Add spring boot testcontainers support for local development

relay-store-service/build.gradle

@@ -1,6 +1,6 @@
 plugins {
     id 'com.google.cloud.tools.jib' version '3.3.1'
-    id 'org.springframework.boot' version '3.0.6'
+    id 'org.springframework.boot' version '3.1.0'
     id 'io.spring.dependency-management' version '1.1.0'
     id 'java'
     id "org.sonarqube" version "4.0.0.2929"
@@ -86,6 +86,8 @@ dependencies {
 //    annotationProcessor "io.dekorate:kubernetes-spring-starter:${dekorateVersion}"
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
     testImplementation 'org.springframework.security:spring-security-test'
+    testImplementation 'org.springframework.boot:spring-boot-testcontainers'
+    testImplementation 'org.springframework.boot:spring-boot-devtools'
     testImplementation 'org.testcontainers:junit-jupiter'
     testImplementation 'org.testcontainers:postgresql'
 

relay-store-service/src/test/java/com/relay/AppWithTestContainers.java

@@ -0,0 +1,10 @@
+package com.relay;
+
+import org.springframework.boot.SpringApplication;
+
+public class AppWithTestContainers {
+
+    public static void main(String[] args) {
+        SpringApplication.from(RelaySystemApplication::main).with(TestContainersConfiguration.class).run(args);
+    }
+}

relay-store-service/src/test/java/com/relay/TestContainersConfiguration.java

@@ -0,0 +1,17 @@
+package com.relay;
+
+import org.springframework.boot.test.context.TestConfiguration;
+import org.springframework.boot.testcontainers.service.connection.ServiceConnection;
+import org.springframework.context.annotation.Bean;
+import org.testcontainers.containers.PostgreSQLContainer;
+
+@TestConfiguration(proxyBeanMethods = false)
+public class TestContainersConfiguration {
+
+    @Bean
+    @ServiceConnection
+    public PostgreSQLContainer postgresqlContainer() {
+        return new PostgreSQLContainer();
+    }
+
+}