openstack-manuals/doc/common/section_dashboard-install.xml
Diane Fleming 64b6c9261e Folder rename, file rename, flattening of directories
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openstack-config 	config-reference	OpenStack Configuration Reference
openstack-ha 	        high-availability-guide	OpenStack High Availabilty Guide
openstack-image	        image-guide	OpenStack Virtual Machine Image Guide
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bug: #1220407

Change-Id: Id5ffc774b966ba7b9a591743a877aa10ab3094c7
author: diane fleming
2013-09-08 15:15:50 -07:00

228 lines
11 KiB
XML

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE section [
<!-- Some useful entities borrowed from HTML -->
<!ENTITY ndash "&#x2013;">
<!ENTITY mdash "&#x2014;">
<!ENTITY hellip "&#x2026;">
]>
<section xml:id="installing-openstack-dashboard"
xmlns="http://docbook.org/ns/docbook"
xmlns:xi="http://www.w3.org/2001/XInclude"
xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0">
<title>Install and configure the dashboard</title>
<para>Before you can install and configure the dashboard, meet the
requirements in <xref linkend="dashboard-system-requirements"/>.</para>
<para>For more information about how to deploy the dashboard, see <link
xlink:href="http://docs.openstack.org/developer/horizon/topics/deployment.html"
>Deploying Horizon</link>.</para>
<procedure>
<title>To install the dashboard</title>
<step>
<para>Install the dashboard on the node that can contact the
Identity Service as root:</para>
<screen os="ubuntu"><prompt>#</prompt> <userinput>apt-get install memcached libapache2-mod-wsgi openstack-dashboard</userinput></screen>
<screen os="rhel;centos;fedora"><prompt>#</prompt> <userinput>yum install memcached python-memcached mod_wsgi openstack-dashboard</userinput></screen>
</step>
<step>
<para>Modify the value of
<literal>CACHES['default']['LOCATION']</literal> in
<filename os="ubuntu"
>/etc/openstack-dashboard/local_settings.py</filename><filename
os="centos;fedora;rhel"
>/etc/openstack-dashboard/local_settings</filename> to match
the ones set in <filename os="ubuntu"
>/etc/memcached.conf</filename><filename
os="centos;fedora;rhel"
>/etc/sysconfig/memcached.conf</filename>.</para>
<para>Open <filename os="ubuntu"
>/etc/openstack-dashboard/local_settings.py</filename><filename
os="centos;fedora;rhel"
>/etc/openstack-dashboard/local_settings</filename> and look
for this line:</para>
<programlisting language="bash" linenumbering="unnumbered">CACHES = {
'default': {
'BACKEND' : 'django.core.cache.backends.memcached.MemcachedCache',
'LOCATION' : '127.0.0.1:11211'
}
}</programlisting>
<note xlink:href="#installing-openstack-dashboard"
xlink:title="Notes">
<title>Notes</title>
<itemizedlist>
<listitem>
<para>The address and port must match the ones set in
<filename os="ubuntu"
>/etc/memcached.conf</filename><filename
os="centos;fedora;rhel"
>/etc/sysconfig/memcached</filename>.</para>
<para>If you change the memcached settings, you must
restart the Apache web server for the changes to
take effect.</para>
</listitem>
<listitem>
<para>You can use options other than memcached option
for session storage. Set the session back-end
through the <parameter>SESSION_ENGINE</parameter>
option.</para>
</listitem>
<listitem>
<para>To change the timezone, use the dashboard or edit
the <filename os="centos;fedora;rhel"
>/etc/openstack-dashboard/local_settings</filename><filename
os="ubuntu"
>/etc/openstack-dashboard/local_settings.py</filename>
file.</para>
<para>Change the following parameter: <code>TIME_ZONE =
"UTC"</code>
</para>
</listitem>
</itemizedlist>
</note>
</step>
<step>
<para>Make sure that the web browser on your local machine supports
HTML5.</para>
<para>Enable cookies and JavaScript.</para>
<note>
<para>To use the VNC client with the dashboard, the browser must
support HTML5 Canvas and HTML5 WebSockets.</para>
<para>For details about browsers that support noVNC, see <link
xlink:href="https://github.com/kanaka/noVNC/blob/master/README.md"
>https://github.com/kanaka/noVNC/blob/master/README.md</link>,
and <link
xlink:href="https://github.com/kanaka/noVNC/wiki/Browser-support"
>https://github.com/kanaka/noVNC/wiki/Browser-support</link>.</para>
</note>
</step>
</procedure>
<para>You can configure the dashboard for a simple HTTP deployment
or a secured HTTPS deployment. While the standard installation
uses a non-encrypted HTTP channel, you can enable SSL support
for the dashboard.</para>
<procedure xml:id="dashboard-config-http">
<title>To configure the dashboard for HTTP</title>
<step>
<para>Specify the host for your OpenStack Identity
Service endpoint in the
<filename>/etc/openstack-dashboard/local_settings.py</filename>
file with the <literal>OPENSTACK_HOST</literal>
