def test_variable_manager_precedence(self, mock_basedir): ''' Tests complex variations and combinations of get_vars() with different objects to modify the context under which variables are merged. ''' v = VariableManager() v._fact_cache = defaultdict(dict) fake_loader = DictDataLoader({ # inventory1 '/etc/ansible/inventory1': """ [group2:children] group1 [group1] host1 host_var=host_var_from_inventory_host1 [group1:vars] group_var = group_var_from_inventory_group1 [group2:vars] group_var = group_var_from_inventory_group2 """, # role defaults_only1 '/etc/ansible/roles/defaults_only1/defaults/main.yml': """ default_var: "default_var_from_defaults_only1" host_var: "host_var_from_defaults_only1" group_var: "group_var_from_defaults_only1" group_var_all: "group_var_all_from_defaults_only1" extra_var: "extra_var_from_defaults_only1" """, '/etc/ansible/roles/defaults_only1/tasks/main.yml': """ - debug: msg="here i am" """, # role defaults_only2 '/etc/ansible/roles/defaults_only2/defaults/main.yml': """ default_var: "default_var_from_defaults_only2" host_var: "host_var_from_defaults_only2" group_var: "group_var_from_defaults_only2" group_var_all: "group_var_all_from_defaults_only2" extra_var: "extra_var_from_defaults_only2" """, }) mock_basedir.return_value = './' inv1 = Inventory(loader=fake_loader, variable_manager=v, host_list='/etc/ansible/inventory1') inv1.set_playbook_basedir('./') play1 = Play.load(dict( hosts=['all'], roles=['defaults_only1', 'defaults_only2'], ), loader=fake_loader, variable_manager=v) # first we assert that the defaults as viewed as a whole are the merged results # of the defaults from each role, with the last role defined "winning" when # there is a variable naming conflict res = v.get_vars(loader=fake_loader, play=play1) self.assertEqual(res['default_var'], 'default_var_from_defaults_only2') # next, we assert that when vars are viewed from the context of a task within a # role, that task will see its own role defaults before any other role's blocks = play1.compile() task = blocks[1].block[0] res = v.get_vars(loader=fake_loader, play=play1, task=task) self.assertEqual(res['default_var'], 'default_var_from_defaults_only1') # next we assert the precendence of inventory variables v.set_inventory(inv1) h1 = inv1.get_host('host1') res = v.get_vars(loader=fake_loader, play=play1, host=h1) self.assertEqual(res['group_var'], 'group_var_from_inventory_group1') self.assertEqual(res['host_var'], 'host_var_from_inventory_host1') # next we test with group_vars/ files loaded fake_loader.push("/etc/ansible/group_vars/all", """ group_var_all: group_var_all_from_group_vars_all """) fake_loader.push("/etc/ansible/group_vars/group1", """ group_var: group_var_from_group_vars_group1 """) fake_loader.push("/etc/ansible/group_vars/group3", """ # this is a dummy, which should not be used anywhere group_var: group_var_from_group_vars_group3 """) fake_loader.push("/etc/ansible/host_vars/host1", """ host_var: host_var_from_host_vars_host1 """) fake_loader.push("group_vars/group1", """ playbook_group_var: playbook_group_var """) fake_loader.push("host_vars/host1", """ playbook_host_var: playbook_host_var """) v.add_group_vars_file("/etc/ansible/group_vars/all", loader=fake_loader) v.add_group_vars_file("/etc/ansible/group_vars/group1", loader=fake_loader) v.add_group_vars_file("/etc/ansible/group_vars/group2", loader=fake_loader) v.add_group_vars_file("group_vars/group1", loader=fake_loader) v.add_host_vars_file("/etc/ansible/host_vars/host1", loader=fake_loader) v.add_host_vars_file("host_vars/host1", loader=fake_loader) res = v.get_vars(loader=fake_loader, play=play1, host=h1) self.assertEqual(res['group_var'], 'group_var_from_group_vars_group1') self.assertEqual(res['group_var_all'], 'group_var_all_from_group_vars_all') self.assertEqual(res['playbook_group_var'], 'playbook_group_var') self.assertEqual(res['host_var'], 'host_var_from_host_vars_host1') self.assertEqual(res['playbook_host_var'], 'playbook_host_var') # add in the fact cache v._fact_cache['host1'] = dict(fact_cache_var="fact_cache_var_from_fact_cache") res = v.get_vars(loader=fake_loader, play=play1, host=h1) self.assertEqual(res['fact_cache_var'], 'fact_cache_var_from_fact_cache')
