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<body>
<article class="markdown-body">
<header>
<h1 class="title">postfix</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="#postfix_conf" id="toc-postfix_conf">postfix_conf</a></li>
<li><a href="#postfix_files"
id="toc-postfix_files">postfix_files</a></li>
<li><a href="#postfix_check"
id="toc-postfix_check">postfix_check</a></li>
<li><a href="#postfix_backup"
id="toc-postfix_backup">postfix_backup</a></li>
<li><a href="#postfix_backup_multiple"
id="toc-postfix_backup_multiple">postfix_backup_multiple</a></li>
<li><a href="#postfix_manage_firewall"
id="toc-postfix_manage_firewall">postfix_manage_firewall</a></li>
<li><a href="#postfix_manage_selinux"
id="toc-postfix_manage_selinux">postfix_manage_selinux</a></li>
</ul></li>
<li><a href="#limitations" id="toc-limitations">Limitations</a></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>
</ul>
</nav>
<hr>
<p>This role can install, configure and start Postfix MTA.</p>
<h1 id="requirements">Requirements</h1>
<p>See below</p>
<h2 id="collection-requirements">Collection requirements</h2>
<p>The role requires the <code>firewall</code> role and the
<code>selinux</code> role from the
<code>fedora.linux_system_roles</code> collection, if
<code>postfix_manage_firewall</code> and
<code>postfix_manage_selinux</code> is set to true, respectively.
(Please see also <a
href="#postfix_manage_firewall"><code>postfix_manage_firewall</code></a>
and <a
href="#postfix_manage_selinux"><code>postfix_manage_selinux</code></a>)</p>
<p>If the <code>postfix</code> is a role from the
<code>fedora.linux_system_roles</code> collection or from the Fedora RPM
package, the requirement is already satisfied.</p>
<p>The role requires additional collections to manage
<code>rpm-ostree</code> systems. If you need to manage
<code>rpm-ostree</code> systems, run the below command to install the
collections.</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">-r</span> meta/collection-requirements.yml</span></code></pre></div>
<h1 id="role-variables">Role Variables</h1>
<h2 id="postfix_conf">postfix_conf</h2>
<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">postfix_conf</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="fu">relayhost</span><span class="kw">:</span><span class="at"> example.com</span></span></code></pre></div>
<p>This is a dictionary which can hold key/value pairs of all supported
Postfix configuration parameters. Keys not supported by the installed
Postfix are ignored. The default is empty <code>{}</code>.</p>
<p>You can specify <code>previous: replaced</code> within the
<code>postfix_conf</code> dictionary to remove any existing
configuration and apply the desired configuration on top of clean
postfix installation.</p>
<p><strong>WARNING</strong>: If you specify
<code>previous: replaced</code>, the role reinstalls the postfix package
and replaces the existing <code>/etc/postfix/main.cf</code> and
<code>/etc/postfix/master.cf</code> files.
<!--- wokeignore:rule=master --> Ensure to back up those files to
preserve your settings.</p>
<p><strong>WARNING</strong>: When managing <code>rpm-ostree</code>
systems, the role cannot reinstall the postfix package, so it just
replaces the modified config files with empty files. This is not
idempotent.</p>
<p>If you specify only <code>previous: replaced</code> under the
<code>postfix_conf</code> dictionary, the role re-installs the
<code>postfix</code> package and enables the <code>postfix</code>
service without applying any configuration.</p>
<p>For example, to remove existing configuration and set
<code>relayhost: example.com</code> on top of clean postfix
installation, use <code>postfix_conf</code> like this:</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">postfix_conf</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="fu">previous</span><span class="kw">:</span><span class="at"> replaced</span></span>
<span id="cb3-3"><a href="#cb3-3" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">relayhost</span><span class="kw">:</span><span class="at"> example.com</span></span></code></pre></div>
