Spring 引导 dockerfile 配置位置参数未加载

Question

Im Developing a simple docker file for a spring boot war file.

FROM openjdk:8-jdk-alpine

ARG CONFIG_LOC=/app_config
RUN mkdir $CONFIG_LOC

COPY app_config/* $CONFIG_LOC/ 

ARG JAR_FILE=target/*.war
COPY ${JAR_FILE} app.war

ENTRYPOINT ["java","-Dspring.config.location=/app_config","-Dspring.profiles.active=docker","-jar","/app.war"]

Some how the argument config location is not are not loading when running the spring application. So the spring application is not running.

Answer 1

Is there a reason to use these as arguments? Usually using something like ARG CONFIG_LOC means you're passing a value in your build command using --build-arg . Seems like in this build you should just use hard coded values. When running the application, any argument should be passed as an environment variable using the -e flag.