-repo=istio>source_workload: source.workload.name | &#34;unknown&#34;
</code></pre></li><li><p><strong>Source Workload Namespace</strong>: This identifies the namespace of the source
workload.</p><pre><code class=language-yaml data-expandlinks=true data-repo=istio>source_workload_namespace: source.workload.namespace | &#34;unknown&#34;
</code></pre></li><li><p><strong>Source Principal</strong>: This identifies the peer principal of the traffic source.
It is set when peer authentication is used.</p><pre><cod