<p>Hello I've been learning about Kubernetes but in a YAML file I found k8s-app as a label but when looking for an answer I really didn't find an accurate answer.
Please if someone has what does k8s-app stands for in YAML file help.</p>

<p>It doesn't stand for anything; it's just an older convention that has been superseded by the <a href="https://kubernetes.io/docs/concepts/overview/working-with-objects/common-labels/#labels" rel="noreferrer">new <code>app.kubernetes.io/</code> nomenclature</a></p>
<p>The old style was likely replaced by the new &quot;namespaced&quot; style to allow users to have their own <code>k8s-app:</code> or <code>instance:</code> or other &quot;common&quot; names without colliding with the labels that were used by the Deployment controllers for managing Pod lifecycles</p>
<p>tl;dr = it's not important what the text is, it's import that the text match up in the multiple places that reference it, as those labels are a contract between a few moving parts</p>
