fix: add optional flag for hostname fix #6278

[yyadavalli]

What type of PR is this?

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #6278

Release Notes: Yes/No

[arkodg]

@yyadavalli above tag may not be used in docs, you may need to use // +optional to populate the docs column

[yyadavalli]

@yyadavalli above tag may not be used in docs, you may need to use // +optional to populate the docs column

Ack, will use the other tag

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.49%. Comparing base (402cd99) to head (9d4e088).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6279      +/-   ##
==========================================
- Coverage   70.52%   70.49%   -0.03%     
==========================================
  Files         220      220              
  Lines       36639    36639              
==========================================
- Hits        25838    25828      -10     
- Misses       9276     9282       +6     
- Partials     1525     1529       +4     

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[arkodg]

LGTM thanks