Initial files and some experimenting

src/main/resources/logback.xml

@@ -0,0 +1,12 @@
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{YYYY-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+        </encoder>
+    </appender>
+    <root level="INFO">
+        <appender-ref ref="STDOUT"/>
+    </root>
+    <logger name="org.eclipse.jetty" level="INFO"/>
+    <logger name="io.netty" level="INFO"/>
+</configuration>

src/main/resources/openapi/documentation.yaml

@@ -0,0 +1,23 @@
+openapi: "3.0.3"
+info:
+  title: "Application API"
+  description: "Application API"
+  version: "1.0.0"
+servers:
+  - url: "http://0.0.0.0:8080"
+paths:
+  /:
+    get:
+      description: "Hello World!"
+      responses:
+        "200":
+          description: "OK"
+          content:
+            text/plain:
+              schema:
+                type: "string"
+              examples:
+                Example#1:
+                  value: "Hello World!"
+components:
+  schemas: { }