": [
"sha256:c6f988f4874bb0add23a778f753c65efe992244e148a1d2ec2a8b664fb66bbd1",
"sha256:5f70bf18a086007016e948b04aed3b82103a36bea41755b6cddfaf10ace3c6ef",
"sha256:13f53e08df5a220ab6d13c58b2bf83a59cbdc2e04d0a3f041ddf4b0ba4112d49"
],
"type": "layers"
}
}`)
configDigest := digest.FromBytes(imgJSON)
descriptors := []distribution.Descriptor{
{
Digest: digest.Digest("sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"),
Size: 5312,
MediaType: MediaTypeLayer,
},
{
Digest: digest.Digest("sha256:86e0e091d0da6bde2456dbb48306f3956bbeb2eae1b5b9a43045843f69fe4aaa"),
Size: 235231,
MediaType: MediaTypeLayer,
},
{
Digest: digest.Digest("sha256:b4ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"),
Size: 639152,
MediaType: MediaTypeLayer,
},
}
bs := &mockBlobService{descriptors: make(map[digest.Digest]distribution.Descriptor)}
builder := NewManifestBuilder(bs, MediaTypeImageConfig, imgJSON)
for _, d := range descriptors {
if err := builder.AppendReference(d); err != nil {
t.Fatalf("AppendReference returned error: %v", err)
}
}
built, err := builder.Build(context.Background())
if err != nil {
t.Fatalf("Build returned error: %v", err)
}
// Check that the config was put in the blob store
_, err = bs.Stat(context.Background(), configDigest)
if err != nil {
t.Fatal("config was not put in the blob store")
}
manifest := built.(*DeserializedManifest).Manifest
if manifest.Versioned.SchemaVersion != 2 {
t.Fatal("SchemaVersion != 2")
}
target := manifest.Target()
if target.Digest != configDigest {
t.Fatalf("unexpected digest in target: %s", target.Digest.String())
}
if target.MediaType != MediaTypeImageConfig {
t.Fatalf("unexpected media type in target: %s", target.MediaType)
}
if target.Size != 3153 {
t.Fatalf("unexpected size in target: %d", target.Size)
}
references := manifest.References()
expected := append([]distribution.Descriptor{manifest.Target()}, descriptors...)
if !reflect.DeepEqual(references, expected) {
t.Fatal("References() does not match the descriptors added")
}
}
|
