Fix #8 by removing postgres port map#16
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We don’t need to expose the postgres port on the host. The containers communicate via their own ports on the bridge network. Exposing the postgres port on `5432` can lead to port clashes with existing postgres instances. If we want to expose postgres, we should do it on something like port `54321`, *but* we don’t need to change the connect strings etc elsewhere as they still communicate via `5432` on the bridge network.
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We don’t need to expose the postgres port on the host. The containers communicate via their own ports on the bridge network. Exposing the postgres port on
5432can lead to port clashes with existing postgres instances. If we want to expose postgres, we should do it on something like port54321, but we don’t need to change the connect strings etc elsewhere as they still communicate via5432on the bridge network.It would be good for someone else to verify that this still works before merging.