# docker 빌드 및 실행

이건 안되고

```docker
# build stage
FROM gradle:7.4.2-focal as build-stage
MAINTAINER programmer.jjy@gmail.com

WORKDIR /app
COPY . ./
RUN gradle :config-server:bootJar -x test

# deploy stage
FROM openjdk:17-ubuntu20 as deploy-stage
MAINTAINER programmer.jjy@gmail.com

WORKDIR /app
COPY --from=build-stage /app/config-server/build/libs ./
COPY docker/run.sh ./

RUN chown 755 *

EXPOSE 9000
CMD ["java", "-jar", "*.jar"]
```

이건 된다

```docker
FROM openjdk:17-ubuntu20
MAINTAINER programmer.jjy@gmail.com

WORKDIR /app
COPY ./config-server/build/libs ./

ENV EXECUTABLE_JAR "*.jar"

RUN chown 755 *

EXPOSE 9000
CMD java -jar ${EXECUTABLE_JAR}
#CMD ["bash", "run.sh"]
```

차이점은

```docker
CMD ["java", "-jar", "*.jar"]

CMD java -jar ${EXECUTABLE_JAR}
```

Why??


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