Correctly set path and fullpath for template vars (ansible#73924)

* Correctly set path and fullpath for template vars

 don't expect path to always be full path
 also added exception/tb on action fail

(cherry picked from commit 22330dd)

changelogs/fragments/template_temp_vars_fix.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - Correctly set template_path and template_fullpath for usage in template lookup and action plugins.

lib/ansible/errors/__init__.py

@@ -20,6 +20,7 @@
 __metaclass__ = type
 
 import re
+import traceback
 
 from ansible.errors.yaml_strings import (
     YAML_COMMON_DICT_ERROR,
@@ -320,7 +321,7 @@ class AnsibleActionFail(AnsibleAction):
     def __init__(self, message="", obj=None, show_content=True, suppress_extended_error=False, orig_exc=None, result=None):
         super(AnsibleActionFail, self).__init__(message=message, obj=obj, show_content=show_content,
                                                 suppress_extended_error=suppress_extended_error, orig_exc=orig_exc, result=result)
-        self.result.update({'failed': True, 'msg': message})
+        self.result.update({'failed': True, 'msg': message, 'exception': traceback.format_exc()})
 
 
 class _AnsibleActionDone(AnsibleAction):

lib/ansible/plugins/action/template.py

@@ -129,7 +129,7 @@ def run(self, tmp=None, task_vars=None):
 
                 # add ansible 'template' vars
                 temp_vars = task_vars.copy()
-                temp_vars.update(generate_ansible_template_vars(source, dest))
+                temp_vars.update(generate_ansible_template_vars(self._task.args.get('src', None), source, dest))
 
                 with self._templar.set_temporary_context(searchpath=searchpath, newline_sequence=newline_sequence,
                                                          block_start_string=block_start_string, block_end_string=block_end_string,

lib/ansible/plugins/lookup/template.py

@@ -97,7 +97,7 @@ def run(self, terms, variables, **kwargs):
                 # plus anything passed to the lookup with the template_vars=
                 # argument.
                 vars = deepcopy(variables)
-                vars.update(generate_ansible_template_vars(lookupfile))
+                vars.update(generate_ansible_template_vars(term, lookupfile))
                 vars.update(lookup_template_vars)
 
                 # do the templating

lib/ansible/template/__init__.py

@@ -99,8 +99,13 @@
 RANGE_TYPE = type(range(0))
 
 
-def generate_ansible_template_vars(path, dest_path=None):
-    b_path = to_bytes(path)
+def generate_ansible_template_vars(path, fullpath=None, dest_path=None):
+
+    if fullpath is None:
+        b_path = to_bytes(path)
+    else:
+        b_path = to_bytes(fullpath)
+
     try:
         template_uid = pwd.getpwuid(os.stat(b_path).st_uid).pw_name
     except (KeyError, TypeError):
@@ -111,11 +116,15 @@ def generate_ansible_template_vars(path, dest_path=None):
         'template_path': path,
         'template_mtime': datetime.datetime.fromtimestamp(os.path.getmtime(b_path)),
         'template_uid': to_text(template_uid),
-        'template_fullpath': os.path.abspath(path),
         'template_run_date': datetime.datetime.now(),
         'template_destpath': to_native(dest_path) if dest_path else None,
     }
 
+    if fullpath is None:
+        temp_vars['template_fullpath'] = os.path.abspath(path)
+    else:
+        temp_vars['template_fullpath'] = fullpath
+
     managed_default = C.DEFAULT_MANAGED_STR
     managed_str = managed_default.format(
         host=temp_vars['template_host'],