You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
watchtower/pkg/registry/manifest/manifest.go

68 lines
1.5 KiB
Go

package manifest
import (
"fmt"
"github.com/containrrr/watchtower/pkg/registry/auth"
"github.com/containrrr/watchtower/pkg/registry/helpers"
"github.com/containrrr/watchtower/pkg/types"
ref "github.com/docker/distribution/reference"
"github.com/sirupsen/logrus"
url2 "net/url"
"strings"
)
// BuildManifestURL from raw image data
func BuildManifestURL(container types.Container) (string, error) {
normalizedName, err := ref.ParseNormalizedNamed(container.ImageName())
if err != nil {
return "", err
}
host, err := helpers.NormalizeRegistry(normalizedName.String())
img, tag := ExtractImageAndTag(strings.TrimPrefix(container.ImageName(), host+"/"))
logrus.WithFields(logrus.Fields{
"image": img,
"tag": tag,
"normalized": normalizedName,
"host": host,
}).Debug("Parsing image ref")
if err != nil {
return "", err
}
img = auth.GetScopeFromImageName(img, host)
if !strings.Contains(img, "/") {
img = "library/" + img
}
url := url2.URL{
Scheme: "https",
Host: host,
Path: fmt.Sprintf("/v2/%s/manifests/%s", img, tag),
}
return url.String(), nil
}
// ExtractImageAndTag from a concatenated string
func ExtractImageAndTag(imageName string) (string, string) {
var img string
var tag string
if strings.Contains(imageName, ":") {
parts := strings.Split(imageName, ":")
if len(parts) > 2 {
img = parts[0]
tag = strings.Join(parts[1:], ":")
} else {
img = parts[0]
tag = parts[1]
}
} else {
img = imageName
tag = "latest"
}
return img, tag
}