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<article class="markdown-body">
<header>
<h1 class="title">systemd</h1>
</header>
<hr>
<nav id="TOC">
<h1 class="toc-title">Contents</h1>
<ul>
<li><a href="#requirements" id="toc-requirements">Requirements</a>
<ul>
<li><a href="#collection-requirements"
id="toc-collection-requirements">Collection requirements</a></li>
</ul></li>
<li><a href="#role-variables" id="toc-role-variables">Role Variables</a>
<ul>
<li><a href="#systemd_unit_files"
id="toc-systemd_unit_files">systemd_unit_files</a></li>
<li><a href="#systemd_unit_file_templates"
id="toc-systemd_unit_file_templates">systemd_unit_file_templates</a></li>
<li><a href="#systemd_dropins"
id="toc-systemd_dropins">systemd_dropins</a></li>
<li><a href="#systemd_started_units"
id="toc-systemd_started_units">systemd_started_units</a></li>
<li><a href="#systemd_stopped_units"
id="toc-systemd_stopped_units">systemd_stopped_units</a></li>
<li><a href="#systemd_restarted_units"
id="toc-systemd_restarted_units">systemd_restarted_units</a></li>
<li><a href="#systemd_reloaded_units"
id="toc-systemd_reloaded_units">systemd_reloaded_units</a></li>
<li><a href="#systemd_enabled_units"
id="toc-systemd_enabled_units">systemd_enabled_units</a></li>
<li><a href="#systemd_disabled_units"
id="toc-systemd_disabled_units">systemd_disabled_units</a></li>
<li><a href="#systemd_masked_units"
id="toc-systemd_masked_units">systemd_masked_units</a></li>
<li><a href="#systemd_unmasked_units"
id="toc-systemd_unmasked_units">systemd_unmasked_units</a></li>
<li><a href="#systemd_transactional_update_reboot_ok"
id="toc-systemd_transactional_update_reboot_ok">systemd_transactional_update_reboot_ok</a></li>
</ul></li>
<li><a href="#variables-exported-by-the-role"
id="toc-variables-exported-by-the-role">Variables Exported by the
Role</a>
<ul>
<li><a href="#systemd_units"
id="toc-systemd_units"><code>systemd_units</code></a></li>
<li><a href="#systemd_units_user"
id="toc-systemd_units_user"><code>systemd_units_user</code></a></li>
</ul></li>
<li><a href="#example-playbook" id="toc-example-playbook">Example
Playbook</a></li>
<li><a href="#rpm-ostree" id="toc-rpm-ostree">rpm-ostree</a></li>
<li><a href="#license" id="toc-license">License</a></li>
<li><a href="#author" id="toc-author">Author</a></li>
</ul>
</nav>
<hr>
<p><img
src="https://github.com/linux-system-roles/systemd/workflows/tox/badge.svg"
alt="template" /></p>
<p>Ansible role that can be used to deploy unit files and manage systemd
units. Role is a convenience wrapper around systemd and template Ansible
Core modules.</p>
<h1 id="requirements">Requirements</h1>
<p><em>NOTE:</em> Support for user units is not available in EL7 or
earlier. This feature is only available in EL8 and later.</p>
<h2 id="collection-requirements">Collection requirements</h2>
<p>In order to manage <code>rpm-ostree</code> systems, the role requires
modules from external collections. Use the following command to install
them:</p>
<div class="sourceCode" id="cb1"><pre
class="sourceCode bash"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="ex">ansible-galaxy</span> collection install <span class="at">-vv</span> <span class="at">-r</span> meta/collection-requirements.yml</span></code></pre></div>
<h1 id="role-variables">Role Variables</h1>
<p>List of variables consumed by the role follows, note that none of
them is mandatory.</p>
<p>Each of the variables can either be a list of strings, or a list of
<code>dicts</code>.</p>
<p>The list of strings form assumes that the items to be managed are
system units owned by <code>root</code>, and for files, assumes that the
files should be <code>present</code>.</p>
<p>The list of <code>dict</code> form looks like this:</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="fu">systemd_unit_files</span><span class="kw">:</span></span>
<span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> </span><span class="fu">item</span><span class="kw">:</span><span class="at"> some.service</span></span>
<span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">user</span><span class="kw">:</span><span class="at"> my_user</span></span>
<span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">state</span><span class="kw">:</span><span class="at"> </span><span class="kw">[</span><span class="at">present|absent</span><span class="kw">]</span></span></code></pre></div>
<p>Use the <code>dict</code> form to manage user units, and to remove
unit files. If using user units, the role will manage lingering for
those users.</p>
<p><em>NOTE:</em> Support for user units is not available in EL7 or
earlier. This feature is only available in EL8 and later.</p>
<h2 id="systemd_unit_files">systemd_unit_files</h2>
<p>List of systemd unit file names that should be deployed to managed
nodes.</p>
<h2 id="systemd_unit_file_templates">systemd_unit_file_templates</h2>
<p>List of systemd unit file names that should be deployed to managed
nodes. Each name should correspond to Jinja template file that will be
templated out to managed nodes. If the local file has a <code>.j2</code>
suffix it will be stripped to form the service name.</p>
<h2 id="systemd_dropins">systemd_dropins</h2>
<p>List of systemd drop in files that will be templated out to managed
hosts and will extend respective systemd unit files. Name of the unit
file that given entry extends is encoded in the name of the entry
itself. For example, for entry <code>foo.service.conf</code> it is
