create indexes in MongoDB at startup only if env variable (default: true)

[GorgiAstro]

Related Issue(s):

• "read-only" DB mode, and optional index creation #28

Description:

Create indexes in MongoDB at startup only if environment variable MONGO_CREATE_INDEXES is set to "true" (default when the env variable is not set: "true")

PR Checklist:

• [👍] Code is formatted and linted (run pre-commit run --all-files)
• [ 👎] Tests pass (run make test) : see below
• [N/A] Documentation has been updated to reflect changes, if applicable
• [👍] Changes are added to the changelog

The make test doesn't pass, first because the test makefile is still using docker compose v1 syntax (docker-compose), so it returns a command not found error. I opened an issue for that: #30

Even after changing docker-compose to docker compose, the tests don't run successfully, see log below. As this PR only introduces a minor change, I guess this issue is rather due to the compose v1->v2 migration.

wait-for-it-es.sh: waiting 45 seconds for mongo:27017
wait-for-it-es.sh: timeout occurred after waiting 45 seconds for mongo:27017
make: [Makefile:51: test] Error 124 (ignored)
docker compose down

[jonhealy1]

Looks good. Can you add something to the readme that explains this? Thank you.

[GorgiAstro]

Looks good. Can you add something to the readme that explains this? Thank you.

Done

[jonhealy1]

Nice work. Thank you!