Add ignoreDrainFailure and DrainTimeout as controller arguments

[shreyas-badiger]

• unit testing
• manual testing

[codecov]

Codecov Report

Merging #300 (2395d2d) into controller-v2 (15007b3) will decrease coverage by 0.12%.
The diff coverage is 25.00%.

@@                Coverage Diff                @@
##           controller-v2     #300      +/-   ##
=================================================
- Coverage          36.80%   36.67%   -0.13%     
=================================================
  Files                  7        7              
  Lines                663      668       +5     
=================================================
+ Hits                 244      245       +1     
- Misses               401      405       +4     
  Partials              18       18              

Flag	Coverage Δ
unittests	36.67% <25.00%> (-0.13%)	⬇️

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

Impacted Files	Coverage Δ
controllers/common/utils.go	0.00% <0.00%> (ø)
controllers/rollingupgrade_controller.go	0.00% <ø> (ø)
controllers/upgrade.go	40.41% <40.00%> (+0.05%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 15007b3...2395d2d. Read the comment docs.