Add registry name to fields returned by varlink image search

Cockpit team wants to list the registry name where the image was
found.

Also fix up SearchImages code to check if the user specified a registry
in his call to use that rather then all the registries, This matches
podman search command.

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

API.md

@@ -107,7 +107,7 @@ in the [API.md](https://github.com/containers/libpod/blob/master/API.md) file in
 
 [func RestartPod(name: string) string](#RestartPod)
 
-[func SearchImages(quety: string, limit: int, tlsVerify: ?bool) ImageSearchResult](#SearchImages)
+[func SearchImages(query: string, limit: int, tlsVerify: ?bool) ImageSearchResult](#SearchImages)
 
 [func SendFile(type: string, length: int) string](#SendFile)
 
@@ -780,8 +780,9 @@ ReceiveFile allows the host to send a remote client a file
 <div style="background-color: #E8E8E8; padding: 15px; margin: 10px; border-radius: 10px;">
 
 method RemoveContainer(name: [string](https://godoc.org/builtin#string), force: [bool](https://godoc.org/builtin#bool), removeVolumes: [bool](https://godoc.org/builtin#bool)) [string](https://godoc.org/builtin#string)</div>
-RemoveContainer takes requires the name or ID of container as well a boolean representing whether a running
-container can be stopped and removed.  It also takes a flag on whether or not to remove builtin volumes. Upon successful removal of the container, its ID is returned.  If the
+RemoveContainer requires the name or ID of container as well a boolean representing whether a running container can be stopped and removed, and a boolean
+indicating whether to remove builtin volumes. Upon successful removal of the
+container, its ID is returned.  If the
 container cannot be found by name or ID, a [ContainerNotFound](#ContainerNotFound) error will be returned.
 #### Example
 ~~~
@@ -1423,6 +1424,8 @@ is_official [bool](https://godoc.org/builtin#bool)
 
 is_automated [bool](https://godoc.org/builtin#bool)
 
+registry [string](https://godoc.org/builtin#string)
+
 name [string](https://godoc.org/builtin#string)
 
 star_count [int](https://godoc.org/builtin#int)

cmd/podman/search.go

@@ -12,7 +12,6 @@ import (
 	"github.com/containers/libpod/cmd/podman/formats"
 	"github.com/containers/libpod/libpod/common"
 	sysreg "github.com/containers/libpod/pkg/registries"
-	"github.com/docker/distribution/reference"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
@@ -88,7 +87,7 @@ func searchCmd(c *cliconfig.SearchValues) error {
 	term := args[0]
 
 	// Check if search term has a registry in it
-	registry, err := getRegistry(term)
+	registry, err := sysreg.GetRegistry(term)
 	if err != nil {
 		return errors.Wrapf(err, "error getting registry from %q", term)
 	}
@@ -301,16 +300,3 @@ func matchesOfficialFilter(filter searchFilterParams, result docker.SearchResult
 	}
 	return true
 }
-
-func getRegistry(image string) (string, error) {
-	// It is possible to only have the registry name in the format "myregistry/"
-	// if so, just trim the "/" from the end and return the registry name
-	if strings.HasSuffix(image, "/") {
-		return strings.TrimSuffix(image, "/"), nil
-	}
-	imgRef, err := reference.Parse(image)
-	if err != nil {
-		return "", err
-	}
-	return reference.Domain(imgRef.(reference.Named)), nil
-}

cmd/podman/varlink/io.podman.varlink

@@ -67,6 +67,7 @@ type ImageSearchResult (
     description: string,
     is_official: bool,
     is_automated: bool,
+    registry: string,
     name: string,
     star_count: int
 )
@@ -600,8 +601,9 @@ method GetAttachSockets(name: string) -> (sockets: Sockets)
 # a [ContainerNotFound](#ContainerNotFound) error is returned.
 method WaitContainer(name: string) -> (exitcode: int)
 
-# RemoveContainer takes requires the name or ID of container as well a boolean representing whether a running and a boolean indicating whether to remove builtin volumes
-# container can be stopped and removed.  Upon successful removal of the container, its ID is returned.  If the
+# RemoveContainer requires the name or ID of container as well a boolean representing whether a running container can be stopped and removed, and a boolean
+# indicating whether to remove builtin volumes. Upon successful removal of the
+# container, its ID is returned.  If the
 # container cannot be found by name or ID, a [ContainerNotFound](#ContainerNotFound) error will be returned.
 # #### Example
 # ~~~

pkg/registries/registries.go

@@ -3,10 +3,12 @@ package registries
 import (
 	"os"
 	"path/filepath"
+	"strings"
 
 	"github.com/containers/image/pkg/sysregistries"
 	"github.com/containers/image/types"
 	"github.com/containers/libpod/pkg/rootless"
+	"github.com/docker/distribution/reference"
 	"github.com/pkg/errors"
 )
 
@@ -49,3 +51,17 @@ func GetInsecureRegistries() ([]string, error) {
 	}
 	return registries, nil
 }
+
+// GetRegistry returns the registry name from a string if specified
+func GetRegistry(image string) (string, error) {
+	// It is possible to only have the registry name in the format "myregistry/"
+	// if so, just trim the "/" from the end and return the registry name
+	if strings.HasSuffix(image, "/") {
+		return strings.TrimSuffix(image, "/"), nil
+	}
+	imgRef, err := reference.Parse(image)
+	if err != nil {
+		return "", err
+	}
+	return reference.Domain(imgRef.(reference.Named)), nil
+}

pkg/varlinkapi/images.go

@@ -446,9 +446,21 @@ func (i *LibpodAPI) SearchImages(call iopodman.VarlinkCall, query string, limit
 	if tlsVerify != nil {
 		sc.DockerInsecureSkipTLSVerify = types.NewOptionalBool(!*tlsVerify)
 	}
-	registries, err := sysreg.GetRegistries()
+	var registries []string
+
+	// Check if search query has a registry in it
+	registry, err := sysreg.GetRegistry(query)
 	if err != nil {
-		return call.ReplyErrorOccurred(fmt.Sprintf("unable to get system registries: %q", err))
+		return call.ReplyErrorOccurred(fmt.Sprintf("error getting registry from %q: %q", query, err))
+	}
+	if registry != "" {
+		registries = append(registries, registry)
+		query = query[len(registry)+1:]
+	} else {
+		registries, err = sysreg.GetRegistries()
+		if err != nil {
+			return call.ReplyErrorOccurred(fmt.Sprintf("unable to get system registries: %q", err))
+		}
 	}
 	var imageResults []iopodman.ImageSearchResult
 	for _, reg := range registries {
@@ -468,6 +480,7 @@ func (i *LibpodAPI) SearchImages(call iopodman.VarlinkCall, query string, limit
 		}
 		for _, result := range results {
 			i := iopodman.ImageSearchResult{
+				Registry:     reg,
 				Description:  result.Description,
 				Is_official:  result.IsOfficial,
 				Is_automated: result.IsAutomated,