def test_variable_manager_precedence(self): # FIXME: this needs to be redone as dataloader is not the automatic source of data anymore return # pylint: disable=unreachable ''' Tests complex variations and combinations of get_vars() with different objects to modify the context under which variables are merged. ''' # FIXME: BCS makethiswork # return True mock_inventory = MagicMock() inventory1_filedata = """ [group2:children] group1 [group1] host1 host_var=host_var_from_inventory_host1 [group1:vars] group_var = group_var_from_inventory_group1 [group2:vars] group_var = group_var_from_inventory_group2 """ fake_loader = DictDataLoader({ # inventory1 '/etc/ansible/inventory1': inventory1_filedata, # role defaults_only1 '/etc/ansible/roles/defaults_only1/defaults/main.yml': """ default_var: "default_var_from_defaults_only1" host_var: "host_var_from_defaults_only1" group_var: "group_var_from_defaults_only1" group_var_all: "group_var_all_from_defaults_only1" extra_var: "extra_var_from_defaults_only1" """, '/etc/ansible/roles/defaults_only1/tasks/main.yml': """ - debug: msg="here i am" """, # role defaults_only2 '/etc/ansible/roles/defaults_only2/defaults/main.yml': """ default_var: "default_var_from_defaults_only2" host_var: "host_var_from_defaults_only2" group_var: "group_var_from_defaults_only2" group_var_all: "group_var_all_from_defaults_only2" extra_var: "extra_var_from_defaults_only2" """, }) inv1 = InventoryManager(loader=fake_loader, sources=['/etc/ansible/inventory1']) v = VariableManager(inventory=mock_inventory, loader=fake_loader) play1 = Play.load(dict( hosts=['all'], roles=['defaults_only1', 'defaults_only2'], ), loader=fake_loader, variable_manager=v) # first we assert that the defaults as viewed as a whole are the merged results # of the defaults from each role, with the last role defined "winning" when # there is a variable naming conflict res = v.get_vars(play=play1) self.assertEqual(res['default_var'], 'default_var_from_defaults_only2') # next, we assert that when vars are viewed from the context of a task within a # role, that task will see its own role defaults before any other role's blocks = play1.compile() task = blocks[1].block[0] res = v.get_vars(play=play1, task=task) self.assertEqual(res['default_var'], 'default_var_from_defaults_only1') # next we assert the precedence of inventory variables v.set_inventory(inv1) h1 = inv1.get_host('host1') res = v.get_vars(play=play1, host=h1) self.assertEqual(res['group_var'], 'group_var_from_inventory_group1') self.assertEqual(res['host_var'], 'host_var_from_inventory_host1') # next we test with group_vars/ files loaded fake_loader.push( "/etc/ansible/group_vars/all", """ group_var_all: group_var_all_from_group_vars_all """) fake_loader.push( "/etc/ansible/group_vars/group1", """ group_var: group_var_from_group_vars_group1 """) fake_loader.push( "/etc/ansible/group_vars/group3", """ # this is a dummy, which should not be used anywhere group_var: group_var_from_group_vars_group3 """) fake_loader.push( "/etc/ansible/host_vars/host1", """ host_var: host_var_from_host_vars_host1 """) fake_loader.push( "group_vars/group1", """ playbook_group_var: playbook_group_var """) fake_loader.push( "host_vars/host1", """ playbook_host_var: playbook_host_var """) res = v.get_vars(play=play1, host=h1) # self.assertEqual(res['group_var'], 'group_var_from_group_vars_group1') # self.assertEqual(res['group_var_all'], 'group_var_all_from_group_vars_all') # self.assertEqual(res['playbook_group_var'], 'playbook_group_var') # self.assertEqual(res['host_var'], 'host_var_from_host_vars_host1') # self.assertEqual(res['playbook_host_var'], 'playbook_host_var') # add in the fact cache v._fact_cache['host1'] = dict( fact_cache_var="fact_cache_var_from_fact_cache") res = v.get_vars(play=play1, host=h1) self.assertEqual(res['fact_cache_var'], 'fact_cache_var_from_fact_cache')