<h2 id="postfix_files">postfix_files</h2>
<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">postfix_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">name</span><span class="kw">:</span><span class="at"> sasl_passwd</span></span>
<span id="cb4-3"><a href="#cb4-3" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">content</span><span class="kw">:</span><span class="at"> example.com user:password</span></span>
<span id="cb4-4"><a href="#cb4-4" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">postmap</span><span class="kw">:</span><span class="at"> </span><span class="ch">true</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">name</span><span class="kw">:</span><span class="at"> sender_canonical_maps</span></span>
<span id="cb4-6"><a href="#cb4-6" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">content</span><span class="kw">:</span><span class="at"> /.+/ [email protected]</span></span></code></pre></div>
<p>This is a list of files that will be placed in /etc/postfix and that
can be converted into Postfix Lookup Tables if needed.</p>
<p>It's meant as a simple mechanism to configure things such as SASL
credentials and other small snippets.</p>
<h2 id="postfix_check">postfix_check</h2>
<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="fu">postfix_check</span><span class="kw">:</span><span class="at"> </span><span class="ch">false</span></span></code></pre></div>
<p>This is a boolean which determines if <code>postfix check</code> is
run before starting Postfix if the configuration has changed. The
default is <code>true</code>.</p>
<h2 id="postfix_backup">postfix_backup</h2>
<div class="sourceCode" id="cb6"><pre
class="sourceCode yaml"><code class="sourceCode yaml"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="fu">postfix_backup</span><span class="kw">:</span><span class="at"> </span><span class="ch">true</span></span></code></pre></div>
<p>This is a boolean which determines if the role will make a single
backup copy of the configuration - for example,
<code>cp /etc/postfix/main.cf /etc/postfix/main.cf.backup</code>, thus
overwriting the previous backup, if any. The default is
<code>false</code>. NOTE: If you want to set this to <code>true</code>,
you must also set <code>postfix_backup_multiple: false</code> - see
below.</p>
<h2 id="postfix_backup_multiple">postfix_backup_multiple</h2>
<div class="sourceCode" id="cb7"><pre
class="sourceCode yaml"><code class="sourceCode yaml"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="fu">postfix_backup_multiple</span><span class="kw">:</span><span class="at"> </span><span class="ch">false</span></span></code></pre></div>
<p>This is a boolean which determines if the role will make a
timestamped backup copy of the configuration - for example,
<code>cp /etc/postfix/main.cf /etc/postfix/main.cf.$(date -Isec)</code>,
thus keeping multiple backup copies. The default is <code>true</code>.
NOTE: This setting overrides <code>postfix_backup</code>, so you must
set this to <code>false</code> if you want to use
<code>postfix_backup</code>.</p>
<h2 id="postfix_manage_firewall">postfix_manage_firewall</h2>
<p>Boolean flag allowing to configure firewall using the firewall role.
Manage the smtp related ports, 25/tcp, 465/tcp, and 587/tcp. If the
variable is set to <code>false</code>, the <code>postfix role</code>
does not manage the firewall. Default to <code>false</code>.</p>
<p>NOTE: <code>postfix_manage_firewall</code> is limited to
<em>adding</em> ports. It cannot be used for <em>removing</em> ports. If
you want to remove ports, you will need to use the firewall system role
directly.</p>
<p>NOTE: the firewall management is not supported on RHEL 6.</p>
<h2 id="postfix_manage_selinux">postfix_manage_selinux</h2>
<p>Boolean flag allowing to configure selinux using the selinux role.
Assign <code>smtp_port_t</code> to the smtp related ports. If the
variable is set to false, the <code>postfix role</code> does not manage
the selinux</p>
<p>NOTE: <code>postfix_manage_selinux</code> is limited to
<em>adding</em> policy. It cannot be used for <em>removing</em> policy.
