add more documentation for new function

doc/ref/executors/all/index.rst

@@ -11,5 +11,6 @@ executors modules
     :template: autosummary.rst.tmpl
 
     direct_call
+    docker
     splay
     sudo

doc/ref/executors/all/salt.executors.docker.rst

@@ -0,0 +1,6 @@
+salt.executors.docker module
+============================
+
+.. automodule:: salt.executors.docker
+    :members:
+

doc/ref/executors/index.rst

@@ -83,3 +83,7 @@ option set by commandline or API ``data.get('executor_opts',
 {}).get('splaytime')`` should be used. So if an option is safe and must be
 accessible by user executor should check it in both places, but if an option is
 unsafe it should be read from the only config ignoring the passed request data.
+
+There is also a function named ``all_missing_func`` which the name of the
+``func`` is passed, which can be used to verify if the command should still be
+run, even if it is not loaded in minion_mods.

salt/executors/docker.py

@@ -36,5 +36,11 @@ def execute(opts, data, func, args, kwargs):
     return __salt__['docker.call'](opts['proxy']['name'], data['fun'], *args, **kwargs)
 
 
-def allow_missing_funcs():
+def allow_missing_func(function):  # pylint: disable=unused-argument
+    '''
+    Allow all calls to be passed through to docker container.
+
+    The docker call will use direct_call, which will return back if the module
+    was unable to be run.
+    '''
     return True

salt/minion.py

@@ -1569,9 +1569,9 @@ class Minion(MinionBase):
                     getattr(minion_instance, 'module_executors', []) or \
                     opts.get('module_executors', ['direct_call'])
         allow_missing_funcs = any([
-            minion_instance.executors['{0}.allow_missing_funcs'.format(executor)]()
+            minion_instance.executors['{0}.allow_missing_func'.format(executor)](function_name)
             for executor in executors
-            if '{0}.allow_missing_funcs' in minion_instance.executors
+            if '{0}.allow_missing_func' in minion_instance.executors
         ])
         if function_name in minion_instance.functions or allow_missing_funcs is True:
             try: