Adds missing config file

[DanRoscigno]

The docs for this lab mention the Postgres bootstrap file, but do not provide instructions for downloading it. This PR adds a configs section to the docker-compose.yml and mounts the config in the right place.

It also corrects the healthcheck for Postgres, it was looking for the wrong database.

Original log from the Postgres service

postgres  | PostgreSQL init process complete; ready for start up.
postgres  |
postgres  | 2024-04-30 18:01:45.268 UTC [1] LOG:  starting PostgreSQL 16.2 (Debian 16.2-1.pgdg110+2) on aarch64-unknown-linux-gnu, compiled by gcc (Debian 10.2.1-6) 10.2.1 20210110, 64-bit
postgres  | 2024-04-30 18:01:45.268 UTC [1] LOG:  listening on IPv4 address "0.0.0.0", port 5432
postgres  | 2024-04-30 18:01:45.268 UTC [1] LOG:  listening on IPv6 address "::", port 5432
postgres  | 2024-04-30 18:01:45.271 UTC [1] LOG:  listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
postgres  | 2024-04-30 18:01:45.272 UTC [64] LOG:  database system was shut down at 2024-04-30 18:01:45 UTC
postgres  | 2024-04-30 18:01:45.274 UTC [1] LOG:  database system is ready to accept connections
postgres  | 2024-04-30 18:01:46.332 UTC [75] FATAL:  database "shipment_db" does not exist

Updated log showing the creation of the orders table in the pandashop DB

postgres  | 2024-04-30 18:47:15.426 UTC [48] LOG:  database system is ready to accept connections
postgres  |  done
postgres  | server started
postgres  | CREATE DATABASE
postgres  |
postgres  |
postgres  | /usr/local/bin/docker-entrypoint.sh: sourcing /docker-entrypoint-initdb.d/init-permissions.sh
postgres  |
postgres  | /usr/local/bin/docker-entrypoint.sh: running /docker-entrypoint-initdb.d/postgres_bootstrap.sql
postgres  | CREATE TABLE
postgres  | INSERT 0 1
postgres  | INSERT 0 1
postgres  | INSERT 0 1
postgres  | INSERT 0 1
postgres  | INSERT 0 1
postgres  |
postgres  |
postgres  | 2024-04-30 18:47:15.591 UTC [48] LOG:  received fast shutdown request
postgres  | waiting for server to shut down....2024-04-30 18:47:15.592 UTC [48] LOG:  aborting any active transactions
postgres  | 2024-04-30 18:47:15.593 UTC [48] LOG:  background worker "logical replication launcher" (PID 54) exited with exit code 1
postgres  | 2024-04-30 18:47:15.593 UTC [49] LOG:  shutting down
postgres  | 2024-04-30 18:47:15.596 UTC [49] LOG:  checkpoint starting: shutdown immediate
postgres  | 2024-04-30 18:47:15.618 UTC [49] LOG:  checkpoint complete: wrote 932 buffers (5.7%); 0 WAL file(s) added, 0 removed, 0 recycled; write=0.007 s, sync=0.014 s, total=0.025 s; sync files=304, longest=0.006 s, average=0.001 s; distance=4272 kB, estimate=4272 kB; lsn=0/19DA968, redo lsn=0/19DA968
postgres  | 2024-04-30 18:47:15.620 UTC [48] LOG:  database system is shut down
postgres  |  done
postgres  | server stopped
postgres  |
postgres  | PostgreSQL init process complete; ready for start up.
postgres  |
postgres  | 2024-04-30 18:47:15.701 UTC [1] LOG:  starting PostgreSQL 16.2 (Debian 16.2-1.pgdg110+2) on aarch64-unknown-linux-gnu, compiled by gcc (Debian 10.2.1-6) 10.2.1 20210110, 64-bit
postgres  | 2024-04-30 18:47:15.701 UTC [1] LOG:  listening on IPv4 address "0.0.0.0", port 5432
postgres  | 2024-04-30 18:47:15.701 UTC [1] LOG:  listening on IPv6 address "::", port 5432
postgres  | 2024-04-30 18:47:15.713 UTC [1] LOG:  listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
postgres  | 2024-04-30 18:47:15.721 UTC [66] LOG:  database system was shut down at 2024-04-30 18:47:15 UTC
postgres  | 2024-04-30 18:47:15.722 UTC [1] LOG:  database system is ready to accept connections

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[DanRoscigno]

It looks like this is fixed in main, closing.