actuator added & spring profiles introduced

Dockerfile

@@ -8,4 +8,4 @@ RUN mvn -B -f pom.xml clean package -DskipTests
 FROM openjdk:11-jdk-slim
 COPY --from=build /workspace/target/*.jar app.jar
 EXPOSE 8080
-ENTRYPOINT ["java","-jar","app.jar"]
+ENTRYPOINT ["java","-jar","app.jar", "--spring.profiles.active=prod"]

README.md

@@ -19,14 +19,23 @@ In the terminal run the following command:
 $ docker-compose up
 ``` 
 
-#### Using Maven
+#### Using Maven (with H2 or local Postgres database)
 
-First make sure that you adjust the configuration file - `src/main/resources/application.yml` with connection details to your database.  
+First compile an application:
 
-Then, in the terminal run the following command:
 ```console
 $ mvn clean package
-$ mvn spring-boot:run
+```
+
+Then, you have two options either run it with H2 database or with local Postgres database. For first approach just run:
+
+```console
+$ mvn spring-boot:run 
+```
+
+For a second option, check in the configuration file - `src/main/resources/application.yml` for profile *local-postgres* if connection details are correct and if so, run the command:
+```console
+$ mvn spring-boot:run -P local-postgres
 ```
 
 #### Inside IntelliJ (with H2 or Postgres database)

pom.xml

@@ -33,6 +33,10 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-actuator</artifactId>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-web</artifactId>
@@ -186,6 +190,33 @@
 	</build>
 
 	<profiles>
+		<profile>
+			<id>default</id>
+			<activation>
+				<activeByDefault>true</activeByDefault>
+			</activation>
+			<properties>
+				<active-profiles>default</active-profiles>
+			</properties>
+		</profile>
+		<profile>
+			<id>prod</id>
+			<activation>
+				<activeByDefault>false</activeByDefault>
+			</activation>
+			<properties>
+				<active-profiles>prod</active-profiles>
+			</properties>
+		</profile>
+		<profile>
+			<id>local-postgres</id>
+			<activation>
+				<activeByDefault>false</activeByDefault>
+			</activation>
+			<properties>
+				<active-profiles>local-postgres</active-profiles>
+			</properties>
+		</profile>
 		<profile>
 			<id>component-test</id>
 			<build>

src/main/resources/application-h2.yml

@@ -1,9 +0,0 @@
-spring:
-  application:
-    name: library
-  datasource:
-    url: jdbc:h2:mem:testdb
-    driverClassName: org.h2.Driver
-    username: sa
-    password: password
-    jpa.database-platform: org.hibernate.dialect.H2Dialect

src/main/resources/application-postgres.yml

@@ -1,9 +0,0 @@
-spring:
-  application:
-    name: library
-  datasource:
-    url: jdbc:postgresql://localhost:5432/library
-    driverClassName: org.postgresql.Driver
-    username: library
-    password: library
-    jpa.database-platform: org.hibernate.dialect.PostgreSQL9Dialect

src/main/resources/application.yml

@@ -1,6 +1,39 @@
 spring:
   application:
     name: library
+  profiles:
+    active: @active-profiles@
+
+
+management:
+  endpoints:
+    web:
+      exposure:
+        include: "*"
+
+---
+spring:
+  profiles: default
+  datasource:
+    url: jdbc:h2:mem:testdb
+    driverClassName: org.h2.Driver
+    username: sa
+    password: password
+    jpa.database-platform: org.hibernate.dialect.H2Dialect
+
+---
+spring:
+  profiles: local-postgres
+  datasource:
+    url: jdbc:postgresql://localhost:5432/library
+    driverClassName: org.postgresql.Driver
+    username: library
+    password: library
+    jpa.database-platform: org.hibernate.dialect.PostgreSQL9Dialect
+
+---
+spring:
+  profiles: prod
   datasource:
     url: jdbc:postgresql://${POSTGRES_SERVER}:5432/${POSTGRES_DB}
     driverClassName: org.postgresql.Driver