Dockerfile

#1 USING MULTI-STAGE BUILD - FOR PRODCUTION
#FROM gradle:4.8.0-jdk8-alpine AS GRADLE_BUILD_IMAGE
#USER root
#WORKDIR /app/
#COPY build.gradle gradlew gradlew.bat settings.gradle gradle /app/
#RUN gradle dependencies --stacktrace
#COPY src /app/src
#RUN gradle build --stacktrace
#
#FROM openjdk:8-jre-alpine
#WORKDIR /jar/
#COPY --from=GRADLE_BUILD_IMAGE /app/build/libs/app-0.0.1-SNAPSHOT.jar app.jar
#ENV DB_URL=127.0.0.1:3306 \
#    DB_NAME=demo_database \
#    DB_USERNAME=root \
#    DB_PASSWORD=123456 \
#    DEPLOY_TYPE=prod
#CMD ["java", \
#     "-Djava.security.egd=file:/dev/./urandom", \
#     "-jar", \
#     "/jar/app.jar", \
#     "--spring.datasource.url=jdbc:mysql://${DB_URL}/${DB_NAME}?createDatabaseIfNotExist=true&useUnicode=yes&characterEncoding=UTF-8&autoReconnect=true&useSSL=true", \
#     "--spring.datasource.username=${DB_USERNAME}", \
#     "--spring.datasource.password=${DB_PASSWORD}", \
#     "--spring.profiles.active=${DEPLOY_TYPE}"]


#2. USING GRADLE PLUGIN DOCKER - FOR DEVELOPMENT
FROM openjdk:8-jdk-alpine
VOLUME /tmp
ARG JAR_FILE
COPY ${JAR_FILE} app.jar
ENV DB_URL=127.0.0.1:3306 \
    DB_NAME=demo_database \
    DB_USERNAME=root \
    DB_PASSWORD=123456 \
    DEPLOY_TYPE=dev
ENTRYPOINT ["java", \
            "-Djava.security.egd=file:/dev/./urandom", \
            "-jar", \
            "/app.jar", \
            "--spring.datasource.url=jdbc:mysql://${DB_URL}/${DB_NAME}?createDatabaseIfNotExist=true&useUnicode=yes&characterEncoding=UTF-8&autoReconnect=true&useSSL=true", \
            "--spring.datasource.username=${DB_USERNAME}", \
            "--spring.datasource.password=${DB_PASSWORD}", \
            "--spring.profiles.active=${DEPLOY_TYPE}"]