add docker spring profile, mysql adapter + docker compose

Dockerfile

@@ -4,8 +4,7 @@ WORKDIR /home/gradle/src
 RUN gradle bootJar --no-daemon
 
 FROM openjdk:11-jre-slim
-EXPOSE 8080
 RUN mkdir /app
 COPY --from=build /home/gradle/src/build/libs/*.jar /app/gruppen2.jar
 ENTRYPOINT ["java"]
-CMD ["-jar", "/app/gruppen2.jar"]
+CMD ["-Dspring.profiles.active=docker", "-jar", "/app/gruppen2.jar"]

build.gradle

@@ -71,6 +71,7 @@ dependencies {
 	annotationProcessor 'org.projectlombok:lombok'
 	developmentOnly 'org.springframework.boot:spring-boot-devtools'
 	runtimeOnly 'com.h2database:h2'
+	runtimeOnly 'mysql:mysql-connector-java'
 
 	testImplementation 'org.assertj:assertj-core:3.15.0'
 	testImplementation('org.springframework.boot:spring-boot-starter-test') {

docker-compose.yaml

@@ -0,0 +1,21 @@
+version: "3.7"
+services:
+  dbmysql:
+    image: mysql:5.7
+    container_name: 'dbmysql'
+    environment:
+      MYSQL_DATABASE: 'gruppen2'
+      MYSQL_USER: 'root'
+      MYSQL_ROOT_PASSWORD: 'geheim'
+    restart: always
+    volumes:
+      - './mysql/db/storage:/var/lib/mysql'
+    ports:
+      - '3306:3306'
+  gruppen2app:
+    build: .
+    container_name: 'gruppen2app'
+    depends_on:
+      - dbmysql
+    ports:
+      - '8081:8080'

src/main/resources/application-docker.properties

@@ -0,0 +1,14 @@
+application.name=gruppen2
+
+logging.pattern.console=[${application.name}],%magenta(%-5level), %d{dd-MM-yyyy HH:mm:ss.SSS}, %highlight(%msg),%thread,%logger.%M%n
+
+spring.datasource.initialization-mode=always
+spring.datasource.url=jdbc:mysql://dbmysql:3306/gruppen2
+spring.datasource.username=root
+spring.datasource.password=geheim
+
+keycloak.principal-attribute=preferred_username
+keycloak.auth-server-url=https://keycloak.cs.hhu.de/auth
+keycloak.realm=MOPS
+keycloak.resource=demo
+keycloak.public-client=true