Dockerfile

# Stage 1: Cache Gradle dependencies
FROM gradle:latest AS cache
RUN mkdir -p /home/gradle/cache_home
ENV GRADLE_USER_HOME /home/gradle/cache_home
COPY build.gradle.* gradle.properties /home/gradle/app/
COPY gradle /home/gradle/app/gradle
WORKDIR /home/gradle/app
RUN gradle clean build -i --stacktrace

# Stage 2: Build Application
FROM gradle:latest AS build
COPY --from=cache /home/gradle/cache_home /home/gradle/.gradle
COPY . /usr/src/app/
WORKDIR /usr/src/app
COPY --chown=gradle:gradle . /home/gradle/src
WORKDIR /home/gradle/src
RUN gradle ij-server:buildFatJar --no-daemon

# Stage 3: Create the Runtime Image
FROM amazoncorretto:11 AS runtime
EXPOSE 8080
RUN mkdir /app \
# Make sure /data/tt-files directory exists in the runtime image
RUN mkdir -p /data/tt-files && chmod -R 777 /data/tt-files
COPY --from=build /home/gradle/src/ij-server/build/libs/ij-server-all.jar /app/ktor-docker-sample.jar
ENTRYPOINT ["java","-jar","/app/ktor-docker-sample.jar"]