fix(container/network): recreate container changes static IP [EE-5448] (#8960)

Co-authored-by: Chaim Lev-Ari <chaim.levi-ari@portainer.io>

api/docker/images/image.go

@@ -0,0 +1,182 @@
+package images
+
+import (
+	"bytes"
+	"fmt"
+	"path/filepath"
+	"strings"
+	"text/template"
+
+	"github.com/docker/docker/api/types"
+
+	"github.com/containers/image/v5/docker/reference"
+	"github.com/opencontainers/go-digest"
+	"github.com/pkg/errors"
+)
+
+type ImageID string
+
+// Image holds information about an image.
+type Image struct {
+	// Domain is the registry host of this image
+	Domain string
+	// Path may include username like portainer/portainer-ee, no Tag or Digest
+	Path    string
+	Tag     string
+	Digest  digest.Digest
+	HubLink string
+	named   reference.Named
+	opts    ParseImageOptions
+}
+
+// ParseImageOptions holds image options for parsing.
+type ParseImageOptions struct {
+	Name   string
+	HubTpl string
+}
+
+// Name returns the full name representation of an image but no Tag or Digest.
+func (i *Image) Name() string {
+	return i.named.Name()
+}
+
+// FullName return the real full name may include Tag or Digest of the image, Tag first.
+func (i *Image) FullName() string {
+	if i.Tag == "" {
+		return fmt.Sprintf("%s@%s", i.Name(), i.Digest)
+	}
+	return fmt.Sprintf("%s:%s", i.Name(), i.Tag)
+}
+
+// String returns the string representation of an image, including Tag and Digest if existed.
+func (i *Image) String() string {
+	return i.named.String()
+}
+
+// Reference returns either the digest if it is non-empty or the tag for the image.
+func (i *Image) Reference() string {
+	if len(i.Digest.String()) > 1 {
+		return i.Digest.String()
+	}
+
+	return i.Tag
+}
+
+// WithDigest sets the digest for an image.
+func (i *Image) WithDigest(digest digest.Digest) (err error) {
+	i.Digest = digest
+	i.named, err = reference.WithDigest(i.named, digest)
+	return err
+}
+
+func (i *Image) WithTag(tag string) (err error) {
+	i.Tag = tag
+	i.named, err = reference.WithTag(i.named, tag)
+	return err
+}
+
+func (i *Image) trimDigest() error {
+	i.Digest = ""
+	named, err := ParseImage(ParseImageOptions{Name: i.FullName()})
+	if err != nil {
+		return err
+	}
+	i.named = &named
+	return nil
+}
+
+// ParseImage returns an Image struct with all the values filled in for a given image.
+func ParseImage(parseOpts ParseImageOptions) (Image, error) {
+	// Parse the image name and tag.
+	named, err := reference.ParseNormalizedNamed(parseOpts.Name)
+	if err != nil {
+		return Image{}, errors.Wrapf(err, "parsing image %s failed", parseOpts.Name)
+	}
+	// Add the latest lag if they did not provide one.
+	named = reference.TagNameOnly(named)
+
+	i := Image{
+		opts:   parseOpts,
+		named:  named,
+		Domain: reference.Domain(named),
+		Path:   reference.Path(named),
+	}
+
+	// Hub link
+	i.HubLink, err = i.hubLink()
+	if err != nil {
+		return Image{}, errors.Wrap(err, fmt.Sprintf("resolving hub link for image %s failed", parseOpts.Name))
+	}
+
+	// Add the tag if there was one.
+	if tagged, ok := named.(reference.Tagged); ok {
+		i.Tag = tagged.Tag()
+	}
+
+	// Add the digest if there was one.
+	if canonical, ok := named.(reference.Canonical); ok {
+		i.Digest = canonical.Digest()
+	}
+
+	return i, nil
+}
+
+func (i *Image) hubLink() (string, error) {
+	if i.opts.HubTpl != "" {
+		var out bytes.Buffer
+		tmpl, err := template.New("tmpl").
+			Option("missingkey=error").
+			Parse(i.opts.HubTpl)
+		if err != nil {
+			return "", err
+		}
+		err = tmpl.Execute(&out, i)
+		return out.String(), err
+	}
+
+	switch i.Domain {
+	case "docker.io":
+		prefix := "r"
+		path := i.Path
+		if strings.HasPrefix(i.Path, "library/") {
+			prefix = "_"
+			path = strings.Replace(i.Path, "library/", "", 1)
+		}
+		return fmt.Sprintf("https://hub.docker.com/%s/%s", prefix, path), nil
+	case "docker.bintray.io", "jfrog-docker-reg2.bintray.io":
+		return fmt.Sprintf("https://bintray.com/jfrog/reg2/%s", strings.ReplaceAll(i.Path, "/", "%3A")), nil
+	case "docker.pkg.github.com":
+		return fmt.Sprintf("https://github.com/%s/packages", filepath.ToSlash(filepath.Dir(i.Path))), nil
+	case "gcr.io":
+		return fmt.Sprintf("https://%s/%s", i.Domain, i.Path), nil
+	case "ghcr.io":
+		ref := strings.Split(i.Path, "/")
+		ghUser, ghPackage := ref[0], ref[1]
+		return fmt.Sprintf("https://github.com/users/%s/packages/container/package/%s", ghUser, ghPackage), nil
+	case "quay.io":
+		return fmt.Sprintf("https://quay.io/repository/%s", i.Path), nil
+	case "registry.access.redhat.com":
+		return fmt.Sprintf("https://access.redhat.com/containers/#/registry.access.redhat.com/%s", i.Path), nil
+	case "registry.gitlab.com":
+		return fmt.Sprintf("https://gitlab.com/%s/container_registry", i.Path), nil
+	default:
+		return "", nil
+	}
+}
+
+// IsLocalImage checks if the image has been built locally
+func IsLocalImage(image types.ImageInspect) bool {
+	return len(image.RepoDigests) == 0
+}
+
+// IsDanglingImage returns whether the given image is "dangling" which means
+// that there are no repository references to the given image and it has no
+// child images
+func IsDanglingImage(image types.ImageInspect) bool {
+	return len(image.RepoTags) == 1 && image.RepoTags[0] == "<none>:<none>" && len(image.RepoDigests) == 1 && image.RepoDigests[0] == "<none>@<none>"
+}
+
+// IsNoTagImage returns whether the given image is damaged, has no tags
+func IsNoTagImage(image types.ImageInspect) bool {
+	return len(image.RepoTags) == 0
+}