If you want to remove policy, you will need to use the selinux system
role directly.</p>
<h1 id="limitations">Limitations</h1>
<p>There is no way to remove separate configuration parameters. As a
workaround, you can use <code>postfix_conf</code>'s
<code>previous: replaced</code> to remove the existing configuration and
then apply the desired configuration on top of clean postfix
installation. For more information, see <a
href="#postfix_conf"><code>postfix_conf</code></a>.</p>
<h1 id="example-playbook">Example Playbook</h1>
<p>Install and enable postfix. Configure
<code>relay_domains=$mydestination</code> and
<code>relayhost=example.com</code>.</p>
<div class="sourceCode" id="cb8"><pre
class="sourceCode yaml"><code class="sourceCode yaml"><span id="cb8-1"><a href="#cb8-1" aria-hidden="true" tabindex="-1"></a><span class="pp">---</span></span>
<span id="cb8-2"><a href="#cb8-2" 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"> Manage postfix</span></span>
<span id="cb8-3"><a href="#cb8-3" 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="cb8-4"><a href="#cb8-4" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">vars</span><span class="kw">:</span></span>
<span id="cb8-5"><a href="#cb8-5" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">postfix_conf</span><span class="kw">:</span></span>
<span id="cb8-6"><a href="#cb8-6" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">relay_domains</span><span class="kw">:</span><span class="at"> $mydestination</span></span>
<span id="cb8-7"><a href="#cb8-7" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">relayhost</span><span class="kw">:</span><span class="at"> example.com</span></span>
<span id="cb8-8"><a href="#cb8-8" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">roles</span><span class="kw">:</span></span>
<span id="cb8-9"><a href="#cb8-9" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> linux-system-roles.postfix</span></span></code></pre></div>
<p>Install and enable postfix. Do not run 'postfix check' before
restarting postfix:</p>
<div class="sourceCode" id="cb9"><pre
class="sourceCode yaml"><code class="sourceCode yaml"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a><span class="pp">---</span></span>
<span id="cb9-2"><a href="#cb9-2" 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"> Manage postfix with no check</span></span>
<span id="cb9-3"><a href="#cb9-3" 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="cb9-4"><a href="#cb9-4" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">vars</span><span class="kw">:</span></span>
<span id="cb9-5"><a href="#cb9-5" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">postfix_check</span><span class="kw">:</span><span class="at"> </span><span class="ch">false</span></span>
<span id="cb9-6"><a href="#cb9-6" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">roles</span><span class="kw">:</span></span>
<span id="cb9-7"><a href="#cb9-7" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> linux-system-roles.postfix</span></span></code></pre></div>
<p>Install and enable postfix. Do single backup of main.cf (older backup
will be rewritten) and configure <code>relayhost=example.com</code>:</p>
<div class="sourceCode" id="cb10"><pre
class="sourceCode yaml"><code class="sourceCode yaml"><span id="cb10-1"><a href="#cb10-1" aria-hidden="true" tabindex="-1"></a><span class="pp">---</span></span>
<span id="cb10-2"><a href="#cb10-2" 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"> Manage postfix with relayhost</span></span>
<span id="cb10-3"><a href="#cb10-3" 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="cb10-4"><a href="#cb10-4" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">vars</span><span class="kw">:</span></span>
<span id="cb10-5"><a href="#cb10-5" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">postfix_conf</span><span class="kw">:</span></span>
<span id="cb10-6"><a href="#cb10-6" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">relayhost</span><span class="kw">:</span><span class="at"> example.com</span></span>
<span id="cb10-7"><a href="#cb10-7" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">postfix_backup</span><span class="kw">:</span><span class="at"> </span><span class="ch">true</span></span>
<span id="cb10-8"><a href="#cb10-8" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">roles</span><span class="kw">:</span></span>
<span id="cb10-9"><a href="#cb10-9" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> linux-system-roles.postfix</span></span></code></pre></div>
<p>Install and enable postfix. Do timestamped backup of main.cf and
configure <code>relayhost=example.com</code> (if
<code>postfix_backup_multiple</code> is set to true
<code>postfix_backup</code> is ignored):</p>
<div class="sourceCode" id="cb11"><pre
class="sourceCode yaml"><code class="sourceCode yaml"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a><span class="pp">---</span></span>
<span id="cb11-2"><a href="#cb11-2" 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"> Manage postfix with multiple backups</span></span>
<span id="cb11-3"><a href="#cb11-3" 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="cb11-4"><a href="#cb11-4" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">vars</span><span class="kw">:</span></span>
<span id="cb11-5"><a href="#cb11-5" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">postfix_conf</span><span class="kw">:</span></span>
<span id="cb11-6"><a href="#cb11-6" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">relayhost</span><span class="kw">:</span><span class="at"> example.com</span></span>
<span id="cb11-7"><a href="#cb11-7" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">postfix_backup_multiple</span><span class="kw">:</span><span class="at"> </span><span class="ch">true</span></span>
<span id="cb11-8"><a href="#cb11-8" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="fu">roles</span><span class="kw">:</span></span>
<span id="cb11-9"><a href="#cb11-9" aria-hidden="true" tabindex="-1"></a><span class="at"> </span><span class="kw">-</span><span class="at"> linux-system-roles.postfix</span></span></code></pre></div>
<h1 id="rpm-ostree">rpm-ostree</h1>
<p>See README-ostree.md</p>
<h1 id="license">License</h1>
<p>Copyright (C) 2017 Jaroslav Škarvada <a
href="mailto:[email protected]">[email protected]</a></p>
<p>This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by the
Free Software Foundation, either version 3 of the License, or (at your
option) any later version.</p>
<p>This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
Public License for more details.</p>
<p>You should have received a copy of the GNU General Public License
along with this program. If not, see <a
href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>.</p>
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