def test_variable_manager_precedence(self, mock_basedir): ''' Tests complex variations and combinations of get_vars() with different objects to modify the context under which variables are merged. ''' v = VariableManager() v._fact_cache = defaultdict(dict) fake_loader = DictDataLoader({ # inventory1 '/etc/ansible/inventory1': """ [group2:children] group1 [group1] host1 host_var=host_var_from_inventory_host1 [group1:vars] group_var = group_var_from_inventory_group1 [group2:vars] group_var = group_var_from_inventory_group2 """, # role defaults_only1 '/etc/ansible/roles/defaults_only1/defaults/main.yml': """ default_var: "default_var_from_defaults_only1" host_var: "host_var_from_defaults_only1" group_var: "group_var_from_defaults_only1" group_var_all: "group_var_all_from_defaults_only1" extra_var: "extra_var_from_defaults_only1" """, '/etc/ansible/roles/defaults_only1/tasks/main.yml': """ - debug: msg="here i am" """, # role defaults_only2 '/etc/ansible/roles/defaults_only2/defaults/main.yml': """ default_var: "default_var_from_defaults_only2" host_var: "host_var_from_defaults_only2" group_var: "group_var_from_defaults_only2" group_var_all: "group_var_all_from_defaults_only2" extra_var: "extra_var_from_defaults_only2" """, }) mock_basedir.return_value = './' inv1 = Inventory(loader=fake_loader, variable_manager=v, host_list='/etc/ansible/inventory1') inv1.set_playbook_basedir('./') play1 = Play.load(dict( hosts=['all'], roles=['defaults_only1', 'defaults_only2'], ), loader=fake_loader, variable_manager=v) # first we assert that the defaults as viewed as a whole are the merged results # of the defaults from each role, with the last role defined "winning" when # there is a variable naming conflict res = v.get_vars(loader=fake_loader, play=play1) self.assertEqual(res['default_var'], 'default_var_from_defaults_only2') # next, we assert that when vars are viewed from the context of a task within a # role, that task will see its own role defaults before any other role's blocks = play1.compile() task = blocks[1].block[0] res = v.get_vars(loader=fake_loader, play=play1, task=task) self.assertEqual(res['default_var'], 'default_var_from_defaults_only1') # next we assert the precendence of inventory variables v.set_inventory(inv1) h1 = inv1.get_host('host1') res = v.get_vars(loader=fake_loader, play=play1, host=h1) self.assertEqual(res['group_var'], 'group_var_from_inventory_group1') self.assertEqual(res['host_var'], 'host_var_from_inventory_host1') # next we test with group_vars/ files loaded fake_loader.push( "/etc/ansible/group_vars/all", """ group_var_all: group_var_all_from_group_vars_all """) fake_loader.push( "/etc/ansible/group_vars/group1", """ group_var: group_var_from_group_vars_group1 """) fake_loader.push( "/etc/ansible/group_vars/group3", """ # this is a dummy, which should not be used anywhere group_var: group_var_from_group_vars_group3 """) fake_loader.push( "/etc/ansible/host_vars/host1", """ host_var: host_var_from_host_vars_host1 """) v.add_group_vars_file("/etc/ansible/group_vars/all", loader=fake_loader) v.add_group_vars_file("/etc/ansible/group_vars/group1", loader=fake_loader) v.add_group_vars_file("/etc/ansible/group_vars/group2", loader=fake_loader) v.add_host_vars_file("/etc/ansible/host_vars/host1", loader=fake_loader) res = v.get_vars(loader=fake_loader, play=play1, host=h1) self.assertEqual(res['group_var'], 'group_var_from_group_vars_group1') self.assertEqual(res['group_var_all'], 'group_var_all_from_group_vars_all') self.assertEqual(res['host_var'], 'host_var_from_host_vars_host1') # add in the fact cache v._fact_cache['host1'] = dict( fact_cache_var="fact_cache_var_from_fact_cache") res = v.get_vars(loader=fake_loader, play=play1, host=h1) self.assertEqual(res['fact_cache_var'], 'fact_cache_var_from_fact_cache')