Switch to postgres database in backend

backend/build.gradle

@@ -22,6 +22,7 @@ dependencies {
 	compileOnly 'org.projectlombok:lombok'
 	annotationProcessor 'org.projectlombok:lombok'
 	implementation 'org.mariadb.jdbc:mariadb-java-client'
+	implementation 'org.postgresql:postgresql'
 
 	implementation "org.springframework.boot:spring-boot-starter-security"
 	implementation "com.auth0:java-jwt:3.10.2"

backend/src/main/resources/application-prod.properties

@@ -1,5 +1,5 @@
 spring.jpa.hibernate.ddl-auto=update
-spring.datasource.url=jdbc:mariadb://db:3306/geotime
+spring.datasource.url=jdbc:postgresql://db:5432/geotime
 spring.datasource.username=root
 spring.datasource.password=supersecure
-spring.datasource.driver-class-name=org.mariadb.jdbc.Driver
+spring.datasource.driver-class-name=org.postgresql.Driver

docker-compose.yml

@@ -26,10 +26,11 @@ services:
     build: 
       context: ./sql
     volumes: 
-      - "qbc-db-data:/var/lib/mysql"
+      - "db-data:/var/lib/postgresql/data"
     environment:
-      MYSQL_DATABASE: geotime
-      MYSQL_ROOT_PASSWORD: supersecure
+      POSTGRES_DB: geotime
+      POSTGRES_PASSWORD: supersecure
+      POSTGRES_USER: root
 
 volumes:
-  qbc-db-data:
+  db-data:

sql/Dockerfile

@@ -1,2 +1,2 @@
-FROM mariadb
+FROM postgres
 ENV TZ=Europe/Berlin