[AUTO-BACKPORT 10138] feat: determined_master_host and friends helm support, better defaults

[github-actions]

Backport 4e374c3 from #10138.

[codecov]

Codecov Report

Attention: Patch coverage is 72.72727% with 18 lines in your changes missing coverage. Please review.

Project coverage is 54.26%. Comparing base (38ae54b) to head (0f827f7).
Report is 1 commits behind head on release-0.38.0.

Files with missing lines	Patch %	Lines
master/cmd/determined-master/root.go	75.55%	11 Missing ⚠️
master/internal/config/resource_manager_config.go	55.55%	4 Missing ⚠️
master/internal/rm/kubernetesrm/jobs.go	71.42%	2 Missing ⚠️
...nal/rm/kubernetesrm/kubernetes_resource_manager.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@                Coverage Diff                 @@
##           release-0.38.0   #10159      +/-   ##
==================================================
+ Coverage           54.25%   54.26%   +0.01%     
==================================================
  Files                1259     1259              
  Lines              157257   157276      +19     
  Branches             3641     3641              
==================================================
+ Hits                85313    85347      +34     
+ Misses              71811    71796      -15     
  Partials              133      133              

Flag	Coverage Δ
backend	45.91% <72.72%> (+0.04%)	⬆️
harness	71.15% <ø> (ø)
web	54.29% <ø> (ø)

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

Files with missing lines	Coverage Δ
master/internal/rm/kubernetesrm/job.go	77.31% <100.00%> (+0.97%)	⬆️
master/internal/rm/kubernetesrm/spec.go	84.64% <100.00%> (ø)
...nal/rm/kubernetesrm/kubernetes_resource_manager.go	27.67% <0.00%> (ø)
master/internal/rm/kubernetesrm/jobs.go	70.62% <71.42%> (+0.48%)	⬆️
master/internal/config/resource_manager_config.go	64.46% <55.55%> (-1.42%)	⬇️
master/cmd/determined-master/root.go	57.50% <75.55%> (+5.22%)	⬆️

... and 4 files with indirect coverage changes

[stoksc]

going to merge this over the know znode failures