Add Docker compose support for Postgres

database/.gitignore

@@ -0,0 +1,2 @@
+docker-db-data/*
+docker-pg-db-data/*

database/docker-db-data/.gitignore

@@ -1,3 +0,0 @@
-*
-*/
-!.gitignore

database/postgres-scripts/create-db-and-admin-user.sql

@@ -1,3 +1,4 @@
+CREATE DATABASE cosmic;
 CREATE USER cosmic_admin WITH ENCRYPTED PASSWORD 'redsnailshell';
 GRANT ALL PRIVILEGES ON DATABASE cosmic TO cosmic_admin;
 ALTER ROLE cosmic_admin WITH CREATEROLE;

docker-compose.yml

@@ -4,6 +4,7 @@ services:
     build: .
     depends_on:
       - db
+      - pg_db
     ports:
       # Login server
       - "8484:8484"
@@ -19,6 +20,7 @@ services:
       - ./wz:/opt/server/wz
     environment:
       DB_HOST: "db"
+      PG_DB_HOST: "pg_db"
     
   db:
     image: mysql:8.0.23
@@ -30,3 +32,11 @@ services:
     volumes:
       - ./database/docker-db-data:/var/lib/mysql
       - ./database/sql:/docker-entrypoint-initdb.d
+
+  pg_db:
+    image: postgres:15.0
+    environment:
+      POSTGRES_PASSWORD: postgres
+    volumes:
+      - ./database/docker-pg-db-data:/var/lib/postgresql/data
+      - ./database/postgres-scripts:/docker-entrypoint-initdb.d

src/main/java/database/migration/FlywayRunner.java

@@ -16,6 +16,8 @@ public class FlywayRunner {
                 .dataSource(dbConfig.getJdbcUrl(), dbConfig.adminUsername(), dbConfig.adminPassword())
                 .schemas(dbConfig.schema())
                 .createSchemas(true)
+                .connectRetries(10)
+                .connectRetriesInterval(5)
                 .load();
         flyway.migrate();
     }

src/main/java/net/server/Server.java

@@ -935,8 +935,12 @@ public class Server {
 
     private PgDatabaseConfig readPgDbConfig() {
         final ServerConfig serverConfig = YamlConfig.config.server;
+        String pgDbHost = System.getenv("PG_DB_HOST");
+        if (pgDbHost == null) {
+            pgDbHost = serverConfig.PG_DB_HOST;
+        }
         return new PgDatabaseConfig(
-                serverConfig.PG_DB_NAME, serverConfig.PG_DB_HOST, serverConfig.PG_DB_SCHEMA,
+                serverConfig.PG_DB_NAME, pgDbHost, serverConfig.PG_DB_SCHEMA,
                 serverConfig.PG_DB_ADMIN_USERNAME, serverConfig.PG_DB_ADMIN_PASSWORD,
                 serverConfig.PG_DB_USERNAME, serverConfig.PG_DB_PASSWORD,
                 Duration.ofSeconds(serverConfig.INIT_CONNECTION_POOL_TIMEOUT)