With the introduction of `pip_args` option, you can easily extend the
`:pip` installation mode behaviour. But some interesting/advanced usages
are still not possible because of the auto-generated parts ("ansible"
package, version selection, and the `--upgrade` flag).
By adding this "pip_args_only" install mode, it will be for instance
possible to:
- install unofficial releases, like release candidates published at
https://releases.ansible.com/
- install more pip packages (e.g. via a `requirements.txt` file), with
hash validation, etc.
Note that there is no config validation that requires `pip_args` option
to be defined when the :pip_args_only mode is selected. This would be
more elegant, and user friendly to raise a configuration error, but this
can wait. At least, running with an empty `pip_args` won't lead to any
command crash, since the rather dummy "pip install" shows an helper
notice and terminates with a zero (0) exit code.
This change is thought as a complement to the changes originally
proposed in pull request GH-8170.
With this new option, it is now possible to pass additional arguments to
pip command when the `install_mode` is "pip".
(@gildegoma reworded the original commit message of pull request GH-8170)
With bb9dba56aca7e4bd3546ad1fa3256bfc8955c47e, I introduced a pitiful
regression in "rpm-based" Ansible installation (via yum or dnf).
This fix is part of GH-6654
These changes have been validated against the following guest systems:
- Debian 7 and 8
- Ubuntu 12.04, 14.04 and 16.04
- Fedora 21 and 23
- CentOS 7
- OracleLinux 7
- Scientific Linux 7
At the moment, the pip setup (via get-pip.py script) is not working for
RHEL6-like systems (CentOS 6.6, OracleLinux 6.5, Scientific Linux 6),
because Python 2.6 has been deprecated and is no longer supported by
Python core team. I consider this limitation with low priority in
Vagrant context.
The `:pip` install_mode is currently not implemented for the following
platforms:
- OpenSUSE
- ArchLinux
- FreeBSD
Known Issue: By using get-pip.py script, any previous pip installation
will be most probably overrided. This could be an issue for Python
developers who would prefer to keep their base box setup untouched. In
future iteration, it could be possible to choose to reinstall/upgrade
pip or not. issue for Python developers who would prefer to keep their
base box setup untouched. In future iteration, it could be possible to
choose to reinstall/upgrade pip or not.
Resolve GH-6654
Resolve GH-7167 as the `version` option is now considered to select the
version of Ansible to be installed.
