[$40] Make rocket.chat and vanilla configurable

[jmgasper]

@atelomycterus - One thing we'd like to do here is to add configurability for the different services.

Something like:

• ROCKETCHAT_ENABLED = true / false
• VANILLA_ENABLED = true / false

If a specific service is disabled, we won't create a forum / group for that service when a new challenge comes through.

As an example, right now we're focused on Vanilla and want to turn Rocket.chat off in the deployed processor. We may want to turn Rocket.chat back on in the future.

[jmgasper]

Contest https://www.topcoder.com/challenges/30125380 has been created for this ticket.

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[jmgasper]

Contest https://www.topcoder.com/challenges/30125380 has been updated - it has been assigned to obog.

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[atelomycterus]

@jmgasper Please apply PR - https://github.com/topcoder-platform/challenge-forum-processor/pull/23. Fixed code. Default settings:

  ROCKETCHAT_ENABLED: false,
  VANILLA_ENABLED: true,

If ROCKETCHAT_ENABLED: false and VANILLA_ENABLED: false, then 'No enabled services to handle messages' is logged in kafka logs.

Fixed docker composer files. Vanilla services - vanilla.yml, Rocketchat services - rocketchat.yml.

Testing:

1. Run docker-compose down before pulling the repo

2. Pull the repo

3. Run Kafka, Vanilla only docker-compose -f docker-compose.yml -f vanilla.yml up

Other commands: Run Kafka, Vanilla and Rocketchat docker-compose -f docker-compose.yml -f vanilla.yml -f rocketchat.yml up

Run Kafka and Rocketchat docker-compose -f docker-compose.yml -f rocketchat.yml up

[jmgasper]

Payment task has been updated: https://software.topcoder.com/review/actions/ViewProjectDetails?pid=30125380

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