Dockerfile

### Build Stage
FROM eclipse-temurin:21-jdk AS builder
WORKDIR /builder
# Gradle build tool copy
COPY /src/main /builder/src/main
COPY build.gradle settings.gradle gradlew gradlew.bat /builder/
COPY gradle/wrapper/gradle-wrapper.jar /builder/gradle/wrapper/
COPY gradle/wrapper/gradle-wrapper.properties /builder/gradle/wrapper/

ARG JDBC_CONNECTION_URL
ARG JDBC_USERNAME
ARG JDBC_PASSWORD

# Gradle buildx
RUN chmod +x gradlew
RUN ./gradlew --no-daemon clean flywayMigrate jooqCodegen bootJar \
  -PjdbcConnectionUrl="${JDBC_CONNECTION_URL}" \
  -PjdbcUsername="${JDBC_USERNAME}" \
  -PjdbcPassword="${JDBC_PASSWORD}"


### RUN Stage
FROM eclipse-temurin:21-jdk AS run
WORKDIR /workspace
# Build stage copy
COPY --from=builder /builder/build/libs/*.jar modusplant-backend.jar

# OTel Java Agent 원격 다운로드
ADD https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/latest/download/opentelemetry-javaagent.jar /otel/opentelemetry-javaagent.jar

# SpringBoot/DataBase ENV (secrets/dev)
ENV TZ="Asia/Seoul"
EXPOSE 8080
LABEL maintainer="kodh10@gmail.com"

#Docker 컨테이너 실행 시 실행될 명령어
ENTRYPOINT ["java", "-jar", "modusplant-backend.jar"]