Dockerfile ENTRYPOINT for java -cp argument-CodePudding

I'm attempting to create a docker file for running a program that takes the mysqlconnector jar when I run it on gitbash:

java -cp mysql-connector-java-8.0.26.jar test.java

How do I translate this to the Dockerfile? I have attempted setting the ENTRYPOINT as the string above but get an error saying

“Could Not Find or Load Main Class” Error test.java

CodePudding user response：

Docker does know anything about your needed dependencies. You will need to move all your classes/3rd party jars into a common folder to mimic how you are doing it locally.

FROM openjdk:11

# Set up the Environment Variable for Application
ENV APP_HOME=/app

# Create the directories for Application
RUN mkdir -p ${APP_HOME}

# Setting up the Work directory
WORKDIR ${APP_HOME}

# Exposing the Application Port
EXPOSE 8080

# COPY dependencies
COPY /send-email-api/target/your-mysql-jars ${APP_HOME}

# Copying the artifact from host machine to containers
COPY /send-email-api/target/*classes ${APP_HOME}


ENTRYPOINT java -cp mysql-connector-java-8.0.26.jar test.java

ENTRYPOINT ["java","-cp","mysql-connector-java-8.0.26.jar","test.java"]

CodePudding user response：

Maybe do you need the package's path, for example

java -cp mysql-connector-java-8.0.26.jar my/package/test.java

And obviously this class must be have a main method