expected that <code>foo.service.conf</code> Jinja template exists and
resulting dropin file will extend <code>foo.service</code> unit file. If
the local file has a <code>.j2</code> suffix it will be stripped to form
the service name.</p>
<h2 id="systemd_started_units">systemd_started_units</h2>
<p>List of unit names that shall be started via systemd.</p>
<h2 id="systemd_stopped_units">systemd_stopped_units</h2>
<p>List of unit names that shall be stopped via systemd.</p>
<h2 id="systemd_restarted_units">systemd_restarted_units</h2>
<p>List of unit names that shall be restarted via systemd.</p>
<h2 id="systemd_reloaded_units">systemd_reloaded_units</h2>
<p>List of unit names that shall be reloaded via systemd.</p>
<h2 id="systemd_enabled_units">systemd_enabled_units</h2>
<p>List of unit files that shall be enabled via systemd.</p>
<h2 id="systemd_disabled_units">systemd_disabled_units</h2>
<p>List of unit files that shall be disabled via systemd.</p>
<h2 id="systemd_masked_units">systemd_masked_units</h2>
<p>List of unit files that shall be masked via systemd.</p>
<h2 id="systemd_unmasked_units">systemd_unmasked_units</h2>
<p>List of unit files that shall be unmasked via systemd.</p>
<h2
id="systemd_transactional_update_reboot_ok">systemd_transactional_update_reboot_ok</h2>
<p>This variable is used to handle reboots required by transactional
updates. If a transactional update requires a reboot, the role will
proceed with the reboot if systemd_transactional_update_reboot_ok is set
to true. If set to false, the role will notify the user that a reboot is
required, allowing for custom handling of the reboot requirement. If
this variable is not set, the role will fail to ensure the reboot
requirement is not overlooked.</p>
<p>Example of setting the variables for the simple list of strings
format:</p>
<div class="sourceCode" id="cb3"><pre
class="sourceCode yaml"><code class="sourceCode yaml"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="fu">systemd_unit_files</span><span class="kw">:</span></span>
<span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> foo.service</span></span>
<span id="cb3-3"><a href="#cb3-3" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> bar.service</span></span>
<span id="cb3-4"><a href="#cb3-4" aria-hidden="true" tabindex="-1"></a><span class="fu">systemd_dropins</span><span class="kw">:</span></span>
<span id="cb3-5"><a href="#cb3-5" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> cups.service.conf.j2</span></span>
<span id="cb3-6"><a href="#cb3-6" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> avahi-daemon.service.conf.j2</span></span>
<span id="cb3-7"><a href="#cb3-7" aria-hidden="true" tabindex="-1"></a><span class="fu">systemd_started_units</span><span class="kw">:</span></span>
<span id="cb3-8"><a href="#cb3-8" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> foo.service</span></span>
<span id="cb3-9"><a href="#cb3-9" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> bar.service</span></span>
<span id="cb3-10"><a href="#cb3-10" aria-hidden="true" tabindex="-1"></a><span class="fu">systemd_enabled_units</span><span class="kw">:</span></span>
<span id="cb3-11"><a href="#cb3-11" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> foo.service</span></span>
<span id="cb3-12"><a href="#cb3-12" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> bar.service</span></span></code></pre></div>
<p>Example of setting the variables for the list of <code>dict</code>
format:</p>
<div class="sourceCode" id="cb4"><pre
class="sourceCode yaml"><code class="sourceCode yaml"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="fu">systemd_unit_files</span><span class="kw">:</span></span>
<span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> </span><span class="fu">item</span><span class="kw">:</span><span class="at"> foo.service</span></span>
<span id="cb4-3"><a href="#cb4-3" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">user</span><span class="kw">:</span><span class="at"> root</span></span>
<span id="cb4-4"><a href="#cb4-4" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">state</span><span class="kw">:</span><span class="at"> present</span></span>
<span id="cb4-5"><a href="#cb4-5" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> </span><span class="fu">item</span><span class="kw">:</span><span class="at"> bar.service</span></span>
<span id="cb4-6"><a href="#cb4-6" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">user</span><span class="kw">:</span><span class="at"> my_user</span></span>
<span id="cb4-7"><a href="#cb4-7" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">state</span><span class="kw">:</span><span class="at"> absent</span></span>
<span id="cb4-8"><a href="#cb4-8" aria-hidden="true" tabindex="-1"></a><span class="fu">systemd_dropins</span><span class="kw">:</span></span>
<span id="cb4-9"><a href="#cb4-9" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> </span><span class="fu">item</span><span class="kw">:</span><span class="at"> cups.service.conf.j2</span></span>
<span id="cb4-10"><a href="#cb4-10" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">user</span><span class="kw">:</span><span class="at"> root</span></span>
<span id="cb4-11"><a href="#cb4-11" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">state</span><span class="kw">:</span><span class="at"> present</span></span>
<span id="cb4-12"><a href="#cb4-12" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> </span><span class="fu">item</span><span class="kw">:</span><span class="at"> avahi-daemon.service.conf.j2</span></span>
