Before this change, only the ansible_local provisioner supported this
option (for ansible version requirement, and pip installation). Now, the
ansible host-based provisioner can also require a exact ansible version.
Resolve#8914
Note: this has been added as part of #6570 resolution, since the
introduction of the `compatibility_mode` auto-detection made both
provisioners made capable to detect ansible version.
Pending: optimize the code to avoid duplicated executions of "ansible
--version" command.
With this change, it is now possible to get rid of many deprecation
messages successively introduced in Ansible 1.9, and 2.0. More
interesting, the generated inventory will contain the recommended
variable names (e.g. `ansible_host` instead of `ansible_ssh_host`)
when the compatibility mode is set to '2.0'.
Details:
- Add `compatibility_mode` option to control the Ansible parameters
format to be used. The value corresponds to the minimal version
supported. For the moment, possible values are '1.8' (corresponding to
Vagrant's former behaviour) or '2.0'.
Note that a dynamic inventory generated in compatibility mode '2.0'
is not supported by Ansible 1.x. On the other hand, Ansible 2.x so far
supports inventory format generated by the compatibility mode '1.8'.
- Add compatibility mode auto-detection, based on the available Ansible
version. This is the default behaviour in order to bring a maximum of
user friendliness. The drawback of this approach is to let potential
compatibility breaking risks, for `ansible` provisioner setups that
already integrate Ansible 2.x **AND** rely on the existence of
the generated `_ssh` variable names. Thanks to the vagrant warnings
(and its release notes), I argue that it is worth to offer
auto-detection by default, which offers a sweet transition to most
users.
- Add `become`, `become_user` and `ask_become_pass` options and their
backwards compatible aliases. The legacy options are now deprecated.
Note that we intentionally didn't provide a '1.9' compatibility mode,
as it would add extra-complexity for practically no added-value.
To my knowledge, the Ansible 2.x series haven't introduced yet any major
changes or deprecations that would motivate to introduce a higher
version compatibility mode (to be confirmed/verified).
Resolve GH-6570
Still Pending:
- Optimization: Reduce the number of `ansible` command executions.
Currently two exec calls will be performed when the compatibility
mode auto-detection is enabled (i.e. by default). We could make the
provisioner a little bit smarter to only execute `ansible` only once
in any situation (by combining "presence" and "version" checks).
- User-friendliness: Add better validator on `compatibility_mode`
option, and shows a warning or an error instead of the silent
fallback on the auto-detection modus.
- Test coverage: All the added behaviours are not fully covered yet.
With this new option defined, the `ansible-galaxy` and
`ansible-playbook` commands generated by the Ansible provisioners will
be executed with the ANSIBLE_CONFIG environment variable set
accordingly.
Resolve GH-7195
This commit also fix the following open issues:
- Implement the pending RSpec examples about path existence checks
performed by the ansible (remote) provisioner.
- In verbose mode, the ansible remote provisioner now correctly displays
the Ansible Galaxy parameters ("role_file" and "roles_path") with
single quotes (which is safer for potential copy-paste usage).
Additional Notes:
- Test coverage for `ansible_local` provisioner is still not
implemented. See GH-6633.
- Test coverage for galaxy from host is not implemented yet (due to
general issue with mocking both command executions, see
https://github.com/mitchellh/vagrant/pull/6529#r45278451
The ansible-playbook command is currently hardcoded for the ansible and
ansible_local provisioners. This patch adds the config option
playbook_command to allow the user to change the command.
With this change, the presence of Ansible configuration files (like
playbook file, inventory path, galaxy role file, etc.) is no longer
performed by the `config` classes, but by the `provisioner` classes
(at the beginning of the provision command).
This change fixes several issues:
- Resolve#6984 as `provision` method are only executed when remote
(ssh) communication with the guest machine is possible.
- Resolve#6763 in a better way than 4e451c6 initially did.
- Improve the general provisioner speed since the `config` checks are
actually triggered by many vagrant actions (e.g. `destroy`,...), and
can also be triggered multiple times during a vagrant run (e.g. on
callback request made by the machine provider).
Unlike the former `config`-based checks, the provision action won't
collect all the invalid options, but only report the first invalid
option found and abort the execution.
Some unit tests were not implemented yet to save my scarce "open source
contribution time" for other important issues, but they should be done
at last via GH-6633.
With this change, the `raw_arguments` and `raw_ssh_args` options are:
- STILL automatically converted as an Array when they are set a String
(no behaviour change)
- rejected if they are not of Array data type otherwise
Additional Notes:
- the 'as_array' tiny helper has been removed since it was no longer
used.
- there is for now no deeper validation (i.e. verifying that the Array
elements are only *String* objects)
With cb80286a4a, the helper function
stringify_ansible_playbook_command was also applied on the
`raw_arguments` content, which is not wanted. Given that users have used
the `raw_arguments` option as a workaround to avoid the bug GH-6726,
this new change ensure that any `--extra-vars` option passed as a raw
argument won't be additonally enquoted by the ansible_local
provisioner.
This change also improves the ansible remote provisioner verbose output,
but has no impact on its behaviour, which was already correct.
Note that this refactoring introduces some code duplications that are not
very elegant (see ansible_playbook_command_for_shell_execution in
host.rb and execute_ansible_playbook_from_host in base.rb). I hope we
can find a better implementation later, but it is good enough for now
since all these parts are covered by corresponding unit tests (the
`ansible_local` stuff being tested via the verbose output of the ansible
remote provisioner).
With this change, the existing host-based Ansible provisioner is
refactored to share a maximum of code with this new guest-based Ansible
provisioner.
At this stage of development, the existing unit tests are intentionally
modified as little as possible, to keep safe the existing funtionalities.
Other issues resolved by this changeset:
- Display a warning when running from a Windows host [GH-5292]
- Do not run `ansible-playbook` in verbose mode when the `verbose` option
is set to an empty string.
Gilles Cornu
Daniel Gonzalez
Christian Henz