[doc] How to play with Grimoirelab components

[inishchith]

• Issue: [components] How to play with Grimoirelab components chaoss/grimoirelab-tutorial#84
• Pull Request: TBA

[inishchith]

Tools to explore + Task:

• Micro-Mordred
  • Add tutorial for using micro-mordred via docker-compose under chaoss/grimoirelab-tutorial

[inishchith]

@valeriocos Sharing the step. please let me know if I missed something out.

Steps:

1. I used the config along with the mariadb service as I do not have a local setup for db.
2. executed:docker-compose -f docker-compose.yml up
3. executed micro in another terminal instance:python3 micro.py --raw --enrich --cfg ./setup.cfg --backends git
4. tried : localhost:5601 for kibana dashboard

Issue: The elasticsearch instance not instantiating completely and lead the linked kibiter instance a Request timeout after 3000ms, leading to localhost:5601 having no response.

• The solution that worked for me was to try adjusting the ES_JAVA_OPTS parameter in the environment attribute in the docker config file for eg. ( -Xms1g -Xmx1g )
• I reached the solution via this easticsearch forum discussion

[inishchith]

Pull requests:

1. [micro-mordred] Add tutorial for exectution of Micro-Mordred via chaoss/grimoirelab-tutorial#87
2. [graal] Add Graal to the Sidebar chaoss/grimoirelab-tutorial#86

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