make template configurable for lxc director

[nl5887]

[codecov-io]

Codecov Report

Merging #478 into master will not change coverage. The diff coverage is n/a.

@@          Coverage Diff          @@
##           master   #478   +/-   ##
=====================================
  Coverage      42%    42%           
=====================================
  Files          82     82           
  Lines        8960   8960           
=====================================
  Hits         3764   3764           
  Misses       4749   4749           
  Partials      447    447

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