NewRawExecDriver returns a new DriverPlugin implementation.

PluginLoader maps pre-0.9 client driver options to post-0.9 plugin options.

PluginConfig is the rawexec factory function registered in the plugin catalog.

PluginID is the rawexec plugin metadata registered in the plugin catalog.

Config is the driver configuration set by the SetConfig RPC call.

Driver is a privileged version of the exec driver.

TaskConfig is the driver configuration of a task within a job.

TaskState is the state which is encoded in the handle returned in StartTask.