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<article class="markdown-body">
<header>
<h1 class="title">AIDE</h1>
</header>
<hr>
<nav id="TOC">
<h1 class="toc-title">Contents</h1>
<ul>
<li><a href="#what-does-this-role-do-for-you"
id="toc-what-does-this-role-do-for-you">What does this role do for
you?</a></li>
<li><a href="#what-does-this-role-not-do-for-you"
id="toc-what-does-this-role-not-do-for-you">What does this role not do
for you?</a></li>
<li><a href="#requirements" id="toc-requirements">Requirements</a></li>
<li><a href="#role-variables" id="toc-role-variables">Role Variables</a>
<ul>
<li><a href="#aide_db_template"
id="toc-aide_db_template">aide_db_template</a></li>
<li><a href="#aide_db_fetch_dir"
id="toc-aide_db_fetch_dir">aide_db_fetch_dir</a></li>
<li><a href="#aide_init" id="toc-aide_init">aide_init</a></li>
<li><a href="#aide_fetch_db"
id="toc-aide_fetch_db">aide_fetch_db</a></li>
<li><a href="#aide_check" id="toc-aide_check">aide_check</a></li>
<li><a href="#aide_update" id="toc-aide_update">aide_update</a></li>
</ul></li>
<li><a href="#example-playbook" id="toc-example-playbook">Example
Playbook</a></li>
<li><a href="#license" id="toc-license">License</a></li>
<li><a href="#author-information" id="toc-author-information">Author
Information</a></li>
</ul>
</nav>
<hr>
<p>This is an ansible role that installs and configures the <a
href="https://aide.github.io">Advanced Intrusion Detection Environment
(AIDE)</a>. For Day 2 tasks it can run integrity checks and update the
AIDE database.</p>
<h1 id="what-does-this-role-do-for-you">What does this role do for
you?</h1>
<ul>
<li>It ensures that the <code>aide</code> package is installed on the
remote nodes</li>
<li>As an optional task it can generate the <code>/etc/aide.conf</code>
file and template it out to the remote nodes</li>
<li>It initializes the AIDE database</li>
<li>The AIDE databases from the remote nodes are stored in a central
directory on the controller node</li>
<li>It runs AIDE integrity checks on the remote nodes</li>
<li>It updates the AIDE databases and stores them on the controller
node</li>
</ul>
<h1 id="what-does-this-role-not-do-for-you">What does this role not do
for you?</h1>
<ul>
<li>It does not explain how to create a good AIDE configuration that
suits your requirements; that task remains for you to accomplish</li>
</ul>
<h1 id="requirements">Requirements</h1>
<p>This role has no special requirements as it uses
<code>ansible.builtin</code> modules only.</p>
<h1 id="role-variables">Role Variables</h1>
<h2 id="aide_db_template">aide_db_template</h2>
<p>This variable takes a string to specify a path where the custom
template for aide.conf is located.</p>
<p>To be sure that everething is correct, template needs to start with
following snippet:</p>
<pre class="jinja"><code>{{ ansible_managed | comment }}
{{ "system_role:aide" | comment(prefix="", postfix="") }}</code></pre>
<p>Default: <code>null</code></p>
<p>Type: <code>string</code></p>
<h2 id="aide_db_fetch_dir">aide_db_fetch_dir</h2>
<p>This variable takes a string to specify the directory on the Ansible
Control Node (ACN) where the role will store the AIDE database fetched
from the remote nodes. The default value is <code>files</code> which is
expected to be a directory in the same directory as the playbook.</p>
<p>In case you like to store the fetched AIDE database files somewhere
else you need to specify a different path here.</p>
<p>Default: <code>files</code></p>
<p>Type: `string</p>
<h2 id="aide_init">aide_init</h2>
<p>Initializes the AIDE database.</p>
<p>Default: <code>false</code></p>
<p>Type: <code>bool</code></p>
<h2 id="aide_fetch_db">aide_fetch_db</h2>
<p>Fetches database from the remote nodes to store it on the controller
node</p>
<p>Default: <code>false</code></p>
<p>Type: <code>bool</code></p>
<h2 id="aide_check">aide_check</h2>
<p>Runs an integrity check on the remote nodes</p>
<p>Default: <code>false</code></p>
<p>Type: <code>bool</code></p>
<h2 id="aide_update">aide_update</h2>
<p>Updates the AIDE database and stores it on the controller node</p>
<p>Default: <code>false</code></p>
<p>Type: <code>bool</code></p>
<h1 id="example-playbook">Example Playbook</h1>
<p>Including an example of how to use your role (for instance, with
variables passed in as parameters) is always nice for users too:</p>
<div class="sourceCode" id="cb2"><pre
class="sourceCode yaml"><code class="sourceCode yaml"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="co"># </span><span class="an">SPDX-License-Identifier:</span><span class="co"> MIT</span></span>
<span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a><span class="pp">---</span></span>
<span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a><span class="kw">-</span><span class="at"> </span><span class="fu">name</span><span class="kw">:</span><span class="at"> Example aide role invocation</span></span>
<span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">hosts</span><span class="kw">:</span><span class="at"> targets</span></span>
<span id="cb2-5"><a href="#cb2-5" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">tasks</span><span class="kw">:</span></span>
<span id="cb2-6"><a href="#cb2-6" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> </span><span class="fu">name</span><span class="kw">:</span><span class="at"> Include role aide</span></span>
<span id="cb2-7"><a href="#cb2-7" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">vars</span><span class="kw">:</span></span>
<span id="cb2-8"><a href="#cb2-8" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">aide_db_fetch_dir</span><span class="kw">:</span><span class="at"> files</span></span>
<span id="cb2-9"><a href="#cb2-9" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">aide_install</span><span class="kw">:</span><span class="at"> </span><span class="ch">true</span></span>
<span id="cb2-10"><a href="#cb2-10" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">aide_generate_config</span><span class="kw">:</span><span class="at"> </span><span class="ch">true</span></span>
<span id="cb2-11"><a href="#cb2-11" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">aide_init</span><span class="kw">:</span><span class="at"> </span><span class="ch">true</span></span>
<span id="cb2-12"><a href="#cb2-12" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">aide_check</span><span class="kw">:</span><span class="at"> </span><span class="ch">false</span></span>
<span id="cb2-13"><a href="#cb2-13" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">aide_update</span><span class="kw">:</span><span class="at"> </span><span class="ch">false</span></span>
<span id="cb2-14"><a href="#cb2-14" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">ansible.builtin.include_role</span><span class="kw">:</span></span>
<span id="cb2-15"><a href="#cb2-15" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">name</span><span class="kw">:</span><span class="at"> linux-system-roles.aide</span></span></code></pre></div>
<p>More examples can be found in the <a
href="examples"><code>examples/</code></a> directory.</p>
<h1 id="license">License</h1>
<p>MIT.</p>
<h1 id="author-information">Author Information</h1>
<ul>
<li>Radovan Sroka</li>
<li>Joerg Kastning</li>
<li>Based on <a href="https://github.com/Tronde/aide">Tronde/aide</a>
ansible role</li>
</ul>
</article>
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