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CLD-C0084 · Kubernetes Operations

Liveness, Readiness and Startup Probes

Explain the three probes as a note. Do not delete a probe, and do not apply a manifest during the reading.

Updated 25 October 2026 · Explainer

This is an original planning guide. It is not a vendor manual, an official standard, or legal advice. Example addresses use documentation ranges. Review every command before you paste it.

What this hour is for

Liveness, Readiness and Startup Probes names which probe answers which question. A sample path is a sample. You do not remove a probe to make a pod look ready, and you do not kubectl apply.

Write the account, project, or repository you administer, the name of this change, and the time. A second change waits until this line has been read back.

The browser tool drafts text or reads a paste you already hold. It does not log in, it does not scan, and it does not apply.

192.0.2.10/24, gateway 192.0.2.1, 198.51.100.0/24, 203.0.113.0/24, and 2001:db8::/32 are documentation. example.com is a documentation name. A sample password is replaced.

The change you can finish

Apply nothing while you are writing the note. When the lab window opens, it is one change on the account named in the ticket. Read the draft, then the account, then decide.

Rollback is the previous file, the previous plan, or the lab resource you can delete because it was only a lab.

  1. Write the cluster and the workload, or say it is a sketch.
  2. Name the three probes in one line each.
  3. Mark which one this ticket is about.
  4. Do not apply.
  5. Do not delete a probe.
  6. Stop.

Mistakes that outlive the statement

Liveness, Readiness and Startup Probes goes wrong in a small set of ways. The list is here so the ticket can forbid them before the window.

Decisions to write down

One decision for Liveness, Readiness and Startup Probes: The workload is yours or a sketch. Nothing is applied. No probe is deleted. One workload is the window. And the path is labelled sample or real.

Checks before you call it done

Confirm this before you call the change done: The workload or sketch is written. Nothing was applied. No probe was deleted. The three lines exist. And a second person can say which probe the ticket means. If one of those fails, stop.

# Probe note. Do not delete a probe. Do not apply during the reading.

Before you leave the account

Liveness, Readiness and Startup Probes ends when the account in the note is the account in the ticket. If it is not, stop.

The draft stays a draft until a person has read the names in it. A generator does not log in, does not apply, and does not scan.

192.0.2.10/24, gateway 192.0.2.1, 198.51.100.0/24, 203.0.113.0/24, and 2001:db8::/32 are documentation. example.com is a documentation name. A sample password is replaced. It is not a password you keep. 10.0.0.0/16 is a sample prefix, not a network you publish unless you already use it.

prompt-for-this is a reminder that a secret is missing. It is not an access key, a token, or a password you save. An Azure secret draft may contain a sample password. Replace it. Do not file it.

One change is the window. If two things move and the result is wrong, you will not know which one did it.

If the same step fails twice, stop for the day. Restore the copy you took first.

A second person reads the account and the change aloud. If they cannot find them in the ticket, the note is not done.

This page is a planning guide. It is not a vendor manual, not an official standard, not legal advice, and not an audit opinion. You do not apply it against an account you do not administer.

Tools for this guide

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More in this cluster

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