Add a Dockerfile, installer.sh and ligo.sh for easy ligo usage with Docker

Makefile

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+build-image:
+	docker build -t marigold/ligo ./docker

docker/Dockerfile

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+# We could use one of the nomadiclab's docker images as a base instead
+# We're using 4.06 instead of 4.06.1, if this causes problems built a custom 4.06.1 image instead
+FROM ocaml/opam2:4.06
+
+USER root
+
+# Setup a custom opam repository where ligo is published
+RUN git clone https://gitlab.com/gabriel.alfour/ligo-opam-repository
+RUN opam repo add ligo-opam-repository ./ligo-opam-repository
+RUN opam update ligo-opam-repository
+
+# Install required native dependencies
+RUN apt-get -y install \ 
+    libev-dev \
+    perl \
+    pkg-config \
+    libgmp-dev \
+    libhidapi-dev \
+    m4
+
+# Install ligo
+RUN git clone https://gitlab.com/gabriel.alfour/ligo
+RUN opam update
+
+RUN cd ligo/src && \
+    opam install . --yes
+
+RUN eval $(opam env)
+
+# Use the ligo binary as a default command
+ENTRYPOINT [ "/home/opam/.opam/4.06/bin/ligo" ]

docker/installer.sh

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+#!/bin/bash
+# You can run this installer like this:
+# curl https://gitlab.com/gabriel.alfour/ligo/blob/master/docker/installer.sh | bash
+# Make sure the marigold/ligo image is published at docker hub first
+echo "Installing LIGO"
+
+# Install the ligo.sh from master
+wget https://gitlab.com/gabriel.alfour/ligo/blob/master/docker/ligo.sh
+
+# Copy the exucutable to the appropriate directory
+sudo cp ligo.sh /usr/local/bin/ligo
+sudo chmod +x /usr/local/bin/ligo
+rm ligo.sh
+
+# Installation finished, try running 'ligo' from your CLI
+echo "Installation successfull, try running 'ligo' now. \n"

docker/ligo.sh

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+#!/bin/bash
+docker run -it -v $PWD:$PWD -w $PWD marigold/ligo $@