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<h1 class="post-title">Debian updates with Ansible</h1>
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<time class="post-date" datetime="2016-01-31T01:00:00&#43;01:00">
31 January 2016
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<section class="post-content">
<p>I&rsquo;ve recently bought a <a href="http://www8.hp.com/us/en/products/proliant-servers/product-detail.html?oid=5379860">HP Proliant Microserver Gen8</a> to play around with LXC and try new stuff.</p>
<p>From the 4 Debian machines I had to keep up-to-date, I now have 7, so it became quite time-consumming to manually SSH to each of them whenever an update became available.</p>
<p>I ended up looking at <a href="http://www.ansible.com/">Ansible</a> to speed up the process and, within an hour, I had a working playbook that updates the debian packages, pip packages and git repos installed on all of my servers with a single command.</p>
<p>I figured I&rsquo;d share the playbook I use to update the Debian packages !</p>
<h2 id="the-playbook">The playbook</h2>
<p>I modified <a href="https://gist.github.com/maethor/380676f6b1cec8cc7439">this gist</a> to only use apt-get instead of both apt-get and aptitude.</p>
<pre><code class="language-yaml">- hosts: all
tasks:
- name: update cache
apt: update_cache=yes
- name: list packages to upgrade (1/2)
shell: apt-get upgrade -s -V | awk '/=&gt;/{print $1}'
register: updates
changed_when: False
- name: list packages to upgrade (2/2)
debug: msg=&quot;{{ updates.stdout_lines | count }} packages to upgrade ({{ updates.stdout_lines | join(', ') }})&quot;
when: (updates.stdout_lines)
- name: upgrade packages
apt: upgrade=dist
when: (updates.stdout_lines)
- name: check what the new version is
shell: lsb_release -r | awk '{print $2}'
changed_when: False
register: new_release
- name: notify distribution version upgrade
debug: msg=&quot;Debian has been upgraded from {{ ansible_lsb.release }} to {{ new_release.stdout }}&quot;
when: ansible_lsb.release != new_release.stdout
- name: /wheezy/ install the debian-goodies package if it is missing
apt: name=debian-goodies state=present
when: ansible_distribution_release == 'wheezy'
- name: /jessie/ install the needrestart package if it is missing
apt: name=needrestart state=present default_release=jessie-backports
when: ansible_distribution_release == 'jessie'
- name: /wheezy/ list services to restart (1/3)
shell: checkrestart | awk '/^service/{print $2}'
register: wheezy_services
changed_when: False
when: ansible_distribution_release == 'wheezy'
- name: /jessie/ list services to restart (1/3)
shell: needrestart -blrl | awk '/^NEEDRESTART-SVC/{print $2}'
register: jessie_services
changed_when: False
when: ansible_distribution_release != 'wheezy'
- name: merge services list (2/3)
set_fact:
services: &quot;{{ wheezy_services if ansible_distribution_release == 'wheezy' else jessie_services }}&quot;
- name: list services to restart (3/3)
debug: msg=&quot;{{ services.stdout_lines | count }} services to restart ({{ services.stdout_lines | join (', ') }})&quot;
when: (services.stdout_lines)
- name: cache cleanup
shell: apt-get autoclean
</code></pre>
<h2 id="conclusion">Conclusion</h2>
<p>That&rsquo;s all ! Please leave a comment if you&rsquo;ve found this playbook helpful !</p>
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<h4><a href="https://www.captainark.net/">Antoine Joubert</a></h4>
<p>Geek | Gamer | TV Shows Aficionado</p>
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<span class="author-location icon-location">Angers, France</span>
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