LCOW: Deprecate storagedriver option

Signed-off-by: John Howard <jhoward@microsoft.com>

cmd/dockerd/config.go

@@ -1,6 +1,8 @@
 package main
 
 import (
+	"runtime"
+
 	"github.com/docker/docker/daemon/config"
 	"github.com/docker/docker/opts"
 	"github.com/spf13/pflag"
@@ -33,7 +35,12 @@ func installCommonConfigFlags(conf *config.Config, flags *pflag.FlagSet) {
 
 	flags.BoolVarP(&conf.AutoRestart, "restart", "r", true, "--restart on the daemon has been deprecated in favor of --restart policies on docker run")
 	flags.MarkDeprecated("restart", "Please use a restart policy on docker run")
-	flags.StringVarP(&conf.GraphDriver, "storage-driver", "s", "", "Storage driver to use")
+
+	// Windows doesn't support setting the storage driver - there is no choice as to which ones to use.
+	if runtime.GOOS != "windows" {
+		flags.StringVarP(&conf.GraphDriver, "storage-driver", "s", "", "Storage driver to use")
+	}
+
 	flags.IntVar(&conf.Mtu, "mtu", 0, "Set the containers network MTU")
 	flags.BoolVar(&conf.RawLogs, "raw-logs", false, "Full timestamps without ANSI coloring")
 	flags.Var(opts.NewListOptsRef(&conf.DNS, opts.ValidateIPAddress), "dns", "DNS server to use")