chore: add the database container and DB initialization

docker/Dockerfile.database

@@ -0,0 +1,3 @@
+FROM postgres:17-alpine
+ADD legacyworlds-server/legacyworlds-server-data/db-structure /opt/lwsql
+ADD docker/init-sql.sh /docker-entrypoint-initdb.d

docker/compose.yml

@@ -2,6 +2,23 @@ name: lwb6
 
 services:
 
+  db:
+    build:
+      context: ../
+      dockerfile: docker/Dockerfile.database
+    restart: always
+    shm_size: 128mb
+    volumes:
+      - database:/var/lib/postgresql/data
+    environment:
+      LW_DB_NAME: ${LW_DB_NAME}
+      LW_DB_USER: ${LW_DB_USER}
+      LW_DB_USER_PASS_FILE: /run/secrets/lw_db_password
+      POSTGRES_PASSWORD_FILE: /run/secrets/db_password
+    secrets:
+      - db_password
+      - lw_db_password
+
   backend:
     build:
       context: ..
@@ -11,8 +28,8 @@ services:
     environment:
       LW_CONFIGURE: 1
       LW_DB_HOST: db
-      LW_DB_NAME: lwb6
-      LW_DB_USER: lwb6
+      LW_DB_NAME: ${LW_DB_NAME}
+      LW_DB_USER: ${LW_DB_USER}
       LW_DB_PASSWORD_FILE: /run/secrets/lw_db_password
     secrets:
       - lw_db_password
@@ -35,6 +52,11 @@ services:
     environment:
       LW_BACKEND_HOST: backend
 
+volumes:
+  database:
+
 secrets:
+  db_password:
+    environment: DB_PASSWORD
   lw_db_password:
     environment: LW_DB_PASSWORD

docker/env.example

@@ -1,5 +1,9 @@
 # Password for the database superuser
-DB_PASSWORD=hVVCS5cQG17aZBk32m0wDHAluvzgyj4n
+DB_PASSWORD=...
 
+# Legacyworlds database
+LW_DB_NAME=legacyworlds
+# Legacyworlds database user
+LW_DB_USER=legacyworlds
 # Legacyworlds database password
-LW_DB_PASSWORD=aXIQkMFFzjb4Ad7nvJgO5JhNtWxo62Du
+LW_DB_PASSWORD=...

docker/init-sql.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+set -e
+cd /opt/lwsql
+for var_name in `sed '/^.getenv/!d;s/.* //' database.sql`; do
+	echo "Checking variable $var_name" >&2
+	file_var_name="${var_name}_FILE"
+	eval file_var_value="\"\$$file_var_name\""
+	if [ ! -z "$file_var_value" ]; then
+		echo " -> Reading $var_name from $file_var_value" >&2
+		eval "export $var_name=\"`cat $file_var_value`\""
+	fi
+done
+psql -f database.sql