Added healthcheck

pom.xml: Bump version, update dependencies
Dockerfile: Added build step, Added healthcheck
SnowflakeService.java: added endpoint for health check

Dockerfile

@@ -1,9 +1,24 @@
+#
+# Build
+#
+FROM maven:3.9.7-eclipse-temurin-21-alpine AS build
+ENV HOME=/usr/app
+RUN mkdir -p $HOME
+WORKDIR $HOME
+ADD . $HOME
+RUN mvn -f $HOME/pom.xml clean compile assembly:single
+
+
+#
+# Package
+#
 FROM eclipse-temurin:21-jre-alpine
 
 LABEL authors="B00tLoad_"
-
+ARG JAR_FILE=/usr/app/target/*.jar
+RUN apk --no-cache add curl
 RUN mkdir -p /opt/app
 RUN mkdir -p /data/b00tload-tools/snowflake
-
-COPY target/SnowflakeService-jar-with-dependencies.jar /opt/app
+HEALTHCHECK CMD curl -f http://localhost:9567/health || exit 1
+COPY --from=build $JAR_FILE /opt/app
 CMD ["java", "-jar", "/opt/app/SnowflakeService-jar-with-dependencies.jar", "--docker"]

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>space.b00tload.services</groupId>
     <artifactId>SnowflakeService</artifactId>
-    <version>1.0.0</version>
+    <version>1.1.0</version>
 
     <name>SnowflakeService</name>
     <description>A tool/microservice to centrally generate snowflake IDs.</description>
@@ -76,7 +76,7 @@
         <dependency>
             <groupId>io.javalin</groupId>
             <artifactId>javalin</artifactId>
-            <version>6.1.3</version>
+            <version>6.1.6</version>
         </dependency>
         <dependency>
             <groupId>com.aayushatharva.brotli4j</groupId>
@@ -86,7 +86,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.10.1</version>
+            <version>2.11.0</version>
         </dependency>
     </dependencies>
 
@@ -108,7 +108,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
-                <version>3.6.3</version>
+                <version>3.7.0</version>
                 <configuration>
                     <tags>
                         <tag>

src/main/java/space/b00tload/services/snowflake/SnowflakeService.java

@@ -72,6 +72,11 @@ public class SnowflakeService {
                 LoggerFactory.getLogger(config.getClass()).info("{} served in {}ms to {}(UA: \"{}\")", ctx.fullUrl(), executionTimeMs, ctx.req().getRemoteAddr(), ctx.userAgent());
             });
         });
+        endpointServer.addEndpoint(new Endpoint(HandlerType.GET, "health", ctx -> {
+            JsonObject ret = new JsonObject();
+            ret.addProperty("status", "UP");
+            ctx.status(200).result(ret.toString()).contentType(ContentType.APPLICATION_JSON);
+        }));
         endpointServer.addEndpoint(new Endpoint(HandlerType.GET, "generate", ctx -> {
             JsonObject ret = new JsonObject();
             ret.addProperty("id", SnowflakeIDGenerator.getInstance().generateID());