Add devfile, CONTRIBUTING.md file, set up image build for dev container.

[AndrienkoAleksandr]

What does this PR do?

Add devfile, CONTRIBUTING.md file, set up image build for dev container.

What issues does this PR fix or reference?

eclipse-che/che#14126

WARNING: DEPENDS ON PR => eclipse-che/che-devfile-registry#79

Signed-off-by: Oleksandr Andriienko oandriie@redhat.com

[codecov]

Codecov Report

Merging #68 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master     #68   +/-   ##
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  Coverage    66.6%   66.6%           
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  Files           6       6           
  Lines         569     569           
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  Hits          379     379           
  Misses        165     165           
  Partials       25      25

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[nickboldt]

s/CHE/Che/g. It's not an acronym, and you shouldn't be SHOUTING. :)

[nickboldt]

Again, it's Eclipse Che, not CHE! Shh. No yelling. :)

Please fix all refs to CHE. Don't want to confuse people with all the acronym possibilities https://www.abbreviations.com/CHE

[nickboldt]

Seems reasonable other than the comments about CHE vs. Che.

Though I wish the build process for the two brokers produced a single image, instead of having to have two.

[amisevsk]

Great contribution @AndrienkoAleksandr! This is very useful.

I've built the image and tested the devfile on Che, and everything is working as expected.

I've added a few optional suggestions below (mostly typos, etc.)

[AndrienkoAleksandr]

I fixed typo, for tasks used make, removed generation test config with list plugins(reused already existed in the source code).

[AndrienkoAleksandr]

Though I wish the build process for the two brokers produced a single image, instead of having to have two.

I like your idea and I believe it would make things simpler but I don't think that it can be done really easily in a scope of my issue[1], which goal is to add contribution.md and devfile for developing Plugin Broker in current state.

@amisevsk @sleshchenko WDYT?
@nickboldt Would you mind to create a separate issue to implement such an improvement or do you think it blocks this PR?

[1] eclipse-che/che#14126

[nickboldt]

Would you mind to create a separate issue to implement such an improvement or do you think it blocks this PR?

Done. eclipse-che/che#14296

Does not block this PR.