feat: changes from h2 to postgres

backend/build.gradle

@@ -34,6 +34,7 @@ dependencies {
     compileOnly 'org.projectlombok:lombok'
     developmentOnly 'org.springframework.boot:spring-boot-devtools'
     runtimeOnly 'com.h2database:h2'
+    runtimeOnly 'org.postgresql:postgresql'
     annotationProcessor 'org.projectlombok:lombok'
     annotationProcessor 'org.mapstruct:mapstruct-processor:1.6.3'
     testImplementation 'org.springframework.boot:spring-boot-starter-data-jdbc-test'

backend/src/main/resources/application.yaml

@@ -1,17 +1,24 @@
 spring:
   application:
     name: backend
+
+  sql:
+    init:
+      mode: always
+      schema-locations: classpath:schema.sql
+
   datasource:
-    url: jdbc:h2:file:./data/db
-    driver-class-name: org.h2.Driver
-    username: sa
-    password: 
+    url: jdbc:postgresql://${DB_HOST}:${DB_PORT}/${DB_NAME}
+    username: ${DB_USER}
+    password: ${DB_PASSWD}
+
   jpa:
     hibernate:
       ddl-auto: update
-    database-platform: org.hibernate.dialect.H2Dialect
-  h2:
-    console:
-      enabled: true
-      path: /h2-console
+    show-sql: true
 
+    properties:
+      hibernate:
+        dialect: org.hibernate.dialect.PostgreSQLDialect
+        format_sql: true
+        default_schema: server-manager

backend/src/main/resources/schema.sql

@@ -0,0 +1 @@
+CREATE SCHEMA IF NOT EXISTS "server-manager";