<span id="cb4-13"><a href="#cb4-13" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">user</span><span class="kw">:</span><span class="at"> my_user</span></span>
<span id="cb4-14"><a href="#cb4-14" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">state</span><span class="kw">:</span><span class="at"> absent</span></span>
<span id="cb4-15"><a href="#cb4-15" aria-hidden="true" tabindex="-1"></a><span class="fu">systemd_started_units</span><span class="kw">:</span></span>
<span id="cb4-16"><a href="#cb4-16" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> </span><span class="fu">item</span><span class="kw">:</span><span class="at"> foo.service</span></span>
<span id="cb4-17"><a href="#cb4-17" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">user</span><span class="kw">:</span><span class="at"> root</span></span>
<span id="cb4-18"><a href="#cb4-18" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> </span><span class="fu">item</span><span class="kw">:</span><span class="at"> bar.service</span></span>
<span id="cb4-19"><a href="#cb4-19" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">user</span><span class="kw">:</span><span class="at"> my_user</span></span>
<span id="cb4-20"><a href="#cb4-20" aria-hidden="true" tabindex="-1"></a><span class="fu">systemd_enabled_units</span><span class="kw">:</span></span>
<span id="cb4-21"><a href="#cb4-21" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> </span><span class="fu">item</span><span class="kw">:</span><span class="at"> foo.service</span></span>
<span id="cb4-22"><a href="#cb4-22" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">user</span><span class="kw">:</span><span class="at"> root</span></span>
<span id="cb4-23"><a href="#cb4-23" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> </span><span class="fu">item</span><span class="kw">:</span><span class="at"> bar.service</span></span>
<span id="cb4-24"><a href="#cb4-24" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">user</span><span class="kw">:</span><span class="at"> my_user</span></span></code></pre></div>
<h1 id="variables-exported-by-the-role">Variables Exported by the
Role</h1>
<h2 id="systemd_units"><code>systemd_units</code></h2>
<p>The variable is a <code>dict</code>. Each key is the name of a
systemd unit. Each value is a dict with fields that describe the state
of that systemd unit present on the managed host for the system
scope.</p>
<h2 id="systemd_units_user"><code>systemd_units_user</code></h2>
<p>Variable shall contain a dict. Each key is the name of a user given
in one of the lists passed to the role, and <code>root</code> (even if
<code>root</code> is not given). Each value is a dict of systemd units
for that user, or system units for <code>root</code>, in the format of
<code>systemd_units</code> above.</p>
<h1 id="example-playbook">Example Playbook</h1>
<div class="sourceCode" id="cb5"><pre
class="sourceCode yaml"><code class="sourceCode yaml"><span id="cb5-1"><a href="#cb5-1" 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"> Deploy and start systemd unit</span></span>
<span id="cb5-2"><a href="#cb5-2" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">hosts</span><span class="kw">:</span><span class="at"> all</span></span>
<span id="cb5-3"><a href="#cb5-3" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">vars</span><span class="kw">:</span></span>
<span id="cb5-4"><a href="#cb5-4" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">systemd_unit_file_templates</span><span class="kw">:</span></span>
<span id="cb5-5"><a href="#cb5-5" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> foo.service.j2</span></span>
<span id="cb5-6"><a href="#cb5-6" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">systemd_started_units</span><span class="kw">:</span></span>
<span id="cb5-7"><a href="#cb5-7" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> </span><span class="fu">item</span><span class="kw">:</span><span class="at"> foo.service</span></span>
<span id="cb5-8"><a href="#cb5-8" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">user</span><span class="kw">:</span><span class="at"> root</span></span>
<span id="cb5-9"><a href="#cb5-9" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> </span><span class="fu">item</span><span class="kw">:</span><span class="at"> bar.service</span></span>
<span id="cb5-10"><a href="#cb5-10" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">user</span><span class="kw">:</span><span class="at"> my_user</span></span>
<span id="cb5-11"><a href="#cb5-11" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">systemd_enabled_units</span><span class="kw">:</span></span>
<span id="cb5-12"><a href="#cb5-12" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> foo.service</span></span>
<span id="cb5-13"><a href="#cb5-13" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">roles</span><span class="kw">:</span></span>
<span id="cb5-14"><a href="#cb5-14" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> linux-system-roles.systemd</span></span></code></pre></div>
<h1 id="rpm-ostree">rpm-ostree</h1>
<p>See README-ostree.md</p>
<h1 id="license">License</h1>
<p>MIT</p>
<h1 id="author">Author</h1>
<p>Michal Sekletar <a
href="mailto:[email protected]">[email protected]</a> Rich Megginson
<a href="mailto:[email protected]">[email protected]</a></p>
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