Add authorization plugins to docker info

Signed-off-by: Vincent Demeester <vincent@sbr.pm>

api/client/info.go

@@ -2,6 +2,7 @@ package client
 
 import (
 	"fmt"
+	"strings"
 
 	Cli "github.com/docker/docker/cli"
 	"github.com/docker/docker/pkg/ioutils"
@@ -43,16 +44,18 @@ func (cli *DockerCli) CmdInfo(args ...string) error {
 
 	fmt.Fprintf(cli.out, "Plugins: \n")
 	fmt.Fprintf(cli.out, " Volume:")
-	for _, driver := range info.Plugins.Volume {
-		fmt.Fprintf(cli.out, " %s", driver)
-	}
+	fmt.Fprintf(cli.out, " %s", strings.Join(info.Plugins.Volume, " "))
 	fmt.Fprintf(cli.out, "\n")
 	fmt.Fprintf(cli.out, " Network:")
-	for _, driver := range info.Plugins.Network {
-		fmt.Fprintf(cli.out, " %s", driver)
-	}
+	fmt.Fprintf(cli.out, " %s", strings.Join(info.Plugins.Network, " "))
 	fmt.Fprintf(cli.out, "\n")
 
+	if len(info.Plugins.Authorization) != 0 {
+		fmt.Fprintf(cli.out, " Authorization:")
+		fmt.Fprintf(cli.out, " %s", strings.Join(info.Plugins.Authorization, " "))
+		fmt.Fprintf(cli.out, "\n")
+	}
+
 	ioutils.FprintfIfNotEmpty(cli.out, "Kernel Version: %s\n", info.KernelVersion)
 	ioutils.FprintfIfNotEmpty(cli.out, "Operating System: %s\n", info.OperatingSystem)
 	ioutils.FprintfIfNotEmpty(cli.out, "OSType: %s\n", info.OSType)

api/types/types.go

@@ -243,6 +243,8 @@ type PluginsInfo struct {
 	Volume []string
 	// List of Network plugins registered
 	Network []string
+	// List of Authorization plugins registered
+	Authorization []string
 }
 
 // ExecStartCheck is a temp struct used by execStart

daemon/info.go

@@ -142,9 +142,17 @@ func (daemon *Daemon) showPluginsInfo() types.PluginsInfo {
 		pluginsInfo.Network = append(pluginsInfo.Network, nd)
 	}
 
+	pluginsInfo.Authorization = daemon.GetAuthorizationPluginsList()
+
 	return pluginsInfo
 }
 
+// GetAuthorizationPluginsList returns the list of plugins drivers
+// registered for authorization.
+func (daemon *Daemon) GetAuthorizationPluginsList() []string {
+	return daemon.configStore.AuthZPlugins
+}
+
 // The uppercase and the lowercase are available for the proxy settings.
 // See the Go specification for details on these variables. https://golang.org/pkg/net/http/
 func getProxyEnv(key string) string {