Rename the config dir to setup

setup/templates/steps/expose.html

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+{% call macros.panel("info", "Step 2 - expose Mailu to the world") %}
+<p>A mail server must be exposed to the world to receive emails, send emails,
+and let users access their mailboxes. Mailu has some flexibility in the way
+you expose it to the world.</p>
+
+<p>Among Mailu services, the <em>front</em> server is the one accepting connections,
+be it directly from the outside world, through a reverse proxy or in any
+complex configuration that you might want to setup. It needs to listen on some
+IP addresses in order to expose its public services. You must at least setup
+an IPv4 or an IPv6 address if you wish to access Mailu.</p>
+
+<p><span class="label label-warning">Warning</span> You must use specific addresses, please
+avoid generic all-interfaces addresses like <code>0.0.0.0</code> or <code>::</code>.</p>
+
+<div class="form-group">
+  <label>IPv4 listen address</label>
+  <input class="form-control" type="text" name="ip4" placeholder="1.2.3.4">
+</div>
+
+<div class="form-group">
+  <label>IPv6 listen address</label>
+  <input class="form-control" type="text" name="ip6" placeholder="2001:be4:1234::1">
+</div>
+
+<p>You server will be available under a main hostname but may expose multiple public
+hostnames. Every e-mail domain that points to this server must have one of the
+hostnames in its <code>MX</code> record. Hostnames must be coma-separated.</p>
+
+<div class="form-group">
+  <label>Public hostnames</label>
+  <input class="form-control" type="text" name="hostnames" placeholder="my.host.name,other.host.name" multiple>
+</div>
+{% endcall %}

setup/templates/steps/flavor.html

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+{% call macros.panel("info", "Step 1 - pick a flavor") %}
+<p>Mailu comes in multiple "flavors". It was originally
+designed to run on top of Docker Compose but now offers multiple options
+including Docker Stack, Rancher, Kubernetes.</p>
+<p>Please note that "official" support, that is provided by the most active
+developpers, will mostly cover Compose and Stack, while other flavors are
+maintained by specific contributors.</p>
+
+<div class="radio">
+  {{ macros.radio("flavor", "compose", "Compose", "simply using Docker Compose manager") }}
+  {{ macros.radio("flavor", "stack", "Stack", "using stack deployments in a Swarm cluster") }}
+  {{ macros.radio("flavor", "rancher", "Rancher", "on top of the Rancher container manager") }}
+  {{ macros.radio("flavor", "kubernetes", "Kubernetes", "on top of the Kubernetes container manager") }}
+</div>
+
+{% endcall %}

setup/templates/steps/optional.html

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+{% call macros.panel("info", "Step 4 - enable optional features") %}
+<p>Mailu also comes with less common optional features that you might wish
+to enable.</p>
+
+<p>The DAV service enables contacts and calendar storage through Mailu,
+it is especially userful when synchronizing your desktop and mobile devices.</p>
+
+<div class="form-group">
+  <label>Enable the DAV service (and path to the DAV service)</label>
+  <div class="input-group">
+    <div class="input-group-addon"><input type="checkbox" name="dav_enabled" checked></div>
+    <input class="form-control" type="text" name="admin_path" value="/webdav">
+  </div>
+</div>
+
+{% endcall %}

setup/templates/steps/services.html

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+{% call macros.panel("info", "Step 3 - pick some features") %}
+<p>Mailu comes with multiple base features, including a specific admin
+interface, Web email clients (webmails), antispam, antivirus, etc. If you
+wish to disable some of these features, you are free to do so.</p>
+
+<p>The admin interface is the main Mailu-specific bit, it provides tools to
+manage your email domains, users, etc.</p>
+
+<div class="form-group">
+  <label>Enable the admin UI (and path to the admin UI)</label>
+  <div class="input-group">
+    <div class="input-group-addon"><input type="checkbox" name="admin_enabled" checked></div>
+    <input class="form-control" type="text" name="admin_path" value="/admin">
+  </div>
+</div>
+
+<p>Emails will be available through IMAP and POP3. You may also enable a Web
+email client. These do add some complexity but provide an easier way of
+accessing messages for beginner users.</p>
+
+<div class="form-group">
+  <label>Enable Web email client (and path to the Web email client)</label>
+  <div class="input-group">
+    <div class="input-group-addon"><input type="checkbox" name="webmail_enabled" checked></div>
+    <input class="form-control" type="text" name="webmail_path" value="/webmail">
+  </div>
+  <p></p>
+  <div class="radio">
+    {{ macros.radio("webmail_type", "roundcube", "RoundCube", "popular Webmail running on top of PHP") }}
+    {{ macros.radio("webmail_type", "rainloop", "Rainloop", "lightweight Webmail based on PHP, no database") }}
+  </div>
+</div>
+
+<p>Email filtering is a really important features. You can still disable it, which
+will prevent Mailu from doing spam filtering, virus filtering, and from applying
+white and blacklists that you may configure in the admin interface. You may
+also disable the antivirus if required (it does use aroung 1GB of ram).</p>
+
+<div class="form-check form-check-inline">
+  <label class="form-check-label">
+    <input class="form-check-input" type="checkbox" name="antispam_enabled" checked>
+    Enable the filtering service
+  </label>
+</div>
+<div class="form-check form-check-inline">
+  <label class="form-check-label">
+    <input class="form-check-input" type="checkbox" name="antivirus_enabled" checked>
+    Enable the antivirus service
+  </label>
+</div>
+
+{% endcall %}