Add k8s_log module

[fabianvf]

SUMMARY

Adds the k8s_log module, which allows you to pull logs from any resource that supports the /log endpoint (mostly just Pods I think).

ISSUE TYPE

• New Module Pull Request

COMPONENT NAME

k8s_log

ADDITIONAL INFORMATION

I've added a test (and verified it worked locally), but it requires a real kubernetes cluster, not just the api server, so I didn't include it from the existing test playbooks.

[geerlingguy]

@fabianvf - If you get a chance, can you rebase, just to make sure tests pass? I'm still working on the new kind-cluster-based tests, but at least the tests should pass since #13 is resolved.

[codecov-io]

Codecov Report

Merging #16 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #16   +/-   ##
=======================================
  Coverage   43.28%   43.28%           
=======================================
  Files           3        3           
  Lines         536      536           
  Branches      109      109           
=======================================
  Hits          232      232           
  Misses        261      261           
  Partials       43       43

Flag	Coverage Δ
#_	43.28% <ø> (ø)	⬆️

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[fabianvf]

@geerlingguy think I fixed everything, ready for review again

[geerlingguy]

LGTM, if tests pass we can merge it!