How to run jar file using docker file in docker container

Question

I write the docker file for run the jar file and it does not create the log file for see the console below is my docker file

From ubuntu 
RUN apt-get update &         


        

Answer 1

The exec form of CMD doesn't know what redirection is, that's a shell feature.

Either use stdout for logging.

CMD ["java","-jar","/real_estate_false.jar"]

If you really need a log file in the container, run the command in a shell

CMD ["sh", "-c", "java -jar /real_estate_false.jar > var/log/jar.log"]
CMD java -jar /real_estate_false.jar > var/log/jar.log