Add improved Dockerfile with wrapper script for seamless upgrades

Dockerfile

@@ -1,34 +1,25 @@
 #
 # Dockerfile for building Twister peer-to-peer micro-blogging
 #
+FROM ubuntu:14.04
 
-FROM		debian:testing
-MAINTAINER	Álvaro Justen <alvarojusten@gmail.com>
-
-ENV			DEBIAN_FRONTEND noninteractive
-
-# Update repositories
-RUN		echo 'deb http://http.debian.net/debian testing main contrib' > /etc/apt/sources.list
-RUN		echo 'deb http://http.debian.net/debian testing-updates main contrib' >> /etc/apt/sources.list
-RUN		echo 'deb http://security.debian.org testing/updates main contrib' >> /etc/apt/sources.list
+# Install twister-core
 RUN apt-get update
+RUN apt-get install -y git autoconf libtool build-essential libboost-all-dev libssl-dev libdb++-dev libminiupnpc-dev && apt-get clean
+#RUN git clone https://github.com/miguelfreitas/twister-core.git
+ADD . /twister-core
+RUN cd twister-core && \
+    ./bootstrap.sh && \
+    make
 
-# Install needed packages to build and run twisterd
-RUN		apt-get -y install \
-			git autoconf libtool build-essential \
-			libboost-all-dev libdb++-dev libminiupnpc-dev libssl-dev
-
-# Clean APT cache to save disk space
-RUN		apt-get clean
+# Install twister-html
+RUN git clone https://github.com/miguelfreitas/twister-html.git /twister-html
 
-# Download and build twister
-RUN		mkdir /root/.twister
-RUN		git clone https://github.com/miguelfreitas/twister-core.git /root/twister-core
-RUN		git clone https://github.com/miguelfreitas/twister-html.git /root/.twister/html
-RUN		cd /root/twister-core && ./bootstrap.sh
-RUN		cd /root/twister-core && make
+# Configure HOME directory
+# and persist twister data directory as a volume
+ENV HOME /root
+VOLUME /root/.twister
 
+# Run twisterd by default
+CMD ["/twister-core/twisterd", "-rpcuser=user", "-rpcpassword=pwd", "-rpcallowip=172.17.42.1", "-htmldir=/twister-html", "-printtoconsole"]
 EXPOSE 28332
-ENTRYPOINT	["/root/twister-core/twisterd"]
-CMD			["-rpcuser=user", "-rpcpassword=pwd", "-rpcallowip=*", \
-			 "-datadir=/root/.twister", "-htmldir=/root/.twister/html"]

README.md

@@ -28,12 +28,15 @@ Please follow the instructions for your platform:
 - [Mac OS X](https://github.com/miguelfreitas/twister-core/blob/master/doc/build-osx.md)
 - [Windows (untested)](https://github.com/miguelfreitas/twister-core/wiki/Compiling-for-Windows)
 
-Or, alternatively, you can build Twister on an isolated Linux container, using
-[docker](http://docker.io/):
+Or, alternatively, you can run Twister on an isolated Linux container, using [docker](http://docker.io/). Quickstart:
 
-    docker build -t twister https://raw.githubusercontent.com/miguelfreitas/twister-core/master/Dockerfile
-    docker run -d -p 127.0.0.1:1234:28332 twister
-    # now try to access http://127.0.0.1:1234/ on docker host
+    # Prepend "sudo -E" if you are not logged in as root
+    ./docker-container run --remote
+
+The above command downloads and runs a [pre-built image](https://index.docker.io/u/mazzolino/twister/) from the Docker index. You can also build and run your own container:
+
+    ./docker-container build
+    ./docker-container run
 
 > According to our tests, at least 1GB of RAM is needed to compile Twister.
 

docker-container

@@ -0,0 +1,52 @@
+#!/bin/sh
+#
+# Build or run a docker image of twister
+#
+
+ACTION=${1:-run}
+MODE=${2:---local}
+
+IMAGE_NAME=twister
+REMOTE_IMAGE_NAME=mazzolino/twister
+
+set -e
+
+case $ACTION in
+
+build)
+  echo Building $IMAGE_NAME
+  docker build -t $IMAGE_NAME .
+  ;;
+
+run)
+  if [ $MODE == "--remote" ]; then
+    IMAGE_NAME=$REMOTE_IMAGE_NAME
+  fi
+  echo Running $IMAGE_NAME
+  docker run -d -p 28332:28332 -v $HOME/.twister:/root/.twister $IMAGE_NAME
+  echo Twister should now be running at http://localhost:28332
+  ;;
+
+stop)
+  CID=$(docker ps | grep twister | awk '{print $1}')
+  if [ "$CID" ]; then
+    echo Stopping container $CID
+    docker stop $CID
+    docker rm $CID
+  fi
+  ;;
+
+*)
+  echo Usage:
+  echo "         $0 run"
+  echo "         Run twister from a local docker build (default)"
+  echo
+  echo "         $0 run --remote"
+  echo "         Run twister from the remote docker build at \"$REMOTE_IMAGE_NAME\""
+  echo
+  echo "         $0 build"
+  echo "         Build a local docker image for twister"
+
+  exit 2
+
+esac