Migrate profiling workshop to springboot

.github/workflows/profiling-services.yml

@@ -28,9 +28,7 @@ jobs:
   doorgame:
     needs: detect-changes
     if: needs.detect-changes.outputs.doorgame == 'true' || github.event_name == 'workflow_dispatch'
-    uses: ./.github/workflows/test-gradle-smoke.yml
+    uses: ./.github/workflows/test-spring-boot-smoke.yml
     with:
       service-path: workshop/profiling/doorgame
       port: 9090
-      java-version: '21'
-      smoke-path: /new-game

.github/workflows/test-spring-boot-smoke.yml

@@ -67,9 +67,9 @@ jobs:
 
       - name: Smoke test - root endpoint
         run: |
-          response=$(curl -sf http://localhost:${{ inputs.port }}/)
-          echo "GET / → $response"
-          [ "$response" = "Hello" ] || (echo "Expected 'Hello', got '$response'" && exit 1)
+          status=$(curl -s -o /dev/null -w "%{http_code}" http://localhost:${{ inputs.port }}/)
+          echo "GET / → HTTP $status"
+          [ "$status" = "200" ] || (echo "Expected HTTP 200, got $status" && exit 1)
 
       - name: Smoke test - test endpoint
         run: |

.gitignore

@@ -49,7 +49,7 @@ workshop/aws/ec2/*.csv
 local-hosting/multipass/terraform.tfvars
 local-hosting/multipass/ubuntu-cloudinit.yml
 workshop/aws/ec2/terraform.tfvars copy.template
-workshop/profiling/doorgame/*
+workshop/profiling/doorgame/target/*
 content/en/ninja-workshops/8-advanced-otel/otelcol_darwin_arm64_splunk
 content/en/ninja-workshops/8-advanced-otel/otelcol-contrib
 workshop/ninja/advanced otel/gateway/otelcol_darwin_arm64_splunk

workshop/profiling/doorgame/.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+wrapperVersion=3.3.1
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.6/apache-maven-3.9.6-bin.zip

workshop/profiling/doorgame/Dockerfile

@@ -1,19 +1,58 @@
-FROM gradle:8.14.2-jdk21-jammy AS build
-COPY --chown=gradle:gradle . /home/gradle/src
-WORKDIR /home/gradle/src
-#RUN gradle build --no-daemon
-RUN ./gradlew shadowJar
+FROM eclipse-temurin:21-jdk-alpine as builder
 
-FROM eclipse-temurin:21-jre-jammy as final
+ENV BUILD_HOME=/workspace/app
+ENV ARTIFACTS=${BUILD_HOME}/target/dependency
+ENV USR=svc
+ENV GRP=svc
+ENV UID=5001
+ENV GID=5001
 
-EXPOSE 9090
+RUN addgroup --gid ${GID} -S ${GRP} \
+    && adduser --disabled-password --gecos "" --ingroup ${GRP} --uid ${UID} --system ${USR}
+RUN mkdir -p ${BUILD_HOME} /home/${USR} \
+    && chown ${USR}:${GRP} -R ${BUILD_HOME} /home/${USR}
+USER ${USR}
+
+WORKDIR ${BUILD_HOME}/
+
+COPY --chown=${USR}:${GRP} mvnw .
+COPY --chown=${USR}:${GRP} .mvn .mvn
+COPY --chown=${USR}:${GRP} pom.xml .
+COPY --chown=${USR}:${GRP} src src
+
+RUN ./mvnw clean install -DskipTests
+RUN mkdir -p ${ARTIFACTS} && (cd ${ARTIFACTS}; find .. -type f -name "*.jar" -exec jar -xf {} \;)
+
+FROM eclipse-temurin:21-jre-alpine
 
-RUN mkdir /app
+ENV USR=svc
+ENV GRP=svc
+ENV UID=5001
+ENV GID=5001
+ENV APP_HOME=/app
+ENV APP_NAME=com.splunk.profiling.workshop.ServiceMain
 
-COPY --from=build /home/gradle/src/build/libs/*.jar /app/profiling-workshop-all.jar
+RUN addgroup --gid ${GID} -S ${GRP} \
+    && adduser --disabled-password --gecos "" --ingroup ${GRP} --no-create-home --uid ${UID} --system ${USR}
+RUN mkdir -p ${APP_HOME} && chown ${USR}:${GRP} -R ${APP_HOME}
 
-# Adds the latest version of the Splunk Java agent
-ADD https://github.com/signalfx/splunk-otel-java/releases/latest/download/splunk-otel-javaagent.jar .
+# Download agent as root so we can set ownership; ADD from URL doesn't support --chown
+RUN apk add --no-cache curl && \
+    curl -fsSL -o ${APP_HOME}/splunk-otel-javaagent.jar \
+      https://github.com/signalfx/splunk-otel-java/releases/latest/download/splunk-otel-javaagent.jar && \
+    chown ${USR}:${GRP} ${APP_HOME}/splunk-otel-javaagent.jar && \
+    apk del curl
+
+USER ${USR}
+WORKDIR ${APP_HOME}
+
+COPY --chown=${USR}:${GRP} --from=builder /workspace/app/target/dependency/BOOT-INF/lib /app/lib
+COPY --chown=${USR}:${GRP} --from=builder /workspace/app/target/dependency/META-INF /app/META-INF
+COPY --chown=${USR}:${GRP} --from=builder /workspace/app/target/dependency/BOOT-INF/classes /app
+
+EXPOSE 9090
 
-# Modifies the entry point
-ENTRYPOINT ["java","-javaagent:splunk-otel-javaagent.jar","-jar","/app/profiling-workshop-all.jar"]
+ENTRYPOINT java \
+    -javaagent:${APP_HOME}/splunk-otel-javaagent.jar \
+    -Dotel.java.global-autoconfigure.enabled=true \
+    -cp ${APP_HOME}:${APP_HOME}/lib/* "${APP_NAME}"