---
title: "💭 Configure Liveness, Readiness and Startup Probes | Kubernetes"
description: "!https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/"
date: 2024-03-15
published: true
tags:
  - k8s
  - kubernetes
  - thought
template: link
---


<div class="embed-card embed-card-external">
  <a href="https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/" class="embed-card-link" target="_blank" rel="noopener noreferrer">
    <div class="embed-card-image">
      <img src="/images/kubernetes-open-graph.png" alt="Configure Liveness, Readiness and Startup Probes — This page shows how to configure liveness, readiness and startup probes for containers.
For more information about probes, see Liveness, Readiness and Startup Probes.
Before you begin You need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster. It is recommended to run this tutorial on a cluster with at least two nodes that are not acting as control plane hosts." loading="lazy">
    </div>
    <div class="embed-card-content">
      <div class="embed-card-title">Configure Liveness, Readiness and Startup Probes</div>
      <div class="embed-card-description">This page shows how to configure liveness, readiness and startup probes for containers.
For more information about probes, see Liveness, Readiness and Startup Probes.
Before you begin You need to h...</div>
      <div class="embed-card-meta">Kubernetes &middot; kubernetes.io</div>
    </div>
  </a>
</div>


What is the difference between health, liveness, readiness, and startup?  This article does a great job at a full writeup description of how it works in kubernetes, here is my TLDR.



* health 200 OK - I'm still responding to requests
* health ERR - something happened and I cant respond to requests

* liveness 200 OK - I'm ready for more work
* liveness ERR - I'm still responding to requests, and i'm already working send requests to another pod, or scale up


## Z-pages

These probes are commonly deployed at `/healthz` and `/livez` endpoints.

Why the z?

z is a convention that comes from google for meta endpoints to reduce conflict with actual endpoints, and can be deployed to any application.

!!! note

    This post is a <a href="/thoughts/" class="wikilink" data-title="Thoughts" data-description="These are generally my thoughts on a web page or some sort of url, except a rare few don&#39;t have a link. These are dual published off of my..." data-date="2024-04-01">thought</a>. It's a short note that I make
    about someone else's content online <a href="/tags/thoughts/" class="hashtag-tag" data-tag="thoughts" data-count=2 data-reading-time=3 data-reading-time-text="3 minutes">#thoughts</a>