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
|
package build
import (
"context"
"encoding/json"
"io"
"testing"
"github.com/docker/docker/api/types"
"github.com/docker/docker/client"
"github.com/docker/docker/pkg/jsonmessage"
"github.com/docker/docker/testutil/fakecontext"
"gotest.tools/v3/assert"
)
// Do builds an image from the given context and returns the image ID.
func Do(ctx context.Context, t *testing.T, client client.APIClient, buildCtx *fakecontext.Fake) string {
resp, err := client.ImageBuild(ctx, buildCtx.AsTarReader(t), types.ImageBuildOptions{})
if resp.Body != nil {
defer resp.Body.Close()
}
assert.NilError(t, err)
img := GetImageIDFromBody(t, resp.Body)
t.Cleanup(func() {
client.ImageRemove(ctx, img, types.ImageRemoveOptions{Force: true})
})
return img
}
// GetImageIDFromBody reads the image ID from the build response body.
func GetImageIDFromBody(t *testing.T, body io.Reader) string {
var (
jm jsonmessage.JSONMessage
br types.BuildResult
dec = json.NewDecoder(body)
)
for {
err := dec.Decode(&jm)
if err == io.EOF {
break
}
assert.NilError(t, err)
if jm.Aux == nil {
continue
}
assert.NilError(t, json.Unmarshal(*jm.Aux, &br))
assert.Assert(t, br.ID != "", "could not read image ID from build output")
break
}
io.Copy(io.Discard, body)
return br.ID
}
|
