hostport network not ready when no ports exist

[chrisliu1995]

No description provided.

[kruise-bot]

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[codecov-commenter]

Codecov Report

Merging #100 (5ac4d64) into master (4d003d6) will decrease coverage by 0.08%.
The diff coverage is 0.00%.

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@@            Coverage Diff             @@
##           master     #100      +/-   ##
==========================================
- Coverage   31.32%   31.24%   -0.08%     
==========================================
  Files          19       19              
  Lines        2503     2509       +6     
==========================================
  Hits          784      784              
- Misses       1674     1680       +6     
  Partials       45       45              

Flag	Coverage Δ
unittests	31.24% <0.00%> (-0.08%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
cloudprovider/kubernetes/hostPort.go	8.91% <0.00%> (-0.22%)	⬇️

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[ringtail]

/LGTM