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b79d15e67f
* Improve and link Network Proxy docs It is possible for proxy issues to cause "unable to open shell", so detail there. Having the "how-to" in the debug page makes more sense than on the porting page, so move it. Fixed a few formatting issues at the same time. * Edits * typo
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224 lines
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.. _porting_2.3_guide:
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*************************
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Ansible 2.3 Porting Guide
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*************************
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This section discusses the behavioral changes between Ansible 2.2 and Ansible 2.3.
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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.
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We suggest you read this page along with `Ansible Changelog <https://github.com/ansible/ansible/blob/devel/CHANGELOG.md#2.3>`_ to understand what updates you may need to make.
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This document is part of a collection on porting. The complete list of porting guides can be found at :ref:`porting guides <porting_guides>`.
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.. contents:: Topics
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Playbook
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========
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Restructued async to work with action plugins
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---------------------------------------------
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In Ansible 2.2 (and possibly earlier) the `async:` keyword could not be used in conjunction with the action plugins such as `service`. This limitation has been removed in Ansible 2.3
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**NEW** In Ansible 2.3:
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.. code-block:: yaml
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- name: Install nginx asynchronously
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service:
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name: nginx
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state: restarted
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async: 45
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OpenBSD version facts
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---------------------
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The `ansible_distribution_release` and `ansible_distribution_version` facts on OpenBSD hosts were reversed in Ansible 2.2 and earlier. This has been changed so that version has the numeric portion and release has the name of the release.
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**OLD** In Ansible 2.2 (and earlier)
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.. code-block:: yaml
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"ansible_distribution": "OpenBSD"
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"ansible_distribution_release": "6.0",
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"ansible_distribution_version": "release",
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**NEW** In Ansible 2.3:
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.. code-block:: yaml
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"ansible_distribution": "OpenBSD",
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"ansible_distribution_release": "release",
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"ansible_distribution_version": "6.0",
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Names Blocks
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------------
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Blocks can now have names, this allows you to avoid the ugly `# this block is for...` comments.
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**NEW** In Ansible 2.3:
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.. code-block:: yaml
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- name: Block test case
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hosts: localhost
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tasks:
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- name: Attempt to setup foo
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block:
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- debug: msg='I execute normally'
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- command: /bin/false
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- debug: msg='I never execute, cause ERROR!'
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rescue:
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- debug: msg='I caught an error'
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- command: /bin/false
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- debug: msg='I also never execute :-('
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always:
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- debug: msg="this always executes"
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Use of multiple tags
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--------------------
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Specifying ``--tags`` (or ``--skip-tags``) multiple times on the command line currently leads to the last specified tag overriding all the other specified tags. This behaviour is deprecated. In the future, if you specify --tags multiple times the tags will be merged together. From now on, using ``--tags`` multiple times on one command line will emit a deprecation warning. Setting the ``merge_multiple_cli_tags`` option to True in the ``ansible.cfg`` file will enable the new behaviour.
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In 2.4, the default will be to merge the tags. You can enable the old overwriting behavior via the config option.
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In 2.5, multiple ``--tags`` options will be merged with no way to go back to the old behaviour.
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Other caveats
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-------------
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Here are some rare cases that might be encountered when updating. These are mostly caused by the more stringent parser validation and the capture of errors that were previously ignored.
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* Made ``any_errors_fatal`` inheritable from play to task and all other objects in between.
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Modules
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=======
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No major changes in this version.
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Modules removed
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---------------
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No major changes in this version.
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Deprecation notices
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-------------------
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The following modules will be removed in Ansible 2.5. Please update your playbooks accordingly.
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* :ref:`ec2_vpc <ec2_vpc>`
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* :ref:`cl_bond <cl_bond>`
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* :ref:`cl_bridge <cl_bridge>`
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* :ref:`cl_img_install <cl_img_install>`
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* :ref:`cl_interface <cl_interface>`
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* :ref:`cl_interface_policy <cl_interface_policy>`
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* :ref:`cl_license <cl_license>`
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* :ref:`cl_ports <cl_ports>`
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* :ref:`nxos_mtu <nxos_mtu>` use :ref:`nxos_system <nxos_system>` instead
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Noteworthy module changes
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-------------------------
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AWS lambda
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^^^^^^^^^^
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Previously ignored changes that only affected one parameter. Existing deployments may have outstanding changes that this bug fix will apply.
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Mount
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^^^^^
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Mount: Some fixes so bind mounts are not mounted each time the playbook runs.
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Plugins
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=======
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No major changes in this version.
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Porting custom scripts
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======================
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No major changes in this version.
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Networking
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==========
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There have been a number of changes to number of changes to how Networking Modules operate.
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Playbooks should still use ``connection: local``.
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The following changes apply to:
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* dellos6
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* dellos9
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* dellos10
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* eos
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* ios
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* iosxr
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* junos
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* sros
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* vyos
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Deprecation of top-level connection arguments
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---------------------------------------------
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**OLD** In Ansible 2.2:
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.. code-block:: yaml
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- name: example of using top-level options for connection properties
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ios_command:
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commands: show version
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host: "{{ inventory_hostname }}"
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username: cisco
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password: cisco
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authorize: yes
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auth_pass: cisco
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Will result in:
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.. code-block:: yaml
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[WARNING]: argument username has been deprecated and will be removed in a future version
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[WARNING]: argument host has been deprecated and will be removed in a future version
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[WARNING]: argument password has been deprecated and will be removed in a future version
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**NEW** In Ansible 2.3:
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.. code-block:: yaml
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- name: Gather facts
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eos_facts:
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gather_subset: all
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provider:
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username: myuser
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password: "{{ networkpassword }}"
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transport: cli
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host: "{{ ansible_host }}"
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delegate_to vs ProxyCommand
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---------------------------
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The new connection framework for Network Modules in Ansible 2.3 that uses ``cli`` transport
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no longer supports the use of the ``delegate_to`` directive.
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In order to use a bastion or intermediate jump host to connect to network devices over ``cli``
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transport, network modules now support the use of ``ProxyCommand``.
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To use ``ProxyCommand`` configure the proxy settings in the Ansible inventory
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file to specify the proxy host via ``ansible_ssh_common_args``.
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For details on how to do this see the :ref:`network proxy guide <network_delegate_to_vs_ProxyCommand>`.
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