# This will build the necessary webgme stack needed for plugin execution.
#
# 1. Copy this file to the root of your webgme repository (a clean copy, no node_modules, blobstorage etc.)
# 2. Build the image (tag should match the one in config.deployment.js image).
#     $ docker build -t webgme-docker-worker:0.1.1 .

# https://github.com/nodejs/docker-node/blob/3b038b8a1ac8f65e3d368bedb9f979884342fdcb/6.9/Dockerfile
FROM node:boron

RUN mkdir /usr/app

WORKDIR /usr/app

# copy app source
ADD . /usr/app/

# Install the node-modules.
RUN npm install

# Needed only if webgme is a peerDependency
RUN npm install webgme

RUN cp /usr/app/node_modules/webgme-docker-worker-manager/dockerworker.js /usr/app/dockerworker.js

###
## All below is copied from https://github.com/docker-library/openjdk/blob/master/8-jdk/Dockerfile
###

RUN apt-get update && apt-get install -y --no-install-recommends \
		bzip2 \
		unzip \
		xz-utils \
	&& rm -rf /var/lib/apt/lists/*

RUN echo 'deb http://deb.debian.org/debian jessie-backports main' > /etc/apt/sources.list.d/jessie-backports.list

# Default to UTF-8 file.encoding
ENV LANG C.UTF-8

# add a simple script that can auto-detect the appropriate JAVA_HOME value
# based on whether the JDK or only the JRE is installed
RUN { \
		echo '#!/bin/sh'; \
		echo 'set -e'; \
		echo; \
		echo 'dirname "$(dirname "$(readlink -f "$(which javac || which java)")")"'; \
	} > /usr/local/bin/docker-java-home \
	&& chmod +x /usr/local/bin/docker-java-home

# do some fancy footwork to create a JAVA_HOME that's cross-architecture-safe
RUN ln -svT "/usr/lib/jvm/java-8-openjdk-$(dpkg --print-architecture)" /docker-java-home
ENV JAVA_HOME /docker-java-home

ENV JAVA_VERSION 8u131
ENV JAVA_DEBIAN_VERSION 8u131-b11-1~bpo8+1

# see https://bugs.debian.org/775775
# and https://github.com/docker-library/java/issues/19#issuecomment-70546872
ENV CA_CERTIFICATES_JAVA_VERSION 20161107~bpo8+1

RUN set -ex; \
	\
	apt-get update; \
	apt-get install -y \
		openjdk-8-jdk="$JAVA_DEBIAN_VERSION" \
		ca-certificates-java="$CA_CERTIFICATES_JAVA_VERSION" \
	; \
	rm -rf /var/lib/apt/lists/*; \
	\
# verify that "docker-java-home" returns what we expect
	[ "$(readlink -f "$JAVA_HOME")" = "$(docker-java-home)" ]; \
	\
# update-alternatives so that future installs of other OpenJDK versions don't change /usr/bin/java
	update-alternatives --get-selections | awk -v home="$(readlink -f "$JAVA_HOME")" 'index($3, home) == 1 { $2 = "manual"; print | "update-alternatives --set-selections" }'; \
# ... and verify that it actually worked for one of the alternatives we care about
	update-alternatives --query java | grep -q 'Status: manual'

# see CA_CERTIFICATES_JAVA_VERSION notes above
RUN /var/lib/dpkg/info/ca-certificates-java.postinst configure

# If you're reading this and have any feedback on how this image could be
#   improved, please open an issue or a pull request so we can discuss it!