ansible/docs/docsite/rst/porting_guide_2.5.rst

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 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 porting guides <porting_guides>.

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:

when:
    - result | failed
    - not result | success

NEW In Ansible 2.5 it should be changed to look like this:

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

when: result is successful

See 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.

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.

• fixme <fixme>

Noteworthy module changes

• The stat <stat> and win_stat <win_stat> modules have changed the default of the option get_md5 from true to false.

This option will be removed starting with Ansible version 2.9. The options get_checksum: True and checksum_algorithm: md5 can still be used if an MD5 checksum is desired.

Plugins

No notable changes.

Porting custom scripts

No notable changes.

Networking

Change in deprecation notice of top-level connection arguments

- 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:

[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:

[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.

Notice when using provider dictionary with new persistent connection types

Using a provider dictionary with one of the new persistent connection types for networking (network_cli, netconf, etc.) will result in a warning. When using these connections the standard Ansible infrastructure for controlling connections should be used. (Link to basic inventory documentation?)