Make sure playbook_dir variable is an absolute path

Fixes #8317

lib/ansible/playbook/__init__.py

@@ -171,7 +171,7 @@ class PlayBook(object):
         self.inventory.set_playbook_basedir(self.basedir)
 
         vars = extra_vars.copy()
-        vars['playbook_dir'] = self.basedir
+        vars['playbook_dir'] = os.path.abspath(self.basedir)
         if self.inventory.basedir() is not None:
             vars['inventory_dir'] = self.inventory.basedir()
 

lib/ansible/playbook/play.py

@@ -77,6 +77,7 @@ class Play(object):
             self.tags = []
 
         # make sure we have some special internal variables set
+        self.vars['playbook_dir'] = os.path.abspath(self.basedir)
         if self.playbook.inventory.basedir() is not None:
             self.vars['inventory_dir'] = self.playbook.inventory.basedir()
         if self.playbook.inventory.src() is not None:
@@ -153,7 +154,6 @@ class Play(object):
 
         load_vars = {}
         load_vars['role_names'] = ds.get('role_names',[])
-        load_vars['playbook_dir'] = self.basedir
 
         self._tasks      = self._load_tasks(self._ds.get('tasks', []), load_vars)
         self._handlers   = self._load_tasks(self._ds.get('handlers', []), load_vars)

lib/ansible/runner/__init__.py

@@ -612,7 +612,7 @@ class Runner(object):
         inject['vars']        = self.module_vars
         inject['defaults']    = self.default_vars
         inject['environment'] = self.environment
-        inject['playbook_dir'] = self.basedir
+        inject['playbook_dir'] = os.path.abspath(self.basedir)
 
         # template this one is available, callbacks use this
         delegate_to = self.module_vars.get('delegate_to')