group_by is awesome.
- hosts: webservers
group_by: key=webservers_{{ ansible_os_family }}
- hosts: webservers_RedHat
roles:
- ...
On Thu, Jun 19, 2014 at 11:56 AM, James Cammarata <[email protected]>
wrote:
> You can achieve pretty much the same thing by using group_by or
> conditional includes along with the variable structure you've defined,
> without loosing the benefits Michael mentioned.
>
> It should work fine with the apt or yum (or other package modules).
>
>
> On Thu, Jun 19, 2014 at 11:53 AM, Maciej Delmanowski <[email protected]>
> wrote:
>
>> Will this work ok if I use apt: module directly instead? For different
>> package lists in Debian and Ubuntu, for example.
>> 19 cze 2014 18:49 "Michael DeHaan" <[email protected]> napisał(a):
>>
>> Never do this, ansible_pkg_mgr does not allow the with_items block to be
>>> grouped into a single yum/apt transaction, which results in much slower
>>> package installations.
>>>
>>> I understand why it's appealing, but really don't ... you'll also find
>>> that the yum and apt modules have different options you may want to use
>>> from time to time anyway.
>>>
>>>
>>> On Thu, Jun 19, 2014 at 7:47 AM, Maciej Delmanowski <[email protected]>
>>> wrote:
>>>
>>>> How about this solution?
>>>>
>>>> In `defaults/main.yml`:
>>>>
>>>> java_distribution_packages:
>>>> Debian: [ 'openjdk-7', 'java-stuff' ]
>>>> RefHat: [ 'java-runtime-7', 'other-stuff' ]
>>>>
>>>> And then, in `tasks/main.yml`:
>>>>
>>>> - {{ ansible_pkg_mgr }}: name={{ item }} state=latest
>>>> witn_items: java_distribution_packages[ansible_os_family]
>>>>
>>>> I think that should work fine and let you override
>>>> java_distribution_packages in inventory.
>>>>
>>>> Maciej
>>>>
>>>>
>>>> 2014-06-19 14:40 GMT+02:00 Jeff Geerling <[email protected]>:
>>>>
>>>> The technique I usually use for making a role work cross-distro is to
>>>>> do two things:
>>>>>
>>>>> *For variables*: Include a variables file named {{ ansible_os_family
>>>>> }}.yml (then stick 'Debian.yml' and 'RedHat.yml', etc. into the role's
>>>>> vars
>>>>> folder.
>>>>>
>>>>> *For tasks*: Add "when: ansible_os_family == 'Distribution'" to the
>>>>> task (where 'Distribution' is Debian, RedHat, etc.).
>>>>>
>>>>> This presents an issue; for normal variables that I want to let role
>>>>> users override easily, I put the variables in the roles
>>>>> 'defaults/main.yml'
>>>>> file. But for distribution-specific variables (for example,
>>>>> "java_packages"
>>>>> in my Java role <https://github.com/geerlingguy/ansible-role-java>),
>>>>> I have to put the distro-specific vars include files in the main 'vars'
>>>>> folder, so those variables have higher precedence than, say, group_vars.
>>>>>
>>>>> I've bumped into this a few times, but could usually find other ways
>>>>> of getting the variable I want to take hold. For some users, it's not
>>>>> possible, thus I have bugs like: Openjdk-7 cannot be installed
>>>>> <https://github.com/geerlingguy/ansible-role-java/issues/1>.
>>>>>
>>>>> What are some possible fixes/other ways to do this?
>>>>>
>>>>> I could set up a variable for each distro (like "java_redhat_packages"
>>>>> and "java_debian_packages", but in some roles, where 5-10 of these would
>>>>> be
>>>>> needed, I fear maintainability and simplicity would be sacrificed for
>>>>> variable overridability...
>>>>>
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