Set up project structure

src/main/kotlin/ltd/hlaeja/Application.kt

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+package ltd.hlaeja
+
+import org.springframework.boot.autoconfigure.SpringBootApplication
+import org.springframework.boot.runApplication
+
+@SpringBootApplication
+class Application
+
+fun main(vararg args: String) {
+    runApplication<Application>(*args)
+}

src/main/resources/META-INF/additional-spring-configuration-metadata.json

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+{
+  "properties": [
+    {
+      "name": "spring.application.version",
+      "type": "java.lang.String",
+      "description": "Application version."
+    },
+    {
+      "name": "spring.application.build.time",
+      "type": "java.lang.String",
+      "description": "Application build time."
+    },
+    {
+      "name": "spring.application.build.os.name",
+      "type": "java.lang.String",
+      "description": "Application build os name."
+    },
+    {
+      "name": "spring.application.build.os.version",
+      "type": "java.lang.String",
+      "description": "Application build os version."
+    }
+  ]
+}

src/main/resources/application.yml

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+spring:
+  profiles:
+    active: development
+  application:
+    name: "%APP_NAME%"
+    version: "%APP_VERSION%"
+    build:
+      time: "%APP_BUILD_TIME%"
+      os:
+        name: "%APP_BUILD_OS_NAME%"
+        version: "%APP_BUILD_OS_VERSION%"
+
+---
+###############################
+### Development environment ###
+###############################
+spring:
+  config:
+    activate:
+      on-profile: development
+
+---
+##########################
+### Docker environment ###
+##########################
+spring:
+  config:
+    activate:
+      on-profile: docker
+
+---
+##############################
+### Production environment ###
+##############################
+spring:
+  config:
+    activate:
+      on-profile: production

src/main/resources/banner.txt

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+
+      _/    _/  _/                    _/                  _/_/_/                                  _/
+     _/    _/  _/    _/_/_/  _/_/          _/_/_/      _/          _/_/    _/  _/_/  _/      _/        _/_/_/    _/_/
+    _/_/_/_/  _/  _/    _/_/_/_/_/  _/  _/    _/        _/_/    _/_/_/_/  _/_/      _/      _/  _/  _/        _/_/_/_/
+   _/    _/  _/  _/    _/_/        _/  _/    _/            _/  _/        _/          _/  _/    _/  _/        _/
+  _/    _/  _/    _/_/_/  _/_/_/  _/    _/_/_/      _/_/_/      _/_/_/  _/            _/      _/    _/_/_/    _/_/_/
+                                 _/
+                              _/
+
+ :: Service     :: ${spring.application.name}
+ :: Version     :: ${spring.application.version}
+ :: Build time  :: ${spring.application.build.time}
+ :: Build OS    :: ${spring.application.build.os.name} v${spring.application.build.os.version}

src/main/resources/logback-test.xml

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+<configuration>
+  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+    <encoder>
+      <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+    </encoder>
+  </appender>
+  <root level="INFO">
+    <appender-ref ref="STDOUT"/>
+  </root>
+  <logger level="DEBUG" name="ltd.hlaeja"/>
+</configuration>

src/main/resources/logback.xml

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+<configuration>
+  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+    <encoder>
+      <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+    </encoder>
+  </appender>
+  <root level="INFO">
+    <appender-ref ref="STDOUT"/>
+  </root>
+  <springProfile name="develop|docker">
+    <logger level="DEBUG" name="ltd.hlaeja"/>
+  </springProfile>
+</configuration>

src/test/kotlin/ltd/hlaeja/ApplicationTests.kt

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+package ltd.hlaeja
+
+import org.junit.jupiter.api.Test
+import org.springframework.boot.test.context.SpringBootTest
+
+@SpringBootTest
+class ApplicationTests {
+
+    @Test
+    fun contextLoads() {
+        // place holder
+    }
+}