.</td></tr><tr><td><code>CTX_R2_Z3</code></td><td>The context used to interact with pods in <code>region2.zone3</code>.</td></tr><tr><td><code>CTX_R3_Z4</code></td><td>The context used to interact with pods in <code>region3.zone4</code>.</td></tr></tbody></table><h2 id=create-the-sample-namespace>Create the <code>sample</code> namespace</h2><p>To begin, generate yaml for the <code>sample</code> namespace with automatic sidecar
injection enabled:</p><pre><code class=language-bash data-expandlinks=true data-r