# Copyright 2019 Google LLC. All rights reserved.

# Use of this source code is governed by the Apache 2.0

# license that can be found in the LICENSE file.

# Use the official maven/Java 11 image to create a build artifact.

# https://hub.docker.com/_/maven

FROM maven:3.6.2-jdk-11 as builder

# Copy local code to the container image.

WORKDIR /app

COPY pom.xml .

COPY src ./src

# Build a release artifact.

RUN mvn package -DskipTests

# Use AdoptOpenJDK for base image.

# It's important to use OpenJDK 8u191 or above that has container support enabled.

# https://hub.docker.com/r/adoptopenjdk/openjdk11

# https://docs.docker.com/develop/develop-images/multistage-build/#use-multi-stage-builds

FROM adoptopenjdk/openjdk11:alpine

# Install Imagemagick into the container image.

# For more on system packages review the system packages tutorial.

# https://cloud.google.com/run/docs/tutorials/system-packages#dockerfile

RUN apk add --no-cache imagemagick

# Copy the jar to the production image from the builder stage.

COPY --from=builder /app/target/image-processing-*.jar /image-processing.jar

# Run the web service on container startup.

CMD ["java","-Dserver.port=${PORT}","-jar","/image-processing.jar"]