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// +build remoteclient
package adapter
import (
"context"
"fmt"
"io"
"strings"
"time"
"github.com/containers/image/types"
iopodman "github.com/containers/libpod/cmd/podman/varlink"
"github.com/containers/libpod/libpod/image"
digest "github.com/opencontainers/go-digest"
"github.com/urfave/cli"
"github.com/varlink/go/varlink"
)
// ImageRuntime is wrapper for image runtime
type RemoteImageRuntime struct{}
// RemoteRuntime describes a wrapper runtime struct
type RemoteRuntime struct {
}
// LocalRuntime describes a typical libpod runtime
type LocalRuntime struct {
Runtime *RemoteRuntime
Remote bool
Conn *varlink.Connection
}
// GetRuntime returns a LocalRuntime struct with the actual runtime embedded in it
func GetRuntime(c *cli.Context) (*LocalRuntime, error) {
runtime := RemoteRuntime{}
conn, err := runtime.Connect()
if err != nil {
return nil, err
}
return &LocalRuntime{
Runtime: &runtime,
Remote: true,
Conn: conn,
}, nil
}
// Shutdown is a bogus wrapper for compat with the libpod runtime
func (r RemoteRuntime) Shutdown(force bool) error {
return nil
}
// ContainerImage
type ContainerImage struct {
remoteImage
}
type remoteImage struct {
ID string
Labels map[string]string
RepoTags []string
RepoDigests []string
Parent string
Size int64
Created time.Time
InputName string
Names []string
Digest digest.Digest
isParent bool
Runtime *LocalRuntime
}
// GetImages returns a slice of containerimages over a varlink connection
func (r *LocalRuntime) GetImages() ([]*ContainerImage, error) {
var newImages []*ContainerImage
images, err := iopodman.ListImages().Call(r.Conn)
if err != nil {
return nil, err
}
for _, i := range images {
name := i.Id
if len(i.RepoTags) > 1 {
name = i.RepoTags[0]
}
newImage, err := imageInListToContainerImage(i, name, r)
if err != nil {
return nil, err
}
newImages = append(newImages, newImage)
}
return newImages, nil
}
func imageInListToContainerImage(i iopodman.ImageInList, name string, runtime *LocalRuntime) (*ContainerImage, error) {
created, err := splitStringDate(i.Created)
if err != nil {
return nil, err
}
ri := remoteImage{
InputName: name,
ID: i.Id,
Labels: i.Labels,
RepoTags: i.RepoTags,
RepoDigests: i.RepoTags,
Parent: i.ParentId,
Size: i.Size,
Created: created,
Names: i.RepoTags,
isParent: i.IsParent,
Runtime: runtime,
}
return &ContainerImage{ri}, nil
}
// NewImageFromLocal returns a container image representation of a image over varlink
func (r *LocalRuntime) NewImageFromLocal(name string) (*ContainerImage, error) {
img, err := iopodman.GetImage().Call(r.Conn, name)
if err != nil {
return nil, err
}
return imageInListToContainerImage(img, name, r)
}
// LoadFromArchiveReference creates an image from a local archive
func (r *LocalRuntime) LoadFromArchiveReference(ctx context.Context, srcRef types.ImageReference, signaturePolicyPath string, writer io.Writer) ([]*ContainerImage, error) {
// TODO We need to find a way to leak certDir, creds, and the tlsverify into this function, normally this would
// come from cli options but we don't want want those in here either.
imageID, err := iopodman.PullImage().Call(r.Conn, srcRef.DockerReference().String(), "", "", signaturePolicyPath, true)
if err != nil {
return nil, err
}
newImage, err := r.NewImageFromLocal(imageID)
if err != nil {
return nil, err
}
return []*ContainerImage{newImage}, nil
}
// New calls into local storage to look for an image in local storage or to pull it
func (r *LocalRuntime) New(ctx context.Context, name, signaturePolicyPath, authfile string, writer io.Writer, dockeroptions *image.DockerRegistryOptions, signingoptions image.SigningOptions, forcePull bool) (*ContainerImage, error) {
// TODO Creds needs to be figured out here too, like above
tlsBool := dockeroptions.DockerInsecureSkipTLSVerify
// Remember SkipTlsVerify is the opposite of tlsverify
// If tlsBook is true or undefined, we do not skip
SkipTlsVerify := false
if tlsBool == types.OptionalBoolFalse {
SkipTlsVerify = true
}
imageID, err := iopodman.PullImage().Call(r.Conn, name, dockeroptions.DockerCertPath, "", signaturePolicyPath, SkipTlsVerify)
if err != nil {
return nil, err
}
newImage, err := r.NewImageFromLocal(imageID)
if err != nil {
return nil, err
}
return newImage, nil
}
func splitStringDate(d string) (time.Time, error) {
fields := strings.Fields(d)
t := fmt.Sprintf("%sT%sZ", fields[0], fields[1])
return time.ParseInLocation(time.RFC3339Nano, t, time.UTC)
}
// IsParent goes through the layers in the store and checks if i.TopLayer is
// the parent of any other layer in store. Double check that image with that
// layer exists as well.
func (ci *ContainerImage) IsParent() (bool, error) {
return ci.remoteImage.isParent, nil
}
// ID returns the image ID as a string
func (ci *ContainerImage) ID() string {
return ci.remoteImage.ID
}
// Names returns a string array of names associated with the image
func (ci *ContainerImage) Names() []string {
return ci.remoteImage.Names
}
// Created returns the time the image was created
func (ci *ContainerImage) Created() time.Time {
return ci.remoteImage.Created
}
// Size returns the size of the image
func (ci *ContainerImage) Size(ctx context.Context) (*uint64, error) {
usize := uint64(ci.remoteImage.Size)
return &usize, nil
}
// Digest returns the image's digest
func (ci *ContainerImage) Digest() digest.Digest {
return ci.remoteImage.Digest
}
// Labels returns a map of the image's labels
func (ci *ContainerImage) Labels(ctx context.Context) (map[string]string, error) {
return ci.remoteImage.Labels, nil
}
// Dangling returns a bool if the image is "dangling"
func (ci *ContainerImage) Dangling() bool {
return len(ci.Names()) == 0
}
// TagImage ...
func (ci *ContainerImage) TagImage(tag string) error {
_, err := iopodman.TagImage().Call(ci.Runtime.Conn, ci.ID(), tag)
return err
}
func (r RemoteRuntime) RemoveImage(force bool) error {
return nil
}
// RemoveImage calls varlink to remove an image
func (r *LocalRuntime) RemoveImage(ctx context.Context, img *ContainerImage, force bool) (string, error) {
return iopodman.RemoveImage().Call(r.Conn, img.InputName, force)
}
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