Kubernetes Health Checks: Liveness vs. Readiness vs. Startup Probe

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▬▬▬▬▬▬▬ Timestamps ⏰ ▬▬▬▬▬▬▬
0:00 Intro
0:18 Liveness Probe
1:11 Readiness Probe
1:50 Startup Probe
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#kubernetes #docker #devops

[@AntonPutra]

🔴 - To support my channel, I’d like to offer Mentorship/On-the-Job Support/Consulting - [e-mail]

[@bhomiktakhar8226]

As usual, great content ... relevant on my job and cloud in general, keep educating ..thank you.

[@AntonPutra]

Thanks for keeping coming back!

[@MuthaNagavamsi]

Very important concept, nicely explained. Thanks for sharing.
I have a post scheduled on readiness probe tomorrow.

[@AntonPutra]

thanks!

[@vishwasdhanwani6134]

Thanks for the simple & easy explanation.
I'm still not clear with startup probe,
startup probe will delay liveness & readiness check? instead can't we just increase delay for them

[@AntonPutra]

Well, with an initial delay, you can set a fixed time for warm-up, for example, 60 seconds. A startup probe allows you to start testing immediately, for example, every 10 seconds, with a high failure threshold value. So potentially, if your app is ready quicker than the fixed time, it's more efficient.

[@varunj34]

0:34, so if it only kills the container, and not the pod, I don't follow how it ends up getting redeployed on another node.

[@AntonPutra]

my bad, liveness probe will restart the container, it will not by default reschedule it on another node

[@varunj34]

@@AntonPutra Okay cool. just wanted to make sure I am not missing something. Thanks for replying!