staging -> production: batch queue with on-demand instances

[solomon-negusse]

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What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this introduce a breaking change?

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Other information

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.18%. Comparing base (f93e363) to head (28714da).

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Additional details and impacted files

@@           Coverage Diff           @@
##           master     #591   +/-   ##
=======================================
  Coverage   81.18%   81.18%           
=======================================
  Files         129      129           
  Lines        5841     5842    +1     
=======================================
+ Hits         4742     4743    +1     
  Misses       1099     1099           

Flag	Coverage Δ
unittests	81.18% <100.00%> (+<0.01%)	⬆️

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