Migrated the Website service tooling to use PostgreSQL instead.

Services/Website/docker-compose.override.yml

@@ -23,31 +23,28 @@ services:
   # Local development database, started only with the `database` profile so a plain `docker compose up` still runs the
   # in-memory backend:
   #
-  #   docker compose --profile database up mariadb
-  mariadb:
-    image: mariadb:11
+  #   docker compose --profile database up postgres
+  postgres:
+    image: postgres:18
     container_name: ${HOST_OWNER:-loud}-db
     restart: unless-stopped
     profiles:
       - database
     ports:
-      - "127.0.0.1:${DATABASE_PORT:-3306}:3306"
+      - "127.0.0.1:${DATABASE_PORT:-5432}:5432"
     environment:
-      MARIADB_RANDOM_ROOT_PASSWORD: "yes"
-      MARIADB_DATABASE: ${DATABASE_NAME:-loud-ams}
-      MARIADB_USER: ${DATABASE_USERNAME:-loud-ams}
-      MARIADB_PASSWORD: ${DATABASE_PASSWORD:-loud-ams}
-      MARIADB_AUTO_UPGRADE: "1"
-    command:
-      - "--character-set-server=utf8mb4"
-      - "--collation-server=utf8mb4_unicode_ci"
+      POSTGRES_DB: ${DATABASE_NAME:-loud}
+      POSTGRES_USER: ${DATABASE_USERNAME:-loud}
+      POSTGRES_PASSWORD: ${DATABASE_PASSWORD:-loud}
     security_opt:
       - no-new-privileges:true
     healthcheck:
-      test: ["CMD", "healthcheck.sh", "--connect", "--innodb_initialized"]
+      test: ["CMD-SHELL", "pg_isready --username=$${POSTGRES_USER} --dbname=$${POSTGRES_DB}"]
       interval: 5s
       timeout: 5s
       retries: 10
       start_period: 30s
     volumes:
-      - ./Tests/DB:/var/lib/mysql
+      # postgres:18 keeps its data directory under /var/lib/postgresql/<major>/docker, so the whole
+      # /var/lib/postgresql tree is mounted — not the pre-18 /var/lib/postgresql/data path.
+      - ./Tests/DB:/var/lib/postgresql