setting.</para>
<para>The following example shows this setting:</para>
<programlisting language="python"><?db-font-size 65%?><xi:include parse="text" href="samples/local_settings.py"/></programlisting>
<para>The service catalog configuration in the
Identity Service determines whether a service appears
in the dashboard. For the full listing, see <link
xlink:href="http://docs.openstack.org/developer/horizon/topics/settings.html"
>Horizon Settings and Configuration</link>.</para>
</step>
<step>
<para>Restart Apache and memcached:</para>
<screen><prompt>#</prompt> <userinput>service apache2 restart</userinput>
<prompt>#</prompt> <userinput>service memcached restart</userinput></screen>
</step>
</procedure>
<procedure xml:id="dashboard-config-https">
<title>To configure the dashboard for HTTPS</title>
<para>The following example uses the domain,
"http://openstack.example.com." Use a domain that fits
your current setup.</para>
<step>
<para>In<filename>/etc/openstack-dashboard/local_settings.py</filename>
update the following
directives:<programlisting>USE_SSL = True
CSRF_COOKIE_SECURE = True
SESSION_COOKIE_SECURE = True
SESSION_COOKIE_HTTPONLY = True</programlisting></para>
<para>The first option is required to enable HTTPS.
The other recommended settings defend against
cross-site scripting and require HTTPS.</para>
</step>
<step>
<para>Edit
<filename>/etc/apache2/ports.conf</filename>
and add the following line:</para>
<programlisting>NameVirtualHost *:443</programlisting>
</step>
<step>
<para>Edit
<filename>/etc/apache2/conf.d/openstack-dashboard.conf:</filename></para>
<para>Before:</para>
<programlisting><?db-font-size 65%?>WSGIScriptAlias / /usr/share/openstack-dashboard/openstack_dashboard/wsgi/django.wsgi
WSGIDaemonProcess horizon user=www-data group=www-data processes=3 threads=10
Alias /static /usr/share/openstack-dashboard/openstack_dashboard/static/
&lt;Directory /usr/share/openstack-dashboard/openstack_dashboard/wsgi&gt;
Order allow,deny
Allow from all
&lt;/Directory&gt;</programlisting>
<para>After:</para>
<programlisting><?db-font-size 65%?>&lt;VirtualHost *:80&gt;
ServerName openstack.example.com
&lt;IfModule mod_rewrite.c&gt;
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}
&lt;/IfModule&gt;
&lt;IfModule !mod_rewrite.c&gt;
RedirectPermanent / https://openstack.example.com
&lt;/IfModule&gt;
&lt;/VirtualHost&gt;
&lt;VirtualHost *:443&gt;
ServerName openstack.example.com
SSLEngine On
# Remember to replace certificates and keys with valid paths in your environment
SSLCertificateFile /etc/apache2/SSL/openstack.example.com.crt
SSLCACertificateFile /etc/apache2/SSL/openstack.example.com.crt
SSLCertificateKeyFile /etc/apache2/SSL/openstack.example.com.key
SetEnvIf User-Agent &quot;.*MSIE.*&quot; nokeepalive ssl-unclean-shutdown
# HTTP Strict Transport Security (HSTS) enforces that all communications
# with a server go over SSL. This mitigates the threat from attacks such
# as SSL-Strip which replaces links on the wire, stripping away https prefixes
# and potentially allowing an attacker to view confidential information on the
# wire
Header add Strict-Transport-Security "max-age=15768000"
WSGIScriptAlias / /usr/share/openstack-dashboard/openstack_dashboard/wsgi/django.wsgi
WSGIDaemonProcess horizon user=www-data group=www-data processes=3 threads=10
Alias /static /usr/share/openstack-dashboard/openstack_dashboard/static/
&lt;Directory /usr/share/openstack-dashboard/openstack_dashboard/wsgi&gt;
Order allow,deny
Allow from all
&lt;/Directory&gt;
&lt;/VirtualHost&gt;</programlisting>
<para>In this configuration, Apache listens on the
port 443 and redirects all the hits to the HTTPS
protocol for all the non-secured requests. The secured
section defines the private key, public key, and
certificate to use.</para>
</step>
<step>
<para>Restart Apache and memcached:</para>
<screen><prompt>#</prompt> <userinput>service apache2 restart</userinput>
<prompt>#</prompt> <userinput>service memcached restart</userinput></screen>
<para>If you try to access the dashboard through HTTP,
the browser redirects you to the HTTPS page.</para>
</step>
</procedure>
<procedure xml:id="adjust-vnc-window">
<title>To adjust the dimensions of the VNC window in the
Dashboard</title>
<para>The <filename>_detail_vnc.html</filename> file defines
the size of the VNC window. To change the window size, edit
this file.</para>
<step>
<para>Edit
<filename>/usr/share/pyshared/horizon/dashboards/nova/instances/templates/instances/_detail_vnc.html.</filename></para>
</step>
<step>
<para>Modify the <literal>width</literal> and
<literal>height</literal> parameters, as follows:</para>
<programlisting>&lt;iframe src="{{ vnc_url }}" width="720" height="430"&gt;&lt;/iframe&gt;</programlisting>
</step>
</procedure>
</section>