Config return the imagespec.ImageConfig for the given source. Resolves to the architecture, if necessary.
()
| 56 | // Config return the imagespec.ImageConfig for the given source. Resolves to the |
| 57 | // architecture, if necessary. |
| 58 | func (c ImageSource) Config() (imagespec.ImageConfig, error) { |
| 59 | imageName := c.ref.String() |
| 60 | image, err := c.provider.findImage(imageName, *c.platform) |
| 61 | if err != nil { |
| 62 | return imagespec.ImageConfig{}, err |
| 63 | } |
| 64 | |
| 65 | configFile, err := image.ConfigFile() |
| 66 | if err != nil { |
| 67 | return imagespec.ImageConfig{}, fmt.Errorf("unable to get image OCI ConfigFile: %v", err) |
| 68 | } |
| 69 | // because the other parts expect OCI go-spec structs, not google/go-containerregistry structs, |
| 70 | // the easiest way to do this is to convert via json |
| 71 | configJSON, err := json.Marshal(configFile.Config) |
| 72 | if err != nil { |
| 73 | return imagespec.ImageConfig{}, fmt.Errorf("unable to convert image config to json: %v", err) |
| 74 | } |
| 75 | var ociConfig imagespec.ImageConfig |
| 76 | err = json.Unmarshal(configJSON, &ociConfig) |
| 77 | return ociConfig, err |
| 78 | } |
| 79 | |
| 80 | // TarReader return an io.ReadCloser to read the filesystem contents of the image, |
| 81 | // as resolved to the provided architecture. |