feat(docker): dockerfile for production

[DinoSourcesRex]

What:

• A Production.Dockerfile with 3 stages:
  • npm_builder so that docker can cache the npm install command so it is not re-run every time you make small code changes.
  • builder which will run build:prod
  • production which is the final image and will take a fresh node:11.1.0 image, copy the necessary files from the builder stage and then run node server.js
• A Production.docker-compose.yml which can be used to run and build the Production.Dockerfile. This can be run with docker-compose -f Production.docker-compose.yml up
• Updates to server.js which will take the port and context from environment variables, if those variables exist. Should not be a breaking change.

  • An update to remove the / and append it on CONTEXT instead so that I can control click the url from my VSCode terminal 😄

    Issue number: #385

[codecov-io]

Codecov Report

Merging #425 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #425   +/-   ##
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  Coverage   87.77%   87.77%           
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  Files          67       67           
  Lines         990      990           
  Branches       41       41           
=======================================
  Hits          869      869           
  Misses        103      103           
  Partials       18       18

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[tomastrajan]

@DinoSourcesRex thank you very much for your contribution!

[tomastrajan]

@DinoSourcesRex could you please also update README.md with relevant information for other users ?

[DinoSourcesRex]

@tomastrajan Let me know how that looks.

I can go into more depth on what can be changed by the docker-file if that's something you would like me to do (or add some comments into the dockerfile) - the main things I did not touch upon were changing the environment variables or the port it is being served on, which may be useful.

I've also added some npm scripts to run the production docker commands as they are a bit long-winded.

[tomastrajan]

@DinoSourcesRex I think its pretty great thank you!