Add docker image (#375)

* Add Dockerfile

Add documentation

Ref #375

* Add PORT, VOLUME and reduce size of the docker image significantly

Fix doc and reduce image size

Fix #375

* Fix docker compose

substrate/docker/Dockerfile

@@ -0,0 +1,33 @@
+FROM phusion/baseimage:0.10.1
+LABEL maintainer "chevdor@gmail.com"
+
+ARG PROFILE=release
+
+RUN mkdir -p polkadot && \
+	apt-get update && \
+	apt-get upgrade -y && \
+	apt-get install -y cmake pkg-config libssl-dev git && \
+	apt-get clean && \
+	mkdir -p /root/.local/share/Polkadot && \
+	ln -s /root/.local/share/Polkadot /data
+
+RUN curl https://sh.rustup.rs -sSf | sh -s -- -y && \
+	export PATH=$PATH:$HOME/.cargo/bin && \
+	rustup update nightly && \
+	rustup target add wasm32-unknown-unknown --toolchain nightly && \
+	rustup update stable && \
+	cargo install --git https://github.com/alexcrichton/wasm-gc && \
+	git clone https://github.com/paritytech/polkadot.git && \
+	cd polkadot && \
+	./build.sh && \
+	cargo build --$PROFILE && \
+	mv target/$PROFILE/polkadot /usr/local/bin && \
+	cargo clean && \
+	rm -rf /root/.cargo /root/.rustup /tmp/*
+
+COPY version /polkadot
+WORKDIR /polkadot
+EXPOSE 30333 9933
+VOLUME ["/data"]
+
+CMD ["/bin/sh", "polkadot"]

substrate/docker/build.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+set -e
+
+# Find the current version from Cargo.toml
+VERSION=`grep "^version" ../Cargo.toml | egrep -o "([0-9\.]+)"`
+GITUSER=chevdor
+GITREPO=polkadot
+
+# Build the image
+echo "Building ${GITREPO}:$VERSION docker image, hang on!"
+time docker build --build-arg PROFILE=release -t ${GITUSER}/${GITREPO}:$VERSION .
+
+# Show the list of available images for this repo
+echo "Image is ready"
+docker images | grep ${GITREPO}
+
+echo -e "\nIf you just built the latest, you may want to update your tag:"
+echo " $ docker tag ${GITUSER}/${GITREPO}:$VERSION ${GITUSER}/${GITREPO}:latest"

substrate/docker/cleanup.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+# This script helps reduce the size of the built image
+# It removes data that is not required.
+
+export PATH=$PATH:$HOME/.cargo/bin
+
+cargo clean
+rm -rf /root/.cargo /root/.rustup /tmp/*

substrate/docker/docker-compose.yml

@@ -0,0 +1,15 @@
+version: '3'
+services:
+  polkadot:
+    build:
+      context: .
+    ports:
+      - "127.0.0.1:30333:30333/tcp"
+      - "127.0.0.1:9933:9933/tcp"
+    image: chevdor/polkadot:latest
+    volumes:
+      - "polkadot-data:/data"
+    command: polkadot
+
+volumes:
+  polkadot-data:

substrate/docker/readme-docker.adoc

@@ -0,0 +1,16 @@
+
+== Polkadot Docker
+
+=== Start a Polkadot docker container
+
+Run the following command
+
+	docker run -d chevdor/polkadot:latest polkadot
+
+=== Building the image
+
+To build your own image from the source, you can run the following command:
+
+	./build.sh
+
+NOTE: Building the image takes a while. Count at least 30min on a good machine.

substrate/docker/version

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+# This script show the polkadot version and commit ref that was
+# used to build the image.
+# If you report an issue, call this script to get all details.
+# This script will no longer be required once the polkadot cli
+# can report its commit ref.
+
+echo "-----------------------------------------"
+printf "Polkadot Docker Container: "
+polkadot --version
+printf " "
+git rev-parse HEAD
+echo "-----------------------------------------"