all in one layer

Dockerfile

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+
+# Pull base image
+FROM aiko/erlang-docker-pi:18.1
+
+MAINTAINER Aiko Mastboom <docker@aiko.sh>
+
+RUN apt-get update \
+  && apt-get upgrade -y -o Dpkg::Options::="--force-confold" \
+  && apt-get install -y unzip \
+  && curl -LO https://github.com/elixir-lang/elixir/releases/download/v1.1.1/Precompiled.zip \
+  && cd /usr && unzip /Precompiled.zip \
+  && cd - \
+  && rm -rf /Precompiled.zip \
+  && apt-get remove -y unzip \
+  && apt-get autoremove -y \
+  && apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+# Define working directory
+WORKDIR /data
+
+# Define default command
+# CMD ["bash"]

Makefile

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+DOCKER_IMAGE_VERSION=1.1.1
+DOCKER_IMAGE_NAME=aiko/elixir-docker-pi
+DOCKER_IMAGE_TAGNAME=$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_VERSION)
+
+default: build
+
+build:
+	docker build -t $(DOCKER_IMAGE_TAGNAME) .
+	docker tag -f $(DOCKER_IMAGE_TAGNAME) $(DOCKER_IMAGE_NAME):latest
+
+push:
+	docker push $(DOCKER_IMAGE_NAME)
+
+test:
+	docker run --rm $(DOCKER_IMAGE_TAGNAME) /bin/echo "Success."
+
+version:
+	docker run --rm $(DOCKER_IMAGE_TAGNAME) node --version
+	docker run --rm $(DOCKER_IMAGE_TAGNAME) npm --version