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<h2>openrc <small>User authentication settings</small></h2>
<p><code>openrc</code> configures login credentials suitable for use
with the OpenStack command-line tools. <code>openrc</code> sources
<code>stackrc</code> at the beginning (which in turn sources
the <code>localrc</code> setion of <code>local.conf</code>) in
order to pick up <code>HOST_IP</code>
and/or <code>SERVICE_HOST</code> to use in the endpoints.
The values shown below are the default values.</p>
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<dl>
<dt>OS_TENANT_NAME</dt>
<dd>The introduction of Keystone to the OpenStack ecosystem has standardized the
term <em>tenant</em> as the entity that owns resources. In some places references
still exist to the original Nova term <em>project</em> for this use. Also,
<em>tenant_name</em> is preferred to <em>tenant_id</em>.
<pre>OS_TENANT_NAME=demo</pre></dd>
<dt>OS_USERNAME</dt>
<dd>In addition to the owning entity (tenant), Nova stores the entity performing
the action as the <em>user</em>.
<pre>OS_USERNAME=demo</pre></dd>
<dt>OS_PASSWORD</dt>
<dd>With Keystone you pass the keystone password instead of an api key.
Recent versions of novaclient use OS_PASSWORD instead of NOVA_API_KEYs
or NOVA_PASSWORD.
<pre>OS_PASSWORD=secrete</pre></dd>
<dt>HOST_IP, SERVICE_HOST</dt>
<dd>Set API endpoint host using <code>HOST_IP</code>. <code>SERVICE_HOST</code>
may also be used to specify the endpoint, which is convenient for
some <code>localrc</code> configurations. Typically, <code>HOST_IP</code>
is set in the <code>localrc</code> section.
<pre>HOST_IP=127.0.0.1
SERVICE_HOST=$HOST_IP</pre></dd>
<dt>OS_AUTH_URL</dt>
<dd>Authenticating against an OpenStack cloud using Keystone returns a <em>Token</em>
and <em>Service Catalog</em>. The catalog contains the endpoints for all services
the user/tenant has access to - including Nova, Glance, Keystone and Swift.
<pre>OS_AUTH_URL=http://$SERVICE_HOST:5000/v2.0</pre></dd>
<dt>GLANCE_HOST</dt>
<dd>Some exercises call Glance directly. On a single-node installation, Glance
should be listening on <code>HOST_IP</code>. If its running elsewhere
it can be set here.
<pre>GLANCE_HOST=$HOST_IP</pre></dd>
<dt>KEYSTONECLIENT_DEBUG, NOVACLIENT_DEBUG</dt>
<dd>Set command-line client log level to <code>DEBUG</code>. These are
commented out by default.
<pre># export KEYSTONECLIENT_DEBUG=1
# export NOVACLIENT_DEBUG=1</pre></dd>
</dl>
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