fix: only expose postgres to other containers

compose.yaml

@@ -46,8 +46,8 @@ services:
       - POSTGRES_USER=postgres
       - POSTGRES_PASSWORD=postgres
       - POSTGRES_DB=spacetraders
-    ports:
-      - "5432:5432"
+    # Only expose the port to other containers.
+    expose: [5432]
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U postgres"]
       interval: 5s

cspell.config.yaml

@@ -59,4 +59,5 @@ words:
   - chalkdart
   - cirruslabs
   - pubspec
-  - templating
+  - templating
+  - PGHOST

packages/cli/Dockerfile

@@ -22,7 +22,7 @@ WORKDIR /app/cli
 RUN dart pub get --offline
 
 RUN mkdir -p /app/bin
-RUN dart compile exe bin/${BIN}.dart -o /app/bin/server
+RUN dart compile exe -DPGHOST=db bin/${BIN}.dart -o /app/bin/server
 
 # Build minimal serving image from AOT-compiled `/server` and required system
 # libraries and configuration files stored in `/runtime/` from the build stage.

packages/db/lib/config.dart

@@ -3,7 +3,7 @@ import 'package:postgres/postgres.dart' as pg;
 // TODO(eseidel): Move this up to cli/config.dart.
 /// Default database config for connecting to a local postgres database.
 pg.Endpoint defaultDatabaseEndpoint = pg.Endpoint(
-  host: 'db',
+  host: const String.fromEnvironment('PGHOST', defaultValue: 'localhost'),
   username: 'postgres',
   password: 'postgres',
   database: 'spacetraders',