🦠In a recent study, scientists have concluded that the Coronavirus also infects the Kubernetes pods 🤯
🩺 That is why we need to do Health Check for Kubernetes! Of course, I was kidding; but a health check or probe is indeed a method of checking the health of a Kubernetes pod.
🩹 What is Health Check or Kubernetes Probe? The process of checking the ‘health’ of Kubernetes to see if they are working correctly and receiving traffic is health checks, a.k.a, probes.
♻️ Lifecycle of a Pod Check out the states in a lifecycle of a Kubernetes Pod:
Running: The Running status states that a container is executing successfully.
Terminated: The termination state of a container is caused by either completion or failure from the running state.
Waiting: A container is Waiting when it is neither in Running nor in the Terminated state. ❓
Why do we need Kubernetes Probes?
K8s checks individual containers’ health to ascertain the overall pod health. But, with probes, we can determine whether a container is dead or alive and decide if K8 s should momentarily halt other containers from accessing it.
🤓 Fancy to see them in action with some cool graphics? Check this blog out https://k21academy.com/kubernetes52 where we have covered the following topics with a complete hands-on:
➪ What are health check probes?
➪ Lifecycle of a Kubernetes Pod
➪ Why are Kubernetes Probes Important?
➪ Types of Probes
➪ Liveness Probe
➪ Readiness Probe
➪ How to Create Kubernetes Probes?
➪ Create LivenessProbe
➪ Create ReadinessProbe
If you are an Admin, Architect, or Tester, then attend the FREE Class for Docker & Kubernetes Administrator (CKA) 👉 K21academy.com/kubernetes02
FREE Telegram group at https://t.me/k21dockerkubernetes
Oracle ACE, Author, Speaker and Founder of K21 Technologies & K21 Academy : Specialising in Design, Implement, and Trainings.