IKC-353 Database configuration

docs/SUMMARY.md

@@ -20,6 +20,7 @@
   * [Logging](configuration/LOGGING.md)
   * [Websocket](configuration/WEBSOCKET.md)
   * [Custom context path](configuration/CUSTOM_CONTEXT_PATH.md)
+  * [Database](configuration/DATABASE.md)
 
 
 * [Features](FEATURES.md)

docs/configuration/DATABASE.md

@@ -0,0 +1,25 @@
+## Database configuration
+
+Currently, Kouncil supports two databases:
+* PostgreSQL
+* H2
+
+If no database is specified with below properties, H2 in-memory database will be used.
+
+### Configuration properties
+* `spring.datasource.url` JDBC URL of the database
+* `spring.datasource.username` login username of the database
+* `spring.datasource.password` login password of the database
+* `spring.jpa.hibernate.default_schema` sets default schema 
+
+### Example
+```yaml
+spring:
+  datasource:
+      url: jdbc:postgresql://localhost:5432/
+      username: postgres
+      password: password
+  jpa:
+    hibernate:
+      default_schema: kouncil
+```

kouncil-backend/pom.xml

@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>kouncil-backend</artifactId>
@@ -17,6 +19,8 @@
         <springdoc-openapi-ui.version>1.8.0</springdoc-openapi-ui.version>
         <swagger-annotations.version>2.2.6</swagger-annotations.version>
         <testcontainers.version>1.17.6</testcontainers.version>
+        <postgresql.version>42.7.3</postgresql.version>
+        <h2database.version>2.2.224</h2database.version>
     </properties>
 
     <dependencies>
@@ -141,6 +145,26 @@
             <version>1.1.9</version>
         </dependency>
 
+        <!--databases-->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <version>${h2database.version}</version>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.postgresql</groupId>
+            <artifactId>postgresql</artifactId>
+            <version>${postgresql.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.flywaydb</groupId>
+            <artifactId>flyway-core</artifactId>
+        </dependency>
     </dependencies>
 
     <build>

kouncil-backend/src/main/java/com/consdata/kouncil/config/database/FlywayMigration.java

@@ -0,0 +1,29 @@
+package com.consdata.kouncil.config.database;
+
+import lombok.RequiredArgsConstructor;
+import org.flywaydb.core.Flyway;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.autoconfigure.flyway.FlywayMigrationStrategy;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@RequiredArgsConstructor
+public class FlywayMigration {
+
+    @Value("${spring.jpa.hibernate.default_schema:#{null}}")
+    private String defaultSchema;
+
+    @Bean
+    public FlywayMigrationStrategy flywayMigrationStrategy() {
+        return flyway -> {
+            flyway = Flyway.configure()
+                    .configuration(flyway.getConfiguration())
+                    .baselineOnMigrate(true)
+                    .defaultSchema(defaultSchema)
+                    .load();
+
+            flyway.migrate();
+        };
+    }
+}