DCPlayer

# To build this Dockerfile :
# 1) Rename this file to exactly "Dockerfile" (without the quotes)
# 2) from a terminal, cd into this file's folder
# 3) docker build .
# 4) ???


# NOTE : path like /a/b/c/ is ABSOLUTE
#        path like a/b/c is RELATIVE


# Step  1 : we build the jar dependencies of the project (root's pom.xml)



FROM maven:3.6.0-jdk-11-slim AS globalBuild

# Copy everything from this Dockerfile's position, add it to the /app absolute path of the container environment
COPY . /app


# basically a cd command, so we can get to pom.xml's position
WORKDIR /app

# maven does the maven
# RUN mvn -f /home/app/pom.xml clean package ?
# RUN mvn /home/app/pom.xml clean package ?
# RUN mvn clean install ?
RUN mvn install
# 10 mins of waiting incoming now - at this moment we could build a new base image









# Step 2 : Running the code specific to the Dockerfile
# So serverPlayer module's code for this one




# java stuff then
FROM openjdk:11-jre-slim

# I believe The WORKDIR resets when a new FROM statement is used
WORKDIR /app


# This copies the jar we made with maven (in the globalBuild phase) and we put it in the /app folder
COPY --from=globalBuild /app/server/target/serverPlayer-1.0-SNAPSHOT-jar-with-dependencies.jar /app

# Basically the port to listen to
EXPOSE 8080

# CMD is a command ran on container start
# java -jar serverPl.......dependencies.jar
# that jar is in the /app folder and we are in the /app folder. So it's good
#ENTRYPOINT ["java","-jar","/usr/local/lib/serverPlayer.jar"] ?
CMD ["java -jar serverPlayer-1.0-SNAPSHOT-jar-with-dependencies.jar"]