Docker documentation update

[ricardogsilva]

Overview

This PR adds documentation on how to use pycsw's official Docker image, which has recently been merged with #534

Related Issue / Discussion

#530
#534

Additional Information

Contributions and Licensing

(as per https://github.com/geopython/pycsw/blob/master/CONTRIBUTING.rst#contributions-and-licensing)

• I'd like to contribute [feature X|bugfix Y|docs|something else] to pycsw. I confirm that my contributions to pycsw will be compatible with the pycsw license guidelines at the time of contribution.
• I have already previously agreed to the pycsw Contributions and Licensing Guidelines

[codecov]

Codecov Report

Merging #547 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #547   +/-   ##
=======================================
  Coverage   55.93%   55.93%           
=======================================
  Files          29       29           
  Lines        6338     6338           
  Branches     1342     1342           
=======================================
  Hits         3545     3545           
  Misses       2413     2413           
  Partials      380      380

Flag	Coverage Δ
#integrationtests	54.57% <ø> (ø)	⬆️
#unittests	7.63% <ø> (ø)	⬆️

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[ricardogsilva]

@kalxas

This is now ready for review. However, it is dependent on merging #548, as some of the docs already mention the improvements of the other PR.

[ricardogsilva]

I've requested a review also from @tomkralidis as he seems to be in charge of docs ;)

[kalxas]

thanks @ricardogsilva I will review and merge #548 first

[tomkralidis]

@ricardogsilva really nice work here. I see you made the docker docs as its own page that is included by installation.rst. Should the Docker section simply be in installation.rst or should we have the docker page as a first order navigation (parallel to installation.rst)? I'd prefer the former latter given it covers both installing and deployment?

[tomkralidis]

Sorry I meant I prefer the latter.

[ricardogsilva]

@tomkralidis I wasn't sure where to put these new docs. Ended up putting them under installation but was kind of hoping for some direction. I'll move them to their own section then. Where would they fit in? Right after installation? After administration?

[tomkralidis]

@ricardogsilva let's go with right after installation?

[ricardogsilva]

OK, I'll update

[ricardogsilva]

@tomkralidis

I've made the change, ready for re-review

[tomkralidis]

Thanks @ricardogsilva!