Docker compose bug fix

[woop]

What this PR does / why we need it:

• Change docker compose file to use host based. This avoids having an inconsistency between default configuration and docker compose configuration.
• Fix bug with application.yml typo
• Fix port configuration bug for postgres

Which issue(s) this PR fixes:

Hopefully fixes all bugs in #652, but more changes are required to close the issue

Does this PR introduce a user-facing change?:

None

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[khorshuheng]

There is one concern though - host network mode only works on Linux host machine. Mac users will not be able to use this.

[woop]

There is one concern though - host network mode only works on Linux host machine. Mac users will not be able to use this.

Damnit I keep forgetting about that limitation. Isn't there a workaround that doesnt involve using private networks?

[khorshuheng]

The workaround i used personally, is to do port mapping on 9092 for Kafka. If i want to test using local jupyter notebook, i edit my etc hosts such that kafka:9092 points to localhost:9092 (so that it matches the advertised listener host). I do agree this is not a pretty workaround, though.

[woop]

Removed host networking.