ansible/docs/docsite/rst/porting_guide_2.5.rst
Matt Martz 4fe08441be Deprecate tests used as filters (#32361)
* Warn on tests used as filters

* Update docs, add aliases for tests that fit more gramatically with test syntax

* Fix rst formatting

* Add successful filter, alias of success

* Remove renamed_deprecation, it was overkill

* Make directory alias for is_dir

* Update tests to use proper jinja test syntax

* Update additional documentation, living outside of YAML files, to reflect proper jinja test syntax

* Add conversion script, porting guide updates, and changelog updates

* Update newly added uses of tests as filters

* No underscore variable

* Convert recent tests as filter changes to win_stat

* Fix some changes related to rebasing a few integration tests

* Make tests_as_filters_warning explicitly accept the name of the test, instead of inferring the name

* Add test for tests_as_filters_warning

* Update tests as filters in newly added/modified tests

* Address recent changes to several integration tests

* Address recent changes in cs_vpc
2017-11-27 17:58:08 -05:00

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.. _porting_2.5_guide:
*************************
Ansible 2.5 Porting Guide
*************************
This section discusses the behavioral changes between Ansible 2.4 and Ansible 2.5.
It is intended to assist in updating your playbooks, plugins and other parts of your Ansible infrastructure so they will work with this version of Ansible.
We suggest you read this page along with `Ansible Changelog <https://github.com/ansible/ansible/blob/devel/CHANGELOG.md#2.5>`_ to understand what updates you may need to make.
This document is part of a collection on porting. The complete list of porting guides can be found at :ref:`porting guides <porting_guides>`.
.. contents:: Topics
Playbook
========
No notable changes.
Deprecated
==========
Jinja tests used as filters
---------------------------
Using Ansible provided jinja tests as filters will be removed in Ansible 2.9.
Prior to Ansible 2.5, jinja tests included within Ansible were most often used as filters. The large difference in use is that filters are referenced as ``variable | filter_name`` where as jinja tests are refereced as ``variable is test_name``.
Jinja tests are used for comparisons, whereas filters are used for data manipulation, and have different applications in jinja. This change is to help differentiate the concepts for a better understanding of jinja, and where each can be appropriately used.
As of Ansible 2.5 using an Ansible provided jinja test with filter syntax, will display a deprecation error.
**OLD** In Ansible 2.4 (and earlier) the use of an Ansible included jinja test would likely look like this:
.. code-block:: yaml
when:
- result | failed
- not result | success
**NEW** In Ansible 2.5 it should be changed to look like this:
.. code-block:: yaml
when:
- result is failed
- results is not successful
In addition to the deprecation warnings, many new tests have been introduced that are aliases of the old tests, that make more sense grammatically with the jinja test syntax such as the new ``successful`` test which aliases ``success``
.. code-block:: yaml
when: result is successful
See :ref:`The Ansible Tests Documentation <playbooks_tests>` for more information.
Additionally, a script was created to assist in the conversion for tests using filter syntax to proper jinja test syntax. This script has been used to convert all of the Ansible integration tests to the correct format. There are a few limitations documented, and all changes made by this script should be evaluated for correctness before executing the modified playbooks. The script can be found at `https://github.com/ansible/ansible/blob/devel/hacking/fix_test_syntax.py <https://github.com/ansible/ansible/blob/devel/hacking/fix_test_syntax.py>`_.
Modules
=======
Major changes in popular modules are detailed here
No notable changes.
Modules removed
---------------
The following modules no longer exist:
* None
Deprecation notices
-------------------
The following modules will be removed in Ansible 2.9. Please update update your playbooks accordingly.
* :ref:`fixme <fixme>`
Noteworthy module changes
-------------------------
No notable changes.
Plugins
=======
No notable changes.
Porting custom scripts
======================
No notable changes.
Networking
==========
Change in deprecation notice of top-level connection arguments
--------------------------------------------------------------
.. code-block:: yaml
- name: example of using top-level options for connection properties
ios_command:
commands: show version
host: "{{ inventory_hostname }}"
username: cisco
password: cisco
authorize: yes
auth_pass: cisco
**OLD** In Ansible 2.4:
Will result in:
.. code-block:: yaml
[WARNING]: argument username has been deprecated and will be removed in a future version
[WARNING]: argument host has been deprecated and will be removed in a future version
[WARNING]: argument password has been deprecated and will be removed in a future version
**NEW** In Ansible 2.5:
.. code-block:: yaml
[DEPRECATION WARNING]: Param 'username' is deprecated. See the module docs for more information. This feature will be removed in version
2.9. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.
[DEPRECATION WARNING]: Param 'password' is deprecated. See the module docs for more information. This feature will be removed in version
2.9. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.
[DEPRECATION WARNING]: Param 'host' is deprecated. See the module docs for more information. This feature will be removed in version 2.9.
Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.