-
Notifications
You must be signed in to change notification settings - Fork 9
/
prebuilt.go
73 lines (56 loc) · 1.87 KB
/
prebuilt.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
// Copyright 2022 Namespace Labs Inc; 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.
package oci
import (
"context"
v1 "github.com/google/go-containerregistry/pkg/v1"
"github.com/google/go-containerregistry/pkg/v1/types"
"namespacelabs.dev/foundation/internal/compute"
"namespacelabs.dev/foundation/internal/compute/cache"
"namespacelabs.dev/foundation/internal/fnerrors"
"namespacelabs.dev/foundation/std/tasks"
)
func Prebuilt(imgid ImageID, opts RegistryAccess) compute.Computable[ResolvableImage] {
return &fetchPrebuilt{imgid: imgid, opts: opts}
}
type fetchPrebuilt struct {
imgid ImageID
opts RegistryAccess // Does not affect output.
compute.DoScoped[ResolvableImage]
}
func (f *fetchPrebuilt) Action() *tasks.ActionEvent {
return tasks.Action("image.fetch").Arg("ref", f.imgid.RepoAndDigest())
}
func (f *fetchPrebuilt) Inputs() *compute.In {
return compute.Inputs().JSON("imgid", f.imgid)
}
func (f *fetchPrebuilt) Compute(ctx context.Context, _ compute.Resolved) (ResolvableImage, error) {
descriptor, err := fetchRemoteDescriptor(ctx, f.imgid.RepoAndDigest(), f.opts)
if err != nil {
return nil, err
}
switch {
case isIndexMediaType(types.MediaType(descriptor.MediaType)):
idx, err := descriptor.ImageIndex()
if err != nil {
return nil, err
}
c := compute.Cache(ctx)
if cache.IsDisabled(c) {
return rawImageIndex{idx}, nil
}
d, err := writeImageIndex(ctx, c, idx)
if err != nil {
return nil, err
}
return loadCachedResolvable(ctx, c, v1.Hash(d))
case isImageMediaType(types.MediaType(descriptor.MediaType)):
img, err := cacheAndReturn(ctx, f.imgid, f.opts)
if err != nil {
return nil, err
}
return RawAsResolvable(img), nil
}
return nil, fnerrors.InternalError("unknown media type: %v", descriptor.MediaType)
}