Allow changing the port in the healthcheck for the minidlna image

[Hadatko]

Not tested but i believe this may fix healthcheck
details: #246

[vladgh]

This will not work because it will try to parse an ENV variable when building the image. It needs to be escaped here so that it's parsed only when the container starts, with the variables passed at runtime if that's possible. I will look into how that works.

[Hadatko]

Hmm from what i readi i am not sure but answer is likely no change need be done or double $ (for compose solution i read that answer is $$)

[vladgh]

Can you please change your code to this:

HEALTHCHECK --interval=10s --timeout=10s --retries=6 CMD \
  curl --silent --fail 127.0.0.1:"${MINIDLNA_PORT:-8200}" || exit 1

I have done some tests, and it seems to work. I will merge it after you change it.

[Hadatko]

Sure. Great that it is working straightforward.

[Hadatko]

Done

[vladgh]

Thank you

[Hadatko]

Happy to help