Hi, I need to install some packages across different Linux distros (mainly
CentOS/Redhat and Ubuntu right now). However, since there isn't a unified
package manager (at least not bundled with core), I'm trying to find the
best way to do this.
I understand that we can use something like 'when: ansible_os_family ==
"RedHat"' or the like, but when we have 400 CentOS hosts and 200 Ubuntu
hosts, that's a lot of "skipping" messages (I'm aware these can also be
suppressed in the main config file). We have playbooks that run against
certain groups of hosts (these groups can contain multiple distros), so I'm
not sure that using group_by is the best option either as, from my
understanding, I'd have to have a 'group_by' in each of those playbooks and
for each distro.
For example, we have an 'ntp' role which basically just installs the ntp
package, drops in the ntp config using template and ensures it's started
(we have similar roles for snmp, ssmtp etc.).
I came across a previous post with an answer from Michael DeHaan suggesting
using the following action (although Michael does state that it's a bad
idea), however, this no longer appears to work;
Using task;
---
##
# Install and configure NTPD
- name: Gather OS Specific Variables
include_vars: "{{ item }}"
with_first_found:
- "../vars/{{ ansible_distribution }}-{{
ansible_distribution_version }}.yml"
- "../vars/{{ ansible_distribution }}.yml"
- "../vars/{{ ansible_os_family }}.yml"
- "../vars/defaults.yml"
- name: Ensure NTP is Installed
action: "{{ ansible_pkg_mgr }} name=ntp state=present"
tags: ntp
- name: Copy NTP Configuration File
template: src=../templates/ntp.conf.j2 dest=/etc/ntp.conf
notify:
- restart ntpd
tags: ntp
- name: Start NTPD
service: name="{{ ntp_service }}" state=started enabled=true
tags: ntp
Results in;
TASK: [ntp | Ensure NTP is Installed]
*****************************************
<XX.XX.XX.XX> ESTABLISH CONNECTION FOR USER: root on PORT 22 TO XX.XX.XX.XX
<XX.XX.XX.XX> REMOTE_MODULE {{ ansible_pkg_mgr }} name=ntp state=present
fatal: [XX.XX.XX.XX] => module {{ not found in
/usr/share/ansible/system:/usr/share/ansible/commands:/usr/share/ansible/messaging:/usr/share/ansible/cloud:/usr/share/ansible/notification:/usr/share/ansible/net_infrastructure:/usr/share/ansible/inventory:/usr/share/ansible/utilities:/usr/share/ansible/internal:/usr/share/ansible/files:/usr/share/ansible/packaging:/usr/share/ansible/database:/usr/share/ansible/source_control:/usr/share/ansible/network:/usr/share/ansible/web_infrastructure:/usr/share/ansible/monitoring:/usr/share/ansible
FATAL: all hosts have already failed -- aborting
----------------
Ansible Version: 1.6.10
OS: CentOS6.5
We have a few hundred servers for which puppet is used for config
management and a hundred or so being managed using Salt (different
departments hence the different tools), and the unified package managers
seem to work well in those tools. Are there any plans to have a module in
Ansible, even if it's just a simple wrapper to call the appropriate module,
yum or apt or whatever, so these kind of playbooks look a bit better and
make it easier where multiple distros are used. So, for example, in this
case I'd just need something like;
- name: Ensure NTP is Installed
pkg: name=ntp state=present
tags: ntp
...and the 'pkg' module works out the correct package module to call. I
know the individual package modules do more than just install and remove
packages but I feel, and maybe I'm the only one, that something like this
would make things simpler and cleaner looking.
Anyway, does anyone have any recommendations to achieve this in the mean
time?
Thanks.
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