Add Spring Health Checks

Author: garamb1

Diff for: Dockerfile

@@ -2,4 +2,6 @@ FROM eclipse-temurin:17
 MAINTAINER garambo.it
 ARG JAR_FILE=build/libs/*.jar
 COPY ${JAR_FILE} retrosearch.jar
-ENTRYPOINT ["java","-jar","/retrosearch.jar"]
+ENTRYPOINT ["java","-jar","/retrosearch.jar"]
+HEALTHCHECK --interval=30s --timeout=1s \
+  CMD curl -f http://localhost:3000/actuator/health || exit 1

Diff for: VERSION

@@ -1 +1 @@
-0.5.1-testing
+0.5.2-testing

Diff for: build.gradle

@@ -36,6 +36,7 @@ springBoot {
 dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
 	implementation 'org.springframework.boot:spring-boot-starter-web'
+	implementation 'org.springframework.boot:spring-boot-starter-actuator'
 	implementation 'org.jsoup:jsoup:1.16.2'
 	implementation 'commons-validator:commons-validator:1.7'
 	implementation 'org.apache.httpcomponents:httpclient:4.5.14'