chore: nil check when creating stressor

[STRRL]

Signed-off-by: STRRL str_ruiling@outlook.com

What problem does this PR solve?

close #2654

What's changed and how it works?

Related changes

• Need to update chaos-mesh/website
• Need to update Dashboard UI
• Need to cheery-pick to release branches
  • release-2.1
  • release-2.0

Checklist

Tests

• Unit test
• E2E test
• No code
• Manual test (add steps below)

Side effects

• Breaking backward compatibility

Release note

Please add a release note.

You can safely ignore this section if you don't think this PR needs a release note.

DCO

If you find the DCO check fails, please run commands like below (Depends on the actual situations. For example, if the failed commit isn't the most recent) to fix it:

git commit --amend --signoff
git push --force

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• WangXiangUSTC
• g1eny0ung

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

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[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (release-2.0@a2d2762). Click here to learn what that means.
The diff coverage is n/a.

@@              Coverage Diff               @@
##             release-2.0    #2655   +/-   ##
==============================================
  Coverage               ?   42.85%           
==============================================
  Files                  ?      128           
  Lines                  ?     8882           
  Branches               ?        0           
==============================================
  Hits                   ?     3806           
  Misses                 ?     4745           
  Partials               ?      331           

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[STRRL]

PTAL

/cc @chaos-mesh/committers @chaos-mesh/maintainers

[g1eny0ung]

LGTM

[WangXiangUSTC]

LGTM

[YangKeao]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 14cd144

[STRRL]

/run-e2e-tests

[STRRL]

/run-e2e-tests

[STRRL]

/run-e2e-tests

:(

[STRRL]

/run-e2e-tests

[STRRL]

/merge

[ti-chi-bot]

@STRRL: Your PR was out of date, I have automatically updated it for you.

At the same time I will also trigger all tests for you:

/run-all-tests

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.

[STRRL]

/merge