docs: add missing common ENV variables to node experiment Tunables

[Yeongeunn]

Proposed changes

This PR adds the missing common ENV variables (STATUS_CHECK_DELAY, STATUS_CHECK_TIMEOUT, TERMINATION_GRACE_PERIOD_SECONDS) to the Experiment Tunables tables of all 8 node experiment docs.

These ENVs are defined in the litmus-go source code (under pkg/generic/<experiment>/types and environment) but were not documented in the mkdocs tables.

Added rows (with defaults from litmus-go):

• STATUS_CHECK_DELAY — Defaults to 2
• STATUS_CHECK_TIMEOUT — Defaults to 180
• TERMINATION_GRACE_PERIOD_SECONDS — Defaults to 0

Affected files:

• mkdocs/docs/experiments/categories/nodes/docker-service-kill.md
• mkdocs/docs/experiments/categories/nodes/kubelet-service-kill.md
• mkdocs/docs/experiments/categories/nodes/node-cpu-hog.md
• mkdocs/docs/experiments/categories/nodes/node-drain.md
• mkdocs/docs/experiments/categories/nodes/node-io-stress.md
• mkdocs/docs/experiments/categories/nodes/node-memory-hog.md
• mkdocs/docs/experiments/categories/nodes/node-restart.md
• mkdocs/docs/experiments/categories/nodes/node-taint.md

Fixes #5531

Types of changes

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• New feature (non-breaking change which adds functionality)
• Bugfix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices applies)

Checklist

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• I have read the CONTRIBUTING doc
• I have signed the commit for DCO to be passed.
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works (if appropriate)
• I have added necessary documentation (if appropriate)

Dependency

• N/A

Special notes for your reviewer:

This is a documentation-only change. The new ENV rows follow the same HTML table pattern already used in the Optional Fields section of each node experiment doc.

[Copilot]

Pull request overview

Adds documentation for three common environment variables used by node experiments so the “Experiment tunables” tables match the defaults/behavior implemented in litmus-go.

Changes:

• Document STATUS_CHECK_DELAY (default 2) across node experiment tunables.
• Document STATUS_CHECK_TIMEOUT (default 180) across node experiment tunables.
• Document TERMINATION_GRACE_PERIOD_SECONDS (default 0) across node experiment tunables.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
mkdocs/docs/experiments/categories/nodes/docker-service-kill.md	Adds missing common ENV tunables rows to the Optional Fields table.
mkdocs/docs/experiments/categories/nodes/kubelet-service-kill.md	Adds missing common ENV tunables rows to the Optional Fields table.
mkdocs/docs/experiments/categories/nodes/node-cpu-hog.md	Adds missing common ENV tunables rows to the Optional Fields table.
mkdocs/docs/experiments/categories/nodes/node-drain.md	Adds missing common ENV tunables rows to the Optional Fields table.
mkdocs/docs/experiments/categories/nodes/node-io-stress.md	Adds missing common ENV tunables rows to the Optional Fields table.
mkdocs/docs/experiments/categories/nodes/node-memory-hog.md	Adds missing common ENV tunables rows to the Optional Fields table.
mkdocs/docs/experiments/categories/nodes/node-restart.md	Adds missing common ENV tunables rows; table area also contains a malformed <code> tag in the LIB row (flagged in review).
mkdocs/docs/experiments/categories/nodes/node-taint.md	Adds missing common ENV tunables rows to the Optional Fields table.

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[PriteshKiri]

Hey @Yeongeunn
Could you please check the Co-Pilot review comments?

[PriteshKiri]

Hey @Yeongeunn
Any updates?

[Yeongeunn]

Hey @Yeongeunn Any updates?

Sorry for the late update!

I’ve addressed the Copilot review comment by fixing the broken HTML tag in the LIB row of node-restart.md.

Thanks for the reminder, and please let me know if anything else needs to be updated.