providers/docker: pty flag, not functional yet

plugins/providers/docker/action/create.rb

@@ -26,6 +26,9 @@ module VagrantPlugins
             # No ports should be shared to the host
             params[:ports] = []
 
+            # Allocate a pty if it was requested
+            params[:pty] = true if env[:run_pty]
+
             # We link to our original container
             # TODO
           end
@@ -94,6 +97,7 @@ module VagrantPlugins
             name:       container_name,
             ports:      forwarded_ports,
             privileged: @provider_config.privileged,
+            pty:        false,
             volumes:    @provider_config.volumes,
           }
         end

plugins/providers/docker/command/run.rb

@@ -9,6 +9,7 @@ module VagrantPlugins
         def execute
           options = {}
           options[:detach] = false
+          options[:pty] = false
 
           opts = OptionParser.new do |o|
             o.banner = "Usage: vagrant docker-run [command...]"
@@ -19,6 +20,10 @@ module VagrantPlugins
             o.on("--[no-]detach", "Run in the background") do |d|
               options[:detach] = d
             end
+
+            o.on("-t", "--[no-]tty", "Allocate a pty") do |t|
+              options[:pty] = t
+            end
           end
 
           # Parse out the extra args to send to SSH, which is everything
@@ -41,7 +46,9 @@ module VagrantPlugins
             machine.action(
               :run_command,
               run_command: command,
-              run_detach: options[:detach])
+              run_detach: options[:detach],
+              run_pty: options[:pty],
+            )
           end
 
           0

plugins/providers/docker/driver.rb

@@ -44,6 +44,7 @@ module VagrantPlugins
         run_cmd += volumes.map { |v| ['-v', v.to_s] }
         run_cmd += %W(--privileged) if params[:privileged]
         run_cmd += %W(-h #{params[:hostname]}) if params[:hostname]
+        run_cmd << "-t" if params[:pty]
         run_cmd += params[:extra_args] if params[:extra_args]
         run_cmd += [image, cmd]