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"]