https://aalvrz.me/tags/keystone/ Recent content in keystone on Andrés Álvarez Hugo -- gohugo.io en-us Fri, 28 Oct 2016 00:00:00 +0000 https://aalvrz.me/posts/keystone-interface-in-juju-charms/ Fri, 28 Oct 2016 00:00:00 +0000 https://aalvrz.me/posts/keystone-interface-in-juju-charms/ <p><a href="https://jujucharms.com/docs/1.18/authors-interfaces">Juju Charms interfaces</a> make possible the interaction and exchange of data between services deployed by Juju. In this post I will explain how we can use the Keystone interface to make our custom charm service comunicate with the Keystone service within a Juju environment.</p> <p>In the end, what we really want to achieve, is to link both services so that they can exchange data, using a Juju command:</p> <p><code>juju add-relation keystone myservice</code></p> <h2 id="juju-relations">Juju Relations</h2> <p>Juju relations operate behind the concept that one service provides something, while another service requires it, and the interaction between the services is done through an <strong>interface</strong>. Since we want to interact with Keystone, this means that we need to use a suitable keystone interface that allows us to get what we need, the <em>keystone Identity data</em>. For this, we use the <strong><a href="https://git.launchpad.net/~canonical-is/charms/+source/interface-keystone-admin">keystone-admin interface</a></strong>.</p> <p>With this in mind, we configure our charm to require this relation and interface in <code>metadata.yaml</code>:</p> <div class="highlight"><pre style="color:#272822;background-color:#fafafa;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#75715e"># ...</span> requires<span style="color:#111">:</span> identity-admin<span style="color:#111">:</span> interface<span style="color:#111">:</span> keystone-admin </code></pre></div> https://aalvrz.me/posts/keystone-interface-in-juju-charms/ Fri, 28 Oct 2016 00:00:00 +0000 https://aalvrz.me/posts/keystone-interface-in-juju-charms/ <p><a href="https://jujucharms.com/docs/1.18/authors-interfaces">Juju Charms interfaces</a> make possible the interaction and exchange of data between services deployed by Juju. In this post I will explain how we can use the Keystone interface to make our custom charm service comunicate with the Keystone service within a Juju environment.</p> <p>In the end, what we really want to achieve, is to link both services so that they can exchange data, using a Juju command:</p> <p><code>juju add-relation keystone myservice</code></p> <h2 id="juju-relations">Juju Relations</h2> <p>Juju relations operate behind the concept that one service provides something, while another service requires it, and the interaction between the services is done through an <strong>interface</strong>. Since we want to interact with Keystone, this means that we need to use a suitable keystone interface that allows us to get what we need, the <em>keystone Identity data</em>. For this, we use the <strong><a href="https://git.launchpad.net/~canonical-is/charms/+source/interface-keystone-admin">keystone-admin interface</a></strong>.</p> <p>With this in mind, we configure our charm to require this relation and interface in <code>metadata.yaml</code>:</p> <div class="highlight"><pre style="color:#272822;background-color:#fafafa;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#75715e"># ...</span> requires<span style="color:#111">:</span> identity-admin<span style="color:#111">:</span> interface<span style="color:#111">:</span> keystone-admin </code